{"id":2215424,"url":"http://patchwork.ozlabs.org/api/patches/2215424/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260324151323.74473-8-mohamed@unpredictable.fr/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/projects/14/?format=json","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":"<20260324151323.74473-8-mohamed@unpredictable.fr>","list_archive_url":null,"date":"2026-03-24T15:13:18","name":"[v3,07/12] whpx: i386: add implementation of new x86_emul_ops","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"ecfbb7fd18f6962939b9a999bee2bf8d2b281a6d","submitter":{"id":91318,"url":"http://patchwork.ozlabs.org/api/people/91318/?format=json","name":"Mohamed Mediouni","email":"mohamed@unpredictable.fr"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260324151323.74473-8-mohamed@unpredictable.fr/mbox/","series":[{"id":497303,"url":"http://patchwork.ozlabs.org/api/series/497303/?format=json","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/2215424/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2215424/checks/","tags":{},"related":[],"headers":{"Return-Path":"","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=KNOYka9Y;\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 4fgDBh3Cmrz1xy1\n\tfor ; Wed, 25 Mar 2026 02:15:56 +1100 (AEDT)","from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from )\n\tid 1w53Ts-0006Xm-Hf; Tue, 24 Mar 2026 11:15:44 -0400","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 )\n id 1w53Sz-0005vE-3Y\n for qemu-devel@nongnu.org; Tue, 24 Mar 2026 11:14:54 -0400","from p-east2-cluster2-host1-snip4-7.eps.apple.com ([57.103.78.10]\n helo=outbound.st.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 )\n id 1w53Sq-0005tK-3m\n for qemu-devel@nongnu.org; Tue, 24 Mar 2026 11:14:45 -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 DF6D51852A0C; Tue, 24 Mar 2026 15:14:31 +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 BABFE1814D21; Tue, 24 Mar 2026 15:13:49 +0000 (UTC)"],"Dkim-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr;\n s=sig1; t=1774365274; x=1776957274;\n bh=xmiWoWUwFQC07+7l4Wa/YhNMVuZwBdr5x6NXirvfyaw=;\n h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme;\n b=KNOYka9YgcZKTah1n5NV67T8959OyRrJ7xHv/dR5ImCyD7Op7mJ8zy7tTl0aSfpxiu0zHZfqVWC0kfyxKqaQ0Be1ffPiL+gLv8kdWHWkL97j1kJsiI/C7EyU+TvRhTrScHhJgdlYUDXsh98nDQURcxx+RKcl3xHliX5jnKR8iu99TgNt9tfctYYnvoM5e9F+m1L2R/NDlWm7XX4ZxRWGdI8r6fhpMNQFBW1G87AweUkctPqAq/wU/n5gyliiaVCccw2MRfcyf8ftNue0Zb4I5aVBTgjtUMtBAKC2Dn6I+lRR+PHNI96crwbu1RCvb4Z7seRfMQGwGzp8HCwLwb1Mxg==","mail-alias-created-date":"1752046281608","From":"Mohamed Mediouni ","To":"qemu-devel@nongnu.org","Cc":"Roman Bolshakov ,\n Mohamed Mediouni , Wei Liu ,\n Phil Dennis-Jordan ,\n Pedro Barbuda ","Subject":"[PATCH v3 07/12] whpx: i386: add implementation of new x86_emul_ops","Date":"Tue, 24 Mar 2026 16:13:18 +0100","Message-ID":"<20260324151323.74473-8-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":"6xZU7F-r9s6-5xQNGfxKGQHbDVc91LV2","X-Proofpoint-ORIG-GUID":"6xZU7F-r9s6-5xQNGfxKGQHbDVc91LV2","X-Authority-Info-Out":"v=2.4 cv=f6dFxeyM c=1 sm=1 tr=0 ts=69c2aa58\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=od5n6cu0qASRTXmq4OYA:9","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwMzI0MDExOSBTYWx0ZWRfX1/AMjzSpGEKz\n pYl3p955YAfx8lD58t/ss+zNV6+5ezqMu1F+ujwF78BG72pRDRnvuyZSrRQ9vefMIrzfzNgVNdX\n BXx0mpJUdzjsmZ6wnfejtvbBTwGSqT2WhJYCeNGUjsjugB73COgcGzNuXFu/3MQ4Ckjxjw37l+1\n CKl/dPbFOqPOrWoE0212CpvWdli0dDcJjUntSw00IdwHQsbD8bSU0R6nyaxgFEuLIIxIx+a8abF\n x7iV1vR8suPVhqXjeM1Vywa8NFhw8PKQNQCT5/69FBQMcnqzpzZ9i0Vs5SLLLnto4jCwnwhpmA/\n 3xMkT126np/E36nvkO1CpgnrTJWAcZJoBcrmmhahmqGp9SN/ooE6847ZVrADYQ=","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\n lowpriorityscore=0 suspectscore=0 mlxlogscore=919 malwarescore=0 mlxscore=0\n adultscore=0 bulkscore=0 clxscore=1030 phishscore=0 spamscore=0\n classifier=spam authscore=0 adjust=0 reason=mlx scancount=1\n engine=8.22.0-2601150000 definitions=main-2603240119","Received-SPF":"pass client-ip=57.103.78.10;\n envelope-from=mohamed@unpredictable.fr; helo=outbound.st.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_CERTIFIED_BLOCKED=0.001,\n RCVD_IN_VALIDITY_RPBL_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 ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"target/i386/emulate now has new ops for fetching whether the guest is in\nprotected mode, long mode or user mode without fetching control\nregisters.\n\nUse those for faster vmexits.\n\nSigned-off-by: Mohamed Mediouni \n---\n target/i386/whpx/whpx-all.c | 24 +++++++++++++++++++++++-\n 1 file changed, 23 insertions(+), 1 deletion(-)","diff":"diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c\nindex 69d141e7cc..b97dc9fd51 100644\n--- a/target/i386/whpx/whpx-all.c\n+++ b/target/i386/whpx/whpx-all.c\n@@ -885,10 +885,32 @@ static void read_segment_descriptor(CPUState *cpu,\n }\n }\n \n+static bool is_protected_mode(CPUState *cpu)\n+{\n+ AccelCPUState *vcpu = cpu->accel;\n+\n+ return vcpu->exit_ctx.VpContext.ExecutionState.Cr0Pe == 1;\n+}\n+\n+static bool is_long_mode(CPUState *cpu)\n+{\n+ AccelCPUState *vcpu = cpu->accel;\n+\n+ return vcpu->exit_ctx.VpContext.ExecutionState.EferLma == 1;\n+}\n+\n+static bool is_user_mode(CPUState *cpu)\n+{\n+ AccelCPUState *vcpu = cpu->accel;\n+ return vcpu->exit_ctx.VpContext.ExecutionState.Cpl == 3;\n+}\n \n static const struct x86_emul_ops whpx_x86_emul_ops = {\n .read_segment_descriptor = read_segment_descriptor,\n- .handle_io = handle_io\n+ .handle_io = handle_io,\n+ .is_protected_mode = is_protected_mode,\n+ .is_long_mode = is_long_mode,\n+ .is_user_mode = is_user_mode\n };\n \n static void whpx_init_emu(void)\n","prefixes":["v3","07/12"]}