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GET /api/1.1/patches/2223226/?format=api
{ "id": 2223226, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2223226/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260414182231.18776-7-mohamed@unpredictable.fr/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.1/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": "" }, "msgid": "<20260414182231.18776-7-mohamed@unpredictable.fr>", "date": "2026-04-14T18:22:30", "name": "[6/7] target: i386: HLT type that ignores EFLAGS.IF", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "84702bb1fae36d14aa22e6e9ab321ac3e80fd624", "submitter": { "id": 91318, "url": "http://patchwork.ozlabs.org/api/1.1/people/91318/?format=api", "name": "Mohamed Mediouni", "email": "mohamed@unpredictable.fr" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260414182231.18776-7-mohamed@unpredictable.fr/mbox/", "series": [ { "id": 499883, "url": "http://patchwork.ozlabs.org/api/1.1/series/499883/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499883", "date": "2026-04-14T18:22:24", "name": "whpx: i386: Some more changes", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499883/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2223226/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2223226/checks/", "tags": {}, "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=fW6u+ORi;\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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Tue, 14 Apr 2026 14:22:50 -0400", "from outbound.pv.icloud.com (unknown [127.0.0.2])\n by p00-icloudmta-asmtp-us-west-1a-60-percent-9 (Postfix) with ESMTPS id\n A3A2F1800108; Tue, 14 Apr 2026 18:22:45 +0000 (UTC)", "from localhost.localdomain (unknown [17.56.9.36])\n by p00-icloudmta-asmtp-us-west-1a-60-percent-9 (Postfix) with ESMTPSA id\n F261618013AE; Tue, 14 Apr 2026 18:22:43 +0000 (UTC)" ], "Dkim-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr;\n s=sig1; t=1776190967; x=1778782967;\n bh=tT4F++bSuONbY+c7bgtCCb6QKbPZ19v7x1ehrozqyHo=;\n h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme;\n b=fW6u+ORigS+O6Pk7YAhgz6rsavDy7P3hZ+z1TKixvAGV7T1UdxZuKauL1E9a3NfqjAFMgbGZHjHWpSTwr2fMcvRKWcfE8PJIHl8wwl1kHuiL1v2ImET/hXR8A1uABVoOvXZCL68eNvhPjuYq/++ukRyP3G+a16yzmJSEFsR446ajJYuF+/JGX1YffVPoi1S1SyUGMyqH5yIQlp0MGyXKL3c9Rgu9sNMO6Z8WCckbx27nXJMpmvHYhocIh6BEsUGll3lDAsFTRRZXzHuRJISB5DbCZJc1UVGAYqwkWA4XWOd0YOgUWTHU8ZeVzLHFqipeJQhK/h+XO2hhlXCbHWROhw==", "mail-alias-created-date": "1752046281608", "From": "Mohamed Mediouni <mohamed@unpredictable.fr>", "To": "qemu-devel@nongnu.org", "Cc": "Pedro Barbuda <pbarbuda@microsoft.com>,\n Mohamed Mediouni <mohamed@unpredictable.fr>,\n Zhao Liu <zhao1.liu@intel.com>, Paolo Bonzini <pbonzini@redhat.com>", "Subject": "[PATCH 6/7] target: i386: HLT type that ignores EFLAGS.IF", "Date": "Tue, 14 Apr 2026 20:22:30 +0200", "Message-ID": "<20260414182231.18776-7-mohamed@unpredictable.fr>", "X-Mailer": "git-send-email 2.50.1", "In-Reply-To": "<20260414182231.18776-1-mohamed@unpredictable.fr>", "References": "<20260414182231.18776-1-mohamed@unpredictable.fr>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDE0MDE3MSBTYWx0ZWRfX5/ls1LiVJwEh\n 7F6c4jtssZKWOWA3UnyNXtmwc1ygtBe6nZaBjAOi2JwjYdZnWhVMok4FTUQ2AIRELYnDQDJtZju\n 3XtcioRKTyRnU2Ku9onGxf9zO5ss5E+YGB62m2W1OXZDAEGcHxN97syCHwnfJyWdyKGBSgARPCx\n aSOBRT/wtcyhAm2PPfN1m5FoWFBwNRWEIS1/EBCsPIqIC9K3o+IeKd3Xa8m41G1zhv8qeZSQRKd\n Tnr94MDHtHmog3n/bKp852mghUzmqARkuOBLaWmHKwMqbsthDjXn5RCwTSbIDcndnR//rnL0ig/\n