From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f201.google.com (mail-pl1-f201.google.com [209.85.214.201]) (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 850D8161 for ; Sat, 24 Aug 2024 00:07:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724458042; cv=none; b=nd/bNvx5U48ggn5gtZqIYGxe2pPNtDO7lTe6X/dqMK/gArDcaRYxx7Bz0+9bHHCx6zb2Vm0oJKlD1Fq67YSzAE4WWRM09/XWJJqu0bVZS9ZjeaOWul4zhaKtVoZZXGfP/9BY3uSo2RXHFnZAr+/oekyOo0ITF8AwnHzgbzET7Fk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724458042; c=relaxed/simple; bh=UxLc+reGhnIYZ/XmNZ/MTTNcsHGvZUf9GNv+aLMVeRY=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=BA96hC4FEZGlcQ0tWZ7FUW67Frhi00Q6Cxzr+u7niHeA8AqhdafUILQoei0n3/OhC3dKMkXXVINeWlRl5ud0ATNHpEY60uERjg8VSNtwFr8CZvKoeFJalMdg9L16Z2GVsZmFQ3T45/5R8ArZ8u1CJ0xd5EaoNdBei7N16hBihio= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=lrJv3Enc; arc=none smtp.client-ip=209.85.214.201 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--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="lrJv3Enc" Received: by mail-pl1-f201.google.com with SMTP id d9443c01a7336-1fd9a0efe4eso27085545ad.0 for ; Fri, 23 Aug 2024 17:07:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1724458041; x=1725062841; 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=cl0NP/cfexcLY+3i5gFKc8CW6ky57wXGpDj5wl38pcY=; b=lrJv3Enc1xWNqErK6kk9TrfrxgYgsJQ5kWAGAD4fYIL+4qPgXTPEpE7e6QZ4sxCIFS fGq0PONX1YfFRbp/+G5E7vBN/evZs3n+Fy0wfZF8GQrNkwyFMeYrZcCUPhkOFw/Ftpz/ LejQZMsWnIA66pchZD1nK2lXG+1985rsDURp9QGC2KF5uUg1RgtqmkLZBcfHp63wHKDx ncB6Fy1VSkKCPiGIPcOe9BRy+g0Pp6rFa45DPhzTOXo5DBJO/uVy3TOddonHb5lkRzF3 2En2/B+vTz/BRoTZewvV2ygTefr63FRVSxHOYsTqtbYl2pH9Li0Ba73QmtHx1MwMz6rn fxcg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724458041; x=1725062841; 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=cl0NP/cfexcLY+3i5gFKc8CW6ky57wXGpDj5wl38pcY=; b=k7pPwUuQmYRBke75F145ciwQ0nj14eiuCGaX26OkiziNmlfLNlk35U8JMKzhn1ioNs 6oGbACmpcqBRSQg35umwv/K4mO0gVHF8F+E0G59OSF4U3RHStr3wpS/iQrNAfkq+uXNO rW9OrFCJugphWhwiKoAzQNdPILfMyxQLlAFS9Irr/JNbDrT5onT5L/j6Jq0kNT4EEAUg phz9LL+lBEZVBJNaOnLOKHi9OXGdYg1bUFulji2UddumU3Lk//kfWJheNJ2HIP4EMc0u MGqSwrs8tbqUfv+cepphAt3+HvS3FXq+0ELi+/zvtZr9qaogc+wx2zrovn1b3CnQXWUy jZwQ== X-Gm-Message-State: AOJu0YxQyM7SwmX/pCUUCNLncNbqHeBly/zTn5UtIxhGawO/ousKuwGZ NkVIFRDtycOFD47RTGj3DxBuHz6VWXcgjNrSuCX4l9kDcfvaIrj/6noTf9544/7FeCYB8iPC0P9 eTw== X-Google-Smtp-Source: AGHT+IEm1MG0noaQz6f9egaj2JTStGrKDvJgtPOeJ9adqBSydYJilv9O6/dOicg7d/F+0wqnqZBXruBF3sk= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a17:902:c40e:b0:200:86f4:fa1b with SMTP id d9443c01a7336-2039e4a7403mr3085345ad.4.1724458040544; Fri, 23 Aug 2024 17:07:20 -0700 (PDT) Date: Fri, 23 Aug 2024 17:07:19 -0700 In-Reply-To: Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240815123349.729017-1-mlevitsk@redhat.com> <20240815123349.729017-5-mlevitsk@redhat.com> Message-ID: Subject: Re: [PATCH v3 4/4] KVM: SVM: fix emulation of msr reads/writes of MSR_FS_BASE and MSR_GS_BASE From: Sean Christopherson To: Maxim Levitsky Cc: kvm@vger.kernel.org, Ingo Molnar , x86@kernel.org, Paolo Bonzini , Thomas Gleixner , Dave Hansen , Borislav Petkov , linux-kernel@vger.kernel.org, "H. Peter Anvin" Content-Type: text/plain; charset="us-ascii" On Fri, Aug 16, 2024, Sean Christopherson wrote: > On Thu, Aug 15, 2024, Maxim Levitsky wrote: > > If these msrs are read by the emulator (e.g due to 'force emulation' > > prefix), SVM code currently fails to extract the corresponding segment > > bases, and return them to the emulator. > > I'll apply this one for 6.11 and tag it for stable, i.e. no need to include this > patch in v4. I appear to have missed my normal "thank you" for this, so here it is, in kvm-x86 fixes: [1/4] KVM: SVM: fix emulation of msr reads/writes of MSR_FS_BASE and MSR_GS_BASE https://github.com/kvm-x86/linux/commit/dad1613e0533