[edk2-devel] [edk2-platforms] Platform/Loongson: Set common page size to 16k

[maobibo]

在 2023/5/11 09:33, xianglai li 写道:
> Default page size is 16K for loongarch qemu tcg code section
> separated with data section with 16K page alignment,
> And data write operation in the same page with code section
> will cause qemu TB flush.
Xianglai,

Could you add more data supporting? such as size of dxe ffs image and 
dxe compaction ffs.

Regards
Bibo, Mao

> 
> Cc: Ard Biesheuvel <ardb+tianocore at kernel.org>
> Cc: Bibo Mao <maobibo at loongson.cn>
> Cc: Chao Li <lichao at loongson.cn>
> Cc: Leif Lindholm <quic_llindhol at quicinc.com>
> Cc: Liming Gao <gaoliming at byosoft.com.cn>
> Cc: Michael D Kinney <michael.d.kinney at intel.com>
> Signed-off-by: xianglai li <lixianglai at loongson.cn>
> ---
>  Platform/Loongson/LoongArchQemuPkg/Loongson.dsc | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/Platform/Loongson/LoongArchQemuPkg/Loongson.dsc b/Platform/Loongson/LoongArchQemuPkg/Loongson.dsc
> index 6875e39cc6..13b27d84b8 100644
> --- a/Platform/Loongson/LoongArchQemuPkg/Loongson.dsc
> +++ b/Platform/Loongson/LoongArchQemuPkg/Loongson.dsc
> @@ -61,8 +61,13 @@
>  [BuildOptions.LOONGARCH64.EDKII.SEC]
>    *_*_*_CC_FLAGS                 =
>  
> +#
> +# default page size is 16K for loongarch qemu tcg
> +# code section separated with data section with 16K page alignment, else data
> +# write operation in the same page with code section will cause qemu TB flush
> +#
>  [BuildOptions.common.EDKII.DXE_CORE,BuildOptions.common.EDKII.DXE_DRIVER,BuildOptions.common.EDKII.UEFI_DRIVER,BuildOptions.common.EDKII.UEFI_APPLICATION]
> -  GCC:*_*_*_DLINK_FLAGS = -z common-page-size=0x1000
> +  GCC:*_*_*_DLINK_FLAGS = -z common-page-size=0x4000
>  
>  [BuildOptions.common.EDKII.DXE_RUNTIME_DRIVER]
>    GCC:*_*_LOONGARCH64_DLINK_FLAGS = -z common-page-size=0x10000



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