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 787543FB0B for ; Wed, 20 Dec 2023 15:37:07 +0000 (UTC) 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="dmgcEirn" Received: by mail-yw1-f201.google.com with SMTP id 00721157ae682-5d12853cb89so79052707b3.3 for ; Wed, 20 Dec 2023 07:37:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1703086626; x=1703691426; 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=koGRJJdk0KHZeqrqMZXxqKWfVpvB14ZXeK4Zc4mq2WY=; b=dmgcEirnq3r3zljfzZHo9+WJzGLuCiw/JfKASBYz5Hjd5yDDnWWqQ3wJgdL3ZzzZL7 3GEHl+QA/SFnNxcRV3B+/yfcVsgOYnunf4rRBR1t7QL70r7KgkmJkAkmyAqV2SJDOggl dY0ybAZaCyyWr8mRzzx+c4uUBX1HWQwkxVyaJ/HtjpC4DOQuKyqjz7s8CyU4Yg+PVbEk oXnXDQxz6Sx1VhfZ5SUByvCJobA+TkGFy1J6bixqzKKcNyNzz9X2+er2Yzd8o9e9COVf 0WoWOIBoWfjNq+4Y74DpqdlmiUqI9Lc7q4IyZZqsh0ZDdB56s387IcznOlY53RMD2VHI /kxQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703086626; x=1703691426; 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=koGRJJdk0KHZeqrqMZXxqKWfVpvB14ZXeK4Zc4mq2WY=; b=D3yaIvHZxNPsAist1WYIXWVNrLeK3PfSgnYqF+vn9wdaZsb2qdC5MGE5dvllMHf30M lkmmbp90CF0zzloho0o1jShjwoVDjlhFkBxUxb7QwhFJEhTtgG+6euWeRGQxAkM9F2pk RzQ4sUjEO3CwFu6zQ+ZVbM96o9EcVappIzP0OZGTbpkac9WxAJ1xda9XkTX846O/4GVq VegDVK+TAcZsCtRyTx0RVrmogYxy7kZJO+DKXPQpIOHYts4hbMyPBmUpc8lB9KKAVlTZ oJw/RgkHam7ccl98HAp4BJ2IJGnKXlIeLmPBuVr4l1W5VuJQI5Y9UCawbjhCbW+AiOqF Lhpg== X-Gm-Message-State: AOJu0YwiUSP9B6DdLqi71WSH8nH1IaX6aVWyfRKHXX9t9fAtim25rog1 ybJnfEoKTNGuwN1VUPbF13owGqVFAV8= X-Google-Smtp-Source: AGHT+IFpcG0k33vH0vJeWL0gSzzw1l89eXIvNtHQuHjv9FZifTN9cz87chLJg476BD4+2C3RuaaQODVqSfs= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a05:690c:dc9:b0:5e5:e1e2:31f with SMTP id db9-20020a05690c0dc900b005e5e1e2031fmr3246466ywb.6.1703086626446; Wed, 20 Dec 2023 07:37:06 -0800 (PST) Date: Wed, 20 Dec 2023 07:37:04 -0800 In-Reply-To: <6cfc6f05-7c43-49d9-8e1a-bfa6e34f6b56@intel.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20231218140543.870234-1-tao1.su@linux.intel.com> <20231218140543.870234-2-tao1.su@linux.intel.com> <6cfc6f05-7c43-49d9-8e1a-bfa6e34f6b56@intel.com> Message-ID: Subject: Re: [PATCH 1/2] x86: KVM: Limit guest physical bits when 5-level EPT is unsupported From: Sean Christopherson To: Xiaoyao Li Cc: Chao Gao , Jim Mattson , Tao Su , kvm@vger.kernel.org, pbonzini@redhat.com, eddie.dong@intel.com, yuan.yao@linux.intel.com, yi1.lai@intel.com, xudong.hao@intel.com, chao.p.peng@intel.com Content-Type: text/plain; charset="us-ascii" On Wed, Dec 20, 2023, Xiaoyao Li wrote: > On 12/19/2023 11:26 PM, Sean Christopherson wrote: > > KVM can simply > > constrain the advertised MAXPHYADDR, no? > > Sean. It looks you agree with this patch (Patch 1) now. Doh, my apologies. I don't think I even got to the code, I reacted to the shortlog, changelog, and to patch 2. I'll re-respond.