From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (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 009D33D5228; Wed, 29 Jul 2026 19:43:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.8 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785354247; cv=none; b=W1uZCExkxxOsJulQhl6hCGS0RBVuIhrK/1gFG7tIGU5cHedbVixDbUwl72daIGv4qv0Y1/KmgAzWUHcb5I2JVnRl6dL7uvOEMeWIDbzl7EQZxKok/snKeXDq4VcSvBYMsrhqmj5OV1pXWWtPdIVsKm74cmtuQJZ3FJk1RU5e2mY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785354247; c=relaxed/simple; bh=dWEdx2vtF+kR8c3/Y7QXeQKcBYYo4wB2YJK9sr/AYLs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uDcSLIgYJTAKtWIy8dWsPCOmxHDX1vMbmlsHXzhN5lMjKQG4XzSuNYJVBpYrksnq78O4FC5lYS1HHfSC4u6W4NU2ExMad3El9KdNYWN1jaTuPhz5AM3BLeAQndwIg6IbRPaKctVB6yvC/9gjSJUls+b11sQJPJkw2lS8cJNBeS4= 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=S2l5I8cj; arc=none smtp.client-ip=192.198.163.8 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="S2l5I8cj" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1785354241; x=1816890241; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=dWEdx2vtF+kR8c3/Y7QXeQKcBYYo4wB2YJK9sr/AYLs=; b=S2l5I8cjRrKY/epQDxJzzJ/xk5v99yNq9nZfa7NwMCMXCi/rJk2aeeP8 KCK7j1/yedkZa241q1HEIbc9hNqGMUv40tYxbFIailZeT84s3CdrOAD72 k8i5YBq21TIInWGdBEbYD4946kTPK9SplrUNYXm+blY/k0QypW7qDMBQn nOv3Sx3b9ADDhWkWJ0HTkBnsq7YoLa66pSMQbA/To8e6B13ptdHVMxwbq OSNM5Eq3vaUhvi+cuCj0HXf+7xRn6Bnm5O851rBuq4PPIkD5iUWjOzVSA 3SnxSobF+0EDX214f7Pr69L8vA2+9MQTTsVpw6RVh1e8RjuTHkUqAxEDP w==; X-CSE-ConnectionGUID: 31Nn6ADwQU6I0e0r9dxYEg== X-CSE-MsgGUID: +OTnYvWOR4WRXYD2KQVvjQ== X-IronPort-AV: E=McAfee;i="6800,10657,11859"; a="103508307" X-IronPort-AV: E=Sophos;i="6.25,193,1779174000"; d="scan'208";a="103508307" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jul 2026 12:43:32 -0700 X-CSE-ConnectionGUID: nMq8HTrpSaOWW/pbrPxm5Q== X-CSE-MsgGUID: ZMNXyCGUTWCkZ0YOKFbdIg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,193,1779174000"; d="scan'208";a="256769271" Received: from chang-linux-3.sc.intel.com (HELO chang-linux-3) ([172.25.66.174]) by fmviesa007.fm.intel.com with ESMTP; 29 Jul 2026 12:43:31 -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 v6 16/20] KVM: x86: Add APX to supported XCR0 Date: Wed, 29 Jul 2026 19:16:52 +0000 Message-ID: <20260729191656.598771-17-chang.seok.bae@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260729191656.598771-1-chang.seok.bae@intel.com> References: <20260729191656.598771-1-chang.seok.bae@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@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