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3 Commits

Author SHA1 Message Date
Chao Li 2fe24171ac UefiCpuPkg: Using the new name of LoongArch CSR 0x20 register 
Since the LoongArch SPEC has adjusted the CSR 0x20 register name and
the MdePkg also added the new name, so enable it in UefiCpuPkg.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
 2024-08-30 19:54:01 +00:00
Dongyan Qian 5db0091418 UefiCpuPkg/ExceptionHandler: Fix a context error in LoongArch64 
On the LoongArch platform:
 the a0 register can be used as both a function parameter and a return value.

Due to parameter EFI_SYSTEM_CONTEXT being overwritten by an invalid context address,
when calling GetExceptionType, incorrect parameter address causes memory access exception.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4796

Cc: Chao Li <lichao@loongson.cn>
Signed-off-by: Dongyan Qian <qiandongyan@loongson.cn>
 2024-06-26 00:52:39 +00:00
Chao Li 7750468c37 UefiCpuPkg: Add CPU exception library for LoongArch 
Added LoongArch exception handler into CpuExceptionHandlerLib.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4734

Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Co-authored-by: Baoqi Zhang <zhangbaoqi@loongson.cn>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
 2024-04-16 06:00:32 +00:00