Refer to Uefi spec 2.10 section 11.11.2, add a new retval
EFI_NOT_FOUND to EFI_ADAPTER_INFORMATION_PROTOCOL.GetInformation().
Reference: [mantis #1866] - GetInfo() of Adapter Information
Protocol should have a provision for IHV to return no data.
Cc: Liming Gao <gaolim...@byosoft.com.cn>
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Zhiguang Liu <zhiguang....@intel.com>
Signed-off-by: Qingyu <qingyu.sh...@intel.com>
Signed-off-by: Gahan Saraiya <gahan.sara...@intel.com>
---
MdePkg/Include/Protocol/AdapterInformation.h | 5 ++++-
MdePkg/Library/DxeHstiLib/HstiAip.c | 5 ++++-
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/MdePkg/Include/Protocol/AdapterInformation.h
b/MdePkg/Include/Protocol/AdapterInformation.h
index ed19e5736c3c..8e4448eb0f87 100644
--- a/MdePkg/Include/Protocol/AdapterInformation.h
+++ b/MdePkg/Include/Protocol/AdapterInformation.h
@@ -140,7 +140,9 @@ typedef struct {
This function returns information of type InformationType from the adapter.
If an adapter does not support the requested informational type, then
- EFI_UNSUPPORTED is returned.
+ EFI_UNSUPPORTED is returned. If an adapter does not contain Information for
+ the requested InformationType, it fills InformationBlockSize with 0 and
+ returns EFI_NOT_FOUND.
@param[in] This A pointer to the
EFI_ADAPTER_INFORMATION_PROTOCOL instance.
@param[in] InformationType A pointer to an EFI_GUID that defines the
contents of InformationBlock.
@@ -150,6 +152,7 @@ typedef struct {
@retval EFI_SUCCESS The InformationType information was
retrieved.
@retval EFI_UNSUPPORTED The InformationType is not known.
+ @retval EFI_NOT_FOUND Information is not available for the
requested information type.
@retval EFI_DEVICE_ERROR The device reported an error.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to
a lack of resources.
@retval EFI_INVALID_PARAMETER This is NULL.
diff --git a/MdePkg/Library/DxeHstiLib/HstiAip.c
b/MdePkg/Library/DxeHstiLib/HstiAip.c
index a2454ffeaa7a..523a712e6f6e 100644
--- a/MdePkg/Library/DxeHstiLib/HstiAip.c
+++ b/MdePkg/Library/DxeHstiLib/HstiAip.c
@@ -12,7 +12,9 @@
This function returns information of type InformationType from the adapter.
If an adapter does not support the requested informational type, then
- EFI_UNSUPPORTED is returned.
+ EFI_UNSUPPORTED is returned. If an adapter does not contain Information for
+ the requested InformationType, it fills InformationBlockSize with 0 and
+ returns EFI_NOT_FOUND.
@param[in] This A pointer to the
EFI_ADAPTER_INFORMATION_PROTOCOL instance.
@param[in] InformationType A pointer to an EFI_GUID that defines the
contents of InformationBlock.
@@ -22,6 +24,7 @@
@retval EFI_SUCCESS The InformationType information was
retrieved.
@retval EFI_UNSUPPORTED The InformationType is not known.
+ @retval EFI_NOT_FOUND Information is not available for the
requested information type.
@retval EFI_DEVICE_ERROR The device reported an error.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to
a lack of resources.
@retval EFI_INVALID_PARAMETER This is NULL.
--
2.39.1.windows.1
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