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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2019-06-03 19:52:44 -0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-06-18 11:43:46 +0200 |
| commit | 2d5ba19bdfef4dd06add144eb04287ee98409f75 (patch) | |
| tree | 740184128ac3de9a538ef62a9d525c48ddf3712a /arch/x86/kvm/cpuid.c | |
| parent | fdb28619a8f033c13f5d9b9e8b5536bb6e68a2c3 (diff) | |
| download | linux-2d5ba19bdfef4dd06add144eb04287ee98409f75.tar.bz2 | |
kvm: x86: add host poll control msrs
Add an MSRs which allows the guest to disable
host polling (specifically the cpuidle-haltpoll,
when performing polling in the guest, disables
host side polling).
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/cpuid.c')
| -rw-r--r-- | arch/x86/kvm/cpuid.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index 9872f86fdbe9..68c74e948e28 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -658,7 +658,8 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, (1 << KVM_FEATURE_PV_UNHALT) | (1 << KVM_FEATURE_PV_TLB_FLUSH) | (1 << KVM_FEATURE_ASYNC_PF_VMEXIT) | - (1 << KVM_FEATURE_PV_SEND_IPI); + (1 << KVM_FEATURE_PV_SEND_IPI) | + (1 << KVM_FEATURE_POLL_CONTROL); if (sched_info_on()) entry->eax |= (1 << KVM_FEATURE_STEAL_TIME); |