Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/2231427/?format=api
{ "id": 2231427, "url": "http://patchwork.ozlabs.org/api/patches/2231427/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260430172204.1006673-33-pbonzini@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": "<20260430172204.1006673-33-pbonzini@redhat.com>", "list_archive_url": null, "date": "2026-04-30T17:21:38", "name": "[PULL,32/58] whpx: i386: disable kernel-irqchip on Windows 10 when PIC enabled", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "5b9a2ceceb60f25cafb6173c09d66441a05d7c23", "submitter": { "id": 2701, "url": "http://patchwork.ozlabs.org/api/people/2701/?format=api", "name": "Paolo Bonzini", "email": "pbonzini@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260430172204.1006673-33-pbonzini@redhat.com/mbox/", "series": [ { "id": 502347, "url": "http://patchwork.ozlabs.org/api/series/502347/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=502347", "date": "2026-04-30T17:21:16", "name": "[PULL,01/58] pythondeps: bump to meson 1.11.1", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/502347/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2231427/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2231427/checks/", "tags": {}, "related": [], "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=GLSqN9VJ;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=google header.b=sdL9Z313;\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=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists1p.gnu.org (lists1p.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 4g61KW27Pvz1yHZ\n\tfor <incoming@patchwork.ozlabs.org>; Fri, 01 May 2026 03:25:51 +1000 (AEST)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists1p.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1wIV7f-0006up-HS; Thu, 30 Apr 2026 13:24:23 -0400", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <pbonzini@redhat.com>)\n id 1wIV7C-0005kW-3h\n for qemu-devel@nongnu.org; Thu, 30 Apr 2026 13:24:00 -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 <pbonzini@redhat.com>)\n id 1wIV79-0004iB-Hg\n for qemu-devel@nongnu.org; Thu, 30 Apr 2026 13:23:53 -0400", "from mail-qv1-f72.google.com (mail-qv1-f72.google.com\n [209.85.219.72]) by relay.mimecast.com with ESMTP with STARTTLS\n (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id\n us-mta-154-ql0aXfpxOQKw00v_3JqoWA-1; Thu, 30 Apr 2026 13:23:49 -0400", "by mail-qv1-f72.google.com with SMTP id\n 6a1803df08f44-8ac9609d3d6so29718456d6.0\n for <qemu-devel@nongnu.org>; Thu, 30 Apr 2026 10:23:49 -0700 (PDT)", "from [192.168.10.48] ([151.49.85.67])\n by smtp.gmail.com with ESMTPSA id\n 6a1803df08f44-8b3ff43a465sm22165976d6.28.2026.04.30.10.23.45\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Thu, 30 Apr 2026 10:23:46 -0700 (PDT)" ], "DKIM-Signature": [ "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1777569830;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=p4g0uz/P7j9K70N0flDT+IgeE2GHWNDfoeHg+Js6mkw=;\n b=GLSqN9VJksa2+QFkFxt5Ix5k6739AASRz7MLU7iI2GXcixhBfhd0OES6g1vvqnh6uVUfvh\n 1t0sIdjQD6Bdbd6jNgDWoTfb+uY/LniOgAbfESFeYbxQyYFrw3ngDI2C2VtcZJh8Uo5DGD\n rYqfNxpMtzI5p7KRZJdmwHR7obDB9aw=", "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=redhat.com; s=google; t=1777569828; x=1778174628; darn=nongnu.org;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:from:to:cc:subject:date\n :message-id:reply-to;\n bh=p4g0uz/P7j9K70N0flDT+IgeE2GHWNDfoeHg+Js6mkw=;\n b=sdL9Z313OSJIKfV175x7/cUlA/VrU5Iz84qMqMoPfekF78C+m7Vcf9WI4Utz5y+xRH\n