linux/arch/arm64/kvm
Linus Torvalds e813e65038 ARM: Cleanups and corner case fixes
PPC: Bugfixes
 
 x86:
 * Support for mapping DAX areas with large nested page table entries.
 * Cleanups and bugfixes here too.  A particularly important one is
 a fix for FPU load when the thread has TIF_NEED_FPU_LOAD.  There is
 also a race condition which could be used in guest userspace to exploit
 the guest kernel, for which the embargo expired today.
 * Fast path for IPI delivery vmexits, shaving about 200 clock cycles
 from IPI latency.
 * Protect against "Spectre-v1/L1TF" (bring data in the cache via
 speculative out of bound accesses, use L1TF on the sibling hyperthread
 to read it), which unfortunately is an even bigger whack-a-mole game
 than SpectreV1.
 
 Sean continues his mission to rewrite KVM.  In addition to a sizable
 number of x86 patches, this time he contributed a pretty large refactoring
 of vCPU creation that affects all architectures but should not have any
 visible effect.
 
 s390 will come next week together with some more x86 patches.
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Merge tag 'kvm-5.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "This is the first batch of KVM changes.

  ARM:
   - cleanups and corner case fixes.

  PPC:
   - Bugfixes

  x86:
   - Support for mapping DAX areas with large nested page table entries.

   - Cleanups and bugfixes here too. A particularly important one is a
     fix for FPU load when the thread has TIF_NEED_FPU_LOAD. There is
     also a race condition which could be used in guest userspace to
     exploit the guest kernel, for which the embargo expired today.

   - Fast path for IPI delivery vmexits, shaving about 200 clock cycles
     from IPI latency.

   - Protect against "Spectre-v1/L1TF" (bring data in the cache via
     speculative out of bound accesses, use L1TF on the sibling
     hyperthread to read it), which unfortunately is an even bigger
     whack-a-mole game than SpectreV1.

  Sean continues his mission to rewrite KVM. In addition to a sizable
  number of x86 patches, this time he contributed a pretty large
  refactoring of vCPU creation that affects all architectures but should
  not have any visible effect.

  s390 will come next week together with some more x86 patches"

* tag 'kvm-5.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (204 commits)
  x86/KVM: Clean up host's steal time structure
  x86/KVM: Make sure KVM_VCPU_FLUSH_TLB flag is not missed
  x86/kvm: Cache gfn to pfn translation
  x86/kvm: Introduce kvm_(un)map_gfn()
  x86/kvm: Be careful not to clear KVM_VCPU_FLUSH_TLB bit
  KVM: PPC: Book3S PR: Fix -Werror=return-type build failure
  KVM: PPC: Book3S HV: Release lock on page-out failure path
  KVM: arm64: Treat emulated TVAL TimerValue as a signed 32-bit integer
  KVM: arm64: pmu: Only handle supported event counters
  KVM: arm64: pmu: Fix chained SW_INCR counters
  KVM: arm64: pmu: Don't mark a counter as chained if the odd one is disabled
  KVM: arm64: pmu: Don't increment SW_INCR if PMCR.E is unset
  KVM: x86: Use a typedef for fastop functions
  KVM: X86: Add 'else' to unify fastop and execute call path
  KVM: x86: inline memslot_valid_for_gpte
  KVM: x86/mmu: Use huge pages for DAX-backed files
  KVM: x86/mmu: Remove lpage_is_disallowed() check from set_spte()
  KVM: x86/mmu: Fold max_mapping_level() into kvm_mmu_hugepage_adjust()
  KVM: x86/mmu: Zap any compound page when collapsing sptes
  KVM: x86/mmu: Remove obsolete gfn restoration in FNAME(fetch)
  ...
2020-01-31 09:30:41 -08:00
..
hyp ARM: Cleanups and corner case fixes 2020-01-31 09:30:41 -08:00
debug.c KVM: arm64: Write arch.mdcr_el2 changes since last vcpu_load on VHE 2020-01-22 18:38:04 +00:00
fpsimd.c arm64/fpsimd: Introduce fpsimd_save_and_flush_cpu_state() and use it 2019-06-04 13:17:30 +01:00
guest.c KVM: Drop kvm_arch_vcpu_setup() 2020-01-27 19:59:28 +01:00
handle_exit.c KVM: arm/arm64: Factor out hypercall handling from PSCI code 2019-10-21 19:20:26 +01:00
hyp-init.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
hyp.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
inject_fault.c KVM: arm64: Correct PSTATE on exception entry 2020-01-19 18:06:13 +00:00
irq.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 2019-06-05 17:37:15 +02:00
Kconfig KVM: arm64: Select TASK_DELAY_ACCT+TASKSTATS rather than SCHEDSTATS 2019-10-24 14:49:45 +01:00
Makefile KVM: arm64: Implement PV_TIME_FEATURES call 2019-10-21 19:20:27 +01:00
pmu.c KVM: arm64: Move pmu hyp code under hyp's Makefile to avoid instrumentation 2019-05-24 14:53:20 +01:00
regmap.c arm64: KVM: regmap: Fix unexpected switch fall-through 2019-07-26 15:33:41 +01:00
reset.c KVM: Drop kvm_arch_vcpu_init() and kvm_arch_vcpu_uninit() 2020-01-27 19:59:33 +01:00
sys_regs_generic_v8.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
sys_regs.c arm64: Introduce ID_ISAR6 CPU register 2020-01-15 11:13:27 +00:00
sys_regs.h KVM: arm64: Sanely ratelimit sysreg messages 2019-12-06 11:41:45 +00:00
trace.h arm64: KVM: Add trapped system register access tracepoint 2018-12-19 17:47:08 +00:00
va_layout.c arm64: kvm: Fix IDMAP overlap with HYP VA 2020-01-19 16:05:23 +00:00
vgic-sys-reg-v3.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00