From patchwork Wed Nov 15 07:14:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 13456306 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 635178F54 for ; Wed, 15 Nov 2023 07:18:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="MiHm0Y3I" Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 99EAD8E for ; Tue, 14 Nov 2023 23:18:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1700032732; x=1731568732; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=lZ7FlIk1HYztdqvj6ltoIcTo7JYAisDaEO7/8xv8SMQ=; b=MiHm0Y3IyRf4s7gUu6oMLNhbanNoCZjkxMpi0U+mv2eFLUIKBmHXi17A FvUdlQO9FT2dTaV0UH+jDIgXvt2gUlTxWM8FlTepuoun4Ztx8MG3xxYAr xL8Hl17APcnZEFEjKdY++FivnFBGFwzNjxN1Qv9ODwU6AHIsQqm5kpBwJ HZzCTJ4MaJI3KD8Zo+NoOvb5jUx0f9s/ZSQ6OYgvHLougcypT5xAHSayw 71JpuZf8Dsc70AjyAdcjv8h/ktNUz6GKwutc1dwcP0ZCAS795yxLTObX2 Pw9JCxjjWUXy6nylH8lFEk9s9yRK6YOSQ/NDGUc95mIxKWNeMihI751KZ w==; X-IronPort-AV: E=McAfee;i="6600,9927,10894"; a="390622815" X-IronPort-AV: E=Sophos;i="6.03,304,1694761200"; d="scan'208";a="390622815" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Nov 2023 23:18:52 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10894"; a="714798746" X-IronPort-AV: E=Sophos;i="6.03,304,1694761200"; d="scan'208";a="714798746" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by orsmga003.jf.intel.com with ESMTP; 14 Nov 2023 23:18:42 -0800 From: Xiaoyao Li To: Paolo Bonzini , David Hildenbrand , Igor Mammedov , "Michael S . Tsirkin" , Marcel Apfelbaum , Richard Henderson , Peter Xu , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Cornelia Huck , =?utf-8?q?Daniel_P_=2E_Berrang=C3=A9?= , Eric Blake , Markus Armbruster , Marcelo Tosatti Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, xiaoyao.li@intel.com, Michael Roth , Sean Christopherson , Claudio Fontana , Gerd Hoffmann , Isaku Yamahata , Chenyi Qiang Subject: [PATCH v3 29/70] i386/tdx: Wire CPU features up with attributes of TD guest Date: Wed, 15 Nov 2023 02:14:38 -0500 Message-Id: <20231115071519.2864957-30-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231115071519.2864957-1-xiaoyao.li@intel.com> References: <20231115071519.2864957-1-xiaoyao.li@intel.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 For QEMU VMs, PKS is configured via CPUID_7_0_ECX_PKS and PMU is configured by x86cpu->enable_pmu. Reuse the existing configuration interface for TDX VMs. Signed-off-by: Xiaoyao Li Acked-by: Gerd Hoffmann --- target/i386/kvm/tdx.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index 7d2b1da85951..bb10331e2a88 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -33,6 +33,8 @@ (1U << KVM_FEATURE_MSI_EXT_DEST_ID)) #define TDX_TD_ATTRIBUTES_SEPT_VE_DISABLE BIT_ULL(28) +#define TDX_TD_ATTRIBUTES_PKS BIT_ULL(30) +#define TDX_TD_ATTRIBUTES_PERFMON BIT_ULL(63) #define TDX_ATTRIBUTES_MAX_BITS 64 @@ -469,6 +471,15 @@ int tdx_kvm_init(MachineState *ms, Error **errp) return 0; } +static void setup_td_guest_attributes(X86CPU *x86cpu) +{ + CPUX86State *env = &x86cpu->env; + + tdx_guest->attributes |= (env->features[FEAT_7_0_ECX] & CPUID_7_0_ECX_PKS) ? + TDX_TD_ATTRIBUTES_PKS : 0; + tdx_guest->attributes |= x86cpu->enable_pmu ? TDX_TD_ATTRIBUTES_PERFMON : 0; +} + int tdx_pre_create_vcpu(CPUState *cpu, Error **errp) { MachineState *ms = MACHINE(qdev_get_machine()); @@ -491,8 +502,9 @@ int tdx_pre_create_vcpu(CPUState *cpu, Error **errp) goto out_free; } + setup_td_guest_attributes(x86cpu); + init_vm->cpuid.nent = kvm_x86_arch_cpuid(env, init_vm->cpuid.entries, 0); - init_vm->attributes = tdx_guest->attributes; do {