P06adoeVJhYi0nOSzFit1xeV6u7AHHq4ixA3LHjKiDC5YAfI2bDeXiwMOMAjsA=", "X-Authority-Info-Out": "v=2.4 cv=KJ1XzVFo c=1 sm=1 tr=0 ts=69de85f6\n cx=c_apl:c_pps:t_out a=azHRBMxVc17uSn+fyuI/eg==:117\n a=azHRBMxVc17uSn+fyuI/eg==:17 a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22\n a=ZtXhj7NgbhMgH__AbsQA:9", "X-Proofpoint-GUID": "H12iFphNauZtdUD9oA64BRiLR7IOtK4E", "X-Proofpoint-ORIG-GUID": "H12iFphNauZtdUD9oA64BRiLR7IOtK4E", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-14_03,2026-04-13_04,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=notspam policy=default score=0 adultscore=0\n suspectscore=0 bulkscore=0 lowpriorityscore=0 clxscore=1030 mlxlogscore=937\n spamscore=0 phishscore=0 malwarescore=0 mlxscore=0 classifier=spam\n authscore=0 adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000\n definitions=main-2604140171", "Received-SPF": "pass client-ip=57.103.66.248;\n envelope-from=mohamed@unpredictable.fr; helo=outbound.pv.icloud.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, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\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 TLFS says:\n\n> A partition which possesses the AccessGuestIdleMsr privilege may trigger\n> entry into the virtual processor idle sleep state through a read to the\n> hypervisor-defined MSR HV_X64_MSR_GUEST_IDLE. The virtual processor will\n> be woken when an interrupt arrives, regardless of whether the interrupt\n> is enabled on the virtual processor or not.\n\nMeanwhile, Windows 24H2+ calls this MSR anyway without the privilege being set.\n\nAdd the infrastructure to support it on the generic QEMU side.\n\nSigned-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>\n---\n target/i386/cpu.c | 10 ++++++----\n target/i386/cpu.h | 2 ++\n 2 files changed, 8 insertions(+), 4 deletions(-)", "diff": "diff --git a/target/i386/cpu.c b/target/i386/cpu.c\nindex 0000093fa3..b18e40666e 100644\n--- a/target/i386/cpu.c\n+++ b/target/i386/cpu.c\n@@ -10482,13 +10482,15 @@ int x86_cpu_pending_interrupt(CPUState *cs, int interrupt_request)\n (((env->hflags2 & HF2_VINTR_MASK) &&\n (env->hflags2 & HF2_HIF_MASK)) ||\n (!(env->hflags2 & HF2_VINTR_MASK) &&\n- (env->eflags & IF_MASK &&\n- !(env->hflags & HF_INHIBIT_IRQ_MASK))))) {\n+ ((env->eflags & IF_MASK &&\n+ !(env->hflags & HF_INHIBIT_IRQ_MASK))\n+ || env->hflags2 & HF2_HYPERV_HLT_MASK)))) {\n return CPU_INTERRUPT_HARD;\n } else if (env->hflags2 & HF2_VGIF_MASK) {\n if((interrupt_request & CPU_INTERRUPT_VIRQ) &&\n- (env->eflags & IF_MASK) &&\n- !(env->hflags & HF_INHIBIT_IRQ_MASK)) {\n+ ((env->eflags & IF_MASK &&\n+ !(env->hflags & HF_INHIBIT_IRQ_MASK))\n+ || env->hflags2 & HF2_HYPERV_HLT_MASK)) {\n return CPU_INTERRUPT_VIRQ;\n }\n }\ndiff --git a/target/i386/cpu.h b/target/i386/cpu.h\nindex 0b539155c4..67f508dc10 100644\n--- a/target/i386/cpu.h\n+++ b/target/i386/cpu.h\n@@ -225,6 +225,7 @@ typedef enum X86Seg {\n #define HF2_NPT_SHIFT 6 /* Nested Paging enabled */\n #define HF2_IGNNE_SHIFT 7 /* Ignore CR0.NE=0 */\n #define HF2_VGIF_SHIFT 8 /* Can take VIRQ*/\n+#define HF2_HYPERV_HLT_SHIFT 9 /* Hyper-V HV_X64_MSR_GUEST_IDLE */\n \n #define HF2_GIF_MASK (1 << HF2_GIF_SHIFT)\n #define HF2_HIF_MASK (1 << HF2_HIF_SHIFT)\n@@ -235,6 +236,7 @@ typedef enum X86Seg {\n #define HF2_NPT_MASK (1 << HF2_NPT_SHIFT)\n #define HF2_IGNNE_MASK (1 << HF2_IGNNE_SHIFT)\n #define HF2_VGIF_MASK (1 << HF2_VGIF_SHIFT)\n+#define HF2_HYPERV_HLT_MASK (1 << HF2_HYPERV_HLT_SHIFT)\n \n #define CR0_PE_SHIFT 0\n #define CR0_MP_SHIFT 1\n", "prefixes": [ "6/7" ] }