From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 59F9A47DFBD; Mon, 20 Jul 2026 17:46:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784569613; cv=none; b=O7SKhzyBJxqVlCiGx2TpsPfzYkI6fbOTG8/nDUT0Svshj+14MKHzdlV8ceSF1P89R92EBvUPKH7p66DpzTbK2JSFb7phFJV+UDt/az1ov+wG6baaNFCTdtNfSomVUTVy5a2uvlTGN0UBd28vQIue4akUzNEMcGn5QXtTE0hig3I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784569613; c=relaxed/simple; bh=dWEdx2vtF+kR8c3/Y7QXeQKcBYYo4wB2YJK9sr/AYLs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=VuoTkxxiFcDtF5PaN5MA+y/CBgWSI9oKSYXequ8Cl/+luyU11Ikn98rMat022arvMdDPi8Tn7pzifVlzeIPdLA3zuojOAO6gzHjBakIiJygofTn3aZaafFTXNm8JscVrTCjWQrUQKtPjZUBQ5aS4lYyxjCDDZYcSQjtyfoUixMw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=RVJgOPHf; arc=none smtp.client-ip=192.198.163.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="RVJgOPHf" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1784569605; x=1816105605; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=dWEdx2vtF+kR8c3/Y7QXeQKcBYYo4wB2YJK9sr/AYLs=; b=RVJgOPHfoGjQwF5CT8zOvLkDjbjgSKMTUIn1ZHF7DR8BdustucjiDuc4 liTFFQzap5g43pZiuATliV2IdMXBCwCCo1d5It4iEtVGRgPps16kT+eX1 Snjt71H17axJxP+nv0FJ4ZWfCx9kyCwdkw+Cw9bNJbh/aLzIlRvk1IVIC 02idxI1Faec+XmRBXBMSoEB929/yN9qmj7dLmV8CUi9+uAEBH0fqKK6l0 hxp3s3x9Xk+74Dv9dEMw14Ff35y2ro1NEimbrQoJFzejLbodn7IGsBkZn oiBMNzOnB+aGK/S9DYTdmwgZVDQ8/T2XQ2Kkkz/8YY7B/qhcSunRdOPcv w==; X-CSE-ConnectionGUID: +9O7mBf4TCCD1DWSimtXoQ== X-CSE-MsgGUID: 3TQakZBHRMiFeShzLvWp6Q== X-IronPort-AV: E=McAfee;i="6800,10657,11852"; a="72691705" X-IronPort-AV: E=Sophos;i="6.25,175,1779174000"; d="scan'208";a="72691705" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jul 2026 10:46:11 -0700 X-CSE-ConnectionGUID: Cavo8xnxTAaJ+xjply297A== X-CSE-MsgGUID: nBNctmIjQbywpxgjJRvHRg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,175,1779174000"; d="scan'208";a="257575393" Received: from chang-linux-3.sc.intel.com (HELO chang-linux-3) ([172.25.66.174]) by orviesa007.jf.intel.com with ESMTP; 20 Jul 2026 10:46:11 -0700 From: "Chang S. Bae" To: pbonzini@redhat.com, seanjc@google.com Cc: kvm@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, chang.seok.bae@intel.com Subject: [PATCH v5 16/20] KVM: x86: Add APX in supported XCR0 Date: Mon, 20 Jul 2026 17:19:45 +0000 Message-ID: <20260720171949.498680-17-chang.seok.bae@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260720171949.498680-1-chang.seok.bae@intel.com> References: <20260720171949.498680-1-chang.seok.bae@intel.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Set kvm_caps.supported_xcr0[APX] when the host has enabled the APX state along with CONFIG_KVM_APX=y. Signed-off-by: Chang S. Bae --- V4 -> V5: Separate out from userspace exposure (Sean) --- arch/x86/kvm/x86.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 266d7a02855b..48f8a2d69987 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -7082,6 +7082,8 @@ int kvm_x86_vendor_init(struct kvm_x86_init_ops *ops) if (boot_cpu_has(X86_FEATURE_XSAVE)) { kvm_host.xcr0 = xgetbv(XCR_XFEATURE_ENABLED_MASK); kvm_caps.supported_xcr0 = kvm_host.xcr0 & KVM_SUPPORTED_XCR0; + if (IS_ENABLED(CONFIG_KVM_APX)) + kvm_caps.supported_xcr0 |= kvm_host.xcr0 & XFEATURE_MASK_APX; } if (boot_cpu_has(X86_FEATURE_XSAVES)) { -- 2.53.0