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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[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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[Sources]
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VirtioLib.c
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[Packages]
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MdePkg/MdePkg.dec
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OvmfPkg/OvmfPkg.dec
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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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