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| author | Liran Alon <liran.alon@oracle.com> | 2020-03-28 23:00:47 +0300 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-03-30 16:45:07 +0000 |
| commit | a9f9d5cf5636d9757be542a2544729f343bb607e (patch) | |
| tree | a80558f1e1ca5764b3dff043dcf7f34a5d671d4c /OvmfPkg/PvScsiDxe | |
| parent | 419b30d642264bef34f9054a4adf64bf4f9e31aa (diff) | |
| download | edk2-a9f9d5cf5636d9757be542a2544729f343bb607e.tar.gz edk2-a9f9d5cf5636d9757be542a2544729f343bb607e.tar.bz2 edk2-a9f9d5cf5636d9757be542a2544729f343bb607e.zip | |
OvmfPkg/PvScsiDxe: Probe PCI devices and look for PvScsi
PvScsiControllerSupported() is called on handles passed in
by the ConnectController() boot service and if the handle is the
PVSCSI controller, the function would return success. A success
return value will attach our driver to the device.
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Liran Alon <liran.alon@oracle.com>
Message-Id: <20200328200100.60786-5-liran.alon@oracle.com>
Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
Diffstat (limited to 'OvmfPkg/PvScsiDxe')
| -rw-r--r-- | OvmfPkg/PvScsiDxe/PvScsi.c | 49 | ||||
| -rw-r--r-- | OvmfPkg/PvScsiDxe/PvScsiDxe.inf | 5 |
2 files changed, 53 insertions, 1 deletions
diff --git a/OvmfPkg/PvScsiDxe/PvScsi.c b/OvmfPkg/PvScsiDxe/PvScsi.c index 51b03f7090..9923a31d25 100644 --- a/OvmfPkg/PvScsiDxe/PvScsi.c +++ b/OvmfPkg/PvScsiDxe/PvScsi.c @@ -9,7 +9,11 @@ **/
+#include <IndustryStandard/Pci.h>
+#include <IndustryStandard/PvScsi.h>
+#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
+#include <Protocol/PciIo.h>
#include <Uefi/UefiSpec.h>
//
@@ -31,7 +35,50 @@ PvScsiDriverBindingSupported ( IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
)
{
- return EFI_UNSUPPORTED;
+ EFI_STATUS Status;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ PCI_TYPE00 Pci;
+
+ Status = gBS->OpenProtocol (
+ ControllerHandle,
+ &gEfiPciIoProtocolGuid,
+ (VOID **)&PciIo,
+ This->DriverBindingHandle,
+ ControllerHandle,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = PciIo->Pci.Read (
+ PciIo,
+ EfiPciIoWidthUint32,
+ 0,
+ sizeof (Pci) / sizeof (UINT32),
+ &Pci
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ if ((Pci.Hdr.VendorId != PCI_VENDOR_ID_VMWARE) ||
+ (Pci.Hdr.DeviceId != PCI_DEVICE_ID_VMWARE_PVSCSI)) {
+ Status = EFI_UNSUPPORTED;
+ goto Done;
+ }
+
+ Status = EFI_SUCCESS;
+
+Done:
+ gBS->CloseProtocol (
+ ControllerHandle,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ ControllerHandle
+ );
+
+ return Status;
}
STATIC
diff --git a/OvmfPkg/PvScsiDxe/PvScsiDxe.inf b/OvmfPkg/PvScsiDxe/PvScsiDxe.inf index d1d0e963f9..c1f0663832 100644 --- a/OvmfPkg/PvScsiDxe/PvScsiDxe.inf +++ b/OvmfPkg/PvScsiDxe/PvScsiDxe.inf @@ -22,7 +22,12 @@ [Packages]
MdePkg/MdePkg.dec
+ OvmfPkg/OvmfPkg.dec
[LibraryClasses]
+ UefiBootServicesTableLib
UefiDriverEntryPoint
UefiLib
+
+[Protocols]
+ gEfiPciIoProtocolGuid ## TO_START
|