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LoongArch: KVM: Set vcpu->cpu before IN_GUEST_MODE is set

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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: 2fc3bd86db ("LoongArch: KVM: Implement basic vcpu interfaces")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Bibo Mao 2026-08-10 12:21:50 +08:00 committed by Huacai Chen
parent fd4021529f
commit 32d05564a6
1 changed files with 1 additions and 1 deletions
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2
arch/loongarch/kvm/vcpu.c
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@ -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()