bQtKsnppeG+xEtVt/16qOEQrNcPotfH29gz5rUltQqaizvei317Si7lGuEtJqVm6q1gm\n a3lqQCTU1Fv8/Dv32ULtitS39vBiZmB4GP2JugPWERZ6pd+kUHxvIbapRZ25W2SgJROe\n ryzco6ORZ452137qAa+TO1eL81W/8BvQgq+eEBUIXvmiffcxAAMedtVluu8tW/i6a9bh\n QksjWC+qCLvDU9wHsavyVgIhoej76O9gODrgAy9+ZrHqkd8qoCI9U9in1W4577XxKGDU\n rP5Q==" ], "X-MC-Unique": "ql0aXfpxOQKw00v_3JqoWA-1", "X-Mimecast-MFC-AGG-ID": "ql0aXfpxOQKw00v_3JqoWA_1777569829", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1777569828; x=1778174628;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from\n :to:cc:subject:date:message-id:reply-to;\n bh=p4g0uz/P7j9K70N0flDT+IgeE2GHWNDfoeHg+Js6mkw=;\n b=AzlfWBSfXrQlQG1qPx3IR+qLDJSyfGbNTDtmbPhUEXbI/OPkSWze1O0w3mZ2r+RNMI\n aPKGriLXN+0RgqCKgubuxPhA3oRej20xCGJEhsvM/KYmP66vOYSkBgDy6MoWF32z0LnR\n GMjbswPwBxxrhLdC5bw+E7cvljDQ8FARp15jybpfZUbB2kAL81SMCVOXHBQzTooTf3OO\n WRmAU7yc0ePz2+czowXmfFGx52ppJbHTgcJRFZN6PuZ6/WjfAazxEXkq8V1xAOtSU0TP\n P69lruNEXstIlMWSiI0BZcTrk0GLI4YYKkeF+lA2Sm/ZuPwBO0f1ZVVjAh44RFc2wtwn\n UEfQ==", "X-Gm-Message-State": "AOJu0YwDF2KpgJYwF/GeQg7tzB72QZZqkB7dHNtdWj4MnheFAOsjiGIt\n sOkQqJ/cYCl+VJS0MVBGqnOIDiP/b8b2R/zKVZhzc10Pnr7jVBtdup+MHA+duMUYr2BwA9DldOJ\n GGqbVV5gyWPyJ1JUGHWeIl7lsI1qa/lBBhkQTcGH88UJGMJEOyrHqmxSoJQFIwesxcYg0GJ9zjH\n 0t/WDQZLXY3TA7t8ShglrhjfP1JNjN8ytv/HcMJ45N", "X-Gm-Gg": "AeBDieulKy0gQUvnzdHzNMLizVMAOpLcJXUd1pCLHRcEUQkorYMoxf6uWyZJsXOLzJK\n AvlxCHYElRN2WKT3yvB6NmCQNe3qIXYGhNcv8K6M/4ETqXBoVH8cZismXPjnq4ITwXkdgROEc4n\n rEo5bzwGYSiU9rqbgfh1N9sfMFBJUl0jg/i21en+//XQwe6ugUHh+jC9aUzIWDoaCk0Z6Mhb2t0\n eM9UnHq/9yeE+Xl0DjRWpFxHWdCweDtNG2B1gpB/aDm52ux9KQ0ZPvqzmIo7vhZ6UG1zEpDwnur\n Z4niIS9i6DTFy0NyjVvqOnZ9VdVxDICFhflfKTumC/KDoJ4d7u3ddtYel7+7aJX0a5JeVNqptSO\n HmVpbO40XQ0n6bOxPC3hLBTU2cZQS6IGXlU3wCX1/8M/uCZisxsv2/aMbZeNV5l1BNlaB+WSQ0C\n Zr6JiGFN5MdEIgbvSmSFPhBiAFIjpaZtLOwbs=", "X-Received": [ "by 2002:a05:6214:4608:b0:8b1:f2f6:33b with SMTP id\n 6a1803df08f44-8b3fe7af5dbmr57264646d6.22.1777569828231;\n Thu, 30 Apr 2026 10:23:48 -0700 (PDT)", "by 2002:a05:6214:4608:b0:8b1:f2f6:33b with SMTP id\n 6a1803df08f44-8b3fe7af5dbmr57263826d6.22.1777569827351;\n Thu, 30 Apr 2026 10:23:47 -0700 (PDT)" ], "From": "Paolo Bonzini <pbonzini@redhat.com>", "To": "qemu-devel@nongnu.org", "Cc": "Mohamed Mediouni <mohamed@unpredictable.fr>", "Subject": "[PULL 32/58] whpx: i386: disable kernel-irqchip on Windows 10 when\n PIC enabled", "Date": "Thu, 30 Apr 2026 19:21:38 +0200", "Message-ID": "<20260430172204.1006673-33-pbonzini@redhat.com>", "X-Mailer": "git-send-email 2.54.0", "In-Reply-To": "<20260430172204.1006673-1-pbonzini@redhat.com>", "References": "<20260430172204.1006673-1-pbonzini@redhat.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=170.10.133.124;\n envelope-from=pbonzini@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_H5=0.001, RCVD_IN_MSPIKE_WL=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": "From: Mohamed Mediouni <mohamed@unpredictable.fr>\n\nMove WHvCapabilityCodeProcessorPerfmonFeatures queries\nas that's how we distinguish if on a legacy OS.\n\nNow that Windows guests are booting, disable kernel-irqchip=on\nby default for Windows 10 when the PIC is enabled.