Commit Graph

41537 Commits

Author SHA1 Message Date
Linus Torvalds
815b196c70 Hot fixes for 5.19-rc1.
- fixes for material merged during this merge window
 
 - cc:stable fixes for more longstanding issues
 
 - minor mailmap and MAINTAINERS updates
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCYpz1+QAKCRDdBJ7gKXxA
 jrudAP9EvjTg4KhmXDoUpgJYc2oPg27nIhu1LWT8VFdsVQ6mPwEA//HPvPhjah8u
 C1M183VxKL9trZf22DBn2BbD3kBDIAo=
 =9LgC
 -----END PGP SIGNATURE-----

Merge tag 'mm-hotfixes-stable-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull mm hotfixes from Andrew Morton:
 "Fixups for various recently-added and longer-term issues and a few
  minor tweaks:

   - fixes for material merged during this merge window

   - cc:stable fixes for more longstanding issues

   - minor mailmap and MAINTAINERS updates"

* tag 'mm-hotfixes-stable-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/oom_kill.c: fix vm_oom_kill_table[] ifdeffery
  x86/kexec: fix memory leak of elf header buffer
  mm/memremap: fix missing call to untrack_pfn() in pagemap_range()
  mm: page_isolation: use compound_nr() correctly in isolate_single_pageblock()
  mm: hugetlb_vmemmap: fix CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON
  MAINTAINERS: add maintainer information for z3fold
  mailmap: update Josh Poimboeuf's email
2022-06-05 17:05:38 -07:00
Linus Torvalds
d717180e7f A single fix for x86/SGX to prevent that memory which is allocated for an
SGX enclave is accounted to the wrong memory control group.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmKcd1MTHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYoaalD/0TdNTH+LiM0BpEZ4VHIAFhE9mgfaU/
 1HIZcXEvAzPqS+iLMYAPo2dS7hNKv1GCCD8HcuOdEwC/CyTdrcpvhCNeQXCagF38
 BHtzVCMFd/Y6U7ERNVsaHiuHFSkF+3QHef4Gzljzblgj1FK7s55z9tlQmE3pElOg
 UGfRoD32ODUtQPmOCjlOhFjsUUtFpdpXFCbjPPFdOqJ80LbdKR2s/0IBpHMk1xoz
 ESmS10tVC3a5np1/4Ge8vRCZnewOpulL/Is84Q8MbCvxI8NQh9pD7Imom/wRjSAS
 19N+sWh7ywuUtAOVqJ23dDc6SOL3yjM4HbmsEYRGPsgzuJ5crezLcrKgCFeGmz/4
 4zbU3R9hzzXQy8ZqNjbj71FKswfUDcMLb26GA/62d2N6zR7O0TSzfIrpIYp+GwJ3
 5KaM0LiKoW/LXGfwEdEBWpCkK1OKgMXmZ5IQlr5bRz3Qihqzkk65Dgfo66XRt+jb
 DhMHW+cMfLwSX72QER6LyP2jPfUSCZgy5Pn8LfXUH30fc084gyrAPq2eqtVnf0lf
 Hq5/r1nMosPE0CtxHM1vNRj5M052nQxXhDhdsTcoO6PVBrvEjJbkanj3XbNRk66T
 FDWGWmdtDC2su6p0ezwbARMxYnsSS40GVsp/DoOu+SHxlAm9VkomY+QDJ2FuoJnb
 K0XfW5vV9MEsvw==
 =cuLD
 -----END PGP SIGNATURE-----

Merge tag 'x86-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 SGX fix from Thomas Gleixner:
 "A single fix for x86/SGX to prevent that memory which is allocated for
  an SGX enclave is accounted to the wrong memory control group"

* tag 'x86-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sgx: Set active memcg prior to shmem allocation
2022-06-05 11:00:43 -07:00
Linus Torvalds
0b7da15c21 Use PAGE_ALIGNED() instead of open coding it in the x86/mm code.
-----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmKcdlsTHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYoaDeD/oDyKpbOf+ta83AyZm+h6Q+KzYf44n6
 XRaT8Ip1f/aUk+Ucv2YLpZT/LRiBenmJpsdDRaGhje83pS2cnXStd8UhEBjiWmeq
 vBGR8QpXJtFna1Ouizwwq+Pp2mnktK+YEk+Qf17z9UwrRzqXlgTIJqPWsVY1plmV
 lHVhThdkr09PR4aSBN9TQzTFxG0Qtf3mHbsRyPTzODldMtSbdCy9Zy2xlTigDIJX
 uTU/ykoB8qZpJguacAZpExwxvoRHy95cpxNCQfC5paeAv3gJ0U1b3PAJA4VkVlko
 h/2crEzHV0MZRx12o1le72K/2UfuvTeb3949VD3ZBIE5fPSH/K/niwl9BtntXSQj
 Bs0Kbm3k94tJz2VunG0FO7ayJ8/KL98zLHXQR6yRBTGvtkj9m7vhUMaN268NSLQH
 meAIuMreJejfsKV2Z/z9y+nSWebKdEQ0xkOq51qe3s2ivroKshTUNR0h7S35xyw5
 +R8lzJZH4rVVBOcxzCLTaIVsJbVHGfE65gb6JIyUT2sRRxXm53gYPC2rvIRzi8eA
 1h1ODpz0pn3LewXsigOJGmiK11Dda5uJAF58t1BJmGi9kXSH/CVfYBTcDOXcYNHy
 sA+oq+yrQ5RSywv1D9zuDzOgbcEZ1mB82aWuy4Li+k9uhdCyNIsNy7Nbw9paCDZk
 Oy+IMDLroCieSw==
 =KN22
 -----END PGP SIGNATURE-----

Merge tag 'x86-mm-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 mm cleanup from Thomas Gleixner:
 "Use PAGE_ALIGNED() instead of open coding it in the x86/mm code"

* tag 'x86-mm-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm: Use PAGE_ALIGNED(x) instead of IS_ALIGNED(x, PAGE_SIZE)
2022-06-05 10:57:35 -07:00
Linus Torvalds
9784edd73a X86 microcode updates:
- Disable late microcode loading by default. Unless the HW people get
     their act together and provide a required minimum version in the
     microcode header for making a halfways informed decision its just
     lottery and broken.
 
   - Warn and taint the kernel when microcode is loaded late
 
   - Remove the old unused microcode loader interface
 
   - Remove a redundant perf callback from the microcode loader
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmKcdjETHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYoUUTD/92cLMB0g7XP8yFN+ZiHl7uoaDtE0UR
 WfapnMNL3tKKVnuwEMg83AjtyQ+O1JNZ6iS5K8jmiBnBByg6EQccz8pfe3jUQ6Ar
 gOLWV1F4tRbJD2NqqiWOo/l5qs5hJaz/QeE+oyCP0fvw6DOZixepG5RzveFSSwAa
 G2Q03GsGEu84SXlVAjagMSU6tYlBnlZBfKRB8NiNxkW8CLcJY0NfDCunbN6icEbH
 AQHXeviM3GWMKJA9R9DeSvYq9PbN5o2UVmcFQWsDAzZ8Ne2qCqskjoGNjuQ9s+72
 G35fm5d7dtIcrYg4PSJN0JDJP4HbcfSjhUrbdH4iAClTkGnNQERfuDV9O92/lYJE
 hd9c8yCegD0NWQ4dMNNrM5PSbWbQK7ajqRYVvqqouJZpH+IDtajA1jxEe+1msB8P
 xmXQDcdSMOyVs+Bw3Djf3tt8Qqhu4jxnf3y711oLklPwwh9lq9SvaWiX9ZFoYgdn
 1HVtQUAOdgDmncs5BQ8dpuwtoYXH5p31n0wh57emyFXl7wA93eWouuFczQ6mSol9
 LLdd9c+q9mBFIo0ult+fVhEOTDJF+27s3YXOpge6BAqei/SQIU4c5oq51CukV7ap
 TPzWAayq0lsAwXn1k6r86Zkewh1C2SQTyk1J3zMehZlSVpwSWbEQASYlKywmh6YB
 N+6/0XtHDAVK5Q==
 =DQjr
 -----END PGP SIGNATURE-----

Merge tag 'x86-microcode-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 microcode updates from Thomas Gleixner:

 - Disable late microcode loading by default. Unless the HW people get
   their act together and provide a required minimum version in the
   microcode header for making a halfways informed decision its just
   lottery and broken.

 - Warn and taint the kernel when microcode is loaded late

 - Remove the old unused microcode loader interface

 - Remove a redundant perf callback from the microcode loader

* tag 'x86-microcode-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode: Remove unnecessary perf callback
  x86/microcode: Taint and warn on late loading
  x86/microcode: Default-disable late loading
  x86/microcode: Rip out the OLD_INTERFACE
2022-06-05 10:55:23 -07:00
Linus Torvalds
a925128092 A set of small x86 cleanups:
- Remove unused headers in the IDT code
 
   - Kconfig indendation and comment fixes
 
   - Fix all 'the the' typos in one go instead of waiting for bots to fix
     one at a time.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmKcdUsTHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYofu/EACJEYM67sgOGX/OPxSI2QrcqIPajI/u
 EMrNi69jR8XBgFUwnYRLC+eoC7nvYdpTaUHzQklS2xhE8lcZ4PcMejy9nHECe8MI
 sYA38gXeGamM4pzFQgpsX0Eoq1OX3iH165dCnSgRfGg2Zv6YovmcGk2fkHtA0fXn
 Sqp5fy33wK2U+ghY5MrJwVQ2SshbDp4p7SJ80iLCfdHvtKzQi02EH4CjrZ/guoJL
 bjdiWXA+eIDrPXhoPiBkFQ3cG/vHPc/oj2SEAnBV5oC+hdgjFebiz6CNYbFw0QI9
 MnJQlvhu/oe66J6sRGfqPABm4yh4omNSbjNjbWr9ahoVPvprH9gJ2EMBx6qOT3pe
 sG6pluiQAZXBoOpRqR45vws4Ypq5onyv4OwMzEFNZVT9kzr1qrMJtsXIlffM/hHE
 zgygCV1nqWznUueZKcI6XkXVtawte9wfpujDuZhCgoD/UaIixulW8zpK/0h9iUI5
 03u0lXse20h7kEmJYZ+vgQwSci/6i10U1X7+VngIrBAt24gtzigdKd6FLljSPp0y
 GOc9c79qNdm0Ayofko/m+XtwXw8UJ2Pbtkvku8qmyUR3ffUlBD+qcTPIZ6TZ8aPb
 w17k64zxEMQRYlMm8uHRg8KVJXuWD8nO3BSzwpwPVyckpsL4CkEcgdij7HMN7dLO
 +GCpzbvafupD6Q==
 =vSDr
 -----END PGP SIGNATURE-----

Merge tag 'x86-cleanups-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Thomas Gleixner:
 "A set of small x86 cleanups:

   - Remove unused headers in the IDT code

   - Kconfig indendation and comment fixes

   - Fix all 'the the' typos in one go instead of waiting for bots to
     fix one at a time"

* tag 'x86-cleanups-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Fix all occurences of the "the the" typo
  x86/idt: Remove unused headers
  x86/Kconfig: Fix indentation of arch/x86/Kconfig.debug
  x86/Kconfig: Fix indentation and add endif comments to arch/x86/Kconfig
2022-06-05 10:53:41 -07:00
Linus Torvalds
1fd9f4ce84 Use strlcpy() instead of strscpy() in arch_setup()
-----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmKcdNYTHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYod9oD/9Y3JOKOKfXKz6VTZeIkaq8bwizjCxX
 tzTdeDy6pCYHv1z63rhwTpB4lUl+dt5CUiaf9YjEU3bdgNBtba/C0j6rx2Zf7Qk0
 hw2CjsPahEdFGRRgzbMF6fOUHxsOV/fZ5S4w9XcV7u5QAMkoj/w3rl7Eh2Vn9KbL
 B8I7Cl+Vyec2feknWau3s9vt4GRt+EYR08YmjWL1bxzjFss8JTs0mpzVnuR/QurU
 O20UIGS/167EvacmC15Ehht3EJEOykte3iWVFCMgEwFsZTOpByCQGGnDQCVik0o9
 6gYESc6fRNfTbC+rRGMs2LWXwsYfJMAqYLkSQIfOIETqysxu2HoWoCFWhpmaKLYr
 DEL3mVTy1LB7TqY6+C0P2UCeU9CuNr3fejQf4SsDIsNmTlUuv+FHrDCfi9cotX/G
 gmRa/29BASMgoVzF/QnzrEUGvEqU5S7wJgBxAD0cTw4IwvXz80KgbHNEl9utOCjB
 ceXoPh3zOaEnBZn7B5HXRq52r2KOA+T7dL/6blPfuYokZrKftq8z9fLDXEqKSLFY
 2lSxtowzAZiUxZDI5Z6qoBmEeEXrbxK3r7ro42KXetvudDWAoCspf2Qz8kEgZOCV
 ykDMPEnhesL8eE1LJzaJBSggz3LmQAslxIZ+CcZlFMAI+vOmbFEbMYVYxDzyJECN
 LEK9uNoEY1mMeQ==
 =gNpf
 -----END PGP SIGNATURE-----

Merge tag 'x86-boot-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 boot update from Thomas Gleixner:
 "Use strlcpy() instead of strscpy() in arch_setup()"

* tag 'x86-boot-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/setup: Use strscpy() to replace deprecated strlcpy()
2022-06-05 10:49:42 -07:00
Linus Torvalds
fa11c28046 Two small perf updates:
- Make the ICL event constraints match reality
 
