From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (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 79B80187550 for ; Tue, 3 Sep 2024 15:31:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725377463; cv=none; b=n690desly5kzvcSN0Le/5I/g29qWNdqNATzZEy7l2GN7r8m9SEdKY2xEozKaUpH6u/AZOpjeJPk6u13s2/XAD81qTf91KxFUqFz7wimHoLiki+9wSQH4S2gdc+9K9C0nK5OkdYx6Bi6bfMaSZThgytyrhy5tsODNz9xP9hcS7A0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725377463; c=relaxed/simple; bh=myZhSHZglPxRmX1LeF9hNvw0WBoOmbw90VRio1gUy/w=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=mDj1JCzsSo/g0gjnloYeMFn4+zJzqoFgueW2jY96ByfTIcF4U0sDtGwdi5fDx7JxSKTc98SvuusK0fWBToIVE/0gssBltQ/ojN7o2JjFadg3l6Ta1TqoNwjmJ3JZG6iiJUcb5V7jakiB3RpNBJqoF9rDAXqQR8AEydPc16AdN5M= 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=GVr/BqKm; arc=none smtp.client-ip=209.85.128.202 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--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="GVr/BqKm" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-6d52d811d1aso48053867b3.1 for ; Tue, 03 Sep 2024 08:31:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1725377461; x=1725982261; 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=9Ec7dmsuyq6MURvKN1Ek/X/vHghIhIMnPsF7++yal6w=; b=GVr/BqKmN+1FjYtqqdksxJxo8K3VG6iBCh5g+P7c1GolUYYGUE5mMN6lrLtOBO/tgn H3yBX30kH8cM+J5KUon5QiXNZ5NLcQSw6fdNPnPJiLGL5AobW27ieHK2s/86ngKQZ/e3 HNTOTR40l2eAn/XVHuUg2YtvvcGKKDs6WwHOlhNJkRx9ACy/RfKypjhCgJOpRQVnOG5w KxmimPRoXgKx5L1iuQvGtBZWXE9KCNtKmZKq4n8fnNxyDLFYZUVF7BxSZIwjekgZ3BdL IDGnALM6fCMDHy7TBinurxpIMyPvGZ1L4MKWOAXzogvTZZNK2lQCkZG8rfg4xFwj81FN OXRQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725377461; x=1725982261; 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=9Ec7dmsuyq6MURvKN1Ek/X/vHghIhIMnPsF7++yal6w=; b=Aa0JkprRb+XD1lFlzxAdfSDZFC9exJNZuL9/gfYaPJ4dFYr/aza7cOJtlt2qOtvdVQ BZjP8XmLe8W4Ya/PhFJAvxCTz3eNK+ZIWKoTGM6z7KVw1bnLsdA9R9lFVJAsCznB4tJh 7yF5iqxo67UO2yD13cO2T+yXJ3bhoQ1Njif5iBom1NX4W4PDCx3qui6IzYvmIz/Itbvq /y/abO918RmmfLrdWyv0+9zZwVLOmJwGOKn5qCGYB1wwXoiiJhLIu7KiD4VNHR6/gl7/ +kFgBUK21SNxSvPkgkK/1mXBEv/FxqmXSJzBdAq1VYC5J+jDab/EXV27AbV9+3Vq/rQL EOUw== X-Forwarded-Encrypted: i=1; AJvYcCWE86iX8VtYBwvybPxGvyxv+4p7iMshD/dddFvhJFetI8ptVI+Sz3rxAt1fM0UXqaHE/i5B3EEk/ZZrvBE=@vger.kernel.org X-Gm-Message-State: AOJu0Yyt394fT8p8L4rupDO46L59hJceLzo+DxPkxRQPJg01wrFAVQki c3UMdLVqYsqMOE6bIi/F8C2xNVlqA57yXuKe9Hftu106uMXRcR8f7c32ygk/rJ55oBE3Ui3evba m7A== X-Google-Smtp-Source: AGHT+IEh9ne8KzfgecVZ/RaL9A4Ue6g6HIetOniUqznNH1pR9H+ZBj1JoJsiAHWXhWwmsoKvuOIyhj4bnjg= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a05:690c:4d02:b0:6d9:d865:46c7 with SMTP id 00721157ae682-6d9d86547dcmr1285427b3.2.1725377461550; Tue, 03 Sep 2024 08:31:01 -0700 (PDT) Date: Tue, 3 Sep 2024 08:30:59 -0700 In-Reply-To: <87jzfutmfc.fsf@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240309010929.1403984-1-seanjc@google.com> <20240309010929.1403984-6-seanjc@google.com> <877cbyuzdn.fsf@redhat.com> <871q26unq8.fsf@redhat.com> <87jzfutmfc.fsf@redhat.com> Message-ID: Subject: Re: [PATCH 5/5] KVM: VMX: Always honor guest PAT on CPUs that support self-snoop From: Sean Christopherson To: Vitaly Kuznetsov Cc: Yan Zhao , Gerd Hoffmann , Paolo Bonzini , kvm@vger.kernel.org, rcu@vger.kernel.org, linux-kernel@vger.kernel.org, Kevin Tian , Yiwei Zhang , Lai Jiangshan , "Paul E. McKenney" , Josh Triplett Content-Type: text/plain; charset="us-ascii" On Mon, Sep 02, 2024, Vitaly Kuznetsov wrote: > FWIW, I use QEMU-9.0 from the same C10S (qemu-kvm-9.0.0-7.el10.x86_64) > but I don't think it matters in this case. My CPU is "Intel(R) Xeon(R) > Silver 4410Y". Has this been reproduced on any other hardware besides SPR? I.e. did we stumble on another hardware issue?