From: Kai Huang <kai.huang@intel.com>
To: Dave Hansen <dave.hansen@intel.com>
Cc: <linux-sgx@vger.kernel.org>, <kvm@vger.kernel.org>,
<x86@kernel.org>, <seanjc@google.com>, <jarkko@kernel.org>,
<luto@kernel.org>, <haitao.huang@intel.com>,
<pbonzini@redhat.com>, <bp@alien8.de>, <tglx@linutronix.de>,
<mingo@redhat.com>, <hpa@zytor.com>, <jethro@fortanix.com>,
<b.thiel@posteo.de>
Subject: Re: [RFC PATCH v2 06/26] x86/cpu/intel: Allow SGX virtualization without Launch Control support
Date: Thu, 21 Jan 2021 12:50:00 +1300 [thread overview]
Message-ID: <20210121125000.c8b68c0510c9cdebbafd572a@intel.com> (raw)
In-Reply-To: <bc73adaf-fae6-2088-c8d4-6f53057a4eac@intel.com>
On Wed, 20 Jan 2021 13:02:15 -0800 Dave Hansen wrote:
> On 1/17/21 7:27 PM, Kai Huang wrote:
> > - enable_sgx = cpu_has(c, X86_FEATURE_SGX) &&
> > - cpu_has(c, X86_FEATURE_SGX_LC) &&
> > - IS_ENABLED(CONFIG_X86_SGX);
> > + enable_sgx_driver = cpu_has(c, X86_FEATURE_SGX) &&
> > + cpu_has(c, X86_FEATURE_SGX1) &&
> > + IS_ENABLED(CONFIG_X86_SGX) &&
> > + cpu_has(c, X86_FEATURE_SGX_LC);
> > + enable_sgx_virt = cpu_has(c, X86_FEATURE_SGX) &&
> > + cpu_has(c, X86_FEATURE_SGX1) &&
> > + IS_ENABLED(CONFIG_X86_SGX) &&
> > + IS_ENABLED(CONFIG_X86_SGX_VIRTUALIZATION) &&
> > + enable_vmx;
>
> Would it be too much to ask that the SGX/SGX1 checks not be duplicated?
> Perhaps:
>
> enable_sgx_any = cpu_feature_enabled(CONFIG_X86_SGX) &&
> cpu_feature_enabled(CONFIG_X86_SGX1);
>
> enable_sgx_driver = enable_sgx_any &&
> cpu_has(c, X86_FEATURE_SGX_LC);
>
> enable_sgx_virt = enable_sgx_any &&
> enable_vmx &&
> IS_ENABLED(CONFIG_X86_SGX_VIRTUALIZATION)
>
I am happy to do it. Thanks.
next prev parent reply other threads:[~2021-01-21 4:55 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-18 3:26 [RFC PATCH v2 00/26] KVM SGX virtualization support Kai Huang
2021-01-18 3:26 ` [RFC PATCH v2 01/26] x86/cpufeatures: Add SGX1 and SGX2 sub-features Kai Huang
2021-01-19 16:19 ` Borislav Petkov
2021-01-19 18:03 ` Sean Christopherson
2021-01-19 22:54 ` Kai Huang
2021-01-20 10:28 ` Borislav Petkov
2021-01-20 11:50 ` Jarkko Sakkinen
2021-01-20 23:23 ` Kai Huang
2021-01-21 1:01 ` Jarkko Sakkinen
2021-01-18 3:26 ` [RFC PATCH v2 02/26] x86/sgx: Remove a warn from sgx_free_epc_page() Kai Huang
2021-01-19 8:32 ` Jarkko Sakkinen
2021-01-20 0:42 ` Kai Huang
2021-01-18 3:26 ` [RFC PATCH v2 03/26] x86/sgx: Wipe out EREMOVE " Kai Huang
2021-01-18 3:26 ` [RFC PATCH v2 04/26] x86/sgx: Add SGX_CHILD_PRESENT hardware error code Kai Huang
2021-01-20 11:51 ` Jarkko Sakkinen
2021-01-18 3:26 ` [RFC PATCH v2 05/26] x86/sgx: Introduce virtual EPC for use by KVM guests Kai Huang
2021-01-20 11:54 ` Jarkko Sakkinen
2021-01-20 17:40 ` Sean Christopherson
2021-01-21 0:54 ` Jarkko Sakkinen
2021-01-21 0:55 ` Jarkko Sakkinen
2021-01-18 3:27 ` [RFC PATCH v2 06/26] x86/cpu/intel: Allow SGX virtualization without Launch Control support Kai Huang
2021-01-20 21:02 ` Dave Hansen
2021-01-20 22:36 ` Sean Christopherson
2021-01-20 23:27 ` Dave Hansen
2021-01-20 23:48 ` Kai Huang
2021-01-20 23:51 ` Dave Hansen
2021-01-21 1:53 ` Kai Huang
2021-01-21 14:35 ` Jarkko Sakkinen
2021-01-21 1:12 ` Jarkko Sakkinen
2021-01-20 23:50 ` Kai Huang [this message]
2021-01-21 1:11 ` Jarkko Sakkinen
2021-01-18 3:27 ` [RFC PATCH v2 07/26] x86/sgx: Initialize virtual EPC driver even when SGX driver is disabled Kai Huang
2021-01-18 3:27 ` [RFC PATCH v2 08/26] x86/sgx: Expose SGX architectural definitions to the kernel Kai Huang
