This will give us an exclusive access to the PciIo of this device after it was started and until it will be stopped.
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <ler...@redhat.com> Signed-off-by: Liran Alon <liran.a...@oracle.com> --- OvmfPkg/PvScsiDxe/PvScsi.c | 29 ++++++++++++++++++++++++++++- OvmfPkg/PvScsiDxe/PvScsi.h | 1 + 2 files changed, 29 insertions(+), 1 deletion(-) diff --git a/OvmfPkg/PvScsiDxe/PvScsi.c b/OvmfPkg/PvScsiDxe/PvScsi.c index 76fc1eb910f2..e0380d729b3c 100644 --- a/OvmfPkg/PvScsiDxe/PvScsi.c +++ b/OvmfPkg/PvScsiDxe/PvScsi.c @@ -412,11 +412,23 @@ PvScsiDriverBindingStart ( return EFI_OUT_OF_RESOURCES; } - Status = PvScsiInit (Dev); + Status = gBS->OpenProtocol ( + ControllerHandle, + &gEfiPciIoProtocolGuid, + (VOID **)&Dev->PciIo, + This->DriverBindingHandle, + ControllerHandle, + EFI_OPEN_PROTOCOL_BY_DRIVER + ); if (EFI_ERROR (Status)) { goto FreePvScsi; } + Status = PvScsiInit (Dev); + if (EFI_ERROR (Status)) { + goto ClosePciIo; + } + // // Setup complete, attempt to export the driver instance's PassThru interface // @@ -436,6 +448,14 @@ PvScsiDriverBindingStart ( UninitDev: PvScsiUninit (Dev); +ClosePciIo: + gBS->CloseProtocol ( + ControllerHandle, + &gEfiPciIoProtocolGuid, + This->DriverBindingHandle, + ControllerHandle + ); + FreePvScsi: FreePool (Dev); @@ -481,6 +501,13 @@ PvScsiDriverBindingStop ( PvScsiUninit (Dev); + gBS->CloseProtocol ( + ControllerHandle, + &gEfiPciIoProtocolGuid, + This->DriverBindingHandle, + ControllerHandle + ); + FreePool (Dev); return EFI_SUCCESS; diff --git a/OvmfPkg/PvScsiDxe/PvScsi.h b/OvmfPkg/PvScsiDxe/PvScsi.h index dd3e0c68e6da..e1e5ae18ebf2 100644 --- a/OvmfPkg/PvScsiDxe/PvScsi.h +++ b/OvmfPkg/PvScsiDxe/PvScsi.h @@ -19,6 +19,7 @@ typedef struct { UINT32 Signature; + EFI_PCI_IO_PROTOCOL *PciIo; UINT8 MaxTarget; UINT8 MaxLun; EFI_EXT_SCSI_PASS_THRU_PROTOCOL PassThru; -- 2.20.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#56315): https://edk2.groups.io/g/devel/message/56315 Mute This Topic: https://groups.io/mt/72544115/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
