From nobody Tue Feb 10 00:59:16 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1618828273; cv=none; d=zohomail.com; s=zohoarc; b=fmuou8eehihAbpb35cw1mDMQAultqG9x1SycLnhRC/jpdeVNm4CGUNbMS2eAgiQ/UdNOiYUO/ho6N4y9sLg1ovqBCq5jMG13ACs/937PlgPexnyHsZQPJeXITlaHyU3VwaqqE395iSSLGD9E7fPGMCRt9tBLO8HOs0xWqRYDfEM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1618828273; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=iBjEfTXgciUmVibJ5QJSoRsgc+iGd/k2RuuF7cPRWec=; b=AhVrnDfhnZkSBsk+rLshKF46Fn7rfzz0i+FejLHeAYqi1E950VzulXtamOKHvfNbwXaCXd9x2LVAEGHWXRYlGt/8b7RoidQwY02oVYbMPatftYNtenyuvm6Z7jqvuYpiNjPKVNe4WB5jJUQUdUS6MfRk7ruJr06jZm136XWdERo= ARC-Authentication-Results: i=1; mx.zohomail.com; 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=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1618828273147266.1639510010506; Mon, 19 Apr 2021 03:31:13 -0700 (PDT) Received: from localhost ([::1]:39742 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lYRBQ-0004oh-0C for importer@patchew.org; Mon, 19 Apr 2021 06:31:12 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:33034) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lYR3l-0004X7-5U for qemu-devel@nongnu.org; Mon, 19 Apr 2021 06:23:17 -0400 Received: from mga17.intel.com ([192.55.52.151]:24096) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lYR3j-000256-EV for qemu-devel@nongnu.org; Mon, 19 Apr 2021 06:23:16 -0400 Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Apr 2021 03:22:54 -0700 Received: from icx-2s.bj.intel.com ([10.240.192.119]) by fmsmga008.fm.intel.com with ESMTP; 19 Apr 2021 03:22:53 -0700 IronPort-SDR: NwOPEG12Yc7uM8q+u7uf5d7fMxcArzlbeSMRmS0xIXkbLFOrGxoVowxU3KStqzB125ELnotuHL sjE1mdqPe7kg== X-IronPort-AV: E=McAfee;i="6200,9189,9958"; a="175409296" X-IronPort-AV: E=Sophos;i="5.82,233,1613462400"; d="scan'208";a="175409296" IronPort-SDR: yDT/zROi3UOJX7KPVtGvC8H0cjAzrzXvAaY5EueuFid9Pm/y8qFFJuQgYUWcdKCthTsXEzMhjB 0Athe4xrzm3Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.82,233,1613462400"; d="scan'208";a="419947407" From: Yang Zhong To: qemu-devel@nongnu.org Subject: [PATCH 15/32] i386: Propagate SGX CPUID sub-leafs to KVM Date: Mon, 19 Apr 2021 18:01:39 +0800 Message-Id: <20210419100156.53504-16-yang.zhong@intel.com> X-Mailer: git-send-email 2.29.2.334.gfaefdd61ec In-Reply-To: <20210419100156.53504-1-yang.zhong@intel.com> References: <20210419100156.53504-1-yang.zhong@intel.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=192.55.52.151; envelope-from=yang.zhong@intel.com; helo=mga17.intel.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: yang.zhong@intel.com, pbonzini@redhat.com, kai.huang@intel.com, seanjc@google.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Sean Christopherson The SGX sub-leafs are enumerated at CPUID 0x12. Indices 0 and 1 are always present when SGX is supported, and enumerate SGX features and capabilities. Indices >=3D2 are directly correlated with the platform's EPC sections. Because the number of EPC sections is dynamic and user defined, the number of SGX sub-leafs is "NULL" terminated. Signed-off-by: Sean Christopherson Signed-off-by: Yang Zhong --- target/i386/kvm/kvm.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 648cccd7c2..67770b01cb 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -1615,6 +1615,25 @@ int kvm_arch_init_vcpu(CPUState *cs) } break; case 0x7: + case 0x12: + for (j =3D 0; ; j++) { + c->function =3D i; + c->flags =3D KVM_CPUID_FLAG_SIGNIFCANT_INDEX; + c->index =3D j; + cpu_x86_cpuid(env, i, j, &c->eax, &c->ebx, &c->ecx, &c->ed= x); + + if (j > 1 && (c->eax & 0xf) !=3D 1) { + break; + } + + if (cpuid_i =3D=3D KVM_MAX_CPUID_ENTRIES) { + fprintf(stderr, "cpuid_data is full, no space for " + "cpuid(eax:0x12,ecx:0x%x)\n", j); + abort(); + } + c =3D &cpuid_data.entries[cpuid_i++]; + } + break; case 0x14: { uint32_t times; =20 --=20 2.29.2.334.gfaefdd61ec