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From: "Lendacky, Thomas via groups.io" <thomas.lendacky=amd.com@groups.io>
To: "Ni, Ray" <ray.ni@intel.com>,
	"devel@edk2.groups.io" <devel@edk2.groups.io>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>,
	"Aktas, Erdem" <erdemaktas@google.com>,
	Gerd Hoffmann <kraxel@redhat.com>,
	"Yao, Jiewen" <jiewen.yao@intel.com>,
	Laszlo Ersek <lersek@redhat.com>,
	Liming Gao <gaoliming@byosoft.com.cn>,
	"Kinney, Michael D" <michael.d.kinney@intel.com>,
	"Xu, Min M" <min.m.xu@intel.com>,
	"Liu, Zhiguang" <zhiguang.liu@intel.com>,
	"Kumar, Rahul R" <rahul.r.kumar@intel.com>,
	Michael Roth <michael.roth@amd.com>
Subject: Re: [edk2-devel] [PATCH 13/16] UefiCpuPkg/MpInitLib: Always use AP Create if PcdSevSnpApicIds is set
Date: Fri, 2 Feb 2024 16:58:27 -0600	[thread overview]
Message-ID: <6de1de3b-5ae5-82c9-664f-ee93edd8f38f@amd.com> (raw)
In-Reply-To: <MN6PR11MB8244602573A336900C2E0DE58C422@MN6PR11MB8244.namprd11.prod.outlook.com>

On 2/2/24 00:20, Ni, Ray wrote:
> 
>> +      if (SevSnpUseCreateAP (CpuMpData)) {
> 
> 1. Is it possible to rename "SevSnpUseCreateAP" to some name starting
> with "IsXXX"?
> I originally mixed it with SevSnpCreateAP() and thought you created a
> bug.

"Is" doesn't really fit for this, how about UseSevSnpCreateAP() or 
CanUseSevSnpCreateAP()?

> 
> 
>> +    GhcbApicIds = (GHCB_APIC_IDS *)(UINTN)PcdGet64 (PcdSevSnpApicIds);
> 
> 2. Can you define a GUIDed HOB to hold the contents instead of dynamic PCDs?
> Dynamic PCDs cannot tell whether the value is updated in earlier code or still
> holds the default value.
> Also, I prefer to minimize the dynamic PCD usage in CPU code.

Yep, will do.

