From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EF66E606A9AA for ; Tue, 10 Nov 2026 11:54:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=MGHXAxjD; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.a=rsa-sha256 header.s=foss header.b=ITjlHVP6 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Unsubscribe-Post: List-Owner; bh=xpa/lg9njdRQQ0b6uyNUAGO+MuLiJ9/osTOM3IJ8JTE=; b=MGHXAxjDNDoarA 6RNnheZZlpNDPODwEIonQe6yWLUISSsG2v3YxoSwuqVsAcD19aLWtnYZEFJdTAA3uRbRwPZ7YJR7q wx8Q31QCm3AP/meCkt0PFdMucZuEcsnkVKlwUItvssEqt6gmKIbpU7zT/HjFO6UqDXyfjloa3DB1T wZSfK3itq4WKrdQ0zlXmQV+VRITYl6sqznrBmzioymxdv28e0OFRHBpRO8zexT2AC0wHBEMeyIxdg BgwwoKP0LOu0fiiOmyLZtb+jQ+xSRMbKCW3FN64bBEvkOjWjF7I0R2Y4w3f4ojLRe8ePTGjV5UKro Vcc2YOKFELPMWjfirMbQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xQkQk-00000003iMm-06Q5; Tue, 10 Nov 2026 11:54:26 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xQkQh-00000003iM2-07h4 for linux-arm-kernel@lists.infradead.org; Tue, 10 Nov 2026 11:54:24 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 35E8A14BF; Tue, 10 Nov 2026 03:54:19 -0800 (PST) Received: from [10.2.197.99] (ewhatever.cambridge.arm.com [10.2.197.99]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B54D43F632; Tue, 10 Nov 2026 03:54:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1794311662; bh=7Pp0tIVrm11vJlC7ulH2AYa6UOT1xWrcSbC9dxxfAhk=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=ITjlHVP6O2P61WozfihQOEfxkHjfXrATDkC42kjSKChCmKg2q0nUsHR3oxlVJY3cN LLUdsVldsb//VjfcccwBi4m+wiy47PufgMctazzoNNB8ZVR7+yT8oCQq92ibtztQcM 0AheKLHynihg17TZo6MF95c97MHoJPUoKOm+qIbU= Message-ID: Date: Tue, 10 Nov 2026 11:54:17 +0000 X-Archived-By: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 00/11] KVM: arm64: CCA: Prepare Realm memory management To: Kohei Enju , Steven Price Cc: kvm@vger.kernel.org, kvmarm@lists.linux.dev, Catalin Marinas , Marc Zyngier , Will Deacon , James Morse , Oliver Upton , Zenghui Yu , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Joey Gouly , Alexandru Elisei , Christoffer Dall , Fuad Tabba , linux-coco@lists.linux.dev, Ganapatrao Kulkarni , Gavin Shan , Shanker Donthineni , Alper Gun , "Aneesh Kumar K . V" , Emi Kisanuki , Vishal Annapurve , WeiLin.Chang@arm.com, Lorenzo Pieralisi References: <20261102141304.126883-1-steven.price@arm.com> Content-Language: en-US From: Suzuki K Poulose In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261110_035423_127489_95F122FF X-CRM114-Status: GOOD ( 16.00 ) X-Spam-Score: -4.4 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-7.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Hi Kohei On 10/11/2026 09:24, Kohei Enju wrote: > On 11/02 14:12, Steven Price wrote: >> This series adds the memory plumbing for CCA building on the basic >> plumbing[1] that has just been merged. >> >> These patches add the internal realm VM state and RMM feature checks, >> prepare realm stage-2 setup and teardown, and provide RTT mapping and >> invalidation helpers. Realm memslots are now contrained to the lower >> half of the IPA space, because faults treat the protected and shared >> halves as aliasing. The final patch then connects these helpers to the >> KVM stage-2 MMU operations. >> >> There's also an integration branch[2] that builds on this series and >> includes the realm descriptor creation, REC entry/exit, activation and >> the new uAPI. This series by itself is also available as a git >> branch[3]. However the new code isn't generally active without the full >> integration branch. >> >> [1] https://lore.kernel.org/all/20261007073537.2454351-1-suzuki.poulose@arm.com/ >> [2] https://gitlab.arm.com/linux-arm/linux-cca >> branch: cca-host-mm/v1/integration > > Hi Steve, thanks for your work on CCA upstreaming. > > For testing purposes, could you clarify which TF-RMM revision (or commit > hash) you tested with? Although this MM series itself doesn't seem to be > particularly sensitive to changes in TF-RMM, testing the integration > branch could be affected by subtle changes in the RMM. Tip of both the repositories should work (tf-a and tf-rmm). Cheers Suzuki > > It would also be useful to know the TF-A revision, if possible. > > Thanks, > Kohei