[edk2-devel] [edk2-platforms][PATCH V3 1/1] WhiskeylakeOpenBoardPkg: Update PCDs to enable stack sharing
Chiu, Chasel
chasel.chiu at intel.com
Wed Dec 18 01:59:46 UTC 2019
Reviewed-by: Chasel Chiu <chasel.chiu at intel.com>
> -----Original Message-----
> From: Kubacki, Michael A <michael.a.kubacki at intel.com>
> Sent: Wednesday, December 18, 2019 6:52 AM
> To: devel at edk2.groups.io
> Cc: Chiu, Chasel <chasel.chiu at intel.com>; Desimone, Nathaniel L
> <nathaniel.l.desimone at intel.com>
> Subject: [edk2-platforms][PATCH V3 1/1] WhiskeylakeOpenBoardPkg: Update
> PCDs to enable stack sharing
>
> From: "Agyeman, Prince" <prince.agyeman at intel.com>
>
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2409
>
> Updated WhiskeylakeURvp PCDs to enable FSP/BL stack sharing.
>
> This fixes the boot failure seen with the latest Coffee Lake (CFL) FSP binary (v
> 7.0.68.41).
>
> Cc: Chasel Chiu <chasel.chiu at intel.com>
> Cc: Nate DeSimone <nathaniel.l.desimone at intel.com>
> Cc: Michael Kubacki <michael.a.kubacki at intel.com>
> Co-authored-by: Michael Kubacki <michael.a.kubacki at intel.com>
> Signed-off-by: Prince Agyeman <prince.agyeman at intel.com>
> Reviewed-by: Chasel Chiu <chasel.chiu at intel.com>
> ---
>
> Notes:
> 1. Michael Kubacki is taking over patch ownership since Prince
> is out of office.
>
> V3 Change:
> - Changed the value of PcdPeiTemporaryRamStackSize to 0x30000
> to exceed the minimum stack size specified in the Coffee Lake
> FSP Integration Guide (160KB / 0x28000) with some padding.
>
> V2 Change:
> - The value of PcdPeiTemporaryRamStackSize was changed from
> 0x40000
> to 0x28000 to exactly meet the minimum stack size specified in
> the Coffee Lake FSP Integration Guide. Note that the memory
> initialization code in the FSP previously exceeded the available
> stack size.
>
>
> Platform/Intel/WhiskeylakeOpenBoardPkg/WhiskeylakeURvp/OpenBoardPkg
> Pcd.dsc | 11 +++++------
> 1 file changed, 5 insertions(+), 6 deletions(-)
>
> diff --git
> a/Platform/Intel/WhiskeylakeOpenBoardPkg/WhiskeylakeURvp/OpenBoardP
> kgPcd.dsc
> b/Platform/Intel/WhiskeylakeOpenBoardPkg/WhiskeylakeURvp/OpenBoardP
> kgPcd.dsc
> index 906f7b7ade..1ae51d9d5e 100644
> ---
> a/Platform/Intel/WhiskeylakeOpenBoardPkg/WhiskeylakeURvp/OpenBoardP
> kgPcd.dsc
> +++
> b/Platform/Intel/WhiskeylakeOpenBoardPkg/WhiskeylakeURvp/OpenBoardP
> k
> +++ gPcd.dsc
> @@ -54,15 +54,14 @@
> gSiPkgTokenSpaceGuid.PcdTsegSize|0x1000000
>
> #
> - # FSP API mode does not share stack with the boot loader,
> - # so FSP needs more temporary memory for FSP heap + stack size.
> + # When sharing stack with boot loader, FSP only needs small temp ram
> + for heap
> #
> - gIntelFsp2PkgTokenSpaceGuid.PcdFspTemporaryRamSize|0x26000
> + gIntelFsp2PkgTokenSpaceGuid.PcdFspTemporaryRamSize|0x10000
> +
> #
> - # FSP API mode does not need to enlarge the boot loader stack size
> - # since the stacks are separate.
> + # Boot loader stack size has to be big enough to executing FSP
> #
> - gSiPkgTokenSpaceGuid.PcdPeiTemporaryRamStackSize|0x20000
> + gSiPkgTokenSpaceGuid.PcdPeiTemporaryRamStackSize|0x30000
>
> gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress|0xE0000000
>
> gMinPlatformPkgTokenSpaceGuid.PcdPciExpressRegionLength|0x10000000
> --
> 2.16.2.windows.1
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