[edk2-devel] [PATCH v3 10/17] OvmfPkg/PvScsiDxe: Enable MMIO-Space & Bus-Mastering in PCI attributes
Liran Alon
liran.alon at oracle.com
Sat Mar 28 20:00:53 UTC 2020
Enable MMIO-Space & Bus-Mastering PCI attributes when device is started.
Note that original PCI attributes are restored when device is stopped.
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567
Reviewed-by: Laszlo Ersek <lersek at redhat.com>
Signed-off-by: Liran Alon <liran.alon at oracle.com>
---
OvmfPkg/PvScsiDxe/PvScsi.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/OvmfPkg/PvScsiDxe/PvScsi.c b/OvmfPkg/PvScsiDxe/PvScsi.c
index 5566b4cce467..531bed4e5ab7 100644
--- a/OvmfPkg/PvScsiDxe/PvScsi.c
+++ b/OvmfPkg/PvScsiDxe/PvScsi.c
@@ -305,8 +305,18 @@ PvScsiSetPciAttributes (
}
//
- // TODO: Change PCI Attributes
+ // Enable MMIO-Space & Bus-Mastering
//
+ Status = Dev->PciIo->Attributes (
+ Dev->PciIo,
+ EfiPciIoAttributeOperationEnable,
+ (EFI_PCI_IO_ATTRIBUTE_MEMORY |
+ EFI_PCI_IO_ATTRIBUTE_BUS_MASTER),
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
return EFI_SUCCESS;
}
--
2.20.1
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#56543): https://edk2.groups.io/g/devel/message/56543
Mute This Topic: https://groups.io/mt/72617138/1813853
Group Owner: devel+owner at edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [edk2-devel-archive at redhat.com]
-=-=-=-=-=-=-=-=-=-=-=-
More information about the edk2-devel-archive
mailing list