\n\nSigned-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>\nLink: https://lore.kernel.org/r/20260422214225.2242-11-mohamed@unpredictable.fr\nSigned-off-by: Paolo Bonzini <pbonzini@redhat.com>\n---\n target/i386/whpx/whpx-all.c | 69 +++++++++++++++++++++----------------\n 1 file changed, 39 insertions(+), 30 deletions(-)", "diff": "diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c\nindex 03c146dfb8c..ab8e97787fe 100644\n--- a/target/i386/whpx/whpx-all.c\n+++ b/target/i386/whpx/whpx-all.c\n@@ -2523,6 +2523,13 @@ int whpx_accel_init(AccelState *as, MachineState *ms)\n 0x80000002, 0x80000003, 0x80000004, 0x80000007, 0x80000008,\n 0x8000000A, 0x80000021, 0x80000022, 0xC0000000, 0xC0000001};\n \n+ X86MachineState *x86ms = X86_MACHINE(ms);\n+ bool pic_enabled = false;\n+\n+ if (x86ms->pic == ON_OFF_AUTO_ON || x86ms->pic == ON_OFF_AUTO_AUTO) {\n+ pic_enabled = true;\n+ }\n+\n whpx = &whpx_global;\n \n if (!init_whp_dispatch()) {\n@@ -2594,6 +2601,35 @@ int whpx_accel_init(AccelState *as, MachineState *ms)\n goto error;\n }\n \n+ /* Enable supported performance monitoring capabilities */\n+ hr = whp_dispatch.WHvGetCapability(\n+ WHvCapabilityCodeProcessorPerfmonFeatures, &perfmon_features,\n+ sizeof(WHV_PROCESSOR_PERFMON_FEATURES), &whpx_cap_size);\n+ /*\n+ * Relying on this is a crutch to maintain Windows 10 support.\n+ *\n+ * WHvCapabilityCodeProcessorPerfmonFeatures and\n+ * WHvPartitionPropertyCodeSyntheticProcessorFeaturesBanks\n+ * are implemented starting from Windows Server 2022 (build 20348).\n+ */\n+ if (FAILED(hr)) {\n+ warn_report(\"WHPX: Failed to get performance \"\n+ \"monitoring features, hr=%08lx\", hr);\n+ is_modern_os = false;\n+ } else {\n+ hr = whp_dispatch.WHvSetPartitionProperty(\n+ whpx->partition,\n+ WHvPartitionPropertyCodeProcessorPerfmonFeatures,\n+ &perfmon_features,\n+ sizeof(WHV_PROCESSOR_PERFMON_FEATURES));\n+ if (FAILED(hr)) {\n+ error_report(\"WHPX: Failed to set performance \"\n+ \"monitoring features, hr=%08lx\", hr);\n+ ret = -EINVAL;\n+ goto error;\n+ }\n+ }\n+\n /*\n * Error out if WHP doesn't support apic emulation and user is requiring\n * it.\n@@ -2606,8 +2642,9 @@ int whpx_accel_init(AccelState *as, MachineState *ms)\n goto error;\n }\n \n- if (whpx->kernel_irqchip_allowed && features.LocalApicEmulation &&\n- whp_dispatch.WHvSetVirtualProcessorInterruptControllerState2) {\n+ if (whpx->kernel_irqchip_allowed && !(whpx_is_legacy_os() && pic_enabled\n+ && !whpx->kernel_irqchip_required) && features.LocalApicEmulation\n+ && whp_dispatch.WHvSetVirtualProcessorInterruptControllerState2) {\n WHV_X64_LOCAL_APIC_EMULATION_MODE mode =\n WHvX64LocalApicEmulationModeX2Apic;\n hr = whp_dispatch.WHvSetPartitionProperty(\n@@ -2669,34 +2706,6 @@ int whpx_accel_init(AccelState *as, MachineState *ms)\n goto error;\n }\n \n- /* Enable supported performance monitoring capabilities */\n- hr = whp_dispatch.WHvGetCapability(\n- WHvCapabilityCodeProcessorPerfmonFeatures, &perfmon_features,\n- sizeof(WHV_PROCESSOR_PERFMON_FEATURES), &whpx_cap_size);\n- /*\n- * Relying on this is a crutch to maintain Windows 10 support.\n- *\n- * WHvCapabilityCodeProcessorPerfmonFeatures and\n- * WHvPartitionPropertyCodeSyntheticProcessorFeaturesBanks\n- * are implemented starting from Windows Server 2022 (build 20348).\n- */\n- if (FAILED(hr)) {\n- warn_report(\"WHPX: Failed to get performance \"\n- \"monitoring features, hr=%08lx\", hr);\n- is_modern_os = false;\n- } else {\n- hr = whp_dispatch.WHvSetPartitionProperty(\n- whpx->partition,\n- WHvPartitionPropertyCodeProcessorPerfmonFeatures,\n- &perfmon_features,\n- sizeof(WHV_PROCESSOR_PERFMON_FEATURES));\n- if (FAILED(hr)) {\n- error_report(\"WHPX: Failed to set performance \"\n- \"monitoring features, hr=%08lx\", hr);\n- ret = -EINVAL;\n- goto error;\n- }\n- }\n \n /* Enable synthetic processor features */\n WHV_SYNTHETIC_PROCESSOR_FEATURES_BANKS synthetic_features;\n", "prefixes": [ "PULL", "32/58" ] }