Re: [Qemu-devel] [PATCH] KVM: x86: handle KVM_SET_VCPU_EVENTS/KVM_VCPUEVENT_VALID_SMM properly

["Herongguang (Stephen)" <herongguang.he@huawei.com>]

On 2016/9/23 12:59, herongguang wrote:
> From: He Rongguang <herongguang.he@huawei.com>
>
> handle KVM_VCPUEVENT_VALID_SMM properly, or kvm-kmod/kernel will crash
> in migration destination in gfn_to_rmap() since kvm_memslots_for_spte_role
> is false, whilst (vcpu->arch.hflags & HF_SMM_MASK) is true
>
> Signed-off-by: herongguang <herongguang.he@huawei.com>
> ---
>   arch/x86/kvm/x86.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 699f872..7ebcb59 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -3028,6 +3028,7 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
>   			else
>   				clear_bit(KVM_APIC_INIT, &vcpu->arch.apic->pending_events);
>   		}
> +		kvm_mmu_reset_context(vcpu);
>   	}
>
>   	kvm_make_request(KVM_REQ_EVENT, vcpu);
>

Hi, do you think this is OK for linux 4.9?