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KVM: Expose a version 2 architectural PMU to a guests

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Use perf_events to emulate an architectural PMU, version 2.

Based on PMU version 1 emulation by Avi Kivity.

[avi: adjust for cpuid.c]
[jan: fix anonymous field initialization for older gcc]

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Gleb Natapov
2011-11-10 14:57:22 +02:00
committed by Avi Kivity
parent 8934208221
commit f5132b0138
7 changed files with 600 additions and 10 deletions
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2
include/linux/kvm_host.h
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@@ -52,6 +52,8 @@
#define KVM_REQ_STEAL_UPDATE 13
#define KVM_REQ_NMI 14
#define KVM_REQ_IMMEDIATE_EXIT 15
#define KVM_REQ_PMU 16
#define KVM_REQ_PMI 17
#define KVM_USERSPACE_IRQ_SOURCE_ID 0