From nobody Thu Apr 2 06:28:47 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.12]) (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 C38E23FFAC7; Thu, 5 Mar 2026 17:44:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.12 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772732684; cv=none; b=seMs+94K1lJvKmH7k0lXq7Z146KWD+OTem7NultykBtsSgiXW2IoNTD3kOiIJ3zwVmTMzMtj6JZ3bQPOoEKxOzj/4v4Z3unJQoNiWzY9Xij6NSeIePeJCSLjKCnVkLs/mjcfqE7QetVeTuxQtlLu1v1wS8vb1xOvYHSUBNMLGFQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772732684; c=relaxed/simple; bh=HDc12PQVv3ZBF2lEZk6jS6/6hE2E9STlZ/ISpWqGmls=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=RhVrMBEL+HDi09rLa7JvXaukabApbNk3lPwOP+orJWaY7acpM9rxAEgFnH4hZFRzIsTwXGt04MjX/NIc4BkOWxdr4K3V2XITGxDcXa8CQf/nq6ugCu7fzxNCBwihq2PDPX46mXLH6DBReeqOy0K7BZnjuOYWhWMaXYmSJrShMVI= 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=VdDshT8c; arc=none smtp.client-ip=192.198.163.12 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="VdDshT8c" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772732683; x=1804268683; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=HDc12PQVv3ZBF2lEZk6jS6/6hE2E9STlZ/ISpWqGmls=; b=VdDshT8cSY5X7/YmRvbMV21xhEPMtczViAcPzd5vJ+4S/7U8w/MRcJqo 5SRfWQlX6BEjef50BYZIi/7Y9vUUM+AKuagzJZBU28tUfSddHEjyKNf50 wB/4ceiXp9r0WhWQcGCGqU9Efm//95zboaLhU+k1ieEf8wSMUVCeWR4Q3 inYSzkc3HmCJjhIul1SXKrMpaXwE9uS6ZNTCtKKn69tzgyo9oBMP4fGMO HXSb/lInc35ryt/22swE2XiP3bQD7FWOPCnjjJJz1NvebzqNm2mcvlrUB F5q6EDR6W1tfwhctcuSO8fAA1aykia4Kj5fa8WT5oBK2dDUmqq97oh8jA Q==; X-CSE-ConnectionGUID: 79kN3D2QRXmjJg3igynDfw== X-CSE-MsgGUID: m7aU8yvWSTG4D2Jdd+l2Ig== X-IronPort-AV: E=McAfee;i="6800,10657,11720"; a="77701121" X-IronPort-AV: E=Sophos;i="6.23,103,1770624000"; d="scan'208";a="77701121" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Mar 2026 09:44:42 -0800 X-CSE-ConnectionGUID: D1BecQheSPyJrhw2SugkEg== X-CSE-MsgGUID: JXlxc26jQNyVBIzmHQIaeg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,103,1770624000"; d="scan'208";a="256647609" Received: from mdroper-mobl2.amr.corp.intel.com (HELO localhost) ([10.124.220.244]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Mar 2026 09:44:42 -0800 From: isaku.yamahata@intel.com To: kvm@vger.kernel.org Cc: isaku.yamahata@intel.com, isaku.yamahata@gmail.com, Paolo Bonzini , Sean Christopherson , linux-kernel@vger.kernel.org Subject: [PATCH v2 20/36] KVM: VMX: Advertise tertiary controls to the user space Date: Thu, 5 Mar 2026 09:44:00 -0800 Message-ID: X-Mailer: git-send-email 2.45.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Isaku Yamahata Make KVM_GET_MSR_INDEX_LIST, KVM_GET_MSR_FEATURE_INDEX_LIST, KVM_GET_MSRS to advertise MSR_IA32_VMX_PROCBASED_CTLS3 to the user space VMM like QEMU. Signed-off-by: Isaku Yamahata --- arch/x86/kvm/vmx/vmx.c | 3 +++ arch/x86/kvm/x86.c | 1 + 2 files changed, 4 insertions(+) diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index bac3f33f7d73..8c2ab0164714 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -7214,6 +7214,9 @@ bool vmx_has_emulated_msr(struct kvm *kvm, u32 index) */ return enable_unrestricted_guest || emulate_invalid_guest_state; case KVM_FIRST_EMULATED_VMX_MSR ... KVM_LAST_EMULATED_VMX_MSR: + if (index =3D=3D MSR_IA32_VMX_PROCBASED_CTLS3 && + !__nested_cpu_supports_tertiary_ctls(&vmcs_config.nested)) + return false; return nested; case MSR_AMD64_VIRT_SPEC_CTRL: case MSR_AMD64_TSC_RATIO: diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 1922e8699101..8a1ec0a39624 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -457,6 +457,7 @@ static const u32 emulated_msrs_all[] =3D { MSR_IA32_VMX_PROCBASED_CTLS2, MSR_IA32_VMX_EPT_VPID_CAP, MSR_IA32_VMX_VMFUNC, + MSR_IA32_VMX_PROCBASED_CTLS3, =20 MSR_K7_HWCR, MSR_KVM_POLL_CONTROL, --=20 2.45.2