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OvmfPkg/Virtio.h: Added the macros that define the Device Specific Configuration Offset 

The Device Specific Configuration region is located at different locations
for the VirtIo devices over PCI, PCI with MSI-X capability, MMIO.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14807 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Olivier Martin 2013-10-29 06:07:35 +00:00 committed by oliviermartin
parent 9edb2933ab
commit b342c97dfc
1 changed files with 7 additions and 0 deletions
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7
OvmfPkg/Include/IndustryStandard/Virtio.h
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@ -34,6 +34,13 @@
#define VIRTIO_SUBSYSTEM_9P_TRANSPORT 9
#define VIRTIO_SUBSYSTEM_MAC80211_WLAN 10
//
// VirtIo Device Specific Configuration Offsets
//
#define VIRTIO_DEVICE_SPECIFIC_CONFIGURATION_OFFSET_PCI 20
#define VIRTIO_DEVICE_SPECIFIC_CONFIGURATION_OFFSET_PCI_WITH_MSI_X 24
#define VIRTIO_DEVICE_SPECIFIC_CONFIGURATION_OFFSET_MMIO 0x100
//
// Data in the communication area is defined as packed and accessed as
// volatile.