From 32d05564a6128d59ea876cf9078fe6866a809e14 Mon Sep 17 00:00:00 2001 From: Bibo Mao Date: Mon, 10 Aug 2026 12:21:50 +0800 Subject: LoongArch: KVM: Set vcpu->cpu before IN_GUEST_MODE is set In function kvm_make_vcpu_request(), it will send IPI to physical CPU when vCPU is in IN_GUEST_MODE mode. And physical CPU is set in function kvm_check_vpid(), thus it should be called before IN_GUEST_MODE is set. Otherwise IPI will send to wrong old physical CPU where vCPU is running. Cc: stable@vger.kernel.org Fixes: 2fc3bd86db4b ("LoongArch: KVM: Implement basic vcpu interfaces") Signed-off-by: Bibo Mao Signed-off-by: Huacai Chen --- arch/loongarch/kvm/vcpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/loongarch/kvm/vcpu.c b/arch/loongarch/kvm/vcpu.c index 20c207d80e31..fd0dd22a7162 100644 --- a/arch/loongarch/kvm/vcpu.c +++ b/arch/loongarch/kvm/vcpu.c @@ -300,10 +300,10 @@ static int kvm_pre_enter_guest(struct kvm_vcpu *vcpu) */ local_irq_disable(); kvm_deliver_exception(vcpu); + kvm_check_vpid(vcpu); /* Make sure the vcpu mode has been written */ smp_store_mb(vcpu->mode, IN_GUEST_MODE); kvm_deliver_intr(vcpu); - kvm_check_vpid(vcpu); /* * Called after function kvm_check_vpid() -- cgit v1.2.3