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GET /api/patches/2215428/?format=api
{ "id": 2215428, "url": "http://patchwork.ozlabs.org/api/patches/2215428/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260324151323.74473-6-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": "<20260324151323.74473-6-mohamed@unpredictable.fr>", "list_archive_url": null, "date": "2026-03-24T15:13:16", "name": "[v3,05/12] whpx: i386: don't restore segment registers after MMIO handling", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "a9411f12756fb833e95cdca6f1e0c373795341a4", "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/20260324151323.74473-6-mohamed@unpredictable.fr/mbox/", "series": [ { "id": 497303, "url": "http://patchwork.ozlabs.org/api/series/497303/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=497303", "date": "2026-03-24T15:13:13", "name": "whpx: i386: Windows 10 and performance fixes", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/497303/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2215428/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2215428/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=Xi8EI4ib;\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, 24 Mar 2026 11:14:38 -0400", "from outbound.st.icloud.com (unknown [127.0.0.2])\n by p00-icloudmta-asmtp-us-east-1a-60-percent-7 (Postfix) with ESMTPS id\n D471618000A3; Tue, 24 Mar 2026 15:14:27 +0000 (UTC)", "from localhost.localdomain (unknown [17.42.251.67])\n by p00-icloudmta-asmtp-us-east-1a-60-percent-7 (Postfix) with ESMTPSA id\n 1C7C91803135; Tue, 24 Mar 2026 15:13:45 +0000 (UTC)" ], "Dkim-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr;\n s=sig1; t=1774365270; x=1776957270;\n bh=uAJ51zR7R15wIVlC530LHyYmi+UTEudXXGcCdwby+0E=;\n h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme;\n b=Xi8EI4ibCqtLsDfRxicfqt0cuC4WlO45WmhfYAdf69vac5IRrzyWPLxANMd2IunQHUPq20JcqBntld4e2JQoJnw5hCEfBarLU/MhnCBCrehEa4Wl+XSVogssfeJNsGGry6+T8vvS0BppJW7f1evzMZewf5IVb9z2hp0Hj4cONDTz5GYmutZsTBFqLKJQy//n3DarvcJqHWmWk9GpY2PBjM0RzacXDM2uTJHoRE+iF4EEgOjzJxuF0dJp1hJHZ0ButxsmiosXKF/GHpOPDlZHU1R60elfIjM6iuUpzfCYpYYEngjqP3YOq9TTq9P+T+lGRoFRoZoZse9nSTOH2fES2g==", "mail-alias-created-date": "1752046281608", "From": "Mohamed Mediouni <mohamed@unpredictable.fr>", "To": "qemu-devel@nongnu.org", "Cc": "Roman Bolshakov <rbolshakov@ddn.com>,\n Mohamed Mediouni <mohamed@unpredictable.fr>, Wei Liu <wei.liu@kernel.org>,\n Phil Dennis-Jordan <phil@philjordan.eu>,\n Pedro Barbuda <pbarbuda@microsoft.com>", "Subject": "[PATCH v3 05/12] whpx: i386: don't restore segment registers after\n MMIO handling", "Date": "Tue, 24 Mar 2026 16:13:16 +0100", "Message-ID": "<20260324151323.74473-6-mohamed@unpredictable.fr>", "X-Mailer": "git-send-email 2.50.1", "In-Reply-To": "<20260324151323.74473-1-mohamed@unpredictable.fr>", "References": "<20260324151323.74473-1-mohamed@unpredictable.fr>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Proofpoint-GUID": "bG_tUR_rnm_VIMF5oAiwCZ2oZRT9PLLn", "X-Authority-Info-Out": "v=2.4 cv=K6Qv3iWI