From 2d5ba19bdfef4dd06add144eb04287ee98409f75 Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Mon, 3 Jun 2019 19:52:44 -0300 Subject: 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 Signed-off-by: Paolo Bonzini --- arch/x86/kvm/cpuid.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/x86/kvm/cpuid.c') 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); -- cgit v1.2.3-58-ga151