   - Remove a unused local variable
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmKcc6gTHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYoZA7EAC6zZqvX+yJn3c5C3rQDOyCJ74Zvawc
 IG3t35ADS7IbZm0rOjSdZz89V5Gz8bzMsjYHdADQw1URajuXvVwLkCFG5oY0owyo
 XSlAYBnMOYQ0nnZ/PqKO91oieyU0z3dkP5BHpFF0ZcqD4fSZaFvwtx2kneXDJBlw
 WIQqRYgRaKBRt+FTwmcm2ow3+afO9TY0oleOSbc0dokbGhwCO9hsuP0LwyMtA374
 zGPzsHdHizvDUq+gEW5ZnmjAhrXqNnK6QOLZQukRlP4I6bnQlCkB9mtu/k6jEaAo
 xl4o0VvB0y4NoSNPBSvrIHF360nIsSMqIBV0TPv4lI1B+p4/Dr9cQTn3J+J43x+c
 SqpDs2JH22S6zhjgDPKt+hAyaKkPJan+E4dy33sbT8zlrwODGPcso6WdpdWQshQg
 WJU1HhHq6PU1vcKJEoQmagipFN70O3elufVsW5+qddJ3tmPM2ghET5Ib1E2+Odrk
 NICXW2aduogQL+9H62SOdXwRcuF6kUrO0J8I7l61eyGxr/XpOlg0vljgNgS7HxF8
 IyrrfuNsj+p5SpVmg9LRwE9+vG5xi9lpGWoYmlp2RPTzOn0OfLtYI2rto70s6i6F
 xjvIaer1ulW4OP4cvHZd6VTVUl8ZE5lRM4VqdTFgzFpR7AuBMW+PVXcF5l4ubtZp
 x2NC+i0/3sQ7JQ==
 =ZK+2
 -----END PGP SIGNATURE-----

Merge tag 'perf-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Thomas Gleixner:

  - Make the ICL event constraints match reality

  - Remove a unused local variable

* tag 'perf-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Remove unused local variable
  perf/x86/intel: Fix event constraints for ICL
2022-06-05 10:40:31 -07:00
Linus Torvalds
5cc47d4a92 Trivial indentation fix in Kconfig
-----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmKcc1ETHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYoSc4EACxpLUL91gbrzq2s4N64YgHstWBvuZ7
 IzVYg1IDV9aWyZ20G8AZowxtRfeVReoe9BA3C/4mlib03IZwYRbuYemHzSmTD9fq
 CfA1HAgU98jR10V3zUNVjRHs12tnBXlfEBob4l3AGz0nTqoQ6ssfPpQ02yC0zK7s
 eUYr3s4q+lvWRbLZZqSPYkFcF7tH1no4OJG2ObhclUbUKEyI0iistYNqldqzTs2o
 tgDetrkInSEwrdJjedefhj/pWwEFrw6OiQWkWYMd3C6BBLZfhbk/O7txHltuOVeZ
 t88CpLOMnuZhFJXD3C/wlF4QWd7DCnpuwa7Z94VZCz5uVeCDfCoTcETzUjNEbHNw
 ZvB1TUVhBJTzkZ2lCctMMVdqfDtaYvxFY+mSedKlGhFb2P2GyIfM38jIdTq9V2oN
 KxVVIKn4LflX+DB+zsi3g4+dwp4CTHMMKOnFZDIBJ9VOnQzaQRaCdcILpd/s6niO
 z5mNm+kc+bEBuPjQCPk6cQRkBq0a93OynszOuLdyg+PkFOFZBzIac/O6+FTS5ics
 VWk73/uAP8KeS8UU2VeO0bfUojwTIiMmXuOox3bBZ++PkqchrU2T6z7ThmYuvMNr
 LUh28saPAyKmbrnkUt3q88hGeJJCbGyiYLFrYs6mTTU8fUdnrw8BueYiEnKg8dVr
 uZFM/bS+ZhNxXQ==
 =K8c6
 -----END PGP SIGNATURE-----

Merge tag 'perf-core-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixlet from Thomas Gleixner:
 "Trivial indentation fix in Kconfig"

* tag 'perf-core-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/Kconfig: Fix indentation in the Kconfig file
2022-06-05 10:39:20 -07:00
Linus Torvalds
44688ffd11 A set of objtool fixes:
- Handle __ubsan_handle_builtin_unreachable() correctly and treat it as
     noreturn.
 
   - Allow architectures to select uaccess validation
 
   - Use the non-instrumented bit test for test_cpu_has() to prevent escape
     from non-instrumentable regions.
 
   - Use arch_ prefixed atomics for JUMP_LABEL=n builds to prevent escape
     from non-instrumentable regions.
 
   - Mark a few tiny inline as __always_inline to prevent GCC from bringing
     them out of line and instrumenting them.
 
   - Mark the empty stub context_tracking_enabled() as always inline as GCC
     brings them out of line and instruments the empty shell.
 
   - Annotate ex_handler_msr_mce() as dead end
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmKccvMTHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYoW39EAC1w/mSwn3b1lYkzOUcoe4EOMXzao2U
 my0ThnPNpa5k14Xfp6tOIpWRGTuW6mcVi4g+x4+LJo9V5tt5BxmMO1VFrTCQKn7H
 iJ1sWZNGq503aXldIT+pC0Zz67CIVnbGiz0D67aEYQ7w4ACdkubx8kcx5Of7BNbm
 KyQllP8XFXy7b+wgc8MrX1h/wPXNV9PBJwRAFrBw52c4s5euYui7iUNUm4RtKRem
 OpI3RFholAITLzvV8j+Xs9EmfUDjvmU3e1NEEas2n3MHm7tkYo5aSOSYX/Z7C5YD
 MvpMS3UAgwRGdaXvRVJK7eWcwayjODGGYrW9x9w9RMKM492uB4vAzfr4PE3Lru5G
 mnOxDjEP4QRK7Jl8bC0Idc5G6bxmw4DnQl7vkoaNYn3EyxKaEvREUokFKy5eWp3U
 klFQZXgQreUGSEkVA8VW7yT6knzVNsBk2WSFDUPdQZ0PV7JAVLyGZX8gEbhDyyim
 czkmI21A3hmGR97FKxyQ0I1N6q8eKSodZWbquPdOW52Jdt6pkpzUqPok9r74PK/p
 83ip/bNthbaR8FccNCHbnCLd8kvp6lsjqLqnMQHhMtUju6uRPRTzW1rxKik3Cbfh
 8VmqP6ltNGD7MkQW/jW+Vq7GIM+9onnEHbA/aEntH/ZKDHEefYtE66T0BjSrS6YK
 5dMr/vz4Jx1bwg==
 =eNVp
 -----END PGP SIGNATURE-----

Merge tag 'objtool-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool fixes from Thomas Gleixner:

 - Handle __ubsan_handle_builtin_unreachable() correctly and treat it as
   noreturn

 - Allow architectures to select uaccess validation

 - Use the non-instrumented bit test for test_cpu_has() to prevent
   escape from non-instrumentable regions

 - Use arch_ prefixed atomics for JUMP_LABEL=n builds to prevent escape
   from non-instrumentable regions

 - Mark a few tiny inline as __always_inline to prevent GCC from
   bringing them out of line and instrumenting them

 - Mark the empty stub context_tracking_enabled() as always inline as
   GCC brings them out of line and instruments the empty shell

 - Annotate ex_handler_msr_mce() as dead end

* tag 'objtool-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/extable: Annotate ex_handler_msr_mce() as a dead end
  context_tracking: Always inline empty stubs
  x86: Always inline on_thread_stack() and current_top_of_stack()
  jump_label,noinstr: Avoid instrumentation for JUMP_LABEL=n builds
  x86/cpu: Elide KCSAN for cpu_has() and friends
  objtool: Mark __ubsan_handle_builtin_unreachable() as noreturn
  objtool: Add CONFIG_HAVE_UACCESS_VALIDATION
2022-06-05 09:45:27 -07:00
Linus Torvalds
d0e60d46bc Bitmap patches for 5.19-rc1
This series includes the following patchsets:
  - bitmap: optimize bitmap_weight() usage(w/o bitmap_weight_cmp), from me;
  - lib/bitmap.c make bitmap_print_bitmask_to_buf parseable, from Mauro
    Carvalho Chehab;
  - include/linux/find: Fix documentation, from Anna-Maria Behnsen;
  - bitmap: fix conversion from/to fix-sized arrays, from me;
  - bitmap: Fix return values to be unsigned, from Kees Cook.
 
 It has been in linux-next for at least a week with no problems.
 -----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEEi8GdvG6xMhdgpu/4sUSA/TofvsgFAmKaEzYACgkQsUSA/Tof
 vsiGKwv8Dgr3G0mLbSfmHZqdFMIsmSmwhxlEH6eBNtX6vjQbGafe/Buhj/1oSY8N
 NYC4+5Br6s7MmMRth3Kp6UECdl94TS3Ka06T+lVBKkG+C+B1w1/svqUMM2ZCQF3e
 Z5R/HhR6av9X9Qb2mWSasWLkWp629NjdtRsJSDWiVt1emVVwh+iwxQnMH9VuE+ao
 z3mvaQfSRhe4h+xCZOiohzFP+0jZb1EnPrQAIVzNUjigo7mglpNvVyO7p/8LU7gD
 dIjfGmSbtsHU72J+/0lotRqjhjORl1F/EILf8pIzx5Ga7ExUGhOzGWAj7/3uZxfA
 Cp1Z/QV271MGwv/sNdSPwCCJHf51eOmsbyOyUScjb3gFRwIStEa1jB4hKwLhS5wF
 3kh4kqu3WGuIQAdxkUpDBsy3CQjAPDkvtRJorwyWGbjwa9xUETESAgH7XCCTsgWc
 0sIuldWWaxC581+fAP1Dzmo8uuWBURTaOrVmRMILQHMTw54zoFyLY+VI9gEAT9aV
 gnPr3M4F
 =U7DN
 -----END PGP SIGNATURE-----

Merge tag 'bitmap-for-5.19-rc1' of https://github.com/norov/linux

Pull bitmap updates from Yury Norov:

 - bitmap: optimize bitmap_weight() usage, from me

 - lib/bitmap.c make bitmap_print_bitmask_to_buf parseable, from Mauro
   Carvalho Chehab

 - include/linux/find: Fix documentation, from Anna-Maria Behnsen

 - bitmap: fix conversion from/to fix-sized arrays, from me

 - bitmap: Fix return values to be unsigned, from Kees Cook

It has been in linux-next for at least a week with no problems.

* tag 'bitmap-for-5.19-rc1' of https://github.com/norov/linux: (31 commits)
  nodemask: Fix return values to be unsigned
  bitmap: Fix return values to be unsigned
  KVM: x86: hyper-v: replace bitmap_weight() with hweight64()
  KVM: x86: hyper-v: fix type of valid_bank_mask
  ia64: cleanup remove_siblinginfo()
  drm/amd/pm: use bitmap_{from,to}_arr32 where appropriate
  KVM: s390: replace bitmap_copy with bitmap_{from,to}_arr64 where appropriate
  lib/bitmap: add test for bitmap_{from,to}_arr64
  lib: add bitmap_{from,to}_arr64
  lib/bitmap: extend comment for bitmap_(from,to)_arr32()
  include/linux/find: Fix documentation
  lib/bitmap.c make bitmap_print_bitmask_to_buf parseable
  MAINTAINERS: add cpumask and nodemask files to BITMAP_API
  arch/x86: replace nodes_weight with nodes_empty where appropriate
  mm/vmstat: replace cpumask_weight with cpumask_empty where appropriate
  clocksource: replace cpumask_weight with cpumask_empty in clocksource.c
  genirq/affinity: replace cpumask_weight with cpumask_empty where appropriate
  irq: mips: replace cpumask_weight with cpumask_empty where appropriate
  drm/i915/pmu: replace cpumask_weight with cpumask_empty where appropriate
  arch/x86: replace cpumask_weight with cpumask_empty where appropriate
  ...
2022-06-04 14:04:27 -07:00
Linus Torvalds
4ccbe91de9 xen: branch for v5.19-rc1b
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCYprzPAAKCRCAXGG7T9hj
 vuTzAQC4GiDXcD/cfLVcEqdyw1diCWZjuOfuznUqy5ZUBAZjvAD/draFHTeO96+k
 qyZyzFggPIziaAOIUZ2DkJ/NqSAmbA8=
 =dl1E
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-5.19-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull more xen updates from Juergen Gross:
 "Two cleanup patches for Xen related code and (more important) an
  update of MAINTAINERS for Xen, as Boris Ostrovsky decided to step
  down"

* tag 'for-linus-5.19-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: replace xen_remap() with memremap()
  MAINTAINERS: Update Xen maintainership
  xen: switch gnttab_end_foreign_access() to take a struct page pointer
2022-06-04 13:42:53 -07:00
Linus Torvalds
67850b7bdc While looking at the ptrace problems with PREEMPT_RT and the problems
of Peter Zijlstra was encountering with ptrace in his freezer rewrite
 I identified some cleanups to ptrace_stop that make sense on their own
 and move make resolving the other problems much simpler.
 
 The biggest issue is the habbit of the ptrace code to change task->__state
 from the tracer to suppress TASK_WAKEKILL from waking up the tracee.  No
 other code in the kernel does that and it is straight forward to update
 signal_wake_up and friends to make that unnecessary.
 
