回复: [edk2-devel] [PATCH v2 2/7] MdePkg: Allow PcdFSBClock to by Dynamic

[gaoliming via groups.io]

Ray:

 The problem is that PcdFSBClock is configured as Dynamic on OVMF. 

 

Anthony:

 Have you any suggestion for this problem?

 

Thanks

Liming

发件人: devel at edk2.groups.io <devel at edk2.groups.io> 代表 ray_linn at hotmail.com
发送时间: 2022年7月7日 12:13
收件人: Anthony PERARD <anthony.perard at citrix.com>; devel at edk2.groups.io
主题: Re: [edk2-devel] [PATCH v2 2/7] MdePkg: Allow PcdFSBClock to by Dynamic

 

On Thu, Mar 25, 2021 at 11:47 PM, Anthony PERARD wrote:

- ## This value is used to configure X86 Processor FSB clock.
- # @Prompt FSB Clock.
- gEfiMdePkgTokenSpaceGuid.PcdFSBClock|200000000|UINT32|0x0000000c

hi, Sir

This change caused the OVMF failed to load in QEMU when compiled with "SOURCE_DEBUG_ENABLE" as True.

the verbose message of QEMU shows:

ASSERT [SecMain] d:\myedk2\edk2\MdePkg\Library\BasePcdLibNull\PcdLib.c(95): ((BOOLEAN)(0==1))

The failure point is  PcdGet32 (PcdFSBClock) of debugtimer.c,  I  rolled back above change, then issue disappeared.







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