From nobody Fri Apr 3 22:35:02 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=1774267093; cv=none; d=zohomail.com; s=zohoarc; b=WOLCG0RKxbAxmoX5gK4n6wD3du62Rs3g1u5QWKIfeau8mW3NrSF42x9qCdDr1Ka9DF/sP6HmGIugVBLUAG9dUMqFU97J1n7GH/KNfUIsyNBx7sx/xnZzeoz0R1czbHD3jstAfpuI5/w6a/XwAiX6M9Hpe3gRtSQgHUeQLtzlMCw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1774267093; 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=bUko3E5Xgz0PDf+uPX1FIzN7xk3G3lMmy+0pHdsbUniiwVSQbvIJQsMYWNoNvQqIC0Tr5SO5KjMNkli5bbdQX9Cz464k9Qagf5bYGZyLL1U/kTelgj02SBIRxugO2yjTKTcsRYTruAFhp4rwO19ZXg8MNZm4VoE9IwZtJ4kIt/s= 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 1774267093540363.0902473610721; Mon, 23 Mar 2026 04:58:13 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1w4duZ-0000NT-Fv; Mon, 23 Mar 2026 07:57:35 -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 1w4duX-0000Mi-Mi for qemu-devel@nongnu.org; Mon, 23 Mar 2026 07:57:33 -0400 Received: from linux.microsoft.com ([13.77.154.182]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1w4duW-0003gT-AJ for qemu-devel@nongnu.org; Mon, 23 Mar 2026 07:57:33 -0400 Received: from DESKTOP-TUU1E5L.localdomain (unknown [167.220.208.76]) by linux.microsoft.com (Postfix) with ESMTPSA id E851420B7128; Mon, 23 Mar 2026 04:57:29 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com E851420B7128 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1774267051; bh=VQhmCCz13ebRrgK1mip1yFxADBIv5/zsub4TZBKPLKM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VzFsZm0QElgnCYqso4u3BDWHbUh2fqBbmec2wJFLyPLlv5vPVutLkZDPcobMEB3Fi 8K2NoWuBNTYnnCljf4/3TGU2IV5rNSSdyzWElCo3Ye0mf55IFygcPEA9DYSlMVEGrr lf/hBu6RPDJnuXQsmTE6Lf3Szw/Bc2dK/dcaAvc4= From: Magnus Kulke To: qemu-devel@nongnu.org Cc: Wei Liu , Paolo Bonzini , Wei Liu , Magnus Kulke , Magnus Kulke , Zhao Liu Subject: [PATCH v3 7/9] target/i386/mshv: populate xsave area offsets Date: Mon, 23 Mar 2026 12:57:09 +0100 Message-Id: <20260323115711.353793-8-magnuskulke@linux.microsoft.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260323115711.353793-1-magnuskulke@linux.microsoft.com> References: <20260323115711.353793-1-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: -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, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, 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: , 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: 1774267094733154100 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 Reviewed-by: Anirudh Rayabharam (Microsoft) --- 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