{"id":2222516,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2222516/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/CAFFE2avrHDKZd5m7j3E3x5=F=pzn-3c9vzGWP3+9-AVPwQng7w@mail.gmail.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.2/projects/14/?format=json","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":"","list_archive_url":null,"date":"2026-04-12T15:17:19","name":"hw/i386/intel_iommu: advertise PT in ECAP, not CAP","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"bb869cb6acb36a30e353c506a43352cdade5db01","submitter":{"id":93124,"url":"http://patchwork.ozlabs.org/api/1.2/people/93124/?format=json","name":"Paulian Bogdan Marinca","email":"paulian@marinca.net"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/CAFFE2avrHDKZd5m7j3E3x5=F=pzn-3c9vzGWP3+9-AVPwQng7w@mail.gmail.com/mbox/","series":[{"id":499612,"url":"http://patchwork.ozlabs.org/api/1.2/series/499612/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499612","date":"2026-04-12T15:17:19","name":"hw/i386/intel_iommu: advertise PT in ECAP, not CAP","version":1,"mbox":"http://patchwork.ozlabs.org/series/499612/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2222516/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2222516/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=marinca-net.20251104.gappssmtp.com\n header.i=@marinca-net.20251104.gappssmtp.com header.a=rsa-sha256\n header.s=20251104 header.b=lHMpku0j;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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Sun, 12 Apr 2026\n 08:17:30 -0700 (PDT)","MIME-Version":"1.0","From":"Paulian Bogdan Marinca ","Date":"Sun, 12 Apr 2026 18:17:19 +0300","X-Gm-Features":"AQROBzAtQHK-VTX8ZbGeVtHt7kxPfbs0qQUnCXVoy1ILI6u83lt_ZPvtMt2s17g","Message-ID":"\n ","Subject":"[PATCH] hw/i386/intel_iommu: advertise PT in ECAP, not CAP","To":"qemu-devel@nongnu.org","Content-Type":"text/plain; charset=\"UTF-8\"","Received-SPF":"none client-ip=2a00:1450:4864:20::235;\n envelope-from=paulian@marinca.net; helo=mail-lj1-x235.google.com","X-Spam_score_int":"-18","X-Spam_score":"-1.9","X-Spam_bar":"-","X-Spam_report":"(-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_NONE=0.001 autolearn=ham autolearn_force=no","X-Spam_action":"no action","X-Mailman-Approved-At":"Sun, 12 Apr 2026 11:31:50 -0400","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"commit acf7e2c93cb3efda0add6fd5f3b5b447e63d6367 (HEAD -> master)\nAuthor: paulian \nDate: Sun Apr 12 18:08:45 2026 +0300\n\n hw/i386/intel_iommu: advertise PT in ECAP, not CAP\n\n Commit c7b2e22bd957 (\"hw/i386/x86-iommu: Remove X86IOMMUState::pt_supported\n field\") made pass-through translation type always supported, but moved\n VTD_ECAP_PT into s->cap in vtd_cap_init().\n\n VTD_ECAP_PT is an ECAP bit, not a CAP bit, and the rest of the VT-d code\n checks it via s->ecap. Advertise PT in s->ecap and stop setting the bit in\n s->cap.\n\n Fixes: c7b2e22bd957 (\"hw/i386/x86-iommu: Remove\nX86IOMMUState::pt_supported field\")\n Signed-off-by: Paulian Marinca ","diff":"diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c\nindex f395fa248c..7b2cead8f8 100644\n--- a/hw/i386/intel_iommu.c\n+++ b/hw/i386/intel_iommu.c\n@@ -4998,7 +4998,7 @@ static void vtd_cap_init(IntelIOMMUState *s)\n {\n X86IOMMUState *x86_iommu = X86_IOMMU_DEVICE(s);\n\n- s->cap = VTD_CAP_FRO | VTD_CAP_NFR | VTD_CAP_ND | VTD_ECAP_PT |\n+ s->cap = VTD_CAP_FRO | VTD_CAP_NFR | VTD_CAP_ND |\n VTD_CAP_MAMV | VTD_CAP_PSI | VTD_CAP_SSLPS | VTD_CAP_DRAIN |\n VTD_CAP_ESRTPS | VTD_CAP_MGAW(s->aw_bits);\n if (x86_iommu->dma_translation) {\n@@ -5009,7 +5009,7 @@ static void vtd_cap_init(IntelIOMMUState *s)\n s->cap |= VTD_CAP_SAGAW_48bit;\n }\n }\n- s->ecap = VTD_ECAP_QI | VTD_ECAP_IRO;\n+ s->ecap = VTD_ECAP_QI | VTD_ECAP_IRO | VTD_ECAP_PT;\n\n if (x86_iommu_ir_supported(x86_iommu)) {\n s->ecap |= VTD_ECAP_IR | VTD_ECAP_MHMV;\n","prefixes":[]}