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| author | Hao Wu <hao.a.wu@intel.com> | 2016-08-22 13:55:52 +0800 |
|---|---|---|
| committer | Hao Wu <hao.a.wu@intel.com> | 2016-09-06 15:31:29 +0800 |
| commit | 3c52deafda51b16f665c44eec967ed03689932f9 (patch) | |
| tree | d50f517b18ce5b78e1d57bc69fbb5870b4204b52 /MdeModulePkg | |
| parent | 114358eaa856d4f48ecb0a9da68d9bb7659226c7 (diff) | |
| download | edk2-3c52deafda51b16f665c44eec967ed03689932f9.tar.gz edk2-3c52deafda51b16f665c44eec967ed03689932f9.tar.bz2 edk2-3c52deafda51b16f665c44eec967ed03689932f9.zip | |
MdeModulePkg NvmExpressDxe: Add buffer alignment check in PassThru API
According to the UEFI spec, the 'TransferBuffer' and 'MetadataBuffer' used
in a data transfer should be aligned on the boundary specified by the
IoAlign field in the EFI_NVM_EXPRESS_PASS_THRU_MODE structure.
This commit adds this check to follow the spec.
Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Diffstat (limited to 'MdeModulePkg')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c | 55 |
1 files changed, 34 insertions, 21 deletions
diff --git a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c index ec7507e4c2..6b29260858 100644 --- a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c +++ b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c @@ -357,27 +357,28 @@ NvmExpressPassThru ( IN EFI_EVENT Event OPTIONAL
)
{
- NVME_CONTROLLER_PRIVATE_DATA *Private;
- EFI_STATUS Status;
- EFI_PCI_IO_PROTOCOL *PciIo;
- NVME_SQ *Sq;
- NVME_CQ *Cq;
- UINT16 QueueId;
- UINT32 Bytes;
- UINT16 Offset;
- EFI_EVENT TimerEvent;
- EFI_PCI_IO_PROTOCOL_OPERATION Flag;
- EFI_PHYSICAL_ADDRESS PhyAddr;
- VOID *MapData;
- VOID *MapMeta;
- VOID *MapPrpList;
- UINTN MapLength;
- UINT64 *Prp;
- VOID *PrpListHost;
- UINTN PrpListNo;
- UINT32 Data;
- NVME_PASS_THRU_ASYNC_REQ *AsyncRequest;
- EFI_TPL OldTpl;
+ NVME_CONTROLLER_PRIVATE_DATA *Private;
+ EFI_STATUS Status;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ NVME_SQ *Sq;
+ NVME_CQ *Cq;
+ UINT16 QueueId;
+ UINT32 Bytes;
+ UINT16 Offset;
+ EFI_EVENT TimerEvent;
+ EFI_PCI_IO_PROTOCOL_OPERATION Flag;
+ EFI_PHYSICAL_ADDRESS PhyAddr;
+ VOID *MapData;
+ VOID *MapMeta;
+ VOID *MapPrpList;
+ UINTN MapLength;
+ UINT64 *Prp;
+ VOID *PrpListHost;
+ UINTN PrpListNo;
+ UINT32 IoAlign;
+ UINT32 Data;
+ NVME_PASS_THRU_ASYNC_REQ *AsyncRequest;
+ EFI_TPL OldTpl;
//
// check the data fields in Packet parameter.
@@ -394,6 +395,18 @@ NvmExpressPassThru ( return EFI_INVALID_PARAMETER;
}
+ //
+ // Buffer alignment check for TransferBuffer & MetadataBuffer.
+ //
+ IoAlign = This->Mode->IoAlign;
+ if (IoAlign > 0 && (((UINTN) Packet->TransferBuffer & (IoAlign - 1)) != 0)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (IoAlign > 0 && (((UINTN) Packet->MetadataBuffer & (IoAlign - 1)) != 0)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
Private = NVME_CONTROLLER_PRIVATE_DATA_FROM_PASS_THRU (This);
PciIo = Private->PciIo;
MapData = NULL;
|