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From: "Yao, Jiewen" <jiewen.yao@intel.com>
To: Brijesh Singh <brijesh.singh@amd.com>,
	"devel@edk2.groups.io" <devel@edk2.groups.io>
Cc: James Bottomley <jejb@linux.ibm.com>,
	"Xu, Min M" <min.m.xu@intel.com>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	"Justen, Jordan L" <jordan.l.justen@intel.com>,
	Ard Biesheuvel <ardb+tianocore@kernel.org>,
	Erdem Aktas <erdemaktas@google.com>,
	Michael Roth <Michael.Roth@amd.com>,
	Gerd Hoffmann <kraxel@redhat.com>
Subject: Re: [PATCH v6 00/29] Add AMD Secure Nested Paging (SEV-SNP) support
Date: Mon, 13 Sep 2021 00:33:03 +0000	[thread overview]
Message-ID: <PH0PR11MB48851B59D950555EB6B769838CD99@PH0PR11MB4885.namprd11.prod.outlook.com> (raw)
In-Reply-To: <7d9bdf95-48d0-2952-72bf-aff42a0ef76c@amd.com>

Hi Brijesh
I think it is OK to leave MpFunc.nasm in this series.
We can revisit later.

Thank you
Yao Jiewen

> -----Original Message-----
> From: Brijesh Singh <brijesh.singh@amd.com>
> Sent: Monday, September 13, 2021 6:56 AM
> To: Yao, Jiewen <jiewen.yao@intel.com>; devel@edk2.groups.io
> Cc: James Bottomley <jejb@linux.ibm.com>; Xu, Min M <min.m.xu@intel.com>;
> Tom Lendacky <thomas.lendacky@amd.com>; Justen, Jordan L
> <jordan.l.justen@intel.com>; Ard Biesheuvel <ardb+tianocore@kernel.org>;
> Erdem Aktas <erdemaktas@google.com>; Michael Roth
> <Michael.Roth@amd.com>; Gerd Hoffmann <kraxel@redhat.com>
> Subject: Re: [PATCH v6 00/29] Add AMD Secure Nested Paging (SEV-SNP)
> support
> 
> Hi Yao,
> 
> I am going through implementing your feedback. I have covered most of
> it. But your comment on moving some of the changes from MpFunc.nasm to
> Sev.nasm may make code harder to read. It is mainly because the GPA
> registration and Topo check are not self-contained routines. They depend
> on some previous register states and need to jump to different paths
> based on the condition. All those jump are in generic AP init routines.
> 
> As you can see, the changes in MpFunc.nasm are more petite, and if it's
> a big issue, we can revisit it later and devise a proposal to move the
> big chunk of generic code in a separate file then have TDX and SEV call
> into it. At that time, we can add OneTimeCall or OneTimeReturn macros
> etc., to jump between different files to make it more readable. Would
> you please let me know if that is acceptable?
> 
> -Brijesh
> 
> On 9/6/21 9:36 PM, Yao, Jiewen wrote:
> >
> > 0023-UefiCpuPkg-MpLib-add-support-to-register-GHCB-GPA-when-SEV-SNP-
> is-enabled
> > 1) See 0008.
> > 2) For MpFuncs.nasm, I recommend to move AmdSev specific initialization to a
> standalone file, such as Sev.nasm
> >
> > 0024-UefiCpuPkg-MpInitLib-use-BSP-to-do-extended-topology-check
> > See 0023
> >

