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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v4 21/29] Ovmf/Xen: move XenBusDxe to abstract XENIO_PROTOCOL
While Xen on Intel uses a virtual PCI device to communicate the
base address of the grant table, the ARM implementation uses a DT
node, which is fundamentally incompatible with the way XenBusDxe is
implemented, i.e., as a UEFI Driver Model implementation for a PCI
device.
Contributed-under: TianoCore Contribution Agreement 1.0
Acked-by: Laszlo Ersek <lersek@xxxxxxxxxx>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
---
OvmfPkg/OvmfPkgIa32.dsc | 1 +
OvmfPkg/OvmfPkgIa32.fdf | 1 +
OvmfPkg/OvmfPkgIa32X64.dsc | 1 +
OvmfPkg/OvmfPkgIa32X64.fdf | 1 +
OvmfPkg/OvmfPkgX64.dsc | 1 +
OvmfPkg/OvmfPkgX64.fdf | 1 +
OvmfPkg/XenBusDxe/ComponentName.c | 2 +-
OvmfPkg/XenBusDxe/GrantTable.c | 5 ++---
OvmfPkg/XenBusDxe/GrantTable.h | 3 +--
OvmfPkg/XenBusDxe/XenBus.c | 6 +++---
OvmfPkg/XenBusDxe/XenBusDxe.c | 55
+++++++++++++------------------------------------------
OvmfPkg/XenBusDxe/XenBusDxe.h | 8 ++------
OvmfPkg/XenBusDxe/XenBusDxe.inf | 2 +-
13 files changed, 29 insertions(+), 58 deletions(-)
diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc
index 90540272745c..8c880613851d 100644
--- a/OvmfPkg/OvmfPkgIa32.dsc
+++ b/OvmfPkg/OvmfPkgIa32.dsc
@@ -444,6 +444,7 @@
OvmfPkg/VirtioBlkDxe/VirtioBlk.inf
OvmfPkg/VirtioScsiDxe/VirtioScsi.inf
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf
+ OvmfPkg/XenIoPciDxe/XenIoPciDxe.inf
OvmfPkg/XenBusDxe/XenBusDxe.inf
OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf {
diff --git a/OvmfPkg/OvmfPkgIa32.fdf b/OvmfPkg/OvmfPkgIa32.fdf
index f47e7ddc7834..ecef963d1e85 100644
--- a/OvmfPkg/OvmfPkgIa32.fdf
+++ b/OvmfPkg/OvmfPkgIa32.fdf
@@ -227,6 +227,7 @@ INF OvmfPkg/VirtioScsiDxe/VirtioScsi.inf
INF OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf
INF OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf
INF MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf
+INF OvmfPkg/XenIoPciDxe/XenIoPciDxe.inf
INF OvmfPkg/XenBusDxe/XenBusDxe.inf
INF OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
diff --git a/OvmfPkg/OvmfPkgIa32X64.dsc b/OvmfPkg/OvmfPkgIa32X64.dsc
index 0a331eda8be0..ff32ecefd07b 100644
--- a/OvmfPkg/OvmfPkgIa32X64.dsc
+++ b/OvmfPkg/OvmfPkgIa32X64.dsc
@@ -451,6 +451,7 @@
OvmfPkg/VirtioBlkDxe/VirtioBlk.inf
OvmfPkg/VirtioScsiDxe/VirtioScsi.inf
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf
+ OvmfPkg/XenIoPciDxe/XenIoPciDxe.inf
OvmfPkg/XenBusDxe/XenBusDxe.inf
OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf {
diff --git a/OvmfPkg/OvmfPkgIa32X64.fdf b/OvmfPkg/OvmfPkgIa32X64.fdf
index 4c034460d5d2..29414ff04082 100644
--- a/OvmfPkg/OvmfPkgIa32X64.fdf
+++ b/OvmfPkg/OvmfPkgIa32X64.fdf
