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From: "Huang, Kai" <kai.huang@intel.com>
To: Jarkko Sakkinen <jarkko@kernel.org>
Cc: "linux-sgx@vger.kernel.org" <linux-sgx@vger.kernel.org>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	"x86@kernel.org" <x86@kernel.org>,
	"seanjc@google.com" <seanjc@google.com>,
	"luto@kernel.org" <luto@kernel.org>,
	"Hansen, Dave" <dave.hansen@intel.com>,
	"Edgecombe, Rick P" <rick.p.edgecombe@intel.com>,
	"Huang, Haitao" <haitao.huang@intel.com>,
	"pbonzini@redhat.com" <pbonzini@redhat.com>,
	"bp@alien8.de" <bp@alien8.de>,
	"tglx@linutronix.de" <tglx@linutronix.de>,
	"mingo@redhat.com" <mingo@redhat.com>,
	"hpa@zytor.com" <hpa@zytor.com>
Subject: RE: [RFC PATCH v5 08/26] x86/sgx: Expose SGX architectural definitions to the kernel
Date: Tue, 16 Feb 2021 10:30:03 +0000	[thread overview]
Message-ID: <cdc73d737d634e778de4c691ca4fd080@intel.com> (raw)
In-Reply-To: <YCsrNqcB1C0Tyxz9@kernel.org>

> 
> On Sun, Feb 14, 2021 at 02:29:10AM +1300, Kai Huang wrote:
> > From: Sean Christopherson <sean.j.christopherson@intel.com>
> >
> > Expose SGX architectural structures, as KVM will use many of the
> > architectural constants and structs to virtualize SGX.
> >
> > Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
> > Acked-by: Dave Hansen <dave.hansen@intel.com>
> > Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
> > Signed-off-by: Kai Huang <kai.huang@intel.com>
> > ---
> >  arch/x86/{kernel/cpu/sgx/arch.h => include/asm/sgx_arch.h} | 0
> >  arch/x86/kernel/cpu/sgx/encl.c                             | 2 +-
> >  arch/x86/kernel/cpu/sgx/sgx.h                              | 2 +-
> >  tools/testing/selftests/sgx/defines.h                      | 2 +-
> >  4 files changed, 3 insertions(+), 3 deletions(-)  rename
> > arch/x86/{kernel/cpu/sgx/arch.h => include/asm/sgx_arch.h} (100%)
> >
> > diff --git a/arch/x86/kernel/cpu/sgx/arch.h
> > b/arch/x86/include/asm/sgx_arch.h similarity index 100% rename from
> > arch/x86/kernel/cpu/sgx/arch.h rename to
> > arch/x86/include/asm/sgx_arch.h
> 
> Why not just sgx.h? The postfix is useless.

Because those contents are *architectural*. They are defined in SDM.

And patch 13 (x86/sgx: Add helpers to expose ECREATE and EINIT to KVM) will introduce arch/x86/include/asm/sgx.h, where non-architectural functions will be declared.