      reply	other threads:[~2021-09-13  0:33 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-01 16:16 [PATCH v6 00/29] Add AMD Secure Nested Paging (SEV-SNP) support Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 01/29] OvmfPkg: reserve SNP secrets page Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 02/29] OvmfPkg: reserve CPUID page for SEV-SNP Brijesh Singh
2021-09-02  8:04   ` Gerd Hoffmann
2021-09-02 12:28     ` Brijesh Singh
2021-09-02 21:17       ` Brijesh Singh
2021-09-03  6:28         ` Gerd Hoffmann
2021-09-03 11:56           ` [edk2-devel] " Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 03/29] OvmfPkg/ResetVector: introduce SEV-SNP boot block GUID Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 04/29] OvmfPkg/ResetVector: invalidate the GHCB page Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 05/29] OvmfPkg/ResetVector: check the vmpl level Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 06/29] OvmfPkg/ResetVector: pre-validate the data pages used in SEC phase Brijesh Singh
2021-09-02  8:20   ` Gerd Hoffmann
2021-09-06  1:10     ` [edk2-devel] " Min Xu
2021-09-06 12:16       ` Gerd Hoffmann
2021-09-06 13:19         ` Min Xu
2021-09-07  7:07           ` Gerd Hoffmann
2021-09-07 13:27             ` Brijesh Singh
2021-09-08  6:36               ` Min Xu
2021-09-14  3:49             ` Yao, Jiewen
2021-09-16  7:42               ` Gerd Hoffmann
2021-09-01 16:16 ` [PATCH v6 07/29] OvmfPkg/ResetVector: use SEV-SNP-validated CPUID values Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 08/29] UefiCpuPkg: Define the SEV-SNP specific dynamic PCDs Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 09/29] OvmfPkg/MemEncryptSevLib: add MemEncryptSevSnpEnabled() Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 10/29] OvmfPkg/SecMain: move SEV specific routines in AmdSev.c Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 11/29] OvmfPkg/SecMain: register GHCB gpa for the SEV-SNP guest Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 12/29] OvmfPkg/VmgExitLib: use SEV-SNP-validated CPUID values Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 13/29] OvmfPkg/PlatformPei: register GHCB gpa for the SEV-SNP guest Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 14/29] OvmfPkg/AmdSevDxe: do not use extended PCI config space Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 15/29] OvmfPkg/MemEncryptSevLib: add support to validate system RAM Brijesh Singh
2021-09-02  9:50   ` Gerd Hoffmann
2021-09-02 13:34     ` Brijesh Singh
2021-09-03  7:04       ` Gerd Hoffmann
2021-09-01 16:16 ` [PATCH v6 16/29] OvmfPkg/BaseMemEncryptSevLib: skip the pre-validated " Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 17/29] OvmfPkg/MemEncryptSevLib: add support to validate > 4GB memory in PEI phase Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 18/29] OvmfPkg/SecMain: pre-validate the memory used for decompressing Fv Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 19/29] OvmfPkg/PlatformPei: validate the system RAM when SNP is active Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 20/29] OvmfPkg/PlatformPei: set the SEV-SNP enabled PCD Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 21/29] OvmfPkg/PlatformPei: set the Hypervisor Features PCD Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 22/29] MdePkg/GHCB: increase the GHCB protocol max version Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 23/29] UefiCpuPkg/MpLib: add support to register GHCB GPA when SEV-SNP is enabled Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 24/29] UefiCpuPkg/MpInitLib: use BSP to do extended topology check Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 25/29] OvmfPkg/MemEncryptSevLib: change the page state in the RMP table Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 26/29] OvmfPkg/MemEncryptSevLib: skip page state change for Mmio address Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 27/29] OvmfPkg/PlatformPei: mark cpuid and secrets memory reserved in EFI map Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 28/29] OvmfPkg/AmdSev: expose the SNP reserved pages through configuration table Brijesh Singh
2021-09-01 16:16 ` [PATCH v6 29/29] UefiCpuPkg/MpInitLib: Use SEV-SNP AP Creation NAE event to launch APs Brijesh Singh
2021-09-07  2:36 ` [PATCH v6 00/29] Add AMD Secure Nested Paging (SEV-SNP) support Yao, Jiewen
2021-09-08  2:29   ` Min Xu
2021-09-08  6:03     ` Yao, Jiewen
2021-09-08 19:45   ` Brijesh Singh
2021-09-09  0:31     ` Min Xu
2021-09-09 10:51       ` Brijesh Singh
2021-09-09 11:22         ` Gerd Hoffmann
2021-09-09 11:40           ` Brijesh Singh
2021-09-09 11:45             ` [edk2-devel] " Min Xu
2021-09-09 11:55         ` Yao, Jiewen
2021-09-12 22:55   ` Brijesh Singh
2021-09-13  0:33     ` Yao, Jiewen [this message]

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