 Peter's task freezer sets frozen tasks to a new state TASK_FROZEN and
 then it stores them by calling "wake_up_state(t, TASK_FROZEN)" relying
 on the fact that all stopped states except the special stop states can
 tolerate spurious wake up and recover their state.
 
 The state of stopped and traced tasked is changed to be stored in
 task->jobctl as well as in task->__state.  This makes it possible for
 the freezer to recover tasks in these special states, as well as
 serving as a general cleanup.  With a little more work in that
 direction I believe TASK_STOPPED can learn to tolerate spurious wake
 ups and become an ordinary stop state.
 
 The TASK_TRACED state has to remain a special state as the registers for
 a process are only reliably available when the process is stopped in
 the scheduler.  Fundamentally ptrace needs acess to the saved
 register values of a task.
 
 There are bunch of semi-random ptrace related cleanups that were found
 while looking at these issues.
 
 One cleanup that deserves to be called out is from commit 57b6de08b5
 ("ptrace: Admit ptrace_stop can generate spuriuos SIGTRAPs").  This
 makes a change that is technically user space visible, in the handling
 of what happens to a tracee when a tracer dies unexpectedly.
 According to our testing and our understanding of userspace nothing
 cares that spurious SIGTRAPs can be generated in that case.
 
 The entire discussion can be found at:
   https://lkml.kernel.org/r/87a6bv6dl6.fsf_-_@email.froward.int.ebiederm.org
 
 Eric W. Biederman (11):
       signal: Rename send_signal send_signal_locked
       signal: Replace __group_send_sig_info with send_signal_locked
       ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP
       ptrace/xtensa: Replace PT_SINGLESTEP with TIF_SINGLESTEP
       ptrace: Remove arch_ptrace_attach
       signal: Use lockdep_assert_held instead of assert_spin_locked
       ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
       ptrace: Document that wait_task_inactive can't fail
       ptrace: Admit ptrace_stop can generate spuriuos SIGTRAPs
       ptrace: Don't change __state
       ptrace: Always take siglock in ptrace_resume
 
 Peter Zijlstra (1):
       sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state
 
  arch/ia64/include/asm/ptrace.h    |   4 --
  arch/ia64/kernel/ptrace.c         |  57 ----------------
  arch/um/include/asm/thread_info.h |   2 +
  arch/um/kernel/exec.c             |   2 +-
  arch/um/kernel/process.c          |   2 +-
  arch/um/kernel/ptrace.c           |   8 +--
  arch/um/kernel/signal.c           |   4 +-
  arch/x86/kernel/step.c            |   3 +-
  arch/xtensa/kernel/ptrace.c       |   4 +-
  arch/xtensa/kernel/signal.c       |   4 +-
  drivers/tty/tty_jobctrl.c         |   4 +-
  include/linux/ptrace.h            |   7 --
  include/linux/sched.h             |  10 ++-
  include/linux/sched/jobctl.h      |   8 +++
  include/linux/sched/signal.h      |  20 ++++--
  include/linux/signal.h            |   3 +-
  kernel/ptrace.c                   |  87 ++++++++---------------
  kernel/sched/core.c               |   5 +-
  kernel/signal.c                   | 140 +++++++++++++++++---------------------
  kernel/time/posix-cpu-timers.c    |   6 +-
  20 files changed, 140 insertions(+), 240 deletions(-)
 
 Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEgjlraLDcwBA2B+6cC/v6Eiajj0AFAmKaXaYACgkQC/v6Eiaj
 j0CgoA/+JncSQ6PY2D5Jh1apvHzmnRsFXzr3DRvtv/CVx4oIebOXRQFyVDeD5tRn
 TmMgB29HpBlHRDLojlmlZRGAld1HR/aPEW9j8W1D3Sy/ZFO5L8lQitv9aDHO9Ntw
 4lZvlhS1M0KhATudVVBqSPixiG6CnV5SsGmixqdOyg7xcXSY6G1l2nB7Zk9I3Tat
 ZlmhuZ6R5Z5qsm4MEq0vUSrnsHiGxYrpk6uQOaVz8Wkv8ZFmbutt6XgxF0tsyZNn
 mHSmWSiZzIgBjTlaibEmxi8urYJTPj3vGBeJQVYHblFwLFi6+Oy7bDxQbWjQvaZh
 DsgWPScfBF4Jm0+8hhCiSYpvPp8XnZuklb4LNCeok/VFr+KfSmpJTIhn00kagQ1u
 vxQDqLws8YLW4qsfGydfx9uUIFCbQE/V2VDYk5J3Re3gkUNDOOR1A56hPniKv6VB
 2aqGO2Fl0RdBbUa3JF+XI5Pwq5y1WrqR93EUvj+5+u5W9rZL/8WLBHBMEz6gbmfD
 DhwFE0y8TG2WRlWJVEDRId+5zo3di/YvasH0vJZ5HbrxhS2RE/yIGAd+kKGx/lZO
 qWDJC7IHvFJ7Mw5KugacyF0SHeNdloyBM7KZW6HeXmgKn9IMJBpmwib92uUkRZJx
 D8j/bHHqD/zsgQ39nO+c4M0MmhO/DsPLG/dnGKrRCu7v1tmEnkY=
 =ZUuO
 -----END PGP SIGNATURE-----

Merge tag 'ptrace_stop-cleanup-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

Pull ptrace_stop cleanups from Eric Biederman:
 "While looking at the ptrace problems with PREEMPT_RT and the problems
  Peter Zijlstra was encountering with ptrace in his freezer rewrite I
  identified some cleanups to ptrace_stop that make sense on their own
  and move make resolving the other problems much simpler.

  The biggest issue is the habit of the ptrace code to change
  task->__state from the tracer to suppress TASK_WAKEKILL from waking up
  the tracee. No other code in the kernel does that and it is straight
  forward to update signal_wake_up and friends to make that unnecessary.

  Peter's task freezer sets frozen tasks to a new state TASK_FROZEN and
  then it stores them by calling "wake_up_state(t, TASK_FROZEN)" relying
  on the fact that all stopped states except the special stop states can
  tolerate spurious wake up and recover their state.

  The state of stopped and traced tasked is changed to be stored in
  task->jobctl as well as in task->__state. This makes it possible for
  the freezer to recover tasks in these special states, as well as
  serving as a general cleanup. With a little more work in that
  direction I believe TASK_STOPPED can learn to tolerate spurious wake
  ups and become an ordinary stop state.

  The TASK_TRACED state has to remain a special state as the registers
  for a process are only reliably available when the process is stopped
  in the scheduler. Fundamentally ptrace needs acess to the saved
  register values of a task.

  There are bunch of semi-random ptrace related cleanups that were found
  while looking at these issues.

  One cleanup that deserves to be called out is from commit 57b6de08b5
  ("ptrace: Admit ptrace_stop can generate spuriuos SIGTRAPs"). This
  makes a change that is technically user space visible, in the handling
  of what happens to a tracee when a tracer dies unexpectedly. According
  to our testing and our understanding of userspace nothing cares that
  spurious SIGTRAPs can be generated in that case"

* tag 'ptrace_stop-cleanup-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state
  ptrace: Always take siglock in ptrace_resume
  ptrace: Don't change __state
  ptrace: Admit ptrace_stop can generate spuriuos SIGTRAPs
  ptrace: Document that wait_task_inactive can't fail
  ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
  signal: Use lockdep_assert_held instead of assert_spin_locked
  ptrace: Remove arch_ptrace_attach
  ptrace/xtensa: Replace PT_SINGLESTEP with TIF_SINGLESTEP
  ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP
  signal: Replace __group_send_sig_info with send_signal_locked
  signal: Rename send_signal send_signal_locked
2022-06-03 16:13:25 -07:00
Linus Torvalds
1ec6574a3c This set of changes updates init and user mode helper tasks to be
ordinary user mode tasks.
 
 In commit 40966e316f ("kthread: Ensure struct kthread is present for
 all kthreads") caused init and the user mode helper threads that call
 kernel_execve to have struct kthread allocated for them.  This struct
 kthread going away during execve in turned made a use after free of
 struct kthread possible.
 
 The commit 343f4c49f2 ("kthread: Don't allocate kthread_struct for
 init and umh") is enough to fix the use after free and is simple enough
 to be backportable.
 
 The rest of the changes pass struct kernel_clone_args to clean things
 up and cause the code to make sense.
 
 In making init and the user mode helpers tasks purely user mode tasks
 I ran into two complications.  The function task_tick_numa was
 detecting tasks without an mm by testing for the presence of
 PF_KTHREAD.  The initramfs code in populate_initrd_image was using
 flush_delayed_fput to ensuere the closing of all it's file descriptors
 was complete, and flush_delayed_fput does not work in a userspace thread.
 
 I have looked and looked and more complications and in my code review
 I have not found any, and neither has anyone else with the code sitting
 in linux-next.
 
 Link: https://lkml.kernel.org/r/87mtfu4up3.fsf@email.froward.int.ebiederm.org
 
 Eric W. Biederman (8):
       kthread: Don't allocate kthread_struct for init and umh
       fork: Pass struct kernel_clone_args into copy_thread
       fork: Explicity test for idle tasks in copy_thread
       fork: Generalize PF_IO_WORKER handling
       init: Deal with the init process being a user mode process
       fork: Explicitly set PF_KTHREAD
       fork: Stop allowing kthreads to call execve
       sched: Update task_tick_numa to ignore tasks without an mm
 
  arch/alpha/kernel/process.c      | 13 ++++++------
  arch/arc/kernel/process.c        | 13 ++++++------
  arch/arm/kernel/process.c        | 12 ++++++-----
  arch/arm64/kernel/process.c      | 12 ++++++-----
  arch/csky/kernel/process.c       | 15 ++++++-------
  arch/h8300/kernel/process.c      | 10 ++++-----
  arch/hexagon/kernel/process.c    | 12 ++++++-----
  arch/ia64/kernel/process.c       | 15 +++++++------
  arch/m68k/kernel/process.c       | 12 ++++++-----
  arch/microblaze/kernel/process.c | 12 ++++++-----
  arch/mips/kernel/process.c       | 13 ++++++------
  arch/nios2/kernel/process.c      | 12 ++++++-----
  arch/openrisc/kernel/process.c   | 12 ++++++-----
  arch/parisc/kernel/process.c     | 18 +++++++++-------
  arch/powerpc/kernel/process.c    | 15 +++++++------
  arch/riscv/kernel/process.c      | 12 ++++++-----
  arch/s390/kernel/process.c       | 12 ++++++-----
  arch/sh/kernel/process_32.c      | 12 ++++++-----
  arch/sparc/kernel/process_32.c   | 12 ++++++-----
  arch/sparc/kernel/process_64.c   | 12 ++++++-----
  arch/um/kernel/process.c         | 15 +++++++------
  arch/x86/include/asm/fpu/sched.h |  2 +-
  arch/x86/include/asm/switch_to.h |  8 +++----
  arch/x86/kernel/fpu/core.c       |  4 ++--
  arch/x86/kernel/process.c        | 18 +++++++++-------
  arch/xtensa/kernel/process.c     | 17 ++++++++-------
  fs/exec.c                        |  8 ++++---
  include/linux/sched/task.h       |  8 +++++--
  init/initramfs.c                 |  2 ++
  init/main.c                      |  2 +-
  kernel/fork.c                    | 46 +++++++++++++++++++++++++++++++++-------
  kernel/sched/fair.c              |  2 +-
  kernel/umh.c                     |  6 +++---
  33 files changed, 234 insertions(+), 160 deletions(-)
 
 Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEgjlraLDcwBA2B+6cC/v6Eiajj0AFAmKaR/MACgkQC/v6Eiaj
 j0Aayg/7Bx66872d9c6igkJ+MPCTuh+v9QKCGwiYEmiU4Q5sVAFB0HPJO27qC14u
 630X0RFNZTkPzNNEJNIW4kw6Dj8s8YRKf+FgQAVt4SzdRwT7eIPDjk1nGraopPJ3
 O04pjvuTmUyidyViRyFcf2ptx/pnkrwP8jUSc+bGTgfASAKAgAokqKE5ecjewbBc
 Y/EAkQ6QW7KxPjeSmpAHwI+t3BpBev9WEC4PbhRhsBCQFO2+PJiklvqdhVNBnIjv
 qUezll/1xv9UYgniB15Q4Nb722SmnWSU3r8as1eFPugzTHizKhufrrpyP+KMK1A0
 tdtEJNs5t2DZF7ZbGTFSPqJWmyTYLrghZdO+lOmnaSjHxK4Nda1d4NzbefJ0u+FE
 tutewowvHtBX6AFIbx+H3O+DOJM2IgNMf+ReQDU/TyNyVf3wBrTbsr9cLxypIJIp
 zze8npoLMlB7B4yxVo5ES5e63EXfi3iHl0L3/1EhoGwriRz1kWgVLUX/VZOUpscL
 RkJHsW6bT8sqxPWAA5kyWjEN+wNR2PxbXi8OE4arT0uJrEBMUgDCzydzOv5tJB00
 mSQdytxH9LVdsmxBKAOBp5X6WOLGA4yb1cZ6E/mEhlqXMpBDF1DaMfwbWqxSYi4q
 sp5zU3SBAW0qceiZSsWZXInfbjrcQXNV/DkDRDO9OmzEZP4m1j0=
 =x6fy
 -----END PGP SIGNATURE-----

Merge tag 'kthread-cleanups-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

Pull kthread updates from Eric Biederman:
 "This updates init and user mode helper tasks to be ordinary user mode
  tasks.

