sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

OvmfPkg: Make the VirtIo devices use the new VIRTIO_DEVICE_PROTOCOL

Browse Source 
This change replaces the accesses to the PCI bus from the Block, Scsi and Net drivers by
the use of the new VIRTIO_DEVICE_PROTOCOL protocol that abstracts the transport layer.
It means these drivers can be used on PCI and MMIO transport layer.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>

v5:
- VirtioFlush(): update comment block in VirtioLib.[hc]; error code is
  propagated from VirtIo->SetQueueNotify().
- VirtioBlkInit(): jump to Failed label if SetPageSize() fails
- VirtioBlkInit(): fixup comment, and add error handling, near
  SetQueueNum() call
- VirtioBlkDriverBindingStart(): remove redundant (always false) check for
  a subsystem device ID different from VIRTIO_SUBSYSTEM_BLOCK_DEVICE;
  VirtioBlkDriverBindingSupported() handles it already
- VirtioNetGetFeatures(): update stale comment block
- VirtioNetGetFeatures(): retrieve MAC address byte for byte (open-coded
  loop)
- VirtioNetDriverBindingStart(): remove redundant (always false) check for
  a subsystem device ID different from VIRTIO_SUBSYSTEM_NETWORK_CARD;
  VirtioNetDriverBindingSupported() handles it already
- VirtioNetInitRing(): call SetQueueNum() and SetQueueAlign() for proper
  MMIO operation
- VirtioNetInitialize(): fix destination error label for when
  SetPageSize() fails
- VirtioScsi.c: fix comment block of VIRTIO_CFG_WRITE()/VIRTIO_CFG_READ()
- VirtioScsiInit(): fix destination error label for when SetPageSize()
  fails
- VirtioScsiInit(): call SetQueueNum() and SetQueueAlign() for proper MMIO
  operation

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14966 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Olivier Martin
2013-12-11 16:58:22 +00:00
committed by jljusten
parent 6fb4e772a0
commit 56f65ed838
27 changed files with 388 additions and 532 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
OvmfPkg/Include/IndustryStandard/VirtioBlk.h
View File

@@ -26,19 +26,18 @@
//
#pragma pack(1)
typedef struct {
VIRTIO_HDR Generic;
UINT64 VhdrCapacity;
UINT32 VhdrSizeMax;
UINT32 VhdrSegMax;
UINT16 VhdrCylinders;
UINT8 VhdrHeads;
UINT8 VhdrSectors;
UINT32 VhdrBlkSize;
} VBLK_HDR;
UINT64 Capacity;
UINT32 SizeMax;
UINT32 SegMax;
UINT16 Cylinders;
UINT8 Heads;
UINT8 Sectors;
UINT32 BlkSize;
} VIRTIO_BLK_CONFIG;
#pragma pack()
#define OFFSET_OF_VBLK(Field) OFFSET_OF (VBLK_HDR, Field)
#define SIZE_OF_VBLK(Field) (sizeof ((VBLK_HDR *) 0)->Field)
#define OFFSET_OF_VBLK(Field) OFFSET_OF (VIRTIO_BLK_CONFIG, Field)
#define SIZE_OF_VBLK(Field) (sizeof ((VIRTIO_BLK_CONFIG *) 0)->Field)
#define VIRTIO_BLK_F_BARRIER BIT0
#define VIRTIO_BLK_F_SIZE_MAX BIT1