#include "XenBusDxe.h"\r
\r
#include "XenHypercall.h"\r
+#include "GrantTable.h"\r
\r
\r
///\r
EFI_STATUS Status;\r
XENBUS_DEVICE *Dev;\r
EFI_PCI_IO_PROTOCOL *PciIo;\r
+ EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *BarDesc;\r
+ UINT64 MmioAddr;\r
\r
Status = gBS->OpenProtocol (\r
ControllerHandle,\r
mMyDevice = Dev;\r
EfiReleaseLock (&mMyDeviceLock);\r
\r
+ //\r
+ // The BAR1 of this PCI device is used for shared memory and is supposed to\r
+ // look like MMIO. The address space of the BAR1 will be used to map the\r
+ // Grant Table.\r
+ //\r
+ Status = PciIo->GetBarAttributes (PciIo, PCI_BAR_IDX1, NULL, (VOID**) &BarDesc);\r
+ ASSERT_EFI_ERROR (Status);\r
+ ASSERT (BarDesc->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM);\r
+\r
+ /* Get a Memory address for mapping the Grant Table. */\r
+ DEBUG ((EFI_D_INFO, "XenBus: BAR at %LX\n", BarDesc->AddrRangeMin));\r
+ MmioAddr = BarDesc->AddrRangeMin;\r
+ FreePool (BarDesc);\r
+\r
Status = XenHyperpageInit (Dev);\r
if (EFI_ERROR (Status)) {\r
DEBUG ((EFI_D_ERROR, "XenBus: Unable to retrieve the hyperpage.\n"));\r
goto ErrorAllocated;\r
}\r
\r
+ XenGrantTableInit (Dev, MmioAddr);\r
+\r
Status = gBS->CreateEvent (EVT_SIGNAL_EXIT_BOOT_SERVICES, TPL_CALLBACK,\r
NotifyExitBoot,\r
(VOID*) Dev,\r
XENBUS_DEVICE *Dev = mMyDevice;\r
\r
gBS->CloseEvent (Dev->ExitBootEvent);\r
+ XenGrantTableDeinit (Dev);\r
\r
gBS->CloseProtocol (ControllerHandle, &gEfiPciIoProtocolGuid,\r
This->DriverBindingHandle, ControllerHandle);\r