diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2018-06-10 20:49:27 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-07-02 14:45:23 +0200 |
| commit | 475120099d446fe106ad970a225327990d747a61 (patch) | |
| tree | 1baae080e5cbdeb654bd2ea21b97f1792fe26c4c /target/i386/hyperv-proto.h | |
| parent | 646f34fa5482e495483de230b4cf0f2ae4fd2781 (diff) | |
i386/kvm: add support for Hyper-V TLB flush
Add support for Hyper-V TLB flush which recently got added to KVM.
Just like regular Hyper-V we announce HV_EX_PROCESSOR_MASKS_RECOMMENDED
regardless of how many vCPUs we have. Windows is 'smart' and uses less
expensive non-EX Hypercall whenever possible (when it wants to flush TLB
for all vCPUs or the maximum vCPU index in the vCPU set requires flushing
is less than 64).
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20180610184927.19309-1-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 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target/i386/hyperv-proto.h b/target/i386/hyperv-proto.h index 93352ebd2a..d6d5a79293 100644 --- a/target/i386/hyperv-proto.h +++ b/target/i386/hyperv-proto.h @@ -58,6 +58,7 @@ #define HV_APIC_ACCESS_RECOMMENDED (1u << 3) #define HV_SYSTEM_RESET_RECOMMENDED (1u << 4) #define HV_RELAXED_TIMING_RECOMMENDED (1u << 5) +#define HV_EX_PROCESSOR_MASKS_RECOMMENDED (1u << 11) /* * Basic virtualized MSRs |