  reply	other threads:[~2021-02-16 10:30 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-13 13:28 [RFC PATCH v5 00/26] KVM SGX virtualization support Kai Huang
2021-02-13 13:28 ` [RFC PATCH v5 01/26] x86/cpufeatures: Make SGX_LC feature bit depend on SGX bit Kai Huang
2021-02-13 13:28 ` [RFC PATCH v5 02/26] x86/cpufeatures: Add SGX1 and SGX2 sub-features Kai Huang
2021-02-13 13:28 ` [RFC PATCH v5 03/26] x86/sgx: Wipe out EREMOVE from sgx_free_epc_page() Kai Huang
2021-02-16 17:04   ` Dave Hansen
2021-02-16 20:42     ` Huang, Kai
2021-02-13 13:28 ` [RFC PATCH v5 04/26] x86/sgx: Add SGX_CHILD_PRESENT hardware error code Kai Huang
2021-02-13 13:28 ` [RFC PATCH v5 05/26] x86/sgx: Introduce virtual EPC for use by KVM guests Kai Huang
2021-02-16  2:12   ` Jarkko Sakkinen
2021-02-16 18:38   ` Dave Hansen
2021-02-16 19:25     ` Sean Christopherson
2021-02-16 21:33       ` Huang, Kai
2021-02-16 21:34     ` Huang, Kai
2021-02-17 22:22     ` Jarkko Sakkinen
2021-02-13 13:29 ` [RFC PATCH v5 06/26] x86/cpu/intel: Allow SGX virtualization without Launch Control support Kai Huang
2021-02-16  2:15   ` Jarkko Sakkinen
2021-02-16  5:03     ` Huang, Kai
2021-02-16  8:36       ` Jarkko Sakkinen
2021-02-16 10:24         ` Huang, Kai
2021-02-16 18:40   ` Dave Hansen
2021-02-16 20:42     ` Huang, Kai
2021-02-13 13:29 ` [RFC PATCH v5 07/26] x86/sgx: Initialize virtual EPC driver even when SGX driver is disabled Kai Huang
2021-02-16 18:41   ` Dave Hansen
2021-02-13 13:29 ` [RFC PATCH v5 08/26] x86/sgx: Expose SGX architectural definitions to the kernel Kai Huang
2021-02-16  2:17   ` Jarkko Sakkinen
2021-02-16 10:30     ` Huang, Kai [this message]
2021-02-16 10:32       ` Borislav Petkov
2021-02-16 11:15         ` Huang, Kai
2021-02-16 11:48           ` Borislav Petkov
2021-02-16 11:56             ` Huang, Kai
2021-02-16 15:18             ` Dave Hansen
2021-02-16 18:47               ` Borislav Petkov
2021-02-16 18:53                 ` Dave Hansen
2021-02-16 19:18                   ` Borislav Petkov
2021-02-17 22:20               ` Jarkko Sakkinen
2021-02-18  9:09                 ` Huang, Kai
2021-02-16 16:28         ` Jarkko Sakkinen
2021-02-13 13:29 ` [RFC PATCH v5 09/26] x86/sgx: Move ENCLS leaf definitions to sgx_arch.h Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 10/26] x86/sgx: Add SGX2 ENCLS leaf definitions (EAUG, EMODPR and EMODT) Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 11/26] x86/sgx: Add encls_faulted() helper Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 12/26] x86/sgx: Add helper to update SGX_LEPUBKEYHASHn MSRs Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 13/26] x86/sgx: Add helpers to expose ECREATE and EINIT to KVM Kai Huang
2021-02-16  3:08   ` Jarkko Sakkinen
2021-02-16  3:09     ` Jarkko Sakkinen
2021-02-16  4:55       ` Huang, Kai
2021-02-16  8:33         ` Jarkko Sakkinen
2021-02-16  8:35           ` Jarkko Sakkinen
2021-02-16  9:33             ` Huang, Kai
2021-02-13 13:29 ` [RFC PATCH v5 14/26] x86/sgx: Move provisioning device creation out of SGX driver Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 15/26] KVM: VMX: Convert vcpu_vmx.exit_reason to a union Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 16/26] KVM: x86: Export kvm_mmu_gva_to_gpa_{read,write}() for SGX (VMX) Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 17/26] KVM: x86: Define new #PF SGX error code bit Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 18/26] KVM: x86: Add support for reverse CPUID lookup of scattered features Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 19/26] KVM: x86: Add reverse-CPUID lookup support for scattered SGX features Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 20/26] KVM: VMX: Add basic handling of VM-Exit from SGX enclave Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 21/26] KVM: VMX: Frame in ENCLS handler for SGX virtualization Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 22/26] KVM: VMX: Add SGX ENCLS[ECREATE] handler to enforce CPUID restrictions Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 23/26] KVM: VMX: Add emulation of SGX Launch Control LE hash MSRs Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 24/26] KVM: VMX: Add ENCLS[EINIT] handler to support SGX Launch Control (LC) Kai Huang
2021-02-13 13:29 ` [RFC PATCH v5 25/26] KVM: VMX: Enable SGX virtualization for SGX1, SGX2 and LC Kai Huang
2021-02-13 13:30 ` [RFC PATCH v5 26/26] KVM: x86: Add capability to grant VM access to privileged SGX attribute Kai Huang
2021-02-16 18:48 ` [RFC PATCH v5 00/26] KVM SGX virtualization support Dave Hansen
2021-02-16 19:15   ` Sean Christopherson
2021-02-16 20:58   ` Huang, Kai

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