REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1243
Sata device path format:Sata(HPN, PMPN, LUN)
According to UEFI Spec, the PMPN is an integer between
0 and 65535 and is optional. If not provided, the default is 0xFFFF.
This commit is to do the enhancement for Sata device path
when optional para is not specified.
Cc: Ruiyu Ni <ruiyu...@intel.com>
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Liming Gao <liming....@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Dandan Bi <dandan...@intel.com>
---
MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
index c5f3764fc0..7e33160ee9 100644
--- a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
+++ b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
@@ -3414,11 +3414,19 @@ DevPathFromTextSata (
MESSAGING_DEVICE_PATH,
MSG_SATA_DP,
(UINT16) sizeof (SATA_DEVICE_PATH)
);
Sata->HBAPortNumber = (UINT16) Strtoi (Param1);
- Sata->PortMultiplierPortNumber = (UINT16) Strtoi (Param2);
+
+ //
+ // According to UEFI spec, if PMPN is not provided, the default is 0xFFFF
+ //
+ if (*Param2 == L'\0' ) {
+ Sata->PortMultiplierPortNumber = 0xFFFF;
+ } else {
+ Sata->PortMultiplierPortNumber = (UINT16) Strtoi (Param2);
+ }
Sata->Lun = (UINT16) Strtoi (Param3);
return (EFI_DEVICE_PATH_PROTOCOL *) Sata;
}
--
2.18.0.windows.1
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