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GET /api/patches/2223161/?format=api
{ "id": 2223161, "url": "http://patchwork.ozlabs.org/api/patches/2223161/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260414155433.483186-8-magnuskulke@linux.microsoft.com/", "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": "<20260414155433.483186-8-magnuskulke@linux.microsoft.com>", "list_archive_url": null, "date": "2026-04-14T15:54:31", "name": "[v4,7/9] target/i386/mshv: populate xsave area offsets", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "d9d978be8af82a0e800e90e715f9c8621a9f74a3", "submitter": { "id": 90753, "url": "http://patchwork.ozlabs.org/api/people/90753/?format=api", "name": "Magnus Kulke", "email": "magnuskulke@linux.microsoft.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260414155433.483186-8-magnuskulke@linux.microsoft.com/mbox/", "series": [ { "id": 499862, "url": "http://patchwork.ozlabs.org/api/series/499862/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499862", "date": "2026-04-14T15:54:24", "name": "Support QEMU cpu models in MSHV accelerator", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/499862/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2223161/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2223161/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 (1024-bit key;\n unprotected) header.d=linux.microsoft.com header.i=@linux.microsoft.com\n header.a=rsa-sha256 header.s=default header.b=D9M9P6FS;\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=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists1p.gnu.org (lists1p.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 4fw84j5Sr7z1xtJ\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 15 Apr 2026 01:55:33 +1000 (AEST)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists1p.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1wCg6M-0004ch-Qz; Tue, 14 Apr 2026 11:54:58 -0400", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <magnuskulke@linux.microsoft.com>)\n id 1wCg6L-0004c7-S4\n for qemu-devel@nongnu.org; Tue, 14 Apr 2026 11:54:57 -0400", "from linux.microsoft.com ([13.77.154.182])\n by eggs.gnu.org with esmtp (Exim 4.90_1)\n (envelope-from <magnuskulke@linux.microsoft.com>) id 1wCg6K-0000H1-FX\n for qemu-devel@nongnu.org; Tue, 14 Apr 2026 11:54:57 -0400", "from DESKTOP-TUU1E5L.localdomain (unknown [167.220.208.32])\n by linux.microsoft.com (Postfix) with ESMTPSA id 11D1120B6F0C;\n Tue, 14 Apr 2026 08:54:53 -0700 (PDT)" ], "DKIM-Filter": "OpenDKIM Filter v2.11.0 linux.microsoft.com 11D1120B6F0C", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com;\n s=default; t=1776182095;\n bh=aTVxvEVz5lQHNdZmbaeb9TChVHr9SVG0hmQSZJZieN0=;\n h=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n b=D9M9P6FSlPctwxe0ywTao8qSgWVPCpoqu4/L6f6TxANNbL84yoSoyzFYnYM+D8ck9\n fqhsi8Bw0vGt3cjnaH9iefLzREBcs4aCXMOJzbDjfpOtvzCt1SUlg1QQO6/+4KBU83\n znuS2kFHvdRBFdfpjGOtNSqFth50EvC+TzJFF89c=", "From": "Magnus Kulke <magnuskulke@linux.microsoft.com>", "To": "qemu-devel@nongnu.org", "Cc": "Wei Liu <wei.liu@kernel.org>, Wei Liu <liuwe@microsoft.com>,\n Magnus Kulke <magnuskulke@linux.microsoft.com>,\n Magnus Kulke <magnuskulke@microsoft.com>, Zhao Liu <zhao1.liu@intel.com>,\n Paolo Bonzini <pbonzini@redhat.com>", "Subject": "[PATCH v4 7/9] target/i386/mshv: populate xsave area offsets", "Date": "Tue, 14 Apr 2026 17:54:31 +0200", "Message-Id": "<20260414155433.483186-8-magnuskulke@linux.microsoft.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20260414155433.483186-1-magnuskulke@linux.microsoft.com>", "References": "<20260414155433.483186-1-magnuskulke@linux.microsoft.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=13.77.154.182;\n envelope-from=magnuskulke@linux.microsoft.com; helo=linux.microsoft.com", "X-Spam_score_int": "-42", "X-Spam_score": "-4.3", "X-Spam_bar": "----", "X-Spam_report": "(-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3,\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 function is copied verbatim from kvm_cpu_xsave_init(), for MSHV we\nneed to populate the offsets similarly.\n\nSigned-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>\nReviewed-by: Anirudh Rayabharam (Microsoft) <anirudh@anirudhrb.com>\n---\n target/i386/mshv/mshv-cpu.c | 31 +++++++++++++++++++++++++++++++\n 1 file changed, 31 insertions(+)", "diff": "diff --git a/target/i386/mshv/mshv-cpu.c b/target/i386/mshv/mshv-cpu.c\nindex 3b392533b4..ee25eb5f6f 100644\n--- a/target/i386/mshv/mshv-cpu.c\n+++ b/target/i386/mshv/mshv-cpu.c\n@@ -1706,11 +1706,42 @@ int mshv_arch_post_init_vm(int vm_fd)\n return ret;\n }\n \n+static void mshv_cpu_xsave_init(void)\n+{\n+ static bool first = true;\n+ uint32_t eax, ebx, ecx, edx;\n+ int i;\n+\n+ if (!first) {\n+ return;\n+ }\n+ first = false;\n+\n+ /* x87 and SSE states are in the legacy region of the XSAVE area. */\n+ x86_ext_save_areas[XSTATE_FP_BIT].offset = 0;\n+ x86_ext_save_areas[XSTATE_SSE_BIT].offset = 0;\n+\n+ for (i = XSTATE_SSE_BIT + 1; i < XSAVE_STATE_AREA_COUNT; i++) {\n+ ExtSaveArea *esa = &x86_ext_save_areas[i];\n+\n+ if (!esa->size) {\n+ continue;\n+ }\n+ host_cpuid(0xd, i, &eax, &ebx, &ecx, &edx);\n+ if (eax != 0) {\n+ assert(esa->size == eax);\n+ esa->offset = ebx;\n+ esa->ecx = ecx;\n+ }\n+ }\n+}\n+\n static void mshv_cpu_instance_init(CPUState *cs)\n {\n X86CPU *cpu = X86_CPU(cs);\n \n host_cpu_instance_init(cpu);\n+ mshv_cpu_xsave_init();\n }\n \n static void mshv_cpu_accel_class_init(ObjectClass *oc, const void *data)\n", "prefixes": [ "v4", "7/9" ] }