  Commit 40966e316f ("kthread: Ensure struct kthread is present for
  all kthreads") caused init and the user mode helper threads that call
  kernel_execve to have struct kthread allocated for them. This struct
  kthread going away during execve in turned made a use after free of
  struct kthread possible.

  Here, commit 343f4c49f2 ("kthread: Don't allocate kthread_struct for
  init and umh") is enough to fix the use after free and is simple
  enough to be backportable.

  The rest of the changes pass struct kernel_clone_args to clean things
  up and cause the code to make sense.

  In making init and the user mode helpers tasks purely user mode tasks
  I ran into two complications. The function task_tick_numa was
  detecting tasks without an mm by testing for the presence of
  PF_KTHREAD. The initramfs code in populate_initrd_image was using
  flush_delayed_fput to ensuere the closing of all it's file descriptors
  was complete, and flush_delayed_fput does not work in a userspace
  thread.

  I have looked and looked and more complications and in my code review
  I have not found any, and neither has anyone else with the code
  sitting in linux-next"

* tag 'kthread-cleanups-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  sched: Update task_tick_numa to ignore tasks without an mm
  fork: Stop allowing kthreads to call execve
  fork: Explicitly set PF_KTHREAD
  init: Deal with the init process being a user mode process
  fork: Generalize PF_IO_WORKER handling
  fork: Explicity test for idle tasks in copy_thread
  fork: Pass struct kernel_clone_args into copy_thread
  kthread: Don't allocate kthread_struct for init and umh
2022-06-03 16:03:05 -07:00
Linus Torvalds
4e583ff9df This pull request contains the following changes for UML:
- Various cleanups and fixes: xterm, serial line, time travel
 - Set ARCH_HAS_GCOV_PROFILE_ALL
 -----BEGIN PGP SIGNATURE-----
 
 iQJKBAABCAA0FiEEdgfidid8lnn52cLTZvlZhesYu8EFAmKZz4UWHHJpY2hhcmRA
 c2lnbWEtc3Rhci5hdAAKCRBm+VmF6xi7wRrZD/951tWxCjNiSZYL8B32YnaxqJLf
 vwDwXWxYbXmtLgVhqTGCQ61qNFhKnGVeyfO2niacB5EB3VFzxtB2dXTswDpcu/93
 o99/Dozisehcn9L3CbGO0sKCxKZbdgP4TQPOGQpr8lyzv9NlmNF/bgkiH8s8rIB/
 ACaiKmLrAVIyQz/8VElFqJNyB/RkmcILks//jVidFlueZhmYMSzbfdVDFyTDDJMA
 JEmIz+SG2hg15yCy620EpWgskHvSQSNhWMv4wxJVy4XRdZ7nztb9babV3lIaRmaI
 8rBR+DsLGlDeep3SOv63giFzjMjHpXcAlJ0UoefkaRA4htSP4GmyDPHX6Fo6ilW4
 fQ52lxsHmP+6fLmWNOnFjsvk93z9u3XU55ReEhP1PGzgAGDNUczy8BEYvb6l0Weq
 M8BdYgU2nh/SA0ycmXdSVbyl7nFST5s0lHr6hEt22CMxJ+jz6WS650vrnH2JimMX
 bnJMcEYX6PeyDq4lTYyrWOCdzPTorT6eEcn/BM3qKgWkosK0FlN+nnT0HOef5Bag
 jezo4/dt/VPfftKQS28Waufud/nnJD2oFAvFBG0/YHTooTZMkSnH2LnRbYkFo7vS
 xkDRnHJGSDOaxzdSfgNlwveqZ/qTgjNs1CUYHBrs2Tj1dJicqro+wWjZg8qzCHI+
 8YgCQjaEOYLN6CN0CA==
 =hD4o
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

Pull UML updates from Richard Weinberger:

 - Various cleanups and fixes: xterm, serial line, time travel

 - Set ARCH_HAS_GCOV_PROFILE_ALL

* tag 'for-linus-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: Fix out-of-bounds read in LDT setup
  um: chan_user: Fix winch_tramp() return value
  um: virtio_uml: Fix broken device handling in time-travel
  um: line: Use separate IRQs per line
  um: Enable ARCH_HAS_GCOV_PROFILE_ALL
  um: Use asm-generic/dma-mapping.h
  um: daemon: Make default socket configurable
  um: xterm: Make default terminal emulator configurable
2022-06-03 14:35:14 -07:00
Linus Torvalds
93ce7948e3 Follow-up tweaks for the EFI changes in v5.19
- fix new DXE service invocations for mixed mode
 - use correct Kconfig symbol when setting PE header flag
 - clean up the drivers/firmware/efi Kconfig dependencies so that
   features that depend on CONFIG_EFI are hidden from the UI when the
   symbol is not enabled.
 
 Also included is a RISC-V bugfix from Heinrich to avoid read-write
 mappings of read-only firmware regions in the EFI page tables.
 -----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEE+9lifEBpyUIVN1cpw08iOZLZjyQFAmKXk5YACgkQw08iOZLZ
 jyQQ0wv/cB9Z9kJur3wJqj75HFEly7bwSk5oxJ+txRytApSaRYnqm7l4WeP3QQ8c
 o9GzZZNwoRQSx1mCBJefaO4s8fA24QkIeD8Oy4MeucKaPX1UbNc6Z84srOynjpSj
 mOyIYB+kurxsCBKmzQQBy8txIWld4EkrMhEoc1h2L4d2+OVRvIlsu1PMv03eCiww
 4Sop0yO5CydEpjxJDCfwol0L/PBiXc2PfRs2FdHFwOSQaisQLxhNruCnovyS9Zwk
 zLkhYC5dS+OZctknl6XMzOAi3x7sNYzVwNf4+yhFeU2cTuj3kJWnEAqs3CU/tiPO
 DOobLg/r/j7H44Nsc/8aJGT4GPNrbUrb6aOcfrBAkxvsu1Sp/k/UfSMZLS9fU1gC
 XUUl46NXG1yFpCntruQm5SMytVKdtlyUu7pPa+Ijmr+vc6UWl1XJq26J3UpiiFYT
 mjrer5gvzrnhuvUjIb4ulKoNMdoOQQMtofLxUGuc1u/53jWHxbiKt7/QvyFepJVe
 zi/ikD/v
 =7wiT
 -----END PGP SIGNATURE-----

Merge tag 'efi-next-for-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi

Pull more EFI updates from Ard Biesheuvel:
 "Follow-up tweaks for EFI changes - they mostly address issues
  introduced this merge window, except for Heinrich's patch:

   - fix new DXE service invocations for mixed mode

   - use correct Kconfig symbol when setting PE header flag

   - clean up the drivers/firmware/efi Kconfig dependencies so that
     features that depend on CONFIG_EFI are hidden from the UI when the
     symbol is not enabled.

  Also included is a RISC-V bugfix from Heinrich to avoid read-write
  mappings of read-only firmware regions in the EFI page tables"

* tag 'efi-next-for-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  efi: clean up Kconfig dependencies on CONFIG_EFI
  efi/x86: libstub: Make DXE calls mixed mode safe
  efi: x86: Fix config name for setting the NX-compatibility flag in the PE header
  riscv: read-only pages should not be writable
2022-06-03 13:39:30 -07:00
Yury Norov
d603fd8dd3 KVM: x86: hyper-v: replace bitmap_weight() with hweight64()
kvm_hv_flush_tlb() applies bitmap API to a u64 variable valid_bank_mask.
Since valid_bank_mask has a fixed size, we can use hweight64() and avoid
excessive bloating.

CC: Borislav Petkov <bp@alien8.de>
CC: Dave Hansen <dave.hansen@linux.intel.com>
CC: H. Peter Anvin <hpa@zytor.com>
CC: Ingo Molnar <mingo@redhat.com>
CC: Jim Mattson <jmattson@google.com>
CC: Joerg Roedel <joro@8bytes.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Sean Christopherson <seanjc@google.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Vitaly Kuznetsov <vkuznets@redhat.com>
CC: Wanpeng Li <wanpengli@tencent.com>
CC: kvm@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: x86@kernel.org
Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
2022-06-03 06:52:58 -07:00
Yury Norov
a7ef9b455c KVM: x86: hyper-v: fix type of valid_bank_mask
In kvm_hv_flush_tlb(), valid_bank_mask is declared as unsigned long,
but is used as u64, which is wrong for i386, and has been spotted by
LKP after applying "KVM: x86: hyper-v: replace bitmap_weight() with
hweight64()"

https://lore.kernel.org/lkml/20220510154750.212913-12-yury.norov@gmail.com/

But it's wrong even without that patch because now bitmap_weight()
dereferences a word after valid_bank_mask on i386.

>> include/asm-generic/bitops/const_hweight.h:21:76: warning: right shift count >= width of type
+[-Wshift-count-overflow]
      21 | #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32))
         |                                                                            ^~
   include/asm-generic/bitops/const_hweight.h:10:16: note: in definition of macro '__const_hweight8'
      10 |          ((!!((w) & (1ULL << 0))) +     \
         |                ^
   include/asm-generic/bitops/const_hweight.h:20:31: note: in expansion of macro '__const_hweight16'
      20 | #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16))
         |                               ^~~~~~~~~~~~~~~~~
   include/asm-generic/bitops/const_hweight.h:21:54: note: in expansion of macro '__const_hweight32'
      21 | #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32))
         |                                                      ^~~~~~~~~~~~~~~~~
   include/asm-generic/bitops/const_hweight.h:29:49: note: in expansion of macro '__const_hweight64'
      29 | #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w))
         |                                                 ^~~~~~~~~~~~~~~~~
   arch/x86/kvm/hyperv.c:1983:36: note: in expansion of macro 'hweight64'
    1983 |                 if (hc->var_cnt != hweight64(valid_bank_mask))
         |                                    ^~~~~~~~~

CC: Borislav Petkov <bp@alien8.de>
CC: Dave Hansen <dave.hansen@linux.intel.com>
CC: H. Peter Anvin <hpa@zytor.com>
CC: Ingo Molnar <mingo@redhat.com>
CC: Jim Mattson <jmattson@google.com>
CC: Joerg Roedel <joro@8bytes.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Sean Christopherson <seanjc@google.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Vitaly Kuznetsov <vkuznets@redhat.com>
CC: Wanpeng Li <wanpengli@tencent.com>
CC: kvm@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: x86@kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Message-Id: <20220519171504.1238724-1-yury.norov@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-06-03 06:52:58 -07:00
Yury Norov
dcf23cca93 arch/x86: replace nodes_weight with nodes_empty where appropriate
mm code calls nodes_weight() to check if any bit of a given nodemask is
set. We can do it more efficiently with nodes_empty() because nodes_empty()
stops traversing the nodemask as soon as it finds first set bit, while
nodes_weight() counts all bits unconditionally.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
2022-06-03 06:52:57 -07:00
Yury Norov
4aec74bccf arch/x86: replace cpumask_weight with cpumask_empty where appropriate
In some cases, arch/x86 code calls cpumask_weight() to check if any bit of
a given cpumask is set. We can do it more efficiently with cpumask_empty()
because cpumask_empty() stops traversing the cpumask as soon as it finds
first set bit, while cpumask_weight() counts all bits unconditionally.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
2022-06-03 06:52:57 -07:00
Kristen Carlson Accardi
0c9782e204 x86/sgx: Set active memcg prior to shmem allocation
When the system runs out of enclave memory, SGX can reclaim EPC pages
by swapping to normal RAM. These backing pages are allocated via a
per-enclave shared memory area. Since SGX allows unlimited over
commit on EPC memory, the reclaimer thread can allocate a large
number of backing RAM pages in response to EPC memory pressure.

When the shared memory backing RAM allocation occurs during
the reclaimer thread context, the shared memory is charged to
the root memory control group, and the shmem usage of the enclave
is not properly accounted for, making cgroups ineffective at
limiting the amount of RAM an enclave can consume.

For example, when using a cgroup to launch a set of test
enclaves, the kernel does not properly account for 50% - 75% of
shmem page allocations on average. In the worst case, when
nearly all allocations occur during the reclaimer thread, the
kernel accounts less than a percent of the amount of shmem used
by the enclave's cgroup to the correct cgroup.

SGX stores a list of mm_structs that are associated with
an enclave. Pick one of them during reclaim and charge that
mm's memcg with the shmem allocation. The one that gets picked
is arbitrary, but this list almost always only has one mm. The
cases where there is more than one mm with different memcg's
are not worth considering.

Create a new function - sgx_encl_alloc_backing(). This function
is used whenever a new backing storage page needs to be
allocated. Previously the same function was used for page
allocation as well as retrieving a previously allocated page.
Prior to backing page allocation, if there is a mm_struct associated
with the enclave that is requesting the allocation, it is set
as the active memory control group.

