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X-CSE-ConnectionGUID: IwreOj+eT4ylfssnsbghbQ== X-CSE-MsgGUID: HA7/fLhER4i9VN8aon/RDw== X-IronPort-AV: E=McAfee;i="6800,10657,11867"; a="97251149" X-IronPort-AV: E=Sophos;i="6.25,209,1779174000"; d="scan'208";a="97251149" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Aug 2026 13:56:51 -0700 X-CSE-ConnectionGUID: A0CDQx6fSkq36X4DXeKrlw== X-CSE-MsgGUID: esdOXU/eQ7i1bUwMXTZ3cg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,209,1779174000"; d="scan'208";a="262836533" Received: from sghuge-mobl2.amr.corp.intel.com (HELO [10.125.109.157]) ([10.125.109.157]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Aug 2026 13:56:50 -0700 Message-ID: <73c0e29f-3164-4294-a18b-0e07bb958d17@intel.com> Date: Thu, 6 Aug 2026 13:56:50 -0700 Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v9 04/11] x86/virt/tdx: Allocate refcounts for Dynamic PAMT memory To: Rick Edgecombe , bp@alien8.de, hpa@zytor.com, kas@kernel.org, kvm@vger.kernel.org, linux-coco@lists.linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, nik.borisov@suse.com, pbonzini@redhat.com, seanjc@google.com, tglx@kernel.org, vannapurve@google.com, x86@kernel.org, chao.gao@intel.com, yan.y.zhao@intel.com, kai.huang@intel.com, tony.lindgren@linux.intel.com, binbin.wu@intel.com, sohil.mehta@intel.com Cc: Hongyu Ning , Binbin Wu References: <20260806020850.1221381-1-rick.p.edgecombe@intel.com> <20260806020850.1221381-5-rick.p.edgecombe@intel.com> Content-Language: en-US From: Dave Hansen Autocrypt: addr=dave.hansen@intel.com; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 8/5/26 19:08, Rick Edgecombe wrote: > + * Allocate PAMT reference counters for all physical memory. Nit for all of these: This has *ZERO* to do with the "PAMT", which is an ancient TDX concept. This new gunk is 100% for *dynamic* PAMT. Could we please be clear about that universally? I think just saying "DPAMT" in most cases this says "PAMT" will help.