From nobody Thu Apr 9 12:08:46 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linux.microsoft.com ARC-Seal: i=1; a=rsa-sha256; t=1773228954; cv=none; d=zohomail.com; s=zohoarc; b=SzM1QSl/IpKMCz9CDskKawojkvTXK3TBTzzDPzT0XCnpPExsSdQyvNh3lP/uNgAsSEu4SfbBCsSBs3ZXuYHLFruwSern9E1AyuXRRNmzWo6DDE6OFMEAPvC777TLuze0+wixjzZYr1fWfzHMX8uiRXo51DJE2oo09keII3LIc7w= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1773228954; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=VQhmCCz13ebRrgK1mip1yFxADBIv5/zsub4TZBKPLKM=; b=imt6xbIppfg3myEzPWIqbGpM69Q+XfEZNrZwcM7Rbrpm31ee2c5bOrtXz52Qxr8gu3D4QhrGhj6/fx5cT3VRk43vb/Htufby0pwO7WwGlP5mIQ5+sEHf3OJNACTxP1ag6l4jKPFH3YUUGctZax80OqU+AD9018HpqI8oToD/juM= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1773228954609671.6966893820565; Wed, 11 Mar 2026 04:35:54 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1w0Hqh-0006ix-Cc; Wed, 11 Mar 2026 07:35:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1w0Hqf-0006iH-RT for qemu-devel@nongnu.org; Wed, 11 Mar 2026 07:35:33 -0400 Received: from linux.microsoft.com ([13.77.154.182]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1w0Hqe-0006GZ-9P for qemu-devel@nongnu.org; Wed, 11 Mar 2026 07:35:33 -0400 Received: from DESKTOP-TUU1E5L.localdomain (unknown [167.220.208.53]) by linux.microsoft.com (Postfix) with ESMTPSA id 8422820B7128; Wed, 11 Mar 2026 04:35:29 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 8422820B7128 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1773228931; bh=VQhmCCz13ebRrgK1mip1yFxADBIv5/zsub4TZBKPLKM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YRRc/bpNT8qe5iZ0Uqyy+BONpFOB46UaLMWcWOnvqKGKQUC28yQhLaWeuMODDvLzi R4xQ+O+plvFpdEnPARzWQegj0JML4vAMmJ+Lo3lHyy7Gh18fgTjQP22quLfQmcE4Qz x1K//d8OX6oVnAidIk9X5cttAvtL2uZRwas8E2/s= From: Magnus Kulke To: qemu-devel@nongnu.org Cc: Zhao Liu , Magnus Kulke , Paolo Bonzini , Wei Liu , Magnus Kulke , Wei Liu Subject: [PATCH v2 7/9] target/i386/mshv: populate xsave area offsets Date: Wed, 11 Mar 2026 12:35:03 +0100 Message-Id: <20260311113505.1177878-8-magnuskulke@linux.microsoft.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260311113505.1177878-1-magnuskulke@linux.microsoft.com> References: <20260311113505.1177878-1-magnuskulke@linux.microsoft.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=13.77.154.182; envelope-from=magnuskulke@linux.microsoft.com; helo=linux.microsoft.com X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.819, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.903, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no 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: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linux.microsoft.com) X-ZM-MESSAGEID: 1773228955472158500 Content-Type: text/plain; charset="utf-8" This function is copied verbatim from kvm_cpu_xsave_init(), for MSHV we need to populate the offsets similarly. Signed-off-by: Magnus Kulke --- target/i386/mshv/mshv-cpu.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/target/i386/mshv/mshv-cpu.c b/target/i386/mshv/mshv-cpu.c index 3b392533b4..ee25eb5f6f 100644 --- a/target/i386/mshv/mshv-cpu.c +++ b/target/i386/mshv/mshv-cpu.c @@ -1706,11 +1706,42 @@ int mshv_arch_post_init_vm(int vm_fd) return ret; } =20 +static void mshv_cpu_xsave_init(void) +{ + static bool first =3D true; + uint32_t eax, ebx, ecx, edx; + int i; + + if (!first) { + return; + } + first =3D false; + + /* x87 and SSE states are in the legacy region of the XSAVE area. */ + x86_ext_save_areas[XSTATE_FP_BIT].offset =3D 0; + x86_ext_save_areas[XSTATE_SSE_BIT].offset =3D 0; + + for (i =3D XSTATE_SSE_BIT + 1; i < XSAVE_STATE_AREA_COUNT; i++) { + ExtSaveArea *esa =3D &x86_ext_save_areas[i]; + + if (!esa->size) { + continue; + } + host_cpuid(0xd, i, &eax, &ebx, &ecx, &edx); + if (eax !=3D 0) { + assert(esa->size =3D=3D eax); + esa->offset =3D ebx; + esa->ecx =3D ecx; + } + } +} + static void mshv_cpu_instance_init(CPUState *cs) { X86CPU *cpu =3D X86_CPU(cs); =20 host_cpu_instance_init(cpu); + mshv_cpu_xsave_init(); } =20 static void mshv_cpu_accel_class_init(ObjectClass *oc, const void *data) --=20 2.34.1