2021-01-20 11:58 ` Jarkko Sakkinen
2021-01-20 23:53 ` Kai Huang
2021-01-18 3:27 ` [RFC PATCH v2 09/26] x86/sgx: Move ENCLS leaf definitions to sgx_arch.h Kai Huang
2021-01-20 11:59 ` Jarkko Sakkinen
2021-01-18 3:28 ` [RFC PATCH v2 10/26] x86/sgx: Add SGX2 ENCLS leaf definitions (EAUG, EMODPR and EMODT) Kai Huang
2021-01-20 11:59 ` Jarkko Sakkinen
2021-01-18 3:28 ` [RFC PATCH v2 11/26] x86/sgx: Add encls_faulted() helper Kai Huang
2021-01-20 12:03 ` Jarkko Sakkinen
2021-01-20 23:43 ` Kai Huang
2021-01-21 1:08 ` Jarkko Sakkinen
2021-01-21 1:12 ` Kai Huang
2021-01-21 14:38 ` Jarkko Sakkinen
2021-01-18 3:28 ` [RFC PATCH v2 12/26] x86/sgx: Add helper to update SGX_LEPUBKEYHASHn MSRs Kai Huang
2021-01-20 12:03 ` Jarkko Sakkinen
2021-01-20 18:36 ` Dave Hansen
2021-01-20 23:36 ` Kai Huang
2021-01-20 23:50 ` Dave Hansen
2021-01-21 1:06 ` Kai Huang
2021-01-21 1:15 ` Dave Hansen
2021-01-21 1:44 ` Kai Huang
2021-01-21 14:36 ` Jarkko Sakkinen
2021-01-21 1:18 ` Kai Huang
2021-01-21 1:09 ` Jarkko Sakkinen
2021-01-21 1:08 ` Jarkko Sakkinen
2021-01-18 3:28 ` [RFC PATCH v2 13/26] x86/sgx: Add helpers to expose ECREATE and EINIT to KVM Kai Huang
2021-01-20 12:04 ` Jarkko Sakkinen
2021-01-20 23:29 ` Kai Huang
2021-01-18 3:28 ` [RFC PATCH v2 14/26] x86/sgx: Move provisioning device creation out of SGX driver Kai Huang
2021-01-20 14:09 ` Jarkko Sakkinen
2021-01-20 23:24 ` Kai Huang
2021-01-18 3:28 ` [RFC PATCH v2 15/26] KVM: VMX: Convert vcpu_vmx.exit_reason to a union Kai Huang
2021-01-20 14:18 ` Jarkko Sakkinen
2021-01-20 16:39 ` Sean Christopherson
2021-01-21 0:47 ` Jarkko Sakkinen
2021-01-21 16:33 ` Sean Christopherson
2021-01-22 17:29 ` Jarkko Sakkinen
2021-01-18 3:28 ` [RFC PATCH v2 16/26] KVM: x86: Export kvm_mmu_gva_to_gpa_{read,write}() for SGX (VMX) Kai Huang
2021-01-20 14:19 ` Jarkko Sakkinen
2021-01-18 3:28 ` [RFC PATCH v2 17/26] KVM: x86: Define new #PF SGX error code bit Kai Huang
2021-01-18 3:28 ` [RFC PATCH v2 18/26] KVM: x86: Add support for reverse CPUID lookup of scattered features Kai Huang
2021-01-18 3:28 ` [RFC PATCH v2 19/26] KVM: x86: Add reverse-CPUID lookup support for scattered SGX features Kai Huang
2021-01-18 3:28 ` [RFC PATCH v2 20/26] KVM: VMX: Add basic handling of VM-Exit from SGX enclave Kai Huang
2021-01-18 3:28 ` [RFC PATCH v2 21/26] KVM: VMX: Frame in ENCLS handler for SGX virtualization Kai Huang
2021-01-18 3:28 ` [RFC PATCH v2 22/26] KVM: VMX: Add SGX ENCLS[ECREATE] handler to enforce CPUID restrictions Kai Huang
2021-01-18 3:28 ` [RFC PATCH v2 23/26] KVM: VMX: Add emulation of SGX Launch Control LE hash MSRs Kai Huang
2021-01-18 3:28 ` [RFC PATCH v2 24/26] KVM: VMX: Add ENCLS[EINIT] handler to support SGX Launch Control (LC) Kai Huang
2021-01-18 3:28 ` [RFC PATCH v2 25/26] KVM: VMX: Enable SGX virtualization for SGX1, SGX2 and LC Kai Huang
2021-01-18 3:29 ` [RFC PATCH v2 26/26] KVM: x86: Add capability to grant VM access to privileged SGX attribute Kai Huang
2021-01-19 8:23 ` [RFC PATCH v2 00/26] KVM SGX virtualization support Jarkko Sakkinen
2021-01-20 0:52 ` Kai Huang
2021-01-20 16:35 ` Sean Christopherson
2021-01-20 16:39 ` Paolo Bonzini
2021-01-21 1:28 ` Kai Huang
2021-01-20 23:43 ` Jarkko Sakkinen
2021-01-20 23:52 ` Kai Huang
2021-01-21 1:16 ` Jarkko Sakkinen
2021-01-21 1:27 ` Kai Huang
2021-01-21 14:34 ` Jarkko Sakkinen
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