Thanks,
Tom

> 


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  reply	other threads:[~2024-02-02 22:58 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-26 22:12 [edk2-devel] [PATCH 00/16] Provide SEV-SNP support for running under an SVSM Lendacky, Thomas via groups.io
2024-01-26 22:13 ` [edk2-devel] [PATCH 01/16] OvmfPkg/BaseMemEncryptSevLib: Re-organize page state change support Lendacky, Thomas via groups.io
2024-01-29 12:59   ` Gerd Hoffmann
2024-01-29 15:39     ` Lendacky, Thomas via groups.io
2024-01-26 22:13 ` [edk2-devel] [PATCH 02/16] MdePkg/Register/Amd: Define the SVSM related information Lendacky, Thomas via groups.io
2024-01-29 13:12   ` Gerd Hoffmann
2024-01-26 22:13 ` [edk2-devel] [PATCH 03/16] MdePkg/BaseLib: Add a new VMGEXIT instruction invocation for SVSM Lendacky, Thomas via groups.io
2024-01-29 13:22   ` Gerd Hoffmann
2024-01-29 15:51     ` Lendacky, Thomas via groups.io
2024-01-30 11:51       ` Gerd Hoffmann
2024-01-31 18:30         ` Lendacky, Thomas via groups.io
2024-02-01  8:35           ` Gerd Hoffmann
2024-01-26 22:13 ` [edk2-devel] [PATCH 04/16] UefiCpuPkg/CcExitLib: Extend the CcExitLib library to support an SVSM Lendacky, Thomas via groups.io
2024-02-02  6:06   ` Ni, Ray
2024-01-26 22:13 ` [edk2-devel] [PATCH 05/16] Ovmfpkg/CcExitLib: Extend CcExitLib to handle SVSM related services Lendacky, Thomas via groups.io
2024-01-26 22:13 ` [edk2-devel] [PATCH 06/16] OvmfPkg: Create a calling area used to communicate with the SVSM Lendacky, Thomas via groups.io
2024-01-26 22:13 ` [edk2-devel] [PATCH 07/16] OvmfPkg/CcExitLib: Add support for the SVSM_CORE_PVALIDATE call Lendacky, Thomas via groups.io
2024-01-29 14:40   ` Gerd Hoffmann
2024-01-29 17:34     ` Lendacky, Thomas via groups.io
2024-01-31 18:40       ` Lendacky, Thomas via groups.io
2024-01-26 22:13 ` [edk2-devel] [PATCH 08/16] OvmfPkg/CcExitLib: Add support for the SVSM create/delete vCPU calls Lendacky, Thomas via groups.io
2024-01-29 14:46   ` Gerd Hoffmann
2024-01-29 17:37     ` Lendacky, Thomas via groups.io
2024-01-26 22:13 ` [edk2-devel] [PATCH 09/16] UefiCpuPkg/MpInitLib: Use CcExitSnpVmsaRmpAdjust() to set/clear VMSA Lendacky, Thomas via groups.io
2024-02-02  6:07   ` Ni, Ray
2024-01-26 22:13 ` [edk2-devel] [PATCH 10/16] MdePkg: GHCB APIC ID retrieval support definitions Lendacky, Thomas via groups.io
2024-01-29 14:52   ` Gerd Hoffmann
2024-01-26 22:13 ` [edk2-devel] [PATCH 11/16] UefiCpuPkg: Create APIC ID list PCD Lendacky, Thomas via groups.io
2024-01-29 14:57   ` Gerd Hoffmann
2024-02-02  6:08   ` Ni, Ray
2024-02-02 22:56     ` Lendacky, Thomas via groups.io
2024-01-26 22:13 ` [edk2-devel] [PATCH 12/16] OvmfPkg/PlatformPei: Retrieve APIC IDs from the hypervisor Lendacky, Thomas via groups.io
2024-01-29 15:00   ` Gerd Hoffmann
2024-01-29 17:49     ` Lendacky, Thomas via groups.io
2024-01-30 11:25       ` Gerd Hoffmann
2024-01-26 22:13 ` [edk2-devel] [PATCH 13/16] UefiCpuPkg/MpInitLib: Always use AP Create if PcdSevSnpApicIds is set Lendacky, Thomas via groups.io
2024-01-29 15:21   ` Gerd Hoffmann
2024-01-29 18:00     ` Lendacky, Thomas via groups.io
2024-02-02  6:20   ` Ni, Ray
2024-02-02 22:58     ` Lendacky, Thomas via groups.io [this message]
2024-02-05  5:06       ` Ni, Ray
2024-01-26 22:13 ` [edk2-devel] [PATCH 14/16] UefiCpuPkg/MpInitLib: AP creation support under an SVSM Lendacky, Thomas via groups.io
2024-01-29 15:21   ` Gerd Hoffmann
2024-02-02  6:48   ` Ni, Ray
2024-01-26 22:13 ` [edk2-devel] [PATCH 15/16] Ovmfpkg/CcExitLib: Provide SVSM discovery support Lendacky, Thomas via groups.io
2024-01-29 15:23   ` Gerd Hoffmann
2024-01-29 18:04     ` Lendacky, Thomas via groups.io
2024-01-30 11:38       ` Gerd Hoffmann
2024-01-30 16:13         ` Lendacky, Thomas via groups.io
2024-01-26 22:13 ` [edk2-devel] [PATCH 16/16] OvmfPkg/BaseMemEncryptLib: Check for presence of an SVSM when not at VMPL0 Lendacky, Thomas via groups.io
2024-01-29 15:24   ` Gerd Hoffmann
2024-01-27  4:04 ` [edk2-devel] [PATCH 00/16] Provide SEV-SNP support for running under an SVSM Yao, Jiewen
2024-01-27 17:48   ` Lendacky, Thomas via groups.io
2024-01-28  4:11     ` Yao, Jiewen
     [not found]     ` <17AE677D909D4A42.23935@groups.io>
2024-02-09  8:11       ` Yao, Jiewen
2024-02-09 16:17         ` Lendacky, Thomas via groups.io

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