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{ "id": 2223216, "url": "http://patchwork.ozlabs.org/api/covers/2223216/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260414182231.18776-1-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": "<20260414182231.18776-1-mohamed@unpredictable.fr>", "list_archive_url": null, "date": "2026-04-14T18:22:24", "name": "[0/7] whpx: i386: Some more changes", "submitter": { "id": 91318, "url": "http://patchwork.ozlabs.org/api/people/91318/?format=api", "name": "Mohamed Mediouni", "email": "mohamed@unpredictable.fr" }, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260414182231.18776-1-mohamed@unpredictable.fr/mbox/", "series": [ { "id": 499883, "url": "http://patchwork.ozlabs.org/api/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/covers/2223216/comments/", "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=edyM3tzp;\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 14:22:45 -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 50A6118017A6; Tue, 14 Apr 2026 18:22:36 +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 5D0BF18001DB; Tue, 14 Apr 2026 18:22:34 +0000 (UTC)" ], "Dkim-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr;\n s=sig1; t=1776190958; x=1778782958;\n bh=NVxxxPHNZR19YqKhkbdqecMHsddaxqh7WDU8dhWlP/E=;\n h=From:To:Subject:Date:Message-ID:Content-Type:MIME-Version:x-icloud-hme;\n b=edyM3tzpj3gn4dYwFy+YWDiVA3KO53py0CsHh9BiQxXYKxmn1sMtkIqDdIITVEJ/t3FSqG6EPzHLgIRA4T3R5GhBwX372MMZaCIpCZPMBIL7lXeVRat4Hvc6fzfpOOaSCe6OAf+JyvE0GDhGU4iyoIn1hm9GCVhI6ZrPcgEcaNi7YvcaC9xRBm8J79ty1p9oViAINqgAVNnnKAy5dHdFYN1XaHy/Q3FFlvfqytMXIcg9E60x9INdOhWRVHmvJByMcwEC0B3/cbSXLgQiYXS/cdBS9hU50PHD2byK9h3vmvBXvQ+R4W1aX7YRfT510J7t8CGVq6a/wV0GQjDj5RenPA==", "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 0/7] whpx: i386: Some more changes", "Date": "Tue, 14 Apr 2026 20:22:24 +0200", "Message-ID": "<20260414182231.18776-1-mohamed@unpredictable.fr>", "X-Mailer": "git-send-email 2.50.1", "Content-Type": "text/plain; charset=\"utf-8\"", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Authority-Info-Out": "v=2.4 cv=U/qfzOru c=1 sm=1 tr=0 ts=69de85ed\n cx=c_apl:c_pps:t_out a=azHRBMxVc17uSn+fyuI/eg==:117\n a=azHRBMxVc17uSn+fyuI/eg==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10\n a=VkNPw1HP01LnGYTKEx00:22 a=oOLWm9IBL3BG_uuw-oUA:9 a=QEXdDO2ut3YA:10", "X-Proofpoint-GUID": "Bwy4s5e7HmDEjrxFgZDGBuNQHX5YhvUS", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDE0MDE3MiBTYWx0ZWRfXwljp5hcHXi4F\n qb7HXb7UkVV3FUErhBBJWZEij7CbfyOqNBThOzkh0BztEx+JvLtqOuhY8erR19lrKUBT/QiPNpd\n LvV5z6W5NmnHUkcaz2t1K2AdfhjgyVftYf/EFnMDtRwLA00eTlEy1HzBI4RLeVqTPMwbMTqJOID\n lGnOZGDIXGMMP2aVTeg+QBPVhQO8fJmGGcKscTQZGFzIQ38r8hf3z/hN1I3y+1xmyShhT/ROUgS\n u5f9yOSunbFw6N1BkaOhSFtGsv2g+zd2HeZSRHQtmNsiGmMhEjGlMJ+YPOvRNbsnsk94GyTAkrP\n G9a8G5fGQQuE6WHym9/qgZFQIK39q40JSxMPIBbWh0vKyR9/N3sEE7o0KVGBBo=", "X-Proofpoint-ORIG-GUID": "Bwy4s5e7HmDEjrxFgZDGBuNQHX5YhvUS", "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\n lowpriorityscore=0 clxscore=1030 phishscore=0 mlxlogscore=710 spamscore=0\n adultscore=0 mlxscore=0 bulkscore=0 malwarescore=0 suspectscore=0\n classifier=spam authscore=0 adjust=0 reason=mlx scancount=1\n engine=8.22.0-2601150000 definitions=main-2604140172", "Received-SPF": "pass client-ip=57.103.66.196;\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": "This applies on top of the \"whpx: i386: bug fixes, feature probing and CPUID\" series.\n\n\"target: i386: HLT type that ignores EFLAGS.IF\" is probably the most worthwhile patch\nhere, and that not-quite-an-HLT might be what's needed to reduce CPU idle on KVM on\nrecent Windows versions too..\n\nBased-on: <20260413205208.50643-1-mohamed@unpredictable.fr>\n\nMohamed Mediouni (7):\n whpx: i386: set apicbase value only on success\n whpx: i386: unknown MSR configurability\n whpx: i386: enable GuestIdleReg enlightenment\n whpx: i386: tighten APIC base validity check\n whpx: i386: ignore vpassist when kernel-irqchip=off\n target: i386: HLT type that ignores EFLAGS.IF\n whpx: i386: add HV_X64_MSR_GUEST_IDLE when !kernel-irqchip\n\n accel/whpx/whpx-common.c | 38 ++++++++++++++++++\n include/system/whpx-internal.h | 1 +\n target/i386/cpu.c | 10 +++--\n target/i386/cpu.h | 2 +\n target/i386/whpx/whpx-all.c | 70 +++++++++++++++++++++++++++++++---\n 5 files changed, 112 insertions(+), 9 deletions(-)" }