The VRING buffer is a communication area between guest and hypervisor. Allocate it using VIRTIO_DEVICE_PROTOCOL.AllocateSharedPages() so that it can be mapped later with VirtioRingMap() for bi-directional access. Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Laszlo Ersek <lersek@redhat.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> [lersek@redhat.com: correct typo in VirtioRingInit() comment blocks] Reviewed-by: Laszlo Ersek <lersek@redhat.com> Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
		
			
				
	
	
		
			36 lines
		
	
	
		
			1011 B
		
	
	
	
		
			INI
		
	
	
	
	
	
			
		
		
	
	
			36 lines
		
	
	
		
			1011 B
		
	
	
	
		
			INI
		
	
	
	
	
	
| ## @file
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| # Library of virtio utility functions.
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| #
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| # Copyright (C) 2012, Red Hat, Inc.
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| #
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| # This program and the accompanying materials are licensed and made available
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| # under the terms and conditions of the BSD License which accompanies this
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| # distribution. The full text of the license may be found at
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| # http://opensource.org/licenses/bsd-license.php
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| #
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| # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
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| # WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| #
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| ##
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| 
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| [Defines]
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|   INF_VERSION                    = 0x00010005
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|   BASE_NAME                      = VirtioLib
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|   FILE_GUID                      = 90CED1D9-18F2-47CC-BF24-41EC29406637
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|   MODULE_TYPE                    = UEFI_DRIVER
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|   VERSION_STRING                 = 1.0
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|   LIBRARY_CLASS                  = VirtioLib
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| 
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| [Sources]
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|   VirtioLib.c
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| 
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| [Packages]
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|   MdePkg/MdePkg.dec
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|   OvmfPkg/OvmfPkg.dec
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| 
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| [LibraryClasses]
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|   BaseLib
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|   BaseMemoryLib
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|   DebugLib
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|   UefiBootServicesTableLib
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