From: "Radim Krčmář" <rkrcmar@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: kvm@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>
Subject: [PATCH] KVM: x86: allow TSC deadline timer on all hosts
Date: Thu, 8 Jan 2015 15:59:30 +0100 [thread overview]
Message-ID: <1420729170-23768-1-git-send-email-rkrcmar@redhat.com> (raw)
Emulation does not utilize the feature.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
---
arch/x86/kvm/x86.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 933a373..ed879f1 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2743,6 +2743,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_READONLY_MEM:
case KVM_CAP_HYPERV_TIME:
case KVM_CAP_IOAPIC_POLARITY_IGNORED:
+ case KVM_CAP_TSC_DEADLINE_TIMER:
#ifdef CONFIG_KVM_DEVICE_ASSIGNMENT
case KVM_CAP_ASSIGN_DEV_IRQ:
case KVM_CAP_PCI_2_3:
@@ -2781,9 +2782,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_TSC_CONTROL:
r = kvm_has_tsc_control;
break;
- case KVM_CAP_TSC_DEADLINE_TIMER:
- r = boot_cpu_has(X86_FEATURE_TSC_DEADLINE_TIMER);
- break;
default:
r = 0;
break;
--
2.2.0
next reply other threads:[~2015-01-08 14:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-08 14:59 Radim Krčmář [this message]
2015-01-08 16:23 ` Paolo Bonzini
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