From nobody Fri Apr 17 10:35:52 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EC7F32F3C30; Fri, 20 Feb 2026 22:02:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771624938; cv=none; b=F9jnaRCnf0tBTny+BU+O/44bTppj+XULlxTwqHsLA6tRm+DHKpxiofPh+qW2zTHwgvj7J06rDhs+mXJavC6BvsD/zYel382r6QxiSxO6Gdda+uOtZQ34kO/f5OLdScFBVdFT7w+2bd6AnspWSGUpoeK/ECk4MRaFnawI/MDLGTY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771624938; c=relaxed/simple; bh=+TWplxVmvADYMWmiBeKtnOgdg45bWJKpSpSk8iXAv0s=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=mpejNOmZ1MKeGQzj+TMtKPSgMCWOoixCw9Bt1r8noE1cKomheSwqpIic4Eo9mwXlDncoyW2icU1GO9z4+EsFKhrK6fI+oVACSG3m58EtZ/V9/ai4NSRjoSZkmrRm+AX+67rNHJCGtXCh8AEBcCLCRwsXCTojFLigQJbGHnkveIA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HWT8XZeA; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="HWT8XZeA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 52089C116C6; Fri, 20 Feb 2026 22:02:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771624937; bh=+TWplxVmvADYMWmiBeKtnOgdg45bWJKpSpSk8iXAv0s=; h=From:To:Cc:Subject:Date:From; b=HWT8XZeA7h32O4+4VcP73r6j7DSBCsvI/vekrcP9IFrmU1vqTyVgsbc/9Qpil8IY9 qIxL3eEglGtWpvwvKsDLafvadzvA6tU3YDmBhsZg53F3Wj/TTNsqpLUF4mEw3hPGWv YmUKPuODE6p4oIDK8lBksDip7XgIKgiPOHMuuAc4ZnrRBT+d6Lv1JYGqtE9ORcsNLP g8jRw113NoOiBnOzrnl98LlOgDKiynIOaIN9KiY3UQbLzr/qDeNjqowCFgIdHWQYta f0j5zD+u//A7fjHJlwrvWqTfddgeXV6/E0OfVhrn2CIFdPG1DZh+AuqbvW70naiKTi bft0cIVbEkcDg== From: Namhyung Kim To: Paolo Bonzini , Sean Christopherson Cc: LKML , kvm@vger.kernel.org, Dapeng Mi Subject: [PATCH] KVM: VMX: Fix a wrong MSR update in add_atomic_switch_msr() Date: Fri, 20 Feb 2026 14:02:16 -0800 Message-ID: <20260220220216.389475-1-namhyung@kernel.org> X-Mailer: git-send-email 2.53.0.371.g1d285c8824-goog Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 au= to list") Signed-off-by: Namhyung Kim Reviewed-by: Dapeng Mi --- 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 967b58a8ab9d0d47..83d057cfa8164937 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 *vm= x, unsigned msr, } =20 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); } =20 static bool update_transition_efer(struct vcpu_vmx *vmx) --=20 2.53.0.371.g1d285c8824-goog