[ dhansen: - fix merge conflict with ELDU fixes
           - check against actual ksgxd_tsk, not ->mm ]

Cc: stable@vger.kernel.org
Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Link: https://lkml.kernel.org/r/20220520174248.4918-1-kristen@linux.intel.com
2022-06-02 10:58:47 -07:00
Linus Torvalds
7c9e960c63 Livepatching changes for 5.19
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEESH4wyp42V4tXvYsjUqAMR0iAlPIFAmKYlREACgkQUqAMR0iA
 lPLHUQ/9EdD1kQsxuvZRTBAr79WmAI9vS41R3owXRUhmpFf0pSjIkD23gRni1Y+a
 f2NVxQY8y9mLUEp/YXeDUX5lqdCDD2iJtin+ZlUGv8+F7rRlMyIEDoudSUKsTRlF
 ufkzKE00tqUkz7J/U1KEbD2u/nWFS5q8DyHc81pC0bHpkiBT8y+wgEtIQy1oGVqV
 OilcHPXpQUV/sw1RsaRGdwJAgJSJcoHk57JelWWlV5fo0ogK1gjIl/kUadAChNzT
 2o8zoWu6fQlqCAI1AJkKLngdcybbXPwWKclcGUze1sfR9+fGGRzqorwAupm5bmkp
 1oZsODqxDdVfxz2/VMtdjjacm3ECJmznqBumdMrdM3WVjh944xkb7xVOp/1xJWfc
 wrmQy4dshXa4OTnvAivBYlgbaUzld5HPQD/v89KBLP3SJkd6p9PVT+qa87hjJ2uH
 sRDjtZxTkcKKoYU8CnASFBkaOHYHOWbRHbEjCkIgo2nHXE4W3fOnaQKBF3jUiZJr
 OimQMWjAqtXh8Gb0B7IIPxuGFjAjKepTEdN+Jwk8/eqXNTFqgGPbu1hOf+zpq/oj
 ekMIy3CUIsempqZfdrJlMOAGIEsx5JGBrdC5KwAEsHymW1XNJVrkpLtTFrtsF1tW
 X6qWzhkNMkOv9/0yoR2GmXiBR10pcXGMsd+EvNewpTIDCcjkYxI=
 =X4cs
 -----END PGP SIGNATURE-----

Merge tag 'livepatching-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching

Pull livepatching cleanup from Petr Mladek:

 - Remove duplicated livepatch code [Christophe]

* tag 'livepatching-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching:
  livepatch: Remove klp_arch_set_pc() and asm/livepatch.h
2022-06-02 08:55:01 -07:00
Baoquan He
b3e34a47f9 x86/kexec: fix memory leak of elf header buffer
This is reported by kmemleak detector:

unreferenced object 0xffffc900002a9000 (size 4096):
  comm "kexec", pid 14950, jiffies 4295110793 (age 373.951s)
  hex dump (first 32 bytes):
    7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00  .ELF............
    04 00 3e 00 01 00 00 00 00 00 00 00 00 00 00 00  ..>.............
  backtrace:
    [<0000000016a8ef9f>] __vmalloc_node_range+0x101/0x170
    [<000000002b66b6c0>] __vmalloc_node+0xb4/0x160
    [<00000000ad40107d>] crash_prepare_elf64_headers+0x8e/0xcd0
    [<0000000019afff23>] crash_load_segments+0x260/0x470
    [<0000000019ebe95c>] bzImage64_load+0x814/0xad0
    [<0000000093e16b05>] arch_kexec_kernel_image_load+0x1be/0x2a0
    [<000000009ef2fc88>] kimage_file_alloc_init+0x2ec/0x5a0
    [<0000000038f5a97a>] __do_sys_kexec_file_load+0x28d/0x530
    [<0000000087c19992>] do_syscall_64+0x3b/0x90
    [<0000000066e063a4>] entry_SYSCALL_64_after_hwframe+0x44/0xae

In crash_prepare_elf64_headers(), a buffer is allocated via vmalloc() to
store elf headers.  While it's not freed back to system correctly when
kdump kernel is reloaded or unloaded.  Then memory leak is caused.  Fix it
by introducing x86 specific function arch_kimage_file_post_load_cleanup(),
and freeing the buffer there.

And also remove the incorrect elf header buffer freeing code.  Before
calling arch specific kexec_file loading function, the image instance has
been initialized.  So 'image->elf_headers' must be NULL.  It doesn't make
sense to free the elf header buffer in the place.

Three different people have reported three bugs about the memory leak on
x86_64 inside Redhat.

Link: https://lkml.kernel.org/r/20220223113225.63106-2-bhe@redhat.com
Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-06-01 15:57:16 -07:00
Ard Biesheuvel
31f1a0edff efi/x86: libstub: Make DXE calls mixed mode safe
The newly added DXE calls use 64-bit quantities, which means we need to
marshall them explicitly when running in mixed mode. Currently, we get
away without it because we just bail when GetMemorySpaceDescriptor()
fails, which is guaranteed to happen due to the function argument mixup.

Let's fix this properly, though, by defining the macros that describe
how to marshall the arguments. While at it, drop an incorrect cast on a
status variable.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2022-06-01 14:08:12 +02:00
Lukas Bulwahn
ca209f8b5f efi: x86: Fix config name for setting the NX-compatibility flag in the PE header
Commit 21b68da7bf4a ("efi: x86: Set the NX-compatibility flag in the PE
header") intends to set the compatibility flag, i.e.,
IMAGE_DLL_CHARACTERISTICS_NX_COMPAT, but this ifdef is actually dead as
the CONFIG_DXE_MEM_ATTRIBUTES Kconfig option does not exist.

The config is actually called EFI_DXE_MEM_ATTRIBUTES. Adjust the ifdef
to use the intended config name.

The issue was identified with ./scripts/checkkconfigsymbols.py.

Fixes: 21b68da7bf4a ("efi: x86: Set the NX-compatibility flag in the PE header")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20220601115043.7678-1-lukas.bulwahn@gmail.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2022-06-01 14:07:48 +02:00
Juergen Gross
41925b105e xen: replace xen_remap() with memremap()
xen_remap() is used to establish mappings for frames not under direct
control of the kernel: for Xenstore and console ring pages, and for
grant pages of non-PV guests.

Today xen_remap() is defined to use ioremap() on x86 (doing uncached
mappings), and ioremap_cache() on Arm (doing cached mappings).

Uncached mappings for those use cases are bad for performance, so they
should be avoided if possible. As all use cases of xen_remap() don't
require uncached mappings (the mapped area is always physical RAM),
a mapping using the standard WB cache mode is fine.

As sparse is flagging some of the xen_remap() use cases to be not
appropriate for iomem(), as the result is not annotated with the
__iomem modifier, eliminate xen_remap() completely and replace all
use cases with memremap() specifying the MEMREMAP_WB caching mode.

xen_unmap() can be replaced with memunmap().

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Link: https://lore.kernel.org/r/20220530082634.6339-1-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
2022-06-01 07:24:17 +02:00
Linus Torvalds
35b51afd23 RISC-V Patches for the 5.19 Merge Window, Part 1
* Support for the Svpbmt extension, which allows memory attributes to be
   encoded in pages.
 * Support for the Allwinner D1's implementation of page-based memory
   attributes.
 * Support for running rv32 binaries on rv64 systems, via the compat
   subsystem.
 * Support for kexec_file().
 * Support for the new generic ticket-based spinlocks, which allows us to
   also move to qrwlock.  These should have already gone in through the
   asm-geneic tree as well.
 * A handful of cleanups and fixes, include some larger ones around
   atomics and XIP.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmKWOx8THHBhbG1lckBk
 YWJiZWx0LmNvbQAKCRAuExnzX7sYieAiEADAUdP7ctoaSQwk5skd/fdA3b4KJuKn
 1Zjl+Br32WP0DlbirYBYWRUQZnCCsvABbTiwSJMcG7NBpU5pyQ5XDtB3OA5kJswO
 Fdp8Nd53//+GK1M5zdEM9OdgvT9fbfTZ3qTu8bKsROOQhGwnYL+Csc9KjFRqEmzN
 oQii0jlb3n5PM4FL3GsbV4uMn9zzkP9mnVAPQktcock2EKFEK/Fy3uNYMQiO2KPi
 n8O6bIDaeRdQ6SurzWOuOkt0cro0tEF85ilzT04mynQsOU0el5oGqCxnOhNH3VWg
 ndqPT6Yafw12hZOtbKJeP+nF8IIR6aJLP3jOtRwEVgcfbXYAw4QwbAV8kQZISefN
 ipn8JGY7GX9Y9TYU692OUGkcmAb3/dxb6c0WihBdvJ0M6YyLD5X+YKHNuG2onLgK
 ss43C5Mxsu629rsjdu/PV91B1+pve3rG9siVmF+g4eo0x9rjMq6/JB0Kal/8SLI1
 Je5T55d5ujV1a2XxhZLQOSD5owrK7J1M9owb0bloTnr9nVwFTWDrfEQEU82o3kP+
 Xm+FfXktnz9ai55NjkMbbEur5D++dKJhBavwCTnBcTrJmMtEH0R45GTK9ZehP+WC
 rNVrRXjIsS18wsTfJxnkZeFQA38as6VBKTzvwHvOgzTrrZU1/xk3lpkouYtAO6BG
 gKacHshVilmUuA==
 =Loi6
 -----END PGP SIGNATURE-----

Merge tag 'riscv-for-linus-5.19-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Palmer Dabbelt:

 - Support for the Svpbmt extension, which allows memory attributes to
   be encoded in pages

 - Support for the Allwinner D1's implementation of page-based memory
   attributes

 - Support for running rv32 binaries on rv64 systems, via the compat
   subsystem

 - Support for kexec_file()

 - Support for the new generic ticket-based spinlocks, which allows us
   to also move to qrwlock. These should have already gone in through
   the asm-geneic tree as well

 - A handful of cleanups and fixes, include some larger ones around
   atomics and XIP

* tag 'riscv-for-linus-5.19-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (51 commits)
  RISC-V: Prepare dropping week attribute from arch_kexec_apply_relocations[_add]
  riscv: compat: Using seperated vdso_maps for compat_vdso_info
  RISC-V: Fix the XIP build
  RISC-V: Split out the XIP fixups into their own file
  RISC-V: ignore xipImage
  RISC-V: Avoid empty create_*_mapping definitions
  riscv: Don't output a bogus mmu-type on a no MMU kernel
  riscv: atomic: Add custom conditional atomic operation implementation
  riscv: atomic: Optimize dec_if_positive functions
  riscv: atomic: Cleanup unnecessary definition
  RISC-V: Load purgatory in kexec_file
  RISC-V: Add purgatory
  RISC-V: Support for kexec_file on panic
  RISC-V: Add kexec_file support
  RISC-V: use memcpy for kexec_file mode
  kexec_file: Fix kexec_file.c build error for riscv platform
  riscv: compat: Add COMPAT Kbuild skeletal support
  riscv: compat: ptrace: Add compat_arch_ptrace implement
  riscv: compat: signal: Add rt_frame implementation
  riscv: add memory-type errata for T-Head
  ...
2022-05-31 14:10:54 -07:00
Borislav Petkov
0c0fe08c76 x86/microcode: Remove unnecessary perf callback
c93dc84cbe ("perf/x86: Add a microcode revision check for SNB-PEBS")
checks whether the microcode revision has fixed PEBS issues.

This can happen either:

1. At PEBS init time, where the early microcode has been loaded already

2. During late loading, in the microcode_check() callback.

So remove the unnecessary call in the microcode loader init routine.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20220525161232.14924-5-bp@alien8.de
2022-05-31 09:31:19 +02:00
Borislav Petkov
d23d33ea0f x86/microcode: Taint and warn on late loading
Warn before it is attempted and taint the kernel. Late loading microcode
can lead to malfunction of the kernel when the microcode update changes
behaviour. There is no way for the kernel to determine whether its safe or
not.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20220525161232.14924-4-bp@alien8.de
2022-05-31 09:31:19 +02:00
Borislav Petkov
a77a94f862 x86/microcode: Default-disable late loading
It is dangerous and it should not be used anyway - there's a nice early
loading already.

Requested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20220525161232.14924-3-bp@alien8.de
2022-05-31 09:31:19 +02:00
Borislav Petkov
181b6f40e9 x86/microcode: Rip out the OLD_INTERFACE
Everything should be using the early initrd loading by now.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20220525161232.14924-2-bp@alien8.de
2022-05-31 09:31:19 +02:00
Linus Torvalds
1ff7bc3ba7 More power management updates for 5.19-rc1
- Add Tegra234 cpufreq support (Sumit Gupta).
 
  - Clean up and enhance the Mediatek cpufreq driver (Wan Jiabing,
    Rex-BC Chen, and Jia-Wei Chang).
 
  - Fix up the CPPC cpufreq driver after recent changes (Zheng Bin,
    Pierre Gondois).
 
  - Minor update to dt-binding for Qcom's opp-v2-kryo-cpu (Yassine
    Oudjana).
 
  - Use list iterator only inside the list_for_each_entry loop (Xiaomeng
    Tong, and Jakob Koschel).
 
  - New APIs related to finding OPP based on interconnect bandwidth
    (Krzysztof Kozlowski).
 
  - Fix the missing of_node_put() in _bandwidth_supported() (Dan
    Carpenter).
 
  - Cleanups (Krzysztof Kozlowski, and Viresh Kumar).
 
  - Add Out of Band mode description to the intel-speed-select utility
    documentation (Srinivas Pandruvada).
 
