This will give us an exclusive access to the PciIo of this device after it was started and until is will be stopped.
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2390 Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Nikita Leshenko <nikita.leshche...@oracle.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Reviewed-by: Aaron Young <aaron.yo...@oracle.com> Reviewed-by: Liran Alon <liran.a...@oracle.com> --- OvmfPkg/MptScsiDxe/MptScsi.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/OvmfPkg/MptScsiDxe/MptScsi.c b/OvmfPkg/MptScsiDxe/MptScsi.c index d72af2b3f7..22001da763 100644 --- a/OvmfPkg/MptScsiDxe/MptScsi.c +++ b/OvmfPkg/MptScsiDxe/MptScsi.c @@ -40,6 +40,7 @@ typedef struct { UINT32 Signature; EFI_EXT_SCSI_PASS_THRU_PROTOCOL PassThru; EFI_EXT_SCSI_PASS_THRU_MODE PassThruMode; + EFI_PCI_IO_PROTOCOL *PciIo; } MPT_SCSI_DEV; #define MPT_SCSI_FROM_PASS_THRU(PassThruPtr) \ @@ -270,6 +271,18 @@ MptScsiControllerStart ( Dev->Signature = MPT_SCSI_DEV_SIGNATURE; + Status = gBS->OpenProtocol ( + ControllerHandle, + &gEfiPciIoProtocolGuid, + (VOID **)&Dev->PciIo, + This->DriverBindingHandle, + ControllerHandle, + EFI_OPEN_PROTOCOL_BY_DRIVER + ); + if (EFI_ERROR (Status)) { + goto Done; + } + // // Host adapter channel, doesn't exist // @@ -299,6 +312,15 @@ MptScsiControllerStart ( Done: if (EFI_ERROR (Status)) { + if (Dev->PciIo) { + gBS->CloseProtocol ( + ControllerHandle, + &gEfiPciIoProtocolGuid, + This->DriverBindingHandle, + ControllerHandle + ); + } + FreePool (Dev); } @@ -339,6 +361,13 @@ MptScsiControllerStop ( &Dev->PassThru ); + gBS->CloseProtocol ( + ControllerHandle, + &gEfiPciIoProtocolGuid, + This->DriverBindingHandle, + ControllerHandle + ); + FreePool (Dev); return Status; -- 2.20.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#54913): https://edk2.groups.io/g/devel/message/54913 Mute This Topic: https://groups.io/mt/71570013/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
