From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f201.google.com (mail-pg1-f201.google.com [209.85.215.201]) (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 37F6218D for ; Sat, 24 Jun 2023 00:09:27 +0000 (UTC) Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-53fd224ad48so726771a12.2 for ; Fri, 23 Jun 2023 17:09:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1687565367; x=1690157367; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=6LvkJneBy3/YMbwKk609UgSQMNaHvxDfIWkehlJrEmg=; b=znEFkvugMo4sImCFfgS2qwCOLArcMdjXNcjLgHOhMC9xIU3DvkzpkMCW6uGVJRd6Ju g76vDmwk2C3WSAvIWBDrFYrqVe7JL5hI1Mf333G2jyuGDEvWJ3vhYX8pH1syinbdfDFh hbRo4fkBW9WO0wrevYIRn8bU13AZJFHNrhgm9cz26iwq/UtFXuP7fBHX/Uq1dgsTslxR 9vLiVWcHcP/15wxXU65k3wQ7ne+ORwPRg2o4zVmdcaNjAcndf6ggLs+lIUvj84zgWTyR 3YTZOyatvBcMtxPQpri0htvOeEZ0rsKid9MVUg672KjGfmiUq1Y501qF79MyFBZ4gbxp QEAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687565367; x=1690157367; 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=6LvkJneBy3/YMbwKk609UgSQMNaHvxDfIWkehlJrEmg=; b=Xyv24ekdW2vvwdtiMnvN2qw2j9y+zfB5LTPNYUGl2uJTWcXxAdxj5UzcGwKK+KQMMX dJtbcEDyl32jcpl3QtWYjhrlvDyjy8sGfgBgAv5CjyqljnkpcVk42IJa2tnIGhZcC5sL vkDLI4CS2Rj+Yf8RRwpn8mXv0XYuOhOJ+Uww9WIw3y2iicQlEz4Bz+9DrgUh//ydHd5N suc38IqSCiYZofDfIJXIvT4qiWTU4hmdbZHsaWYnvAgwV4vzU25H/KcJNP3t9TUn34wZ fjFxNDORP3K7nBAdKhgkHpKyO6g3XSZevGkjo5R/T/XAPmo9wK7gM/qZ6bHJtCEICbQp jT1g== X-Gm-Message-State: AC+VfDxGc7OS01ogi0/PWRON1l9ydWDVbCiAkb54+C1s0gPmzZBdbFYG qMowk3glZhUGRyatuLmS0ELkpaoUFlU= X-Google-Smtp-Source: ACHHUZ7GYqhOn7bHUyi6+FrThgCMRPif8Rtwe80QIDWA0IpGY9LZNVqsPFDUF3IV6HL7i3Z8DDrWsIB9vyo= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a63:2f42:0:b0:53f:7713:5e0e with SMTP id v63-20020a632f42000000b0053f77135e0emr2662006pgv.5.1687565367474; Fri, 23 Jun 2023 17:09:27 -0700 (PDT) Date: Fri, 23 Jun 2023 17:09:26 -0700 In-Reply-To: Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: Message-ID: Subject: Re: [RFC PATCH 0/6] KVM: guest memory: Misc enhacnement From: Sean Christopherson To: isaku.yamahata@intel.com Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, isaku.yamahata@gmail.com, Paolo Bonzini , erdemaktas@google.com, Sagi Shahar , David Matlack , Kai Huang , Zhi Wang , chen.bo@intel.com, linux-coco@lists.linux.dev, Chao Peng , Ackerley Tng , Vishal Annapurve , Michael Roth Content-Type: text/plain; charset="us-ascii" On Thu, Jun 15, 2023, isaku.yamahata@intel.com wrote: > * VM type: Now we have KVM_X86_PROTECTED_VM. How do we proceed? > - Keep KVM_X86_PROTECTED_VM for its use. Introduce KVM_X86_TDX_VM > - Use KVM_X86_PROTECTED_VM for TDX. (If necessary, introduce another type in > the future) How would KVM differentiate between software-protected VMs and TDX VMs if we go with this option? > - any other way?