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

[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>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index f87f7fcefa0a..531f47cbf1f8 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -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];