Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/2202512/?format=api
{ "id": 2202512, "url": "http://patchwork.ozlabs.org/api/patches/2202512/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260227190619.8867-2-mohamed@unpredictable.fr/", "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": "<20260227190619.8867-2-mohamed@unpredictable.fr>", "list_archive_url": null, "date": "2026-02-27T19:06:16", "name": "[1/4] whpx: i386: move whpx_vcpu_kick_out_of_hlt() invocation to interrupt raise time", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "b7e6a48f1a3049028ea5e2dbe6129bd15ef6eaea", "submitter": { "id": 91318, "url": "http://patchwork.ozlabs.org/api/people/91318/?format=api", "name": "Mohamed Mediouni", "email": "mohamed@unpredictable.fr" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260227190619.8867-2-mohamed@unpredictable.fr/mbox/", "series": [ { "id": 493800, "url": "http://patchwork.ozlabs.org/api/series/493800/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=493800", "date": "2026-02-27T19:06:17", "name": "whpx: i386: even more changes", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/493800/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2202512/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2202512/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 (2048-bit key;\n unprotected) header.d=unpredictable.fr header.i=@unpredictable.fr\n header.a=rsa-sha256 header.s=sig1 header.b=beeRE0hz;\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 4fMyWX040Vz1xxV\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 28 Feb 2026 06:07:36 +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 1vw3Af-0003Fs-Np; Fri, 27 Feb 2026 14:06:41 -0500", "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 <mohamed@unpredictable.fr>)\n id 1vw3AW-0003E5-HF\n for qemu-devel@nongnu.org; Fri, 27 Feb 2026 14:06:32 -0500", "from p-west2-cluster3-host9-snip4-9.eps.apple.com ([57.103.69.72]\n helo=outbound.mr.icloud.com)\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <mohamed@unpredictable.fr>)\n id 1vw3AU-0006R2-AY\n for qemu-devel@nongnu.org; Fri, 27 Feb 2026 14:06:31 -0500", "from outbound.mr.icloud.com (unknown [127.0.0.2])\n by p00-icloudmta-asmtp-us-west-2a-100-percent-0 (Postfix) with ESMTPS id\n 25BD718000A6; Fri, 27 Feb 2026 19:06:25 +0000 (UTC)", "from localhost.localdomain (unknown [17.57.152.38])\n by p00-icloudmta-asmtp-us-west-2a-100-percent-0 (Postfix) with ESMTPSA id\n C64161800171; Fri, 27 Feb 2026 19:06:23 +0000 (UTC)" ], "Dkim-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr;\n s=sig1; t=1772219186; x=1774811186;\n bh=4n4xIy8i5xV9kHLwKpAQhwfVxRJH3sNm66Cv+vgl914=;\n h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme;\n b=beeRE0hzMf6oj5ZjM4lMbOqFCOJONdwUBBIjRXcoAHeB+wSRdiFFkkHKP7fyxZ9VxiUfF2a6KOqs3CXOTtRxSufw2RWfrmVjG2fwUS78qagM01eUFabUJuxZMfXo/tmRFPsbz3cIBb/liHZBq3UU7DcnRXZro8LTjU00APbvViAF8ZRDyMrNLZZ+qItzuPvzgSfTYOw1gsKQpBfr2iqkj4fGPltcPdWsGNPr3d4GOpzklqpGxZ4jhM9slYxQChxHkLUKHpPCJhUJryLKQaWmmo4GimuVkXIg5KtI3P2NbTqpDMYW8SOqrjmU7kNzhE/FRYt3Ssyj5ssBo4/xDVXnUQ==", "mail-alias-created-date": "1752046281608", "From": "Mohamed Mediouni <mohamed@unpredictable.fr>", "To": "qemu-devel@nongnu.org", "Cc": "Mohamed Mediouni <mohamed@unpredictable.fr>,\n Pedro Barbuda <pbarbuda@microsoft.com>", "Subject": "[PATCH 1/4] whpx: i386: move whpx_vcpu_kick_out_of_hlt() invocation\n to interrupt raise time", "Date": "Fri, 27 Feb 2026 20:06:16 +0100", "Message-ID": "<20260227190619.8867-2-mohamed@unpredictable.fr>", "X-Mailer": "git-send-email 2.50.1", "In-Reply-To": "<20260227190619.8867-1-mohamed@unpredictable.fr>", "References": "<20260227190619.8867-1-mohamed@unpredictable.fr>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwMjI3MDE2OCBTYWx0ZWRfX5+4bJ0qZxnOm\n NCALgzMTKGkJl0hreC+5JIyAhD33ijcl6UCPs33dSte3qkqoa7xfitsWWRvysMDP8VVFiKj8/sV\n gFUn1WzS6ud/RQktS3h+Hjt7rJVCYqpAVT04uTzoimdruka+/wVIq+y7JSjIRlgyN2tVz3pHQbQ\n KAdkukaY2om0nvOh7FR3kDyVfBjVa4hR9LEvAlkUx83jUuPC5Jg9RRulzVCY0TB5SGDwBZ1hWlm\n N4Odcf3BCWouRqce9ilMr8Z4UnaPsb4X//TmYF+OeUMWp3chTZtAP6WfH358xElZ/8z4i+ZLbHc\n GkSWrUBAhYsrAVxK5E9dLxfxF5GKrQwiICim+6Sa2TgpKwCyGg7KtIiPb6s62I=", "X-Proofpoint-GUID": "wYGUP3lI72CoypRWrWwvwlLaeNNcRrfC", "X-Authority-Info-Out": "v=2.4 