  - Add power sequences support to the system reboot and power off
    code and make related platform-specific changes for multiple
    platforms (Dmitry Osipenko, Geert Uytterhoeven).
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmKU8lESHHJqd0Byand5
 c29ja2kubmV0AAoJEILEb/54YlRxVz0P91LNCbkDSt60jzNkXdEjsvUnI/YjJ+QJ
 /+ta7iCwf90obb6s9soBkTyU8Ia7hJ/IWDJW/5xhdG0ySYF17hGNIGKK9xKGsJFK
 tzzWtjFsvT3PeUZQERekqWp8OYskHYmQMj8o4jqqFF7DZD/AswTgkVLALUd7YhVL
 UvLmcKsUA7eXy3ZrhtrGSzVSEbKOGXBLFyjy3IuWjfz6Uk/nGQRNKGf7byRWLM44
 y7zb75/5+p4MPyyJP8M/uiXzEYDKuubRtfx9PdmLgBUSMbtho6eB1x47dZWooaxe
 YKmcFjF80AmnwxHb+Te2rZHPeIYr+5hLBaEq7xaLQf/nAS3y5z1PIfI2wVQ5mXPz
 D599jHHda/6oSAKCVTq2fKfnlR6fetm5j66xOQINpD+G5b5tNSpllXJDamFZxFgP
 DiQAOFzdnRYnK7yTiLWVl1q76SVRxqsGz7/5Ak+NRj2OQK2wRkLzHuZfiV/8r0pk
 ksi6Ew9TerXkstoTQsSToPQxB2VvosSajNU3Oy27pmM0oal1XxP0LIPz9sMor5/g
 tfk5f6Yz/+FFIfXj3cZffZNdhsJgejmcqPdrSdCOV3sBrblnIMQNpHiYg4jGztoj
 IjYKYPVpSaWiSZLQOaK2moTEvm9CfQz1TQCF+/Kz88LX6/7ZaDJFxHG2FDEob0sg
 6KVbrZWweLI=
 =PAh+
 -----END PGP SIGNATURE-----

Merge tag 'pm-5.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management updates from Rafael Wysocki:
 "These update the ARM cpufreq drivers and fix up the CPPC cpufreq
  driver after recent changes, update the OPP code and PM documentation
  and add power sequences support to the system reboot and power off
  code.

  Specifics:

   - Add Tegra234 cpufreq support (Sumit Gupta)

   - Clean up and enhance the Mediatek cpufreq driver (Wan Jiabing,
     Rex-BC Chen, and Jia-Wei Chang)

   - Fix up the CPPC cpufreq driver after recent changes (Zheng Bin,
     Pierre Gondois)

   - Minor update to dt-binding for Qcom's opp-v2-kryo-cpu (Yassine
     Oudjana)

   - Use list iterator only inside the list_for_each_entry loop
     (Xiaomeng Tong, and Jakob Koschel)

   - New APIs related to finding OPP based on interconnect bandwidth
     (Krzysztof Kozlowski)

   - Fix the missing of_node_put() in _bandwidth_supported() (Dan
     Carpenter)

   - Cleanups (Krzysztof Kozlowski, and Viresh Kumar)

   - Add Out of Band mode description to the intel-speed-select utility
     documentation (Srinivas Pandruvada)

   - Add power sequences support to the system reboot and power off code
     and make related platform-specific changes for multiple platforms
     (Dmitry Osipenko, Geert Uytterhoeven)"

* tag 'pm-5.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (60 commits)
  cpufreq: CPPC: Fix unused-function warning
  cpufreq: CPPC: Fix build error without CONFIG_ACPI_CPPC_CPUFREQ_FIE
  Documentation: admin-guide: PM: Add Out of Band mode
  kernel/reboot: Change registration order of legacy power-off handler
  m68k: virt: Switch to new sys-off handler API
  kernel/reboot: Add devm_register_restart_handler()
  kernel/reboot: Add devm_register_power_off_handler()
  soc/tegra: pmc: Use sys-off handler API to power off Nexus 7 properly
  reboot: Remove pm_power_off_prepare()
  regulator: pfuze100: Use devm_register_sys_off_handler()
  ACPI: power: Switch to sys-off handler API
  memory: emif: Use kernel_can_power_off()
  mips: Use do_kernel_power_off()
  ia64: Use do_kernel_power_off()
  x86: Use do_kernel_power_off()
  sh: Use do_kernel_power_off()
  m68k: Switch to new sys-off handler API
  powerpc: Use do_kernel_power_off()
  xen/x86: Use do_kernel_power_off()
  parisc: Use do_kernel_power_off()
  ...
2022-05-30 11:37:26 -07:00
Linus Torvalds
76bfd3de34 tracing updates for 5.19:
- The majority of the changes are for fixes and clean ups.
 
 Noticeable changes:
 
 - Rework trace event triggers code to be easier to interact with.
 
 - Support for embedding bootconfig with the kernel (as suppose to having it
   embedded in initram). This is useful for embedded boards without initram
   disks.
 
 - Speed up boot by parallelizing the creation of tracefs files.
 
 - Allow absolute ring buffer timestamps handle timestamps that use more than
   59 bits.
 
 - Added new tracing clock "TAI" (International Atomic Time)
 
 - Have weak functions show up in available_filter_function list as:
    __ftrace_invalid_address___<invalid-offset>
   instead of using the name of the function before it.
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCYpOgXRQccm9zdGVkdEBn
 b29kbWlzLm9yZwAKCRAp5XQQmuv6qjkKAQDbpemxvpFyJlZqT8KgEIXubu+ag2/q
 p0XDHaPS0zF9OQEAjTxg6GMEbnFYl6fzxZtOoEbiaQ7ppfdhRI8t6sSMVA8=
 =+nDD
 -----END PGP SIGNATURE-----

Merge tag 'trace-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:
 "The majority of the changes are for fixes and clean ups.

  Notable changes:

   - Rework trace event triggers code to be easier to interact with.

   - Support for embedding bootconfig with the kernel (as suppose to
     having it embedded in initram). This is useful for embedded boards
     without initram disks.

   - Speed up boot by parallelizing the creation of tracefs files.

   - Allow absolute ring buffer timestamps handle timestamps that use
     more than 59 bits.

   - Added new tracing clock "TAI" (International Atomic Time)

   - Have weak functions show up in available_filter_function list as:
     __ftrace_invalid_address___<invalid-offset> instead of using the
     name of the function before it"

* tag 'trace-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (52 commits)
  ftrace: Add FTRACE_MCOUNT_MAX_OFFSET to avoid adding weak function
  tracing: Fix comments for event_trigger_separate_filter()
  x86/traceponit: Fix comment about irq vector tracepoints
  x86,tracing: Remove unused headers
  ftrace: Clean up hash direct_functions on register failures
  tracing: Fix comments of create_filter()
  tracing: Disable kcov on trace_preemptirq.c
  tracing: Initialize integer variable to prevent garbage return value
  ftrace: Fix typo in comment
  ftrace: Remove return value of ftrace_arch_modify_*()
  tracing: Cleanup code by removing init "char *name"
  tracing: Change "char *" string form to "char []"
  tracing/timerlat: Do not wakeup the thread if the trace stops at the IRQ
  tracing/timerlat: Print stacktrace in the IRQ handler if needed
  tracing/timerlat: Notify IRQ new max latency only if stop tracing is set
  kprobes: Fix build errors with CONFIG_KRETPROBES=n
  tracing: Fix return value of trace_pid_write()
  tracing: Fix potential double free in create_var_ref()
  tracing: Use strim() to remove whitespace instead of doing it manually
  ftrace: Deal with error return code of the ftrace_process_locs() function
  ...
2022-05-29 10:31:36 -07:00
Linus Torvalds
f56dbdda43 hyperv-next for 5.19
-----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCAAxFiEEIbPD0id6easf0xsudhRwX5BBoF4FAmKSSbcTHHdlaS5saXVA
 a2VybmVsLm9yZwAKCRB2FHBfkEGgXgJyCACeyMOcFws5lyqqdk0R0zGr2KFfKsJn
 YQR9nvldT2p/1y0ykvU208UIq0HHmXOb9pD8gOUzGYGp4XlEaC1f4V37mmzgLcRu
 vL/HcFqBl2cQEfaQxiXZrmsIIVszwbc57EGqpl93cS2er4hp/NXmredKCId7Mpt8
 FjxjgVGzdhEUKbJZYjkDM5pYAnJ9QVwuK3MaarKMK86Oj1P5YtKgIb4ZSt/NHvsC
 Mukx3nivSH29XfK3fRsFDJUQr9WNYh1cmTtyhB0tWVXQCYFc4angZRtCJwyXzkp2
 P5GBIQoMZcXX2XWkUBTtA1w5g/aZZsBExb3YGhQjsQP+jb6MtDnvOEo9
 =Z2E+
 -----END PGP SIGNATURE-----

Merge tag 'hyperv-next-signed-20220528' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv updates from Wei Liu:

 - Harden hv_sock driver (Andrea Parri)

 - Harden Hyper-V PCI driver (Andrea Parri)

 - Fix multi-MSI for Hyper-V PCI driver (Jeffrey Hugo)

 - Fix Hyper-V PCI to reduce boot time (Dexuan Cui)

 - Remove code for long EOL'ed Hyper-V versions (Michael Kelley, Saurabh
   Sengar)

 - Fix balloon driver error handling (Shradha Gupta)

 - Fix a typo in vmbus driver (Julia Lawall)

 - Ignore vmbus IMC device (Michael Kelley)

 - Add a new error message to Hyper-V DRM driver (Saurabh Sengar)

* tag 'hyperv-next-signed-20220528' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (28 commits)
  hv_balloon: Fix balloon_probe() and balloon_remove() error handling
  scsi: storvsc: Removing Pre Win8 related logic
  Drivers: hv: vmbus: fix typo in comment
  PCI: hv: Fix synchronization between channel callback and hv_pci_bus_exit()
  PCI: hv: Add validation for untrusted Hyper-V values
  PCI: hv: Fix interrupt mapping for multi-MSI
  PCI: hv: Reuse existing IRTE allocation in compose_msi_msg()
  drm/hyperv: Remove support for Hyper-V 2008 and 2008R2/Win7
  video: hyperv_fb: Remove support for Hyper-V 2008 and 2008R2/Win7
  scsi: storvsc: Remove support for Hyper-V 2008 and 2008R2/Win7
  Drivers: hv: vmbus: Remove support for Hyper-V 2008 and Hyper-V 2008R2/Win7
  x86/hyperv: Disable hardlockup detector by default in Hyper-V guests
  drm/hyperv: Add error message for fb size greater than allocated
  PCI: hv: Do not set PCI_COMMAND_MEMORY to reduce VM boot time
  PCI: hv: Fix hv_arch_irq_unmask() for multi-MSI
  Drivers: hv: vmbus: Refactor the ring-buffer iterator functions
  Drivers: hv: vmbus: Accept hv_sock offers in isolated guests
  hv_sock: Add validation for untrusted Hyper-V values
  hv_sock: Copy packets sent by Hyper-V out of the ring buffer
  hv_sock: Check hv_pkt_iter_first_raw()'s return value
  ...
2022-05-28 11:39:01 -07:00
Steven Rostedt (Google)
b39181f7c6 ftrace: Add FTRACE_MCOUNT_MAX_OFFSET to avoid adding weak function
If an unused weak function was traced, it's call to fentry will still
exist, which gets added into the __mcount_loc table. Ftrace will use
kallsyms to retrieve the name for each location in __mcount_loc to display
it in the available_filter_functions and used to enable functions via the
name matching in set_ftrace_filter/notrace. Enabling these functions do
nothing but enable an unused call to ftrace_caller. If a traced weak
function is overridden, the symbol of the function would be used for it,
which will either created duplicate names, or if the previous function was
not traced, it would be incorrectly be listed in available_filter_functions
as a function that can be traced.

This became an issue with BPF[1] as there are tooling that enables the
direct callers via ftrace but then checks to see if the functions were
actually enabled. The case of one function that was marked notrace, but
was followed by an unused weak function that was traced. The unused
function's call to fentry was added to the __mcount_loc section, and
kallsyms retrieved the untraced function's symbol as the weak function was
overridden. Since the untraced function would not get traced, the BPF
check would detect this and fail.

The real fix would be to fix kallsyms to not show addresses of weak
functions as the function before it. But that would require adding code in
the build to add function size to kallsyms so that it can know when the
function ends instead of just using the start of the next known symbol.

In the mean time, this is a work around. Add a FTRACE_MCOUNT_MAX_OFFSET
macro that if defined, ftrace will ignore any function that has its call
to fentry/mcount that has an offset from the symbol that is greater than
FTRACE_MCOUNT_MAX_OFFSET.

If CONFIG_HAVE_FENTRY is defined for x86, define FTRACE_MCOUNT_MAX_OFFSET
to zero (unless IBT is enabled), which will have ftrace ignore all locations
that are not at the start of the function (or one after the ENDBR
instruction).

A worker thread is added at boot up to scan all the ftrace record entries,
and will mark any that fail the FTRACE_MCOUNT_MAX_OFFSET test as disabled.
They will still appear in the available_filter_functions file as:

  __ftrace_invalid_address___<invalid-offset>

(showing the offset that caused it to be invalid).

This is required for tools that use libtracefs (like trace-cmd does) that
scan the available_filter_functions and enable set_ftrace_filter and
set_ftrace_notrace using indexes of the function listed in the file (this
is a speedup, as enabling thousands of files via names is an O(n^2)
operation and can take minutes to complete, where the indexing takes less
than a second).

The invalid functions cannot be removed from available_filter_functions as
the names there correspond to the ftrace records in the array that manages
them (and the indexing depends on this).

[1] https://lore.kernel.org/all/20220412094923.0abe90955e5db486b7bca279@kernel.org/

Link: https://lkml.kernel.org/r/20220526141912.794c2786@gandalf.local.home

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-05-28 09:31:19 -04:00
Linus Torvalds
d075c0c1be This update includes the following changes:
API:
 
 - Test in-place en/decryption with two sglists in testmgr.
 - Fix process vs. softirq race in cryptd.
 