@@ -227,6 +227,7 @@ INF OvmfPkg/VirtioScsiDxe/VirtioScsi.inf
INF OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf
INF OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf
INF MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf
+INF OvmfPkg/XenIoPciDxe/XenIoPciDxe.inf
INF OvmfPkg/XenBusDxe/XenBusDxe.inf
INF OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc
index e2b37c271681..8bac6dc313f0 100644
--- a/OvmfPkg/OvmfPkgX64.dsc
+++ b/OvmfPkg/OvmfPkgX64.dsc
@@ -449,6 +449,7 @@
OvmfPkg/VirtioBlkDxe/VirtioBlk.inf
OvmfPkg/VirtioScsiDxe/VirtioScsi.inf
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf
+ OvmfPkg/XenIoPciDxe/XenIoPciDxe.inf
OvmfPkg/XenBusDxe/XenBusDxe.inf
OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf {
diff --git a/OvmfPkg/OvmfPkgX64.fdf b/OvmfPkg/OvmfPkgX64.fdf
index 2323eb2edf33..f1feb698ba66 100644
--- a/OvmfPkg/OvmfPkgX64.fdf
+++ b/OvmfPkg/OvmfPkgX64.fdf
@@ -227,6 +227,7 @@ INF OvmfPkg/VirtioScsiDxe/VirtioScsi.inf
INF OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf
INF OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf
INF MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf
+INF OvmfPkg/XenIoPciDxe/XenIoPciDxe.inf
INF OvmfPkg/XenBusDxe/XenBusDxe.inf
INF OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
diff --git a/OvmfPkg/XenBusDxe/ComponentName.c
b/OvmfPkg/XenBusDxe/ComponentName.c
index 4530509e65dc..3f2dd406c77d 100644
--- a/OvmfPkg/XenBusDxe/ComponentName.c
+++ b/OvmfPkg/XenBusDxe/ComponentName.c
@@ -155,7 +155,7 @@ XenBusDxeComponentNameGetControllerName (
Status = EfiTestManagedDevice (
ControllerHandle,
gXenBusDxeDriverBinding.DriverBindingHandle,
- &gEfiPciIoProtocolGuid
+ &gXenIoProtocolGuid
);
if (EFI_ERROR (Status)) {
return Status;
diff --git a/OvmfPkg/XenBusDxe/GrantTable.c b/OvmfPkg/XenBusDxe/GrantTable.c
index a80d5eff39cd..19117fbe0373 100644
--- a/OvmfPkg/XenBusDxe/GrantTable.c
+++ b/OvmfPkg/XenBusDxe/GrantTable.c
@@ -139,8 +139,7 @@ XenGrantTableEndAccess (
VOID
XenGrantTableInit (
- IN XENBUS_DEVICE *Dev,
- IN UINT64 MmioAddr
+ IN XENBUS_DEVICE *Dev
)
{
xen_add_to_physmap_t Parameters;
@@ -155,7 +154,7 @@ XenGrantTableInit (
XenGrantTablePutFreeEntry ((grant_ref_t)Index);
}
- GrantTable = (VOID*)(UINTN) MmioAddr;
+ GrantTable = (VOID*)(UINTN) Dev->XenIo->GrantTableAddress;
for (Index = 0; Index < NR_GRANT_FRAMES; Index++) {
Parameters.domid = DOMID_SELF;
Parameters.idx = Index;
diff --git a/OvmfPkg/XenBusDxe/GrantTable.h b/OvmfPkg/XenBusDxe/GrantTable.h
index 5772c56662df..194275ba7ed5 100644
--- a/OvmfPkg/XenBusDxe/GrantTable.h
+++ b/OvmfPkg/XenBusDxe/GrantTable.h
@@ -29,8 +29,7 @@
**/
VOID
XenGrantTableInit (
- IN XENBUS_DEVICE *Dev,
- IN UINT64 MmioAddr
+ IN XENBUS_DEVICE *Dev
);
/**
diff --git a/OvmfPkg/XenBusDxe/XenBus.c b/OvmfPkg/XenBusDxe/XenBus.c
