From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f73.google.com (mail-pj1-f73.google.com [209.85.216.73]) (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 28DAE84A53 for ; Fri, 23 Feb 2024 16:08:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708704506; cv=none; b=nTW4OuJEQaFNk1OgnsAZcjXk0XPrzekCW6ZKx7ngycZeZ+sMnNNIEn2/yO26jmqV2+szfCD4a5jAS+IHbldmGu59WeMeviVqpCG5G9aOZMjymmoILLUFHlsH9kRWvfS17rj8sw4jbirduwKmXyAE+1HfI2ym0bTqYp//ux1uILA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708704506; c=relaxed/simple; bh=2PMjD9iHH3ocbBefw//1TN5JlDlwz5Msjr28jhhqymw=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=Ay3ZdVjdOOGZ28vbI4ArAud+a/HBkkofXbcMgn1LYKAHW6HtNduJf7l5Ewa6Kfzp7YB69/oYrpQlpirQzW7ZOz+ju8oOsmDw/HJ5VYSCh19kOuLYYJeYxOnrYm/AoB6kwB8NmDpaenlzROPQnkN9XnfJu1p2+zIHWxBjfeeQfYY= 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=dWk8Oeyp; arc=none smtp.client-ip=209.85.216.73 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="dWk8Oeyp" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-299662731f0so205373a91.2 for ; Fri, 23 Feb 2024 08:08:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1708704504; x=1709309304; 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=/NLktSsNTI2TQw0/DJtmGZ9UBM2FfO1AcEKluSzavPE=; b=dWk8Oeyp5tiCJYZFuBQNshLJNO3A32T9B1EamHkjVf8KFM9eXrZXirrUfc7Y2nf4cU RwfifSzbd7P8NWTaWMqCEtXffUmEfqHpJD0ToQFgoNCcm8jj8ws8upDmNVemIQdbugb9 2mQ527Skp5TvZzK5m687LE0glJnpqGDgagCtqXbC0HB3uA8XlzpzJCHJiiUTU0toykG9 wni4aPX1JxZpiFz6dkI84FMFxa878d+bUAZHVqD6Lvx51U3mEAHTZ3GIQjbCoNRQvFJk EKv1Pg43awpb52jDvqaU1uCovzhAUBCilVtUkaMILD23azBl5L/X/6StA0Zw5TdSWzmM Ryiw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708704504; x=1709309304; 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=/NLktSsNTI2TQw0/DJtmGZ9UBM2FfO1AcEKluSzavPE=; b=LbsbH7QHzdvPkrptA7MvHPHyU8Y9LgtFEYPa2F3JEUM6YHVettDJxvIVdj2afYpXeG HpKD3jfos3gpgj2pctYRYFwNXc7PK7/lS8GuJWMTde0+pg9ORggry4CNGOkBQe9LU8bR q3kFjwHCUy0oHy7SLb7cBCbjCRZrn5DvA0P9Xblj2AvCKOxsdK0x+bCM51lqDGj4dQq4 FmuvmQsonV/DqniZ2DyxU0cJTZ/14BVHUMtvjiwOVgISWX4F4tUhQ/8nZE3J+p05ibHd 9d7Oqt2/DF1qpk9+UPdaRij4z1r6SuHxtonEs58toJHVJ00SoOF61I8v1jOC852nbQx2 TZLQ== X-Forwarded-Encrypted: i=1; AJvYcCVjwrLlpjYw6f8z23m+AvMOM24wlIwoRhpyhXayApzjREQGqzLkA8PapKOxtLL91BrFiPzyg0yfb+ko0nbd+svSSGbd X-Gm-Message-State: AOJu0YyLQ0HrDb8oFE+hYSxpLFm+v5u6aOLMirftPlXFYPUl3k83Pp60 ax/IQPRoNnW5YZr06yv/Do9/S0/Sibsux/emV7Y9yLBP7UJxEELriHIN6v4pHvDEh86yW15fWi7 UlQ== X-Google-Smtp-Source: AGHT+IHlCSKX3D/08U9DgXj+O49FoqJykL2DTVuXyOPcFje2VkAVkZpw4D1FRULWHx92im0ftmbOMNy9FT0= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a17:90b:1d48:b0:29a:8489:1f05 with SMTP id ok8-20020a17090b1d4800b0029a84891f05mr3149pjb.2.1708704504478; Fri, 23 Feb 2024 08:08:24 -0800 (PST) Date: Fri, 23 Feb 2024 08:08:23 -0800 In-Reply-To: <20240223104009.632194-7-pbonzini@redhat.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240223104009.632194-1-pbonzini@redhat.com> <20240223104009.632194-7-pbonzini@redhat.com> Message-ID: Subject: Re: [PATCH v2 06/11] KVM: SEV: disable DEBUG_SWAP by default From: Sean Christopherson To: Paolo Bonzini Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, michael.roth@amd.com, aik@amd.com Content-Type: text/plain; charset="us-ascii" On Fri, Feb 23, 2024, Paolo Bonzini wrote: > Disable all VMSA features in KVM_SEV_INIT and KVM_SEV_ES_INIT. They are > not actually supported by SEV (a SEV guest does not have a VMSA to which > you can apply features) and they cause unexpected changes in measurement > for SEV-ES. Sorry :-( I've done my best to avoid having to deal with attestation, so it's a bit of a blind spot for me.