 Algorithms:
 
 - Add arm64 acceleration for sm4.
 - Add s390 acceleration for chacha20.
 
 Drivers:
 
 - Add polarfire soc hwrng support in mpsf.
 - Add support for TI SoC AM62x in sa2ul.
 - Add support for ATSHA204 cryptochip in atmel-sha204a.
 - Add support for PRNG in caam.
 - Restore support for storage encryption in qat.
 - Restore support for storage encryption in hisilicon/sec.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEn51F/lCuNhUwmDeSxycdCkmxi6cFAmKQs9cACgkQxycdCkmx
 i6deOA//bwX9JvxI+SiwEK/1u5GX9VHtCpAa1rMOqhfl8UrBfo0516M/CeUDjW0J
 t1yoq0JUoIfYrEbSJqxXTnfG6+fJ1WsQtT3jd1/64nrwVk+w6OdMBTt48B9GF0R5
 ZjWG7zmjKZcspZqSwib/gxbehJ+IX7dYdUsrlUQq3q64qpQEqxTgqsfyiY3LP24N
 lng6weLudrFA5Xa8pVCmrCnOH3J7kPGA4iGqTGNV8Qx3ud9CUWSc8BT4VdqU8t2f
 opaYL3s9oKc+xtS4yrOnfV+Wa/A8K6AuBYeODFtLe41FSpGYgaPslcGqEGwAHNpL
 0HjqQdC+4auimGJxyVcef7QVMCpGqIfKqYu7sYXuNROylPjqMNa/DRL64csaDxDn
 WiheV9RSc1zfchxHC4IjnfwE7nNDVYnYrZ1awyvQ9xvAoh7bldiEe6k/UlWi3L0F
 nejJRFPXOSZ2GfJjrVNsv5lSWZCNWRBzOehN4D6EMJjEfM/G3/30Q0qwif39QWVj
 r1gYQWmZuCa9mL7enga1XavebQ6cLXggR4sTxEmV7Sta6AJ+RqNqOnrPecEF5Avr
 eSYQLxor+jvhaepcKhyDOF4dKGGJIWaEi00GC83yZ8hApVbfWoVh8Nfxmp8TUEzH
 UUJFvrFLNTBOwRoz3fIT57vaFxksQREZwlcQ77xVAeg8S+BOB4o=
 =oVRe
 -----END PGP SIGNATURE-----

Merge tag 'v5.19-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto updates from Herbert Xu:
 "API:

   - Test in-place en/decryption with two sglists in testmgr

   - Fix process vs softirq race in cryptd

  Algorithms:

   - Add arm64 acceleration for sm4

   - Add s390 acceleration for chacha20

  Drivers:

   - Add polarfire soc hwrng support in mpsf

   - Add support for TI SoC AM62x in sa2ul

   - Add support for ATSHA204 cryptochip in atmel-sha204a

   - Add support for PRNG in caam

   - Restore support for storage encryption in qat

   - Restore support for storage encryption in hisilicon/sec"

* tag 'v5.19-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (116 commits)
  hwrng: omap3-rom - fix using wrong clk_disable() in omap_rom_rng_runtime_resume()
  crypto: hisilicon/sec - delete the flag CRYPTO_ALG_ALLOCATES_MEMORY
  crypto: qat - add support for 401xx devices
  crypto: qat - re-enable registration of algorithms
  crypto: qat - honor CRYPTO_TFM_REQ_MAY_SLEEP flag
  crypto: qat - add param check for DH
  crypto: qat - add param check for RSA
  crypto: qat - remove dma_free_coherent() for DH
  crypto: qat - remove dma_free_coherent() for RSA
  crypto: qat - fix memory leak in RSA
  crypto: qat - add backlog mechanism
  crypto: qat - refactor submission logic
  crypto: qat - use pre-allocated buffers in datapath
  crypto: qat - set to zero DH parameters before free
  crypto: s390 - add crypto library interface for ChaCha20
  crypto: talitos - Uniform coding style with defined variable
  crypto: octeontx2 - simplify the return expression of otx2_cpt_aead_cbc_aes_sha_setkey()
  crypto: cryptd - Protect per-CPU resource by disabling BH.
  crypto: sun8i-ce - do not fallback if cryptlen is less than sg length
  crypto: sun8i-ce - rework debugging
  ...
2022-05-27 18:06:49 -07:00
Linus Torvalds
35cdd8656e libnvdimm for 5.19
- Add support for clearing memory error via pwrite(2) on DAX
 
 - Fix 'security overwrite' support in the presence of media errors
 
 - Miscellaneous cleanups and fixes for nfit_test (nvdimm unit tests)
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQSbo+XnGs+rwLz9XGXfioYZHlFsZwUCYpFPcQAKCRDfioYZHlFs
 Z9A3AQCdfoT5sY3OK+I/3oTvJ//6lw2MtXrnXFM046ICKPi9sgD8CzR9mRAHA+vj
 kxOtJEU2bA9naninXGORsDUndiNkwQo=
 =gVIn
 -----END PGP SIGNATURE-----

Merge tag 'libnvdimm-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm and DAX updates from Dan Williams:
 "New support for clearing memory errors when a file is in DAX mode,
  alongside with some other fixes and cleanups.

  Previously it was only possible to clear these errors using a truncate
  or hole-punch operation to trigger the filesystem to reallocate the
  block, now, any page aligned write can opportunistically clear errors
  as well.

  This change spans x86/mm, nvdimm, and fs/dax, and has received the
  appropriate sign-offs. Thanks to Jane for her work on this.

  Summary:

   - Add support for clearing memory error via pwrite(2) on DAX

   - Fix 'security overwrite' support in the presence of media errors

   - Miscellaneous cleanups and fixes for nfit_test (nvdimm unit tests)"

* tag 'libnvdimm-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  pmem: implement pmem_recovery_write()
  pmem: refactor pmem_clear_poison()
  dax: add .recovery_write dax_operation
  dax: introduce DAX_RECOVERY_WRITE dax access mode
  mce: fix set_mce_nospec to always unmap the whole page
  x86/mce: relocate set{clear}_mce_nospec() functions
  acpi/nfit: rely on mce->misc to determine poison granularity
  testing: nvdimm: asm/mce.h is not needed in nfit.c
  testing: nvdimm: iomap: make __nfit_test_ioremap a macro
  nvdimm: Allow overwrite in the presence of disabled dimms
  tools/testing/nvdimm: remove unneeded flush_workqueue
2022-05-27 15:49:30 -07:00
Linus Torvalds
3cc30140db pci-v5.19-changes
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCgAyFiEEgMe7l+5h9hnxdsnuWYigwDrT+vwFAmKP/tQUHGJoZWxnYWFz
 QGdvb2dsZS5jb20ACgkQWYigwDrT+vzH0xAAojQowrSWzZ5FKTqI+L/L9ZXoAb+e
 9IvQljKc9taJldmXp+EB9wkS/5B+VtQcC2qUQuWEQXUoECF8qHlcB4l+XQyd1tWO
 O0vZxETH22xjLLrjG2F3l5rrfkJZAf2nEugwbDk97YEgiimeOiRcv3bx6AUCtj6I
 rPJ13Fop3Jke7sQMcXYJe3gQLT1o1AKiQGghiCFNi/gzx2lXI6mmHBgLxFoiqcby
 WpfXbvbJti95HRaahUR3HaDFfHj4HVkQNLlTtIykJ3Tl2/rOhWEJjI8JOIQpAA+M
 WBrWw9rfgbScTiGV+dZ3h7hKiPnHKl9YETIX7L0oA2sj0jZcIs0d6mSBZx0kYuI9
 eAlx+qSK9xpbQQr/fdYaUdF1q4QdtU0BYOvOWOzWsqYCECMRJ1PUHFSMbmR/+PNB
 P5lHnAbggRSoxdAtwFYv1HTr+VpGH9S+5oxHCz3ohpMjYy6mkCZwHpZn3doaU3ci
 KG6yIoVKftm3fZdtFvL03qHl/I8+X24ZhT/T/278PRGjkhSyr56hZo8hg0gqqTct
 ngip8qNABmSbqpr73/W6Vl42zAbYtNk1BykYahbKupgW8FbT7hqaZTB05V87pVu+
 Ko1aJM6VoOP9rMlKHI9ba8eYCzDrZbLZUFn7ljNPDpzutf0tAwtgwzvZBXN3za6+
 Z9+D5dxmvrZEIbA=
 =hEti
 -----END PGP SIGNATURE-----

Merge tag 'pci-v5.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
 "Resource management:

   - Restrict E820 clipping to PCI host bridge windows (Bjorn Helgaas)

   - Log E820 clipping better (Bjorn Helgaas)

   - Add kernel cmdline options to enable/disable E820 clipping (Hans de
     Goede)

   - Disable E820 reserved region clipping for IdeaPads, Yoga, Yoga
     Slip, Acer Spin 5, Clevo Barebone systems where clipping leaves no
     usable address space for touchpads, Thunderbolt devices, etc (Hans
     de Goede)

   - Disable E820 clipping by default starting in 2023 (Hans de Goede)

  PCI device hotplug:

   - Include files to remove implicit dependencies (Christophe Leroy)

   - Only put Root Ports in D3 if they can signal and wake from D3 so
     AMD Yellow Carp doesn't miss hotplug events (Mario Limonciello)

  Power management:

   - Define pci_restore_standard_config() only for CONFIG_PM_SLEEP since
     it's unused otherwise (Krzysztof Kozlowski)

   - Power up devices completely, including anything platform firmware
     needs to do, during runtime resume (Rafael J. Wysocki)

   - Move pci_resume_bus() to PM callbacks so we observe the required
     bridge power-up delays (Rafael J. Wysocki)

   - Drop unneeded runtime_d3cold device flag (Rafael J. Wysocki)

   - Split pci_raw_set_power_state() between pci_power_up() and a new
     pci_set_low_power_state() (Rafael J. Wysocki)

   - Set current_state to D3cold if config read returns ~0, indicating
     the device is not accessible (Rafael J. Wysocki)

   - Do not call pci_update_current_state() from pci_power_up() so BARs
     and ASPM config are restored correctly (Rafael J. Wysocki)

   - Write 0 to PMCSR in pci_power_up() in all cases (Rafael J. Wysocki)

   - Split pci_power_up() to pci_set_full_power_state() to avoid some
     redundant operations (Rafael J. Wysocki)

   - Skip restoring BARs if device is not in D0 (Rafael J. Wysocki)

   - Rearrange and clarify pci_set_power_state() (Rafael J. Wysocki)

   - Remove redundant BAR restores from pci_pm_thaw_noirq() (Rafael J.
     Wysocki)

  Virtualization:

   - Acquire device lock before config space access lock to avoid AB/BA
     deadlock with sriov_numvfs_store() (Yicong Yang)

  Error handling:

   - Clear MULTI_ERR_COR/UNCOR_RCV bits, which a race could previously
     leave permanently set (Kuppuswamy Sathyanarayanan)

  Peer-to-peer DMA:

   - Whitelist Intel Skylake-E Root Ports regardless of which devfn they
     are (Shlomo Pongratz)

  ASPM:

   - Override L1 acceptable latency advertised by Intel DG2 so ASPM L1
     can be enabled (Mika Westerberg)

  Cadence PCIe controller driver:

   - Set up device-specific register to allow PTM Responder to be
     enabled by the normal architected bit (Christian Gmeiner)

   - Override advertised FLR support since the controller doesn't
     implement FLR correctly (Parshuram Thombare)

  Cadence PCIe endpoint driver:

   - Correct bitmap size for the ob_region_map of outbound window usage
     (Dan Carpenter)

  Freescale i.MX6 PCIe controller driver:

   - Fix PERST# assertion/deassertion so we observe the required delays
     before accessing device (Francesco Dolcini)

  Freescale Layerscape PCIe controller driver:

   - Add "big-endian" DT property (Hou Zhiqiang)

   - Update SCFG DT property (Hou Zhiqiang)

   - Add "aer", "pme", "intr" DT properties (Li Yang)

   - Add DT compatible strings for ls1028a (Xiaowei Bao)

  Intel VMD host bridge driver:

   - Assign VMD IRQ domain before enumeration to avoid IOMMU interrupt
     remapping errors when MSI-X remapping is disabled (Nirmal Patel)

   - Revert VMD workaround that kept MSI-X remapping enabled when IOMMU
     remapping was enabled (Nirmal Patel)

  Marvell MVEBU PCIe controller driver:

   - Add of_pci_get_slot_power_limit() to parse the
     'slot-power-limit-milliwatt' DT property (Pali Rohár)

   - Add mvebu support for sending Set_Slot_Power_Limit message (Pali
     Rohár)

  MediaTek PCIe controller driver:

   - Fix refcount leak in mtk_pcie_subsys_powerup() (Miaoqian Lin)

  MediaTek PCIe Gen3 controller driver:

   - Reset PHY and MAC at probe time (AngeloGioacchino Del Regno)

  Microchip PolarFlare PCIe controller driver:

   - Add chained_irq_enter()/chained_irq_exit() calls to mc_handle_msi()
     and mc_handle_intx() to avoid lost interrupts (Conor Dooley)

   - Fix interrupt handling race (Daire McNamara)

  NVIDIA Tegra194 PCIe controller driver:

   - Drop tegra194 MSI register save/restore, which is unnecessary since
     the DWC core does it (Jisheng Zhang)

  Qualcomm PCIe controller driver:

