[PATCH 2/2] arm/arm64: KVM: share the check for vcpu events capability

From: Dongjiu Geng
Date: Mon Sep 24 2018 - 09:31:15 EST


The commit 539aee0edb9f ("KVM: arm64: Share the parts of
get/set events useful to 32bit") shares the get/set events
helper for arm64 and arm32, it is better also share the check
for vcpu events capability.

User space will check whether KVM supports vcpu events through
KVM_CAP_VCPU_EVENTS IOCTL.

Signed-off-by: Dongjiu Geng <gengdongjiu@xxxxxxxxxx>
---
For the 32 bit guest migration, it needs to enable the vcpu events

---
arch/arm64/kvm/reset.c | 1 -
virt/kvm/arm/arm.c | 1 +
2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index fd37c53..e50245e 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -82,7 +82,6 @@ int kvm_arch_vm_ioctl_check_extension(struct kvm *kvm, long ext)
break;
case KVM_CAP_SET_GUEST_DEBUG:
case KVM_CAP_VCPU_ATTRIBUTES:
- case KVM_CAP_VCPU_EVENTS:
r = 1;
break;
default:
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index 40e79ea..64e5d97 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -212,6 +212,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_READONLY_MEM:
case KVM_CAP_MP_STATE:
case KVM_CAP_IMMEDIATE_EXIT:
+ case KVM_CAP_VCPU_EVENTS:
r = 1;
break;
case KVM_CAP_ARM_SET_DEVICE_ADDR:
--
1.9.1