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authorAaron Lewis <aaronlewis@google.com>2022-02-14 21:29:51 +0000
committerPaolo Bonzini <pbonzini@redhat.com>2022-02-17 09:52:50 -0500
commit127770ac0d043435375ab86434f31a93efa88215 (patch)
tree74c97683ef2e7be02e2fecb03b559ef1e0085a50 /arch
parent710c476514313c74045c41c0571bb5178fd16e3d (diff)
KVM: x86: Add KVM_CAP_ENABLE_CAP to x86
Follow the precedent set by other architectures that support the VCPU ioctl, KVM_ENABLE_CAP, and advertise the VM extension, KVM_CAP_ENABLE_CAP. This way, userspace can ensure that KVM_ENABLE_CAP is available on a vcpu before using it. Fixes: 5c919412fe61 ("kvm/x86: Hyper-V synthetic interrupt controller") Signed-off-by: Aaron Lewis <aaronlewis@google.com> Message-Id: <20220214212950.1776943-1-aaronlewis@google.com> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kvm/x86.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 641044db415d..b8bd8da32045 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4233,6 +4233,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_EXIT_ON_EMULATION_FAILURE:
case KVM_CAP_VCPU_ATTRIBUTES:
case KVM_CAP_SYS_ATTRIBUTES:
+ case KVM_CAP_ENABLE_CAP:
r = 1;
break;
case KVM_CAP_EXIT_HYPERCALL: