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43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
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/** @file
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XenIo protocol to abstract arch specific details
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The Xen implementations for the Intel and ARM architectures differ in the way
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the base address of the grant table is communicated to the guest. The former
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uses a virtual PCI device, while the latter uses a device tree node.
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In order to allow the XenBusDxe UEFI driver to be reused for the non-PCI
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Xen implementation, this abstract protocol can be installed on a handle
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with the appropriate base address.
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Copyright (C) 2014, Linaro Ltd.
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __PROTOCOL_XENIO_H__
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#define __PROTOCOL_XENIO_H__
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#include <IndustryStandard/Xen/xen.h>
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#define XENIO_PROTOCOL_GUID \
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{0x6efac84f, 0x0ab0, 0x4747, {0x81, 0xbe, 0x85, 0x55, 0x62, 0x59, 0x04, 0x49}}
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///
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/// Forward declaration
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///
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typedef struct _XENIO_PROTOCOL XENIO_PROTOCOL;
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///
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/// Protocol structure
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///
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struct _XENIO_PROTOCOL {
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//
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// Protocol data fields
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//
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EFI_PHYSICAL_ADDRESS GrantTableAddress;
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};
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extern EFI_GUID gXenIoProtocolGuid;
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#endif
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