From: Dongjiu Geng <gengdongjiu@huawei.com>
To: <christoffer.dall@arm.com>, <marc.zyngier@arm.com>,
<james.morse@arm.com>, <drjones@redhat.com>,
<peter.maydell@linaro.org>, <linux@armlinux.org.uk>,
<catalin.marinas@arm.com>, <will.deacon@arm.com>,
<linux-arm-kernel@lists.infradead.org>,
<kvmarm@lists.cs.columbia.edu>, <linux-kernel@vger.kernel.org>
Cc: <gengdongjiu@huawei.com>
Subject: [PATCH 2/2] arm/arm64: KVM: share the check for vcpu events capability
Date: Mon, 24 Sep 2018 21:30:00 +0800 [thread overview]
Message-ID: <20180924133000.10244-3-gengdongjiu@huawei.com> (raw)
In-Reply-To: <20180924133000.10244-1-gengdongjiu@huawei.com>
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@huawei.com>
---
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
next prev parent reply other threads:[~2018-09-24 13:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-24 13:29 [PATCH 0/2] rename function name and enable 32bit vcpu events Dongjiu Geng
2018-09-24 13:29 ` [PATCH 1/2] arm/arm64: KVM: rename function kvm_arch_dev_ioctl_check_extension() Dongjiu Geng
2018-09-24 13:30 ` Dongjiu Geng [this message]
2018-09-27 15:01 [PATCH 2/2] arm/arm64: KVM: share the check for vcpu events capability gengdongjiu
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