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perf, kvm: Support the in_tx/in_tx_cp modifiers in KVM arch perfmon emulation v5

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[KVM maintainers:
The underlying support for this is in perf/core now. So please merge
this patch into the KVM tree.]

This is not arch perfmon, but older CPUs will just ignore it. This makes
it possible to do at least some TSX measurements from a KVM guest

v2: Various fixes to address review feedback
v3: Ignore the bits when no CPUID. No #GP. Force raw events with TSX bits.
v4: Use reserved bits for #GP
v5: Remove obsolete argument
Acked-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Andi Kleen
2013-07-18 15:57:02 -07:00
committed by Paolo Bonzini
parent 21feb4eb64
commit 103af0a987
2 changed files with 21 additions and 5 deletions
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arch/x86/include/asm/kvm_host.h
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@@ -323,6 +323,7 @@ struct kvm_pmu {
u64 global_ovf_ctrl;
u64 counter_bitmask[2];
u64 global_ctrl_mask;
u64 reserved_bits;
u8 version;
struct kvm_pmc gp_counters[INTEL_PMC_MAX_GENERIC];
struct kvm_pmc fixed_counters[INTEL_PMC_MAX_FIXED];