From f78e627a01bd4ec0219566d2c9c40f3c3614f875 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Fri, 20 Feb 2026 14:02:16 -0800 Subject: [PATCH] KVM: VMX: Fix a wrong MSR update in add_atomic_switch_msr() The previous change had a bug to update a guest MSR with a host value. Fixes: c3d6a7210a4de9096 ("KVM: VMX: Dedup code for adding MSR to VMCS's auto list") Signed-off-by: Namhyung Kim Reviewed-by: Dapeng Mi Link: https://patch.msgid.link/20260220220216.389475-1-namhyung@kernel.org Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx/vmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 967b58a8ab9d..83d057cfa816 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -1149,7 +1149,7 @@ static void add_atomic_switch_msr(struct vcpu_vmx *vmx, unsigned msr, } vmx_add_auto_msr(&m->guest, msr, guest_val, VM_ENTRY_MSR_LOAD_COUNT, kvm); - vmx_add_auto_msr(&m->guest, msr, host_val, VM_EXIT_MSR_LOAD_COUNT, kvm); + vmx_add_auto_msr(&m->host, msr, host_val, VM_EXIT_MSR_LOAD_COUNT, kvm); } static bool update_transition_efer(struct vcpu_vmx *vmx)