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cc801833a1
linux/arch/x86
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Andy Lutomirski cc801833a1 x86/ldt: Disable 16-bit segments on Xen PV 
Xen PV doesn't implement ESPFIX64, so they don't work right.  Disable
them.  Also print a warning the first time anyone tries to use a
16-bit segment on a Xen PV guest that would otherwise allow it
to help people diagnose this change in behavior.

This gets us closer to having all x86 selftests pass on Xen PV.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/92b2975459dfe5929ecf34c3896ad920bd9e3f2d.1593795633.git.luto@kernel.org
2020-07-04 19:47:26 +02:00
..
boot Rebase locking/kcsan to locking/urgent 2020-06-11 20:02:46 +02:00
configs
crypto There are a lot of objtool changes in this cycle, all across the map: 2020-06-01 13:13:00 -07:00
entry x86/entry, selftests: Further improve user entry sanity checks 2020-07-04 19:47:25 +02:00
events treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
hyperv x86/entry: Convert various hypervisor vectors to IDTENTRY_SYSVEC 2020-06-11 15:15:15 +02:00
ia32 Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2020-06-04 14:07:08 -07:00
include x86/entry/32: Fix #MC and #DB wiring on x86_32 2020-07-04 19:47:26 +02:00
kernel x86/ldt: Disable 16-bit segments on Xen PV 2020-07-04 19:47:26 +02:00
kvm Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
lib Rebase locking/kcsan to locking/urgent 2020-06-11 20:02:46 +02:00
math-emu
mm maccess: rename probe_kernel_address to get_kernel_nofault 2020-06-18 11:14:40 -07:00
net bpf, i386: Remove unneeded conversion to bool 2020-05-07 16:29:14 +02:00
oprofile
pci maccess: rename probe_kernel_address to get_kernel_nofault 2020-06-18 11:14:40 -07:00
platform x86/platform/intel-mid: convert to use i2c_new_client_device() 2020-06-19 09:20:25 +02:00
power mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
purgatory x86/purgatory: Add -fno-stack-protector 2020-06-16 17:05:07 -07:00
ras treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
realmode Rebase locking/kcsan to locking/urgent 2020-06-11 20:02:46 +02:00
tools
um mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
video
xen x86/entry/xen: Route #DB correctly on Xen PV 2020-07-04 19:47:25 +02:00
.gitignore
Kbuild
Kconfig Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
Kconfig.assembler x86/delay: Introduce TPAUSE delay 2020-05-07 16:06:20 +02:00
Kconfig.cpu treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Kconfig.debug treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile x86/boot/build: Make 'make bzlilo' not depend on vmlinux or $(obj)/bzImage 2020-04-21 18:10:28 +02:00
Makefile_32.cpu
Makefile.um