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| author | Andrey Smetanin <asmetanin@virtuozzo.com> | 2015-09-16 12:29:50 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-10-01 15:06:33 +0200 |
| commit | 9eec50b8bbe1535c440a1ee88c1958f78fc55957 (patch) | |
| tree | 52b64637f1d0f83baddbce10436aa9b36290f4db /arch/x86/include/uapi/asm/hyperv.h | |
| parent | 11c4b1ca719eaaa5ca6fe0e80bb009f3f2012fd2 (diff) | |
| download | linux-9eec50b8bbe1535c440a1ee88c1958f78fc55957.tar.bz2 | |
kvm/x86: Hyper-V HV_X64_MSR_VP_RUNTIME support
HV_X64_MSR_VP_RUNTIME msr used by guest to get
"the time the virtual processor consumes running guest code,
and the time the associated logical processor spends running
hypervisor code on behalf of that guest."
Calculation of this time is performed by task_cputime_adjusted()
for vcpu task.
Necessary to support loading of winhv.sys in guest, which in turn is
required to support Windows VMBus.
Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Gleb Natapov <gleb@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/uapi/asm/hyperv.h')
| -rw-r--r-- | arch/x86/include/uapi/asm/hyperv.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/uapi/asm/hyperv.h b/arch/x86/include/uapi/asm/hyperv.h index dab584bf7ddf..2677a0aac2cc 100644 --- a/arch/x86/include/uapi/asm/hyperv.h +++ b/arch/x86/include/uapi/asm/hyperv.h @@ -156,6 +156,9 @@ /* MSR used to reset the guest OS. */ #define HV_X64_MSR_RESET 0x40000003 +/* MSR used to provide vcpu runtime in 100ns units */ +#define HV_X64_MSR_VP_RUNTIME 0x40000010 + /* MSR used to read the per-partition time reference counter */ #define HV_X64_MSR_TIME_REF_COUNT 0x40000020 |