KVM x86/pmu fixes for 6.6:

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- Truncate writes to PMU counters to the counter's width to avoid spurious
    overflows when emulating counter events in software.
 
  - Set the LVTPC entry mask bit when handling a PMI (to match Intel-defined
    architectural behavior).
 
  - Treat KVM_REQ_PMI as a wake event instead of queueing host IRQ work to
    kick the guest out of emulated halt.
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Merge tag 'kvm-x86-pmu-6.6-fixes' of https://github.com/kvm-x86/linux into HEAD

KVM x86/pmu fixes for 6.6:

 - Truncate writes to PMU counters to the counter's width to avoid spurious
   overflows when emulating counter events in software.

 - Set the LVTPC entry mask bit when handling a PMI (to match Intel-defined
   architectural behavior).

 - Treat KVM_REQ_PMI as a wake event instead of queueing host IRQ work to
   kick the guest out of emulated halt.

...

This commit is contained in:

Paolo Bonzini 2023-10-15 08:24:18 -04:00

parent 24422df3fb 73554b29bd

commit 88e4cd893f

7 changed files with 19 additions and 32 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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1

arch/x86/include/asm/kvm_host.h

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8

arch/x86/kvm/lapic.c

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27

arch/x86/kvm/pmu.c

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6

arch/x86/kvm/pmu.h

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2

arch/x86/kvm/svm/pmu.c

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4

arch/x86/kvm/vmx/pmu_intel.c

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3

arch/x86/kvm/x86.c

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