From nobody Tue Feb 10 20:29:37 2026 Received: from mail-pg1-f202.google.com (mail-pg1-f202.google.com [209.85.215.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1C3E21E9B1C for ; Tue, 13 Jan 2026 00:30:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768264239; cv=none; b=oFyvIBlPsyc3Vd4YRqsHy3uC+OgOePgYW8QquhF7pKJvSTRosNgWmFCumXdMieSL0hG1oTgzyEM5WvspMoKezmfWeV3BEqzXfbErtesOGH4S9dGzSc4lNwVluXv0Otn3nydoPhzc1VBT+UxctB8/kTYmSA1rSQJg8yot8Wmj/Ow= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768264239; c=relaxed/simple; bh=Qw7/+Bv+ZJMD1kWAfR4J104CN2SSeKSLv6Ry8RHEadY=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=HFRssbEUasCgf8o6yA4uELGPFgydFcajZ9RyAo+Z+eVApQTtMZtXu9mtd5nJjSI3zkwjIqdNOJRgk4XnelK6GuQKvV2d7tXNGlKDr6ggxp9l/iOuutOnkl7PsU2Y5aPYIo/0Y9ccmL8KhjfXWby9ACgrzbQ5uxxWm/NoF6JTuRU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--jmattson.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=XxyHPfgB; arc=none smtp.client-ip=209.85.215.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--jmattson.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="XxyHPfgB" Received: by mail-pg1-f202.google.com with SMTP id 41be03b00d2f7-c552d1f9eafso5559997a12.0 for ; Mon, 12 Jan 2026 16:30:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1768264237; x=1768869037; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=NJJK++kQXOUcZj8a61efcbFZJy/eWmOFKG52r9Uc6nI=; b=XxyHPfgBIJi7r9yQ/TQJtNm85iewA0WxJFyBUiOm/X2KTne5JRi6W8vM1jPUFmsZhz 74Z2fai4DoJ/rSoQEB5sshAJuLfFbpsJ7GpqNOwKhfH0Css2xj3J0f8ZHZPAZHGyZk7P O1bJHQrK3ETkNeusFyADwPIbxQxJ4PDyM76LRRG0MS/W24aksYWhDPY82f2rXAuNhelf PdJFth4TDaCZinVhEAgoC47A69NHlMNYLnZUDWxpUc8M5JXU4Mc1S+enL/iHUj+O1xkp sypge4SyFEcKR8YxbgLoarOc06HTAHMzmDoTOr0aVpSHoZa7rk76HadGZr9ZD2Zq5oe/ pW7A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768264237; x=1768869037; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=NJJK++kQXOUcZj8a61efcbFZJy/eWmOFKG52r9Uc6nI=; b=IVL6NSbf6mRfqRlxml1YZpRGxdrI1nf3YlVvHF0T2aOvXt4hKdBROZ5mevIwcBBfZv w8bmNWQtHY9XdsR1qRzRke7YOYOd2yukR2UaxfwxGvfxzlsDv1obS9uX7A5cBak+ZJfn r3QBScOZI8n82/j8nN07dfJ4Vb7wFVO8XPM67m9Bdy3OWy9AdQf7HqUws+Cm6fMmkmmI cBWjk+t4QzDMHwluLTlMt8iLWlJ2h3YffrfTBta/2gUKLuVXudCJqaifeMWW8l0HhrAF 9sc4kX1b6oSn3oHoJAt3CIoXD0n1H54MpJonRSekosnUMg2890ofcpWeqEHC+S1YvZMg f/rg== X-Forwarded-Encrypted: i=1; AJvYcCVnDnppEcIVjakKaSVGKcYuk0d8kTE14AJf8d3BFbTBV8oaToHge1r6vgUyKbLV5Y5BRg5w8JbpFvA+4Hs=@vger.kernel.org X-Gm-Message-State: AOJu0YyJHXN3z+f+7KZHWLJo6sPLe0NjI87rchxK+zmxd9R5Hw11vEUA a8qBlX9IJ8KpXHpGy43SP7DHnV33MCl6Xx2jJtDrhZNf7Drl4nSldV7erHAqHzyWC7HwayLwjmn q1oEh01z5+esFFg== X-Google-Smtp-Source: AGHT+IGlqf3uE+IOk+ACZvlvsBJ+IigHxAa28NV4eSMRzjniHzTxU8YuH79977ClSL3jQcvpvl3/eJaX3Kig8Q== X-Received: from pgeh4.prod.google.com ([2002:a05:6a02:53c4:b0:bd9:a349:94c3]) (user=jmattson job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a21:329e:b0:35f:2293:877f with SMTP id adf61e73a8af0-3898f923821mr19441748637.33.1768264237450; Mon, 12 Jan 2026 16:30:37 -0800 (PST) Date: Mon, 12 Jan 2026 16:29:56 -0800 In-Reply-To: <20260113003016.3511895-1-jmattson@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260113003016.3511895-1-jmattson@google.com> X-Mailer: git-send-email 2.52.0.457.g6b5491de43-goog Message-ID: <20260113003016.3511895-2-jmattson@google.com> Subject: [PATCH 01/10] KVM: x86: nSVM: Add g_pat to fields copied by svm_copy_vmrun_state() From: Jim Mattson To: Sean Christopherson , Paolo Bonzini , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Shuah Khan , Joerg Roedel , Avi Kivity , Alexander Graf , "=?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?=" , David Hildenbrand , Cathy Avery , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: Jim Mattson Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The vmcb01 g_pat field holds the value of L1's IA32_PAT MSR. To preserve this value through virtual SMM and serialization, add g_pat to the fields copied by svm_copy_vmrun_state(). Signed-off-by: Jim Mattson --- arch/x86/kvm/svm/nested.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c index f295a41ec659..a0e5bf1aba52 100644 --- a/arch/x86/kvm/svm/nested.c +++ b/arch/x86/kvm/svm/nested.c @@ -1090,6 +1090,7 @@ void svm_copy_vmrun_state(struct vmcb_save_area *to_s= ave, to_save->gdtr =3D from_save->gdtr; to_save->idtr =3D from_save->idtr; to_save->rflags =3D from_save->rflags | X86_EFLAGS_FIXED; + to_save->g_pat =3D from_save->g_pat; to_save->efer =3D from_save->efer; to_save->cr0 =3D from_save->cr0; to_save->cr3 =3D from_save->cr3; --=20 2.52.0.457.g6b5491de43-goog