diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2018-04-11 13:50:36 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-05-11 14:33:39 +0200 |
| commit | ba6a4fd95de1e0a85bfbe43330448f16486e2181 (patch) | |
| tree | 10150076aa08cd93b9fe36d959d9bf27b86411c6 /target/i386/hyperv-proto.h | |
| parent | 45b47130f4b7b53eb1437e8301bfeb4e73490413 (diff) | |
i386/kvm: add support for Hyper-V reenlightenment MSRs
KVM recently gained support for Hyper-V Reenlightenment MSRs which are
required to make KVM-on-Hyper-V enable TSC page clocksource to its guests
when INVTSC is not passed to it (and it is not passed by default in Qemu
as it effectively blocks migration).
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20180411115036.31832-2-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/i386/hyperv-proto.h')
| -rw-r--r-- | target/i386/hyperv-proto.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/target/i386/hyperv-proto.h b/target/i386/hyperv-proto.h index cb4d7f2b7a..93352ebd2a 100644 --- a/target/i386/hyperv-proto.h +++ b/target/i386/hyperv-proto.h @@ -35,7 +35,7 @@ #define HV_RESET_AVAILABLE (1u << 7) #define HV_REFERENCE_TSC_AVAILABLE (1u << 9) #define HV_ACCESS_FREQUENCY_MSRS (1u << 11) - +#define HV_ACCESS_REENLIGHTENMENTS_CONTROL (1u << 13) /* * HV_CPUID_FEATURES.EDX bits @@ -130,6 +130,13 @@ #define HV_CRASH_CTL_NOTIFY (1ull << 63) /* + * Reenlightenment notification MSRs + */ +#define HV_X64_MSR_REENLIGHTENMENT_CONTROL 0x40000106 +#define HV_X64_MSR_TSC_EMULATION_CONTROL 0x40000107 +#define HV_X64_MSR_TSC_EMULATION_STATUS 0x40000108 + +/* * Hypercall status code */ #define HV_STATUS_SUCCESS 0 |