diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2015-02-28 20:34:26 +0000 |
|---|---|---|
| committer | lersek <lersek@Edk2> | 2015-02-28 20:34:26 +0000 |
| commit | 6abe83c3c884f86bd423d6155eb1b7f6d2833fd9 (patch) | |
| tree | 2341b255b349b0689be80b43123fb1265c26c72c | |
| parent | 0169352eaa357281fba57d176cceba3baf67400c (diff) | |
ArmVirtualizationPkg/VirtFdtDxe: wire up XenBusDxe to "xen,xen" DT node
This patchs adds support to VirtFdtDxe for the Xen DT node which
contains the base address of the Grant Table. This data is communicated
to XenBusDxe using a XENIO_PROTOCOL instance.
Contributed-under: TianoCore Contribution Agreement 1.0
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Olivier Martin <olivier.martin@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16980 6f19259b-4bc3-4df7-8a09-765794883524
3 files changed, 26 insertions, 0 deletions
diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualization.dsc.inc b/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualization.dsc.inc index 1a82762cb..565f24309 100644 --- a/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualization.dsc.inc +++ b/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualization.dsc.inc @@ -107,6 +107,8 @@ # USB Libraries
UefiUsbLib|MdePkg/Library/UefiUsbLib/UefiUsbLib.inf
+ XenIoMmioLib|OvmfPkg/Library/XenIoMmioLib/XenIoMmioLib.inf
+
[LibraryClasses.common.SEC]
PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
ArmPlatformSecExtraActionLib|ArmPlatformPkg/Library/DebugSecExtraActionLib/DebugSecExtraActionLib.inf
diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.c b/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.c index e63294a12..c9a181a87 100644 --- a/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.c +++ b/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.c @@ -26,6 +26,7 @@ #include <Library/DxeServicesLib.h>
#include <Library/HobLib.h>
#include <libfdt.h>
+#include <Library/XenIoMmioLib.h>
#include <Guid/Fdt.h>
#include <Guid/VirtioMmioTransport.h>
@@ -50,6 +51,7 @@ typedef enum { PropertyTypeFwCfg,
PropertyTypePciHost,
PropertyTypeGicV3,
+ PropertyTypeXen,
} PROPERTY_TYPE;
typedef struct {
@@ -68,6 +70,7 @@ STATIC CONST PROPERTY CompatibleProperties[] = { { PropertyTypeFwCfg, "qemu,fw-cfg-mmio" },
{ PropertyTypePciHost, "pci-host-ecam-generic" },
{ PropertyTypeGicV3, "arm,gic-v3" },
+ { PropertyTypeXen, "xen,xen" },
{ PropertyTypeUnknown, "" }
};
@@ -523,6 +526,26 @@ InitializeVirtFdtDxe ( }
break;
+ case PropertyTypeXen:
+ ASSERT (Len == 16);
+
+ //
+ // Retrieve the reg base from this node and wire it up to the
+ // MMIO flavor of the XenBus root device I/O protocol
+ //
+ RegBase = fdt64_to_cpu (((UINT64 *)RegProp)[0]);
+ Handle = NULL;
+ Status = XenIoMmioInstall (&Handle, RegBase);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "%a: XenIoMmioInstall () failed on a new handle "
+ "(Status == %r)\n", __FUNCTION__, Status));
+ break;
+ }
+
+ DEBUG ((EFI_D_INFO, "Found Xen node with Grant table @ 0x%Lx\n", RegBase));
+
+ break;
+
default:
break;
}
diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf b/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf index bca0f0b5f..d830dd131 100644 --- a/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf +++ b/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf @@ -42,6 +42,7 @@ FdtLib
VirtioMmioDeviceLib
HobLib
+ XenIoMmioLib
[Guids]
gFdtTableGuid
|