c=1 sm=1 tr=0 ts=69c2aa54\n cx=c_apl:c_pps:t_out a=YrL12D//S6tul8v/L+6tKg==:117\n a=YrL12D//S6tul8v/L+6tKg==:17 a=Yq5XynenixoA:10 a=VkNPw1HP01LnGYTKEx00:22\n a=-4eTQGsHVEe5RITbnwAA:9", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwMzI0MDExOSBTYWx0ZWRfX5zb0LkH7ZmxT\n TmCR/nT1Vbn2IyWxV+w5fq50N7Ln4t+KPR0gMI2OILebCGoJLdlhFm5HVsAt/4RM1Fa8+uicKiq\n ABvg6e4wMkVEms729pEAY1JHmNGBypqwPHZsd/6TRBlwWWzXrIjWvbwx8d5qFtAccaU982FoA4Y\n gojbz3q7rn9uS4kvJAguSLgPp6Mbt+9pVZ1G+z88/+6Zd0adfVr1QGWzUvKTPefpRexYKOv7Naa\n x+cDR5AOgozvRpCo6ZJ+FN4dg/SAlchbJtZQfELQ0Chj+M3B+RWVETM1GXtR7i87iWRi45k889D\n pqqD0Phr39+pmh4/rjctNtgJTPljlNXzQUTnPFo5U3CjYvdzZKns6h/C8i7lMc=", "X-Proofpoint-ORIG-GUID": "bG_tUR_rnm_VIMF5oAiwCZ2oZRT9PLLn", "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=2026-03-24_03,2026-03-23_02,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=notspam policy=default score=0 adultscore=0\n mlxscore=0 suspectscore=0 spamscore=0 lowpriorityscore=0 malwarescore=0\n phishscore=0 mlxlogscore=830 clxscore=1030 bulkscore=0 classifier=spam\n authscore=0 adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000\n definitions=main-2603240119", "Received-SPF": "pass client-ip=57.103.78.84;\n envelope-from=mohamed@unpredictable.fr; helo=outbound.st.icloud.com", "X-Spam_score_int": "-27", "X-Spam_score": "-2.8", "X-Spam_bar": "--", "X-Spam_report": "(-2.8 / 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_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_PASS=-0.001,\n 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": "Signed-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>\n---\n target/i386/whpx/whpx-all.c | 22 ++++++++++++----------\n 1 file changed, 12 insertions(+), 10 deletions(-)", "diff": "diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c\nindex c0c7ba9177..69d141e7cc 100644\n--- a/target/i386/whpx/whpx-all.c\n+++ b/target/i386/whpx/whpx-all.c\n@@ -416,19 +416,21 @@ void whpx_set_registers(CPUState *cpu, WHPXStateLevel level)\n assert(whpx_register_names[idx] == WHvX64RegisterRflags);\n lflags_to_rflags(env);\n vcxt.values[idx++].Reg64 = env->eflags;\n-\n- /* Translate 6+4 segment registers. HV and QEMU order matches */\n assert(idx == WHvX64RegisterEs);\n- for (i = 0; i < 6; i += 1, idx += 1) {\n- vcxt.values[idx].Segment = whpx_seg_q2h(&env->segs[i], v86, r86);\n- }\n \n- assert(idx == WHvX64RegisterLdtr);\n- /*\n- * Skip those registers for synchronisation after MMIO accesses\n- * as they're not going to be modified in that case.\n- */\n if (level > WHPX_LEVEL_FAST_RUNTIME_STATE) {\n+\n+ /* Translate 6+4 segment registers. HV and QEMU order matches */\n+ for (i = 0; i < 6; i += 1, idx += 1) {\n+ vcxt.values[idx].Segment = whpx_seg_q2h(&env->segs[i], v86, r86);\n+ }\n+\n+ assert(idx == WHvX64RegisterLdtr);\n+ /*\n+ * Skip those registers for synchronisation after MMIO accesses\n+ * as they're not going to be modified in that case.\n+ */\n+\n vcxt.values[idx++].Segment = whpx_seg_q2h(&env->ldt, 0, 0);\n \n assert(idx == WHvX64RegisterTr);\n", "prefixes": [ "v3", "05/12" ] }