From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f201.google.com (mail-yw1-f201.google.com [209.85.128.201]) (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 D736F1448FF for ; Fri, 16 Aug 2024 22:04:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723845860; cv=none; b=u1oM6Wcc827EHLdUG5n3Wh4mSoc2Y07aWmUd2xuN+UCY2enFCY1NcgG/trc48jsSK4omXnHS/0q3bbemZyIOZ4ukzTRT8wY4mVaLDIwJhuK0EuQBVTftfUhLiX8AQxrx2gTWaT4aoMuLqVlP4N/2c8IPtNn4wGHj/EKguhN2Efc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723845860; c=relaxed/simple; bh=KW9D5wVU77tNQ3/L82+SRnU+J+FVG21c6UL2U3LRiFQ=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=Qk7DGNSyo6MuPWY25AGsMkG5C5cunaInw0kxMCIieAvB45KfHOS3UtEJbeZWDogDHlURtVNe7PfGRbrjGoG1A6u47z83+gOox/Q4Zp9l7MnhfBfVqbWHafHKbdSlRcClfTs515co09juw725MsNV70UYBPYQ7CobDMjf/j5bVig= 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=lBNIKBTH; arc=none smtp.client-ip=209.85.128.201 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="lBNIKBTH" Received: by mail-yw1-f201.google.com with SMTP id 00721157ae682-6b3825748c2so11792217b3.2 for ; Fri, 16 Aug 2024 15:04:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1723845858; x=1724450658; 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=KW9D5wVU77tNQ3/L82+SRnU+J+FVG21c6UL2U3LRiFQ=; b=lBNIKBTHJ7DidOsalBFxEAycAcM7jaPXzMjoATR5hrBeGGaV9Kghuvd5FRj16yXQUz V9WjlUSlSxNcfjmzxT3ueZnOTuV9oZ1t8k6AonBuoQkPMyYf9T6m8sFO73mjdE8nHHUv EBnpw9Yk2Qxlp7euzzlT+XHPy7MwCjRLz4sztwnnjynt5GlvkUv7lHtmqXY9BwMY78CX HFKXu9Mmqokm1TdhAUmASowna2pec6tig0boDgz5UAbyUPAxXEjU+WvPqmufWK3FcEeX c+B5D1bDxQGQKl+Xhj8YrJJr7+g81BqZbsikODV4HRtMchsALvvNICUY1DdsgJjcXYgG BMLA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723845858; x=1724450658; 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=KW9D5wVU77tNQ3/L82+SRnU+J+FVG21c6UL2U3LRiFQ=; b=cWeBpy+O7tiGVSbOP9tcKVxA64I8Ejj3yy1zOEdgbC2rhShiW/7muik/b/m2zdRW5S 7fqgeFOOQNZTEO2YItM4g01d50D8pw2mW12IX0gE+NeIZcyrpjzkcQ3ybqbCw5x3CmMN Ugn4AJcPm/q2d7tbbyfxTZo3goZDx5khCEshLBoj9i2NIST0GjtMLoJMfy+huYvMJusc Vw9mKe6R8Dmjt6nJIZeXb2+ABKXuH+WMcufern2NMmkRaICRbC84AuQFCCQZvuMRW6z0 NOcJSbJPqDInKrWVcZvw1+N9vrs8qN1zf4ajKITfANfNxX68zkbOIgq0optmulBR5IDM udPg== X-Forwarded-Encrypted: i=1; AJvYcCXbAOhoDgyX2Kjp2bjnKWiOTBMj+ae/yGFl+zvwkN3oDUGeiLiCNGLpFkE8IHAgKQV0X71pXTfy8D/SM/hOhk/T6Umx7FXdltPEQ1/q X-Gm-Message-State: AOJu0YxBQOxHmXh2YgWGj5Li754oI2ORlF5PfgWoWgQQPhgegqY/XeIT 9rCRZtRXF932z+hefzKuy3RYELFVe8TqzyzHkPOFTmYZunQNGcApGqQ93sQughDZ4QzMVTpVOln nfQ== X-Google-Smtp-Source: AGHT+IGiXCTmOHYZrpZ5ro3nY0FBiXL9B2iTr8Z2RNZbiKrDwiWMXpDu7b0F/AQ1zuqdMV5L0qIZpi7Rif8= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a05:690c:3141:b0:6af:623c:7694 with SMTP id 00721157ae682-6b1b213ae21mr1025967b3.0.1723845857802; Fri, 16 Aug 2024 15:04:17 -0700 (PDT) Date: Fri, 16 Aug 2024 15:04:16 -0700 In-Reply-To: <20240815123349.729017-5-mlevitsk@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@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 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.