From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by mx.groups.io with SMTP id smtpd.web11.30963.1674600393088620811 for ; Tue, 24 Jan 2023 14:46:33 -0800 Authentication-Results: mx.groups.io; dkim=fail reason="unable to parse pub key" header.i=@intel.com header.s=intel header.b=T1XU2XEN; spf=pass (domain: intel.com, ip: 192.55.52.115, mailfrom: dave.hansen@intel.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1674600393; x=1706136393; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=VnJ/sPE99jRK8dY6h3JHaHLfAvoSLcl4OXkeAyHZP10=; b=T1XU2XENV8sPGcqLNjVnXezjdgkseKXEmJhpnrdHssIoKIspG88DPse8 glaqSRyFICj4Dn8MhvevqoHyDd7xKT1JiyT9YuLtdGeMF4mGOdZlBqSAU c1ZnGYt96TIIIHuM9Y/k3jzh+ZGHCxb6dXhqEaPDenDwfxzu/VHo3wm6Y IiIf92W7kKy8s7hIItDeaguU21ti5ii7RGAVdrZvSZ1hYegfYFO+1D845 oA1GT+FU5LafhM9BRb3QN0FZ8Az4bN3zDTBpr9yE0bv0bPmEDPpV9RSAI ush1wN5BPy4gUcJDyvbyOBxNLX5RlcLNat76xIJNcExDk5dZ8g7X68LPq g==; X-IronPort-AV: E=McAfee;i="6500,9779,10600"; a="326463383" X-IronPort-AV: E=Sophos;i="5.97,243,1669104000"; d="scan'208";a="326463383" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jan 2023 14:46:32 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10600"; a="991053145" X-IronPort-AV: E=Sophos;i="5.97,243,1669104000"; d="scan'208";a="991053145" Received: from hvanorma-mobl.amr.corp.intel.com (HELO [10.209.71.170]) ([10.209.71.170]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jan 2023 14:46:32 -0800 Message-ID: <76983a6f-0407-155c-0986-dda41f0eddd9@intel.com> Date: Tue, 24 Jan 2023 14:46:32 -0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 Subject: Re: [edk2-devel] [PATCH v9 0/4] Add safe unaccepted memory behavior To: Tom Lendacky , devel@edk2.groups.io, kraxel@redhat.com Cc: dionnaglaze@google.com, dave.hansen@linux.intel.com, Jiewen , "Shutemov, Kirill" References: <16581.1673625639418051810@groups.io> <0918b9db-c949-75ce-a24e-f12f03865938@intel.com> <20230116102801.y3l6xn3gdgregn4k@sirius.home.kraxel.org> From: Dave Hansen In-Reply-To: Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 1/24/23 14:42, Tom Lendacky wrote: >> Fedora has near zero additional patches, so it pretty much depends on >> how mainline merges stuff.  If SEV-SNP or TDX or both will land in an >> upstream release before support for unaccepted memory lands too you'll > > Sorry, just saw this... > > SEV-SNP guest support has already landed upstream and is part of the > 5.19 kernel. So without this interface, anyone using a newer OVMF with a > 5.19 to whatever kernel just before unaccepted memory finally gets > pulled into, would have issues. Also, just to reiterate: my whinging about this has been purely TDX-specific. It's a bit of a shame that things happened in this order, but SEV-SNP does seem to have a legitimate need here, separate from TDX. I'll be quiet now. :)