   - Add SM8150 SoC DT binding and support (Bhupesh Sharma)

   - Fix pipe clock imbalance (Johan Hovold)

   - Fix runtime PM imbalance on probe errors (Johan Hovold)

   - Fix PHY init imbalance on probe errors (Johan Hovold)

   - Convert DT binding to YAML (Dmitry Baryshkov)

   - Update DT binding to show that resets aren't required for
     MSM8996/APQ8096 platforms (Dmitry Baryshkov)

   - Add explicit register names per chipset in DT binding (Dmitry
     Baryshkov)

   - Add sc7280-specific clock and reset definitions to DT binding
     (Dmitry Baryshkov)

  Rockchip PCIe controller driver:

   - Fix bitmap size when searching for free outbound region (Dan
     Carpenter)

  Rockchip DesignWare PCIe controller driver:

   - Remove "snps,dw-pcie" from rockchip-dwc DT "compatible" property
     because it's not fully compatible with rockchip (Peter Geis)

   - Reset rockchip-dwc controller at probe (Peter Geis)

   - Add rockchip-dwc INTx support (Peter Geis)

  Synopsys DesignWare PCIe controller driver:

   - Return error instead of success if DMA mapping of MSI area fails
     (Jiantao Zhang)

  Miscellaneous:

   - Change pci_set_dma_mask() documentation references to
     dma_set_mask() (Alex Williamson)"

* tag 'pci-v5.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (64 commits)
  dt-bindings: PCI: qcom: Add schema for sc7280 chipset
  dt-bindings: PCI: qcom: Specify reg-names explicitly
  dt-bindings: PCI: qcom: Do not require resets on msm8996 platforms
  dt-bindings: PCI: qcom: Convert to YAML
  PCI: qcom: Fix unbalanced PHY init on probe errors
  PCI: qcom: Fix runtime PM imbalance on probe errors
  PCI: qcom: Fix pipe clock imbalance
  PCI: qcom: Add SM8150 SoC support
  dt-bindings: pci: qcom: Document PCIe bindings for SM8150 SoC
  x86/PCI: Disable E820 reserved region clipping starting in 2023
  x86/PCI: Disable E820 reserved region clipping via quirks
  x86/PCI: Add kernel cmdline options to use/ignore E820 reserved regions
  PCI: microchip: Fix potential race in interrupt handling
  PCI/AER: Clear MULTI_ERR_COR/UNCOR_RCV bits
  PCI: cadence: Clear FLR in device capabilities register
  PCI: cadence: Allow PTM Responder to be enabled
  PCI: vmd: Revert 2565e5b69c ("PCI: vmd: Do not disable MSI-X remapping if interrupt remapping is enabled by IOMMU.")
  PCI: vmd: Assign VMD IRQ domain before enumeration
  PCI: Avoid pci_dev_lock() AB/BA deadlock with sriov_numvfs_store()
  PCI: rockchip-dwc: Add legacy interrupt support
  ...
2022-05-27 15:25:10 -07:00
Linus Torvalds
77fb622de1 Six hotfixes. One from Miaohe Lin is considered a minor thing so it isn't
for -stable.  The remainder address pre-5.19 issues and are cc:stable.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCYpEC8gAKCRDdBJ7gKXxA
 jlukAQDCaXF7YTBjpoaAl0zhSu+5h7CawiB6cnRlq87/uJ2S4QD/eLVX3zfxI2DX
 YcOhc5H8BOgZ8ppD80Nv9qjmyvEWzAA=
 =ZFFG
 -----END PGP SIGNATURE-----

Merge tag 'mm-hotfixes-stable-2022-05-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull hotfixes from Andrew Morton:
 "Six hotfixes.

  The page_table_check one from Miaohe Lin is considered a minor thing
  so it isn't marked for -stable. The remainder address pre-5.19 issues
  and are cc:stable"

* tag 'mm-hotfixes-stable-2022-05-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/page_table_check: fix accessing unmapped ptep
  kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
  mm/page_alloc: always attempt to allocate at least one page during bulk allocation
  hugetlb: fix huge_pmd_unshare address update
  zsmalloc: fix races between asynchronous zspage free and page migration
  Revert "mm/cma.c: remove redundant cma_mutex lock"
2022-05-27 11:29:35 -07:00
Linus Torvalds
6f664045c8 Not a lot of material this cycle. Many singleton patches against various
subsystems.   Most notably some maintenance work in ocfs2 and initramfs.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCYo/6xQAKCRDdBJ7gKXxA
 jkD9AQCPczLBbRWpe1edL+5VHvel9ePoHQmvbHQnufdTh9rB5QEAu0Uilxz4q9cx
 xSZypNhj2n9f8FCYca/ZrZneBsTnAA8=
 =AJEO
 -----END PGP SIGNATURE-----

Merge tag 'mm-nonmm-stable-2022-05-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc updates from Andrew Morton:
 "The non-MM patch queue for this merge window.

  Not a lot of material this cycle. Many singleton patches against
  various subsystems. Most notably some maintenance work in ocfs2
  and initramfs"

* tag 'mm-nonmm-stable-2022-05-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (65 commits)
  kcov: update pos before writing pc in trace function
  ocfs2: dlmfs: fix error handling of user_dlm_destroy_lock
  ocfs2: dlmfs: don't clear USER_LOCK_ATTACHED when destroying lock
  fs/ntfs: remove redundant variable idx
  fat: remove time truncations in vfat_create/vfat_mkdir
  fat: report creation time in statx
  fat: ignore ctime updates, and keep ctime identical to mtime in memory
  fat: split fat_truncate_time() into separate functions
  MAINTAINERS: add Muchun as a memcg reviewer
  proc/sysctl: make protected_* world readable
  ia64: mca: drop redundant spinlock initialization
  tty: fix deadlock caused by calling printk() under tty_port->lock
  relay: remove redundant assignment to pointer buf
  fs/ntfs3: validate BOOT sectors_per_clusters
  lib/string_helpers: fix not adding strarray to device's resource list
  kernel/crash_core.c: remove redundant check of ck_cmdline
  ELF, uapi: fixup ELF_ST_TYPE definition
  ipc/mqueue: use get_tree_nodev() in mqueue_get_tree()
  ipc: update semtimedop() to use hrtimer
  ipc/sem: remove redundant assignments
  ...
2022-05-27 11:22:03 -07:00
Naveen N. Rao
3e35142ef9 kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
Since commit d1bcae833b32f1 ("ELF: Don't generate unused section
symbols") [1], binutils (v2.36+) started dropping section symbols that
it thought were unused.  This isn't an issue in general, but with
kexec_file.c, gcc is placing kexec_arch_apply_relocations[_add] into a
separate .text.unlikely section and the section symbol ".text.unlikely"
is being dropped. Due to this, recordmcount is unable to find a non-weak
symbol in .text.unlikely to generate a relocation record against.

Address this by dropping the weak attribute from these functions.
Instead, follow the existing pattern of having architectures #define the
name of the function they want to override in their headers.

[1] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=d1bcae833b32f1

[akpm@linux-foundation.org: arch/s390/include/asm/kexec.h needs linux/module.h]
Link: https://lkml.kernel.org/r/20220519091237.676736-1-naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-05-27 08:55:18 -07:00
Borislav Petkov
2028a255f4 x86/extable: Annotate ex_handler_msr_mce() as a dead end
Fix

  vmlinux.o: warning: objtool: fixup_exception+0x2d6: unreachable instruction

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220520192729.23969-1-bp@alien8.de
2022-05-27 12:34:45 +02:00
Peter Zijlstra
1894a40305 x86: Always inline on_thread_stack() and current_top_of_stack()
Becaues GCC clearly lost it's marbles again...

vmlinux.o: warning: objtool: enter_from_user_mode+0x4e: call to on_thread_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x53: call to on_thread_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x4e: call to on_thread_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x4e: call to on_thread_stack() leaves .noinstr.text section

vmlinux.o: warning: objtool: enter_from_user_mode+0x4e: call to current_top_of_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x53: call to current_top_of_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x4e: call to current_top_of_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x4e: call to current_top_of_stack() leaves .noinstr.text section

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220526105958.071435483@infradead.org
2022-05-27 12:34:44 +02:00
Peter Zijlstra
a6a5eb269f x86/cpu: Elide KCSAN for cpu_has() and friends
As x86 uses the <asm-generic/bitops/instrumented-*.h> headers, the
regular forms of all bitops are instrumented with explicit calls to
KASAN and KCSAN checks. As these are explicit calls, these are not
suppressed by the noinstr function attribute.

This can result in calls to those check functions in noinstr code, which
objtool warns about:

vmlinux.o: warning: objtool: enter_from_user_mode+0x24: call to __kcsan_check_access() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x28: call to __kcsan_check_access() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x24: call to __kcsan_check_access() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x24: call to __kcsan_check_access() leaves .noinstr.text section

Prevent this by using the arch_*() bitops, which are the underlying
bitops without explciit instrumentation.

[null: Changelog]
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220502111216.290518605@infradead.org
2022-05-27 12:34:43 +02:00
Josh Poimboeuf
5f3da8c085 objtool: Add CONFIG_HAVE_UACCESS_VALIDATION
Allow an arch specify that it has objtool uaccess validation with
CONFIG_HAVE_UACCESS_VALIDATION.  For now, doing so unconditionally
selects CONFIG_OBJTOOL.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/d393d5e2fe73aec6e8e41d5c24f4b6fe8583f2d8.1650384225.git.jpoimboe@redhat.com
2022-05-27 12:34:43 +02:00
Fanjun Kong
e19d11267f x86/mm: Use PAGE_ALIGNED(x) instead of IS_ALIGNED(x, PAGE_SIZE)
The <linux/mm.h> already provides the PAGE_ALIGNED() macro. Let's
use this macro instead of IS_ALIGNED() and passing PAGE_SIZE directly.

No change in functionality.

[ mingo: Tweak changelog. ]

Signed-off-by: Fanjun Kong <bh1scw@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20220526142038.1582839-1-bh1scw@gmail.com
2022-05-27 12:19:56 +02:00
Bo Liu
f7081834b2 x86: Fix all occurences of the "the the" typo
Rather than waiting for the bots to fix these one-by-one,
fix all occurences of "the the" throughout arch/x86.

Signed-off-by: Bo Liu <liubo03@inspur.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20220527061400.5694-1-liubo03@inspur.com
2022-05-27 12:15:39 +02:00
Vincent Whitchurch
2a4a62a14b um: Fix out-of-bounds read in LDT setup
syscall_stub_data() expects the data_count parameter to be the number of
longs, not bytes.

 ==================================================================
 BUG: KASAN: stack-out-of-bounds in syscall_stub_data+0x70/0xe0
 Read of size 128 at addr 000000006411f6f0 by task swapper/1

 CPU: 0 PID: 1 Comm: swapper Not tainted 5.18.0+ #18
 Call Trace:
  show_stack.cold+0x166/0x2a7
  __dump_stack+0x3a/0x43
  dump_stack_lvl+0x1f/0x27
  print_report.cold+0xdb/0xf81
  kasan_report+0x119/0x1f0
  kasan_check_range+0x3a3/0x440
  memcpy+0x52/0x140
  syscall_stub_data+0x70/0xe0
  write_ldt_entry+0xac/0x190
  init_new_ldt+0x515/0x960
  init_new_context+0x2c4/0x4d0
  mm_init.constprop.0+0x5ed/0x760
  mm_alloc+0x118/0x170
  0x60033f48
  do_one_initcall+0x1d7/0x860
  0x60003e7b
  kernel_init+0x6e/0x3d4
  new_thread_handler+0x1e7/0x2c0

 The buggy address belongs to stack of task swapper/1
  and is located at offset 64 in frame:
  init_new_ldt+0x0/0x960

 This frame has 2 objects:
  [32, 40) 'addr'
  [64, 80) 'desc'
 ==================================================================

Fixes: 858259cf7d ("uml: maintain own LDT entries")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Cc: stable@vger.kernel.org
Signed-off-by: Richard Weinberger <richard@nod.at>
2022-05-27 09:03:41 +02:00
sunliming
aef54851bf x86/traceponit: Fix comment about irq vector tracepoints
Commit:

  4b9a8dca0e ("x86/idt: Remove the tracing IDT completely")

removed the 'tracing IDT' from arch/x86/kernel/tracepoint.c,
but left related comment. So that the comment become anachronistic.
Just remove the comment.

Link: https://lkml.kernel.org/r/20220526110831.175743-1-sunliming@kylinos.cn

Signed-off-by: sunliming <sunliming@kylinos.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-05-26 22:03:52 -04:00
sunliming
feccde2a49 x86,tracing: Remove unused headers
Commit 4b9a8dca0e ("x86/idt: Remove the tracing IDT completely")
removed the tracing IDT from the file arch/x86/kernel/tracepoint.c,
but left the related headers unused, remove it.

Link: https://lkml.kernel.org/r/20220525012827.93464-1-sunliming@kylinos.cn

Signed-off-by: sunliming <sunliming@kylinos.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-05-26 21:13:01 -04:00
Li kunyu
3a2bfec0b0 ftrace: Remove return value of ftrace_arch_modify_*()
All instances of the function ftrace_arch_modify_prepare() and
  ftrace_arch_modify_post_process() return zero. There's no point in
  checking their return value. Just have them be void functions.

Link: https://lkml.kernel.org/r/20220518023639.4065-1-kunyu@nfschina.com

Signed-off-by: Li kunyu <kunyu@nfschina.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-05-26 21:13:00 -04:00