index f69c27dd184a..ee9526c33252 100644
--- a/OvmfPkg/XenBusDxe/XenBus.c
+++ b/OvmfPkg/XenBusDxe/XenBus.c
@@ -138,7 +138,7 @@ XenBusAddDevice (
XENBUS_PRIVATE_DATA *Private;
EFI_STATUS Status;
XENBUS_DEVICE_PATH *TempXenBusPath;
- VOID *ChildPciIo;
+ VOID *ChildXenIo;
AsciiSPrint (DevicePath, sizeof (DevicePath),
"device/%a/%a", Type, Id);
@@ -208,8 +208,8 @@ XenBusAddDevice (
}
Status = gBS->OpenProtocol (Dev->ControllerHandle,
- &gEfiPciIoProtocolGuid,
- &ChildPciIo, Dev->This->DriverBindingHandle,
+ &gXenIoProtocolGuid,
+ &ChildXenIo, Dev->This->DriverBindingHandle,
Private->Handle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER);
if (EFI_ERROR (Status)) {
diff --git a/OvmfPkg/XenBusDxe/XenBusDxe.c b/OvmfPkg/XenBusDxe/XenBusDxe.c
index cc334c086c1f..2c4a08673ce6 100644
--- a/OvmfPkg/XenBusDxe/XenBusDxe.c
+++ b/OvmfPkg/XenBusDxe/XenBusDxe.c
@@ -23,8 +23,6 @@
**/
-#include <IndustryStandard/Pci.h>
-#include <IndustryStandard/Acpi.h>
#include <Library/DebugLib.h>
#include <Library/XenHypercallLib.h>
@@ -233,34 +231,22 @@ XenBusDxeDriverBindingSupported (
)
{
EFI_STATUS Status;
- EFI_PCI_IO_PROTOCOL *PciIo;
- PCI_TYPE00 Pci;
+ XENIO_PROTOCOL *XenIo;
Status = gBS->OpenProtocol (
ControllerHandle,
- &gEfiPciIoProtocolGuid,
- (VOID **)&PciIo,
+ &gXenIoProtocolGuid,
+ (VOID **)&XenIo,
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 (Status == EFI_SUCCESS) {
- if (Pci.Hdr.VendorId == PCI_VENDOR_ID_XEN &&
- Pci.Hdr.DeviceId == PCI_DEVICE_ID_XEN_PLATFORM) {
- Status = EFI_SUCCESS;
- } else {
- Status = EFI_UNSUPPORTED;
- }
- }
-
- gBS->CloseProtocol (ControllerHandle, &gEfiPciIoProtocolGuid,
+ gBS->CloseProtocol (ControllerHandle, &gXenIoProtocolGuid,
This->DriverBindingHandle, ControllerHandle);
return Status;
@@ -326,19 +312,18 @@ XenBusDxeDriverBindingStart (
{
EFI_STATUS Status;
XENBUS_DEVICE *Dev;
- EFI_PCI_IO_PROTOCOL *PciIo;
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *BarDesc;
- UINT64 MmioAddr;
+ XENIO_PROTOCOL *XenIo;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
Status = gBS->OpenProtocol (
ControllerHandle,
- &gEfiPciIoProtocolGuid,
- (VOID **) &PciIo,
+ &gXenIoProtocolGuid,
+ (VOID**)&XenIo,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
+
if (EFI_ERROR (Status)) {
return Status;
}
@@ -360,7 +345,7 @@ XenBusDxeDriverBindingStart (
Dev->Signature = XENBUS_DEVICE_SIGNATURE;
Dev->This = This;
Dev->ControllerHandle = ControllerHandle;
- Dev->PciIo = PciIo;
+ Dev->XenIo = XenIo;
Dev->DevicePath = DevicePath;
InitializeListHead (&Dev->ChildList);
@@ -376,20 +361,6 @@ XenBusDxeDriverBindingStart (
mMyDevice = Dev;
EfiReleaseLock (&mMyDeviceLock);
- //
- // The BAR1 of this PCI device is used for shared memory and is supposed to
- // look like MMIO. The address space of the BAR1 will be used to map the
- // Grant Table.
