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2924b52117
linux/arch/x86/kvm
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Paolo Bonzini 2924b52117 KVM: x86/pmu: do not mask the value that is written to fixed PMUs 
According to the SDM, for MSR_IA32_PERFCTR0/1 "the lower-order 32 bits of
each MSR may be written with any value, and the high-order 8 bits are
sign-extended according to the value of bit 31", but the fixed counters
in real hardware are limited to the width of the fixed counters ("bits
beyond the width of the fixed-function counter are reserved and must be
written as zeros").  Fix KVM to do the same.

Reported-by: Nadav Amit <nadav.amit@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-05-24 21:27:14 +02:00
..
vmx KVM: x86/pmu: do not mask the value that is written to fixed PMUs 2019-05-24 21:27:14 +02:00
cpuid.c kvm: x86: Include CPUID leaf 0x8000001e in kvm's supported CPUID 2019-05-24 21:27:06 +02:00
cpuid.h KVM/x86: Update the reverse_cpuid list to include CPUID_7_EDX 2018-02-03 23:06:51 +01:00
debugfs.c KVM: LAPIC: Expose per-vCPU timer_advance_ns to userspace 2019-05-24 21:27:09 +02:00
emulate.c KVM: x86: Always use 32-bit SMRAM save state for 32-bit kernels 2019-04-16 15:37:38 +02:00
hyperv.c * ARM: support for SVE and Pointer Authentication in guests, PMU improvements 2019-05-17 10:33:30 -07:00
hyperv.h x86/kvm/hyper-v: Introduce KVM_GET_SUPPORTED_HV_CPUID 2018-12-14 17:59:54 +01:00
i8254.c kvm: x86: Add memcg accounting to KVM allocations 2019-02-20 22:48:30 +01:00
i8254.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
i8259.c kvm: x86: Add memcg accounting to KVM allocations 2019-02-20 22:48:30 +01:00
ioapic.c kvm: x86: Add memcg accounting to KVM allocations 2019-02-20 22:48:30 +01:00
ioapic.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq_comm.c KVM: x86: don't hold kvm->lock in KVM_SET_GSI_ROUTING 2017-05-02 14:45:45 +02:00
irq.c kvm: Check irqchip mode before assign irqfd 2019-05-24 21:27:12 +02:00
irq.h kvm: Check irqchip mode before assign irqfd 2019-05-24 21:27:12 +02:00
Kconfig Make anon_inodes unconditional 2019-04-19 14:03:11 +02:00
kvm_cache_regs.h KVM: x86: use direct accessors for RIP and RSP 2019-04-30 22:07:26 +02:00
lapic.c * ARM: support for SVE and Pointer Authentication in guests, PMU improvements 2019-05-17 10:33:30 -07:00
lapic.h KVM: lapic: Allow user to disable adaptive tuning of timer advancement 2019-04-18 18:56:15 +02:00
Makefile KVM: x86: fix TRACE_INCLUDE_PATH and remove -I. header search paths 2019-01-25 19:12:37 +01:00
mmu_audit.c x86/kvm/mmu: make vcpu->mmu a pointer to the current MMU 2018-10-17 00:30:02 +02:00
mmu.c * ARM: support for SVE and Pointer Authentication in guests, PMU improvements 2019-05-17 10:33:30 -07:00
mmu.h kvm: mmu: Fix overflow on kvm mmu page limit calculation 2019-04-16 15:37:30 +02:00
mmutrace.h KVM: x86: fix handling of role.cr4_pae and rename it to 'gpte_size' 2019-03-28 17:27:03 +01:00
mtrr.c KVM: x86: optimize check for valid PAT value 2019-04-16 15:39:02 +02:00
page_track.c kvm: x86: Add memcg accounting to KVM allocations 2019-02-20 22:48:30 +01:00
paging_tmpl.h * ARM: support for SVE and Pointer Authentication in guests, PMU improvements 2019-05-17 10:33:30 -07:00
pmu_amd.c KVM: x86/pmu: mask the result of rdpmc according to the width of the counters 2019-05-24 21:27:13 +02:00
pmu.c KVM: x86/pmu: mask the result of rdpmc according to the width of the counters 2019-05-24 21:27:13 +02:00
pmu.h KVM: x86/pmu: mask the result of rdpmc according to the width of the counters 2019-05-24 21:27:13 +02:00
svm.c KVM: x86: do not spam dmesg with VMCS/VMCB dumps 2019-05-24 21:27:12 +02:00
trace.h KVM: x86: avoid misreporting level-triggered irqs as edge-triggered in tracing 2019-04-16 15:38:08 +02:00
tss.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
x86.c KVM: LAPIC: Fix lapic_timer_advance_ns parameter overflow 2019-05-24 21:27:09 +02:00
x86.h * ARM: support for SVE and Pointer Authentication in guests, PMU improvements 2019-05-17 10:33:30 -07:00