cv=RYadyltv c=1 sm=1 tr=0 ts=69a1eb31\n cx=c_apl:c_apl_out:c_pps a=9OgfyREA4BUYbbCgc0Y0oA==:117\n a=9OgfyREA4BUYbbCgc0Y0oA==:17 a=HzLeVaNsDn8A:10 a=VkNPw1HP01LnGYTKEx00:22\n a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=o8I7T96M5UCSVa1h564A:9", "X-Proofpoint-ORIG-GUID": "wYGUP3lI72CoypRWrWwvwlLaeNNcRrfC", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-02-27_03,2026-02-27_03,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=notspam policy=default score=0 malwarescore=0\n clxscore=1030 suspectscore=0 adultscore=0\n mlxlogscore=999 spamscore=0\n bulkscore=0 mlxscore=0 phishscore=0 lowpriorityscore=0 classifier=spam\n authscore=0 adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000\n definitions=main-2602270168", "X-JNJ": "\n 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", "Received-SPF": "pass client-ip=57.103.69.72;\n envelope-from=mohamed@unpredictable.fr; helo=outbound.mr.icloud.com", "X-Spam_score_int": "-9", "X-Spam_score": "-1.0", "X-Spam_bar": "-", "X-Spam_report": "(-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.706,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.401,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no 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": "This fixes the sti followed by hlt kvm_unit_tests.\n\nSigned-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>\n---\n target/i386/whpx/whpx-all.c | 49 ++++++++++++++++---------------------\n 1 file changed, 21 insertions(+), 28 deletions(-)", "diff": "diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c\nindex 6d2771a98a..90f51fc4dd 100644\n--- a/target/i386/whpx/whpx-all.c\n+++ b/target/i386/whpx/whpx-all.c\n@@ -1308,6 +1308,16 @@ static int whpx_handle_halt(CPUState *cpu)\n return ret;\n }\n \n+static void whpx_vcpu_kick_out_of_hlt(CPUState *cpu) \n+{\n+ WHV_REGISTER_VALUE reg;\n+ whpx_get_reg(cpu, WHvRegisterInternalActivityState, ®);\n+ if (reg.InternalActivity.HaltSuspend) {\n+ reg.InternalActivity.HaltSuspend = 0;\n+ whpx_set_reg(cpu, WHvRegisterInternalActivityState, reg);\n+ }\n+}\n+\n static void whpx_vcpu_pre_run(CPUState *cpu)\n {\n HRESULT hr;\n@@ -1391,6 +1401,17 @@ static void whpx_vcpu_pre_run(CPUState *cpu)\n .Vector = irq,\n };\n reg_count += 1;\n+ /* \n+ * When the Hyper-V APIC is enabled, to get out of HLT we\n+ * either have to request an interrupt or manually get it away\n+ * from HLT.\n+ *\n+ * We also manually do inject some interrupts via WHvRegisterPendingEvent\n+ * instead of WHVRequestInterrupt, which does not reset the HLT state.\n+ */\n+ if (whpx_irqchip_in_kernel()) {\n+ whpx_vcpu_kick_out_of_hlt(cpu);\n+ }\n }\n }\n \n@@ -1453,15 +1474,6 @@ static void whpx_vcpu_post_run(CPUState *cpu)\n !vcpu->exit_ctx.VpContext.ExecutionState.InterruptShadow;\n }\n \n-static void whpx_vcpu_kick_out_of_hlt(CPUState *cpu) \n-{\n- WHV_REGISTER_VALUE reg;\n- whpx_get_reg(cpu, WHvRegisterInternalActivityState, ®);\n- if (reg.InternalActivity.HaltSuspend) {\n- reg.InternalActivity.HaltSuspend = 0;\n- whpx_set_reg(cpu, WHvRegisterInternalActivityState, reg);\n- }\n-}\n \n static void whpx_vcpu_process_async_events(CPUState *cpu)\n {\n@@ -1770,25 +1782,6 @@ int whpx_vcpu_run(CPUState *cpu)\n cpu->exception_index = EXCP_INTERRUPT;\n ret = 1;\n }\n- /* \n- * When the Hyper-V APIC is enabled, to get out of HLT we\n- * either have to request an interrupt or manually get it away\n- * from HLT.\n- *\n- * We also manually do inject some interrupts via WHvRegisterPendingEvent\n- * instead of WHVRequestInterrupt, which does not reset the HLT state.\n- *\n- * However, even with this done, if the guest does an HLT without\n- * interrupts enabled (which the test_sti_inhibit KVM unit test does)\n- * then the guest will stay in HLT forever.\n- *\n- * Keep it this way for now, with perhaps adding a heartbeat later\n- * so that we get the CPU time savings from having Hyper-V handle HLT\n- * instead of going away from it as soon as possible.\n- */\n- if (whpx_irqchip_in_kernel()) {\n- whpx_vcpu_kick_out_of_hlt(cpu);\n- }\n break;\n case WHvRunVpExitReasonX64MsrAccess: {\n WHV_REGISTER_VALUE reg_values[3] = {0};\n", "prefixes": [ "1/4" ] }