tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

MdePkg/Library/BaseIoLibIntrinsic: Fix TD MMIO read type cast 

Currently the types of casting mismatch with TD MMIO read 1, 2 and 4
bytes, that might introduce potential issues.  So fix the types as
conventional MmioRead[8|16|32] does.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Zhiquan Li <zhiquan1.li@intel.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
This commit is contained in:
Zhiquan Li 2024-01-11 22:02:20 -08:00 committed by mergify[bot]
parent 5d016fe0a0
commit da228b29bd
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
MdePkg/Library/BaseIoLibIntrinsic/IoLibInternalTdx.c
View File

@ -237,7 +237,7 @@ TdMmioRead8 (
Status = TdVmCall (TDVMCALL_MMIO, TDVMCALL_ACCESS_SIZE_1, TDVMCALL_ACCESS_READ, Address | TdSharedPageMask (), 0, &Value);
if (Status != 0) {
Value = *(volatile UINT64 *)Address;
Value = *(volatile UINT8 *)Address;
}
return (UINT8)Value;
@ -294,7 +294,7 @@ TdMmioRead16 (
Status = TdVmCall (TDVMCALL_MMIO, TDVMCALL_ACCESS_SIZE_2, TDVMCALL_ACCESS_READ, Address | TdSharedPageMask (), 0, &Value);
if (Status != 0) {
Value = *(volatile UINT64 *)Address;
Value = *(volatile UINT16 *)Address;
}
return (UINT16)Value;
@ -353,7 +353,7 @@ TdMmioRead32 (
Status = TdVmCall (TDVMCALL_MMIO, TDVMCALL_ACCESS_SIZE_4, TDVMCALL_ACCESS_READ, Address | TdSharedPageMask (), 0, &Value);
if (Status != 0) {
Value = *(volatile UINT64 *)Address;
Value = *(volatile UINT32 *)Address;
}
return (UINT32)Value;