- //
- Status = PciIo->GetBarAttributes (PciIo, PCI_BAR_IDX1, NULL, (VOID**)
&BarDesc);
- ASSERT_EFI_ERROR (Status);
- ASSERT (BarDesc->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM);
-
- /* Get a Memory address for mapping the Grant Table. */
- DEBUG ((EFI_D_INFO, "XenBus: BAR at %LX\n", BarDesc->AddrRangeMin));
- MmioAddr = BarDesc->AddrRangeMin;
- FreePool (BarDesc);
-
Status = XenGetSharedInfoPage (Dev);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "XenBus: Unable to get the shared info page.\n"));
@@ -397,7 +368,7 @@ XenBusDxeDriverBindingStart (
goto ErrorAllocated;
}
- XenGrantTableInit (Dev, MmioAddr);
+ XenGrantTableInit (Dev);
Status = XenStoreInit (Dev);
ASSERT_EFI_ERROR (Status);
@@ -417,7 +388,7 @@ ErrorAllocated:
gBS->CloseProtocol (ControllerHandle, &gEfiDevicePathProtocolGuid,
This->DriverBindingHandle, ControllerHandle);
ErrorOpenningProtocol:
- gBS->CloseProtocol (ControllerHandle, &gEfiPciIoProtocolGuid,
+ gBS->CloseProtocol (ControllerHandle, &gXenIoProtocolGuid,
This->DriverBindingHandle, ControllerHandle);
return Status;
}
@@ -507,7 +478,7 @@ XenBusDxeDriverBindingStop (
gBS->CloseProtocol (ControllerHandle, &gEfiDevicePathProtocolGuid,
This->DriverBindingHandle, ControllerHandle);
- gBS->CloseProtocol (ControllerHandle, &gEfiPciIoProtocolGuid,
+ gBS->CloseProtocol (ControllerHandle, &gXenIoProtocolGuid,
This->DriverBindingHandle, ControllerHandle);
mMyDevice = NULL;
diff --git a/OvmfPkg/XenBusDxe/XenBusDxe.h b/OvmfPkg/XenBusDxe/XenBusDxe.h
index 9b7219906a69..6c306e017b07 100644
--- a/OvmfPkg/XenBusDxe/XenBusDxe.h
+++ b/OvmfPkg/XenBusDxe/XenBusDxe.h
@@ -39,7 +39,7 @@
//
// Consumed Protocols
//
-#include <Protocol/PciIo.h>
+#include <Protocol/XenIo.h>
//
@@ -73,10 +73,6 @@ extern EFI_COMPONENT_NAME_PROTOCOL gXenBusDxeComponentName;
//
#include <IndustryStandard/Xen/xen.h>
-#define PCI_VENDOR_ID_XEN 0x5853
-#define PCI_DEVICE_ID_XEN_PLATFORM 0x0001
-
-
typedef struct _XENBUS_DEVICE_PATH XENBUS_DEVICE_PATH;
typedef struct _XENBUS_DEVICE XENBUS_DEVICE;
@@ -86,7 +82,7 @@ struct _XENBUS_DEVICE {
UINT32 Signature;
EFI_DRIVER_BINDING_PROTOCOL *This;
EFI_HANDLE ControllerHandle;
- EFI_PCI_IO_PROTOCOL *PciIo;
+ XENIO_PROTOCOL *XenIo;
EFI_EVENT ExitBootEvent;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
LIST_ENTRY ChildList;
diff --git a/OvmfPkg/XenBusDxe/XenBusDxe.inf b/OvmfPkg/XenBusDxe/XenBusDxe.inf
index 714607dbd6f8..31553ac5a64a 100644
--- a/OvmfPkg/XenBusDxe/XenBusDxe.inf
+++ b/OvmfPkg/XenBusDxe/XenBusDxe.inf
@@ -67,8 +67,8 @@
[Protocols]
gEfiDriverBindingProtocolGuid
- gEfiPciIoProtocolGuid
gEfiComponentName2ProtocolGuid
gEfiComponentNameProtocolGuid
gXenBusProtocolGuid
+ gXenIoProtocolGuid
--
1.8.3.2
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