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{ "id": 2216943, "url": "http://patchwork.ozlabs.org/api/covers/2216943/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260327-tpm-tis-sysbus-ppi-v2-0-d8ec84d25dbc@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260327-tpm-tis-sysbus-ppi-v2-0-d8ec84d25dbc@redhat.com>", "list_archive_url": null, "date": "2026-03-27T11:48:21", "name": "[v2,0/3] hw/tpm: add PPI support to tpm-tis-device on ARM64 virt", "submitter": { "id": 92626, "url": "http://patchwork.ozlabs.org/api/people/92626/?format=api", "name": "Mohammadfaiz Bawa", "email": "mbawa@redhat.com" }, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260327-tpm-tis-sysbus-ppi-v2-0-d8ec84d25dbc@redhat.com/mbox/", "series": [ { "id": 497755, "url": "http://patchwork.ozlabs.org/api/series/497755/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=497755", "date": "2026-03-27T11:48:21", "name": "hw/tpm: add PPI support to tpm-tis-device on ARM64 virt", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/497755/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2216943/comments/", "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=Ml1LYOJD;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fhzSf4yRyz1y1x\n\tfor <incoming@patchwork.ozlabs.org>; Fri, 27 Mar 2026 22:49:06 +1100 (AEDT)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1w65gK-0006ru-K5; Fri, 27 Mar 2026 07:48:53 -0400", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <mbawa@redhat.com>) id 1w65gE-0006pu-P7\n for qemu-devel@nongnu.org; Fri, 27 Mar 2026 07:48:49 -0400", "from us-smtp-delivery-124.mimecast.com ([170.10.133.124])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <mbawa@redhat.com>) id 1w65gD-0000MJ-0V\n for qemu-devel@nongnu.org; Fri, 27 Mar 2026 07:48:46 -0400", "from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com\n (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by\n relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3,\n cipher=TLS_AES_256_GCM_SHA384) id us-mta-450-zbAWsZbtO9ydtA8XHEmXww-1; Fri,\n 27 Mar 2026 07:48:40 -0400", "from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com\n (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n (No client certificate requested)\n by mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS\n id 72323195608B; Fri, 27 Mar 2026 11:48:38 +0000 (UTC)", "from mbawa-thinkpadt14gen5.bengluru.csb (unknown [10.74.88.10])\n by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP\n id 8869219560B1; Fri, 27 Mar 2026 11:48:32 +0000 (UTC)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1774612123;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding;\n bh=R+UShz0ocf2lXLj47f99T6mQvINGjIfIkVdm8+t1xMQ=;\n b=Ml1LYOJDwSYm+tr6irTPvo8Cxp78CWx1StIwVH+hBH61VmGX85owD2d4kqX1Eg9mBpGPqN\n MoDXSk6puWpriHHydeUiRjJjteB8ykqZMMjoBfZ/say/tjgXPAfxAe98B6rYthmKUY2TMT\n sbEA6AxLiK6FmsUrSolRP6V/stNWBIc=", "X-MC-Unique": "zbAWsZbtO9ydtA8XHEmXww-1", "X-Mimecast-MFC-AGG-ID": "zbAWsZbtO9ydtA8XHEmXww_1774612118", "From": "Mohammadfaiz Bawa <mbawa@redhat.com>", "To": "qemu-devel@nongnu.org", "Cc": "stefanb@linux.vnet.ibm.com, pierrick.bouvier@linaro.org,\n \"Michael S . Tsirkin\" <mst@redhat.com>, imammedo@redhat.com,\n anisinha@redhat.com, peter.maydell@linaro.org, shannon.zhaosl@gmail.com,\n qemu-arm@nongnu.org, mohamed@unpredictable.fr,\n Mohammadfaiz Bawa <mbawa@redhat.com>", "Subject": "[PATCH v2 0/3] hw/tpm: add PPI support to tpm-tis-device on ARM64\n virt", "Date": "Fri, 27 Mar 2026 17:18:21 +0530", "Message-ID": "<20260327-tpm-tis-sysbus-ppi-v2-0-d8ec84d25dbc@redhat.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "X-Change-ID": "20260324-tpm-tis-sysbus-ppi-ef31a7d71753", "Content-Transfer-Encoding": "8bit", "X-Scanned-By": "MIMEDefang 3.0 on 10.30.177.12", "Received-SPF": "pass client-ip=170.10.133.124; envelope-from=mbawa@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "The ARM virt machine's tpm-tis-device lacks Physical Presence Interface\n(PPI) support - no _DSM, _STA, or PPI operation regions in the ACPI\nnamespace. This causes Windows 11 ARM64 guests to log Event ID 15\n(tpm.sys) errors per boot.\n\nThis series documents the change, refactors tpm_build_ppi_acpi() to\naccept a dynamic PPI base address, then wires up PPI MMIO and ACPI\non tpm-tis-sysbus via the platform bus.\n\nTested: aarch64 KVM, upstream QEMU, Win11 ARM64 25H2, swtpm.\nEvent ID 15 eliminated.\n\nChanges in v2:\n- Moved tpm.rst documentation hunk from patch 3 into patch 1 (Stefan)\n- Added Reviewed-by tags\n\nSigned-off-by: Mohammadfaiz Bawa <mbawa@redhat.com>\n---\nMohammadfaiz Bawa (3):\n docs/specs/tpm: document PPI support on ARM64 virt\n hw/acpi/tpm: parameterize PPI base address in tpm_build_ppi_acpi\n hw/tpm: add PPI support to tpm-tis-device for ARM64 virt\n\n docs/specs/tpm.rst | 24 ++++++++++++++++++++++++\n hw/acpi/tpm.c | 8 ++++----\n hw/arm/virt-acpi-build.c | 9 ++++++++-\n hw/tpm/tpm_tis_isa.c | 2 +-\n hw/tpm/tpm_tis_sysbus.c | 11 +++++++++++\n include/hw/acpi/tpm.h | 3 ++-\n 6 files changed, 50 insertions(+), 7 deletions(-)\n---\nbase-commit: 8e711856d7639cbffa51405f2cc2366e3d9e3a23\nchange-id: 20260324-tpm-tis-sysbus-ppi-ef31a7d71753\n\nBest regards," }