From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yb1-f171.google.com (mail-yb1-f171.google.com [209.85.219.171]) (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 A511AEA9 for ; Tue, 19 Jul 2022 00:31:56 +0000 (UTC) Received: by mail-yb1-f171.google.com with SMTP id f73so23750891yba.10 for ; Mon, 18 Jul 2022 17:31:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=2lsamAysK+D7t3yFkcKTH1MEIBtg3Azfl3puoX8VWXY=; b=N1Wbe909IAYh0k1c0q3IBpwrF0vkTzYBojcD7NeJU3RTBP0OrIsiUGrpT4h6qpZf3V QDNioz9XC8Lw6egH20udd0+qOkhomryPva44T+r4z2lA6qfIU4I5Mg8K+C4gXTGyqnI8 PaJkgvRSpy7dY3eV9EsscgTCZSVRB9yK9+KDqyVBzAHl7MO+vOkp8oYMiCZG5jeOqATi ItXnvm4JA9a8YY6Rz+vn/NRS5OFaBHdLX2V7ycQLodgUMBJiv64oguOV0wW5asLGQpsa hNL7a8Sz/P584O+kqiTPBOOiNjbUc3zZVYochBrQFUpXJzYhScAP2rwRC4JBqRIxix4f 0PaA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=2lsamAysK+D7t3yFkcKTH1MEIBtg3Azfl3puoX8VWXY=; b=JJK82d+NIIW2eSUthpfiTNIEfsv8HHJy5SgEkNAcrQAHn3rRP7ceZ4H7dSO6nIOnzZ ztQTV2dCqrMVO0x9vYeBUoaAIySeGFXIFhKFtZNc2F4pfn8pstY3LL3LDHlx//MgCV1T dXCwXP7WGjpCbTccqQPMtoXHWNiCNkcwzRZ81/WeXtT0RYwgfrf/oc8WsoBl4RhsGH9C XsoZjsA+P8A9IlCftY8J5mUhcPfpkuS6MPwJLiZ/Uweo5H6WOjKh9WTBbiCetH3d9RLn wbwo5Wm9tXRLjc2pCb7KvS6tdyVTACJ8BDJ81vD/lSIV+NzsafVrU/7HMZY2ZUqo6/0J 6vvA== X-Gm-Message-State: AJIora9Kq9pr8rdDrtrbbP7J6dlfCE1aq1yii9pxMDUf+NSWaPGarcQn ZVtMs4IWc1peHZWBJPKIxpw7JM8jAPFlk5/2EOod/w== X-Google-Smtp-Source: AGRyM1u6jw/9GsvIFrdn5mPqwawQg/dodMYn3j8iTaH/WO8OEZs9/9EuC+uiSYhsKacsWERu9bEQQbbDOA9kVERpeSQ= X-Received: by 2002:a25:868b:0:b0:670:830c:15aa with SMTP id z11-20020a25868b000000b00670830c15aamr40509ybk.297.1658190715594; Mon, 18 Jul 2022 17:31:55 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20220614120231.48165-1-kirill.shutemov@linux.intel.com> <20220627113019.3q62luiay7izhehr@black.fi.intel.com> <20220627122230.7eetepoufd5w3lxd@black.fi.intel.com> <20220627223808.ihgy3epdx6ofll43@black.fi.intel.com> <20220718172159.4vwjzrfthelovcty@black.fi.intel.com> In-Reply-To: From: Dionna Amalie Glaze Date: Mon, 18 Jul 2022 17:31:44 -0700 Message-ID: Subject: Re: [PATCHv7 00/14] mm, x86/cc: Implement support for unaccepted memory To: "Kirill A. Shutemov" Cc: Ard Biesheuvel , Peter Gonda , Borislav Petkov , Andy Lutomirski , Sean Christopherson , Andrew Morton , Joerg Roedel , Andi Kleen , Kuppuswamy Sathyanarayanan , David Rientjes , Vlastimil Babka , Tom Lendacky , Thomas Gleixner , Peter Zijlstra , Paolo Bonzini , Ingo Molnar , Varad Gautam , Dario Faggioli , Dave Hansen , Mike Rapoport , David Hildenbrand , Marcelo Cerri , tim.gardner@canonical.com, Khalid ElMously , philip.cox@canonical.com, "the arch/x86 maintainers" , Linux Memory Management List , linux-coco@lists.linux.dev, linux-efi , LKML , "Yao, Jiewen" Content-Type: text/plain; charset="UTF-8" > > I think we should make it obvious from a kernel image if it supports > > unaccepted memory (with UTS_VERSION or other way). > > Something I didn't address in my previous email: how would the UEFI know where the kernel is to parse this UTS_VERSION out when it's booting a bootloader before Linux gets booted? -- -Dionna Glaze, PhD (she/her)