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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH RFC 18/18] OvmfPkg/XenPvBlkDxe: Add BlockIo.
On Wed, Jul 16, 2014 at 03:57:23PM -0400, Konrad Rzeszutek Wilk wrote:
> On Wed, Jul 16, 2014 at 04:15:47PM +0100, Anthony PERARD wrote:
> > Install the BlockIo protocol.
> >
> > Contributed-under: TianoCore Contribution Agreement 1.0
> > Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
> > ---
> > OvmfPkg/XenPvBlkDxe/BlockIo.c | 256
> > ++++++++++++++++++++++++++++++++++++
> > OvmfPkg/XenPvBlkDxe/BlockIo.h | 109 +++++++++++++++
> > OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.c | 59 +++++++++
> > OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.h | 1 +
> > OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf | 2 +
> > 5 files changed, 427 insertions(+)
> > create mode 100644 OvmfPkg/XenPvBlkDxe/BlockIo.c
> > create mode 100644 OvmfPkg/XenPvBlkDxe/BlockIo.h
> >
> > diff --git a/OvmfPkg/XenPvBlkDxe/BlockIo.c b/OvmfPkg/XenPvBlkDxe/BlockIo.c
> > new file mode 100644
> > index 0000000..4ac2411
> > --- /dev/null
> > +++ b/OvmfPkg/XenPvBlkDxe/BlockIo.c
> > @@ -0,0 +1,256 @@
> > +
> > +/** @file
> > + TODO: Brief Description of UEFI Driver XenPvBlkDxe
> > +
> > + TODO: Detailed Description of UEFI Driver XenPvBlkDxe
> > +
> > + TODO: Copyright for UEFI Driver XenPvBlkDxe
> > +
> > + TODO: License for UEFI Driver XenPvBlkDxe
> > +
> > +**/
> > +
> > +#include "XenPvBlkDxe.h"
> > +
> > +#include "BlockFront.h"
> > +
> > +///
> > +/// Block I/O Media structure
> > +///
> > +GLOBAL_REMOVE_IF_UNREFERENCED
> > +EFI_BLOCK_IO_MEDIA gXenPvBlkDxeBlockIoMedia = {
> > + 0, // MediaId
> > + FALSE, // RemovableMedia
> > + FALSE, // MediaPresent
> > + FALSE, // LogicalPartition
> > + TRUE, // ReadOnly
> > + FALSE, // WriteCaching
> > + 512, // BlockSize
> > + 512, // IoAlign
> > + 0, // LastBlock
> > + 0, // LowestAlignedLba
> > + 0, // LogicalBlocksPerPhysicalBlock
> > + 0 // OptimalTransferLengthGranularity
> > +};
> > +
> > +///
> > +/// Block I/O Protocol instance
> > +///
> > +GLOBAL_REMOVE_IF_UNREFERENCED
> > +EFI_BLOCK_IO_PROTOCOL gXenPvBlkDxeBlockIo = {
> > + EFI_BLOCK_IO_PROTOCOL_REVISION3, // Revision
> > + &gXenPvBlkDxeBlockIoMedia, // Media
> > + (EFI_BLOCK_RESET)XenPvBlkDxeBlockIoReset, // Reset
> > + XenPvBlkDxeBlockIoReadBlocks, // ReadBlocks
> > + XenPvBlkDxeBlockIoWriteBlocks, // WriteBlocks
> > + XenPvBlkDxeBlockIoFlushBlocks // FlushBlocks
> > +};
> > +
> > +
> > +
> > +
> > +STATIC
> > +EFI_STATUS
> > +XenPvBlkDxeBlockIoReadWriteBlocks (
> > + IN EFI_BLOCK_IO_PROTOCOL *This,
> > + IN UINT32 MediaId,
> > + IN EFI_LBA Lba,
> > + IN UINTN BufferSize,
> > + IN OUT VOID *Buffer,
> > + IN BOOLEAN IsWrite
> > + )
> > +{
> > + XEN_BLOCK_FRONT_IO IoData;
> > + EFI_BLOCK_IO_MEDIA *Media;
> > + UINTN NextOffset;
> > +
> > + if (Buffer == NULL) {
> > + DEBUG ((EFI_D_ERROR, "%a %d, buffer null\n", __func__, __LINE__));
>
> Heheh.
>
> > + return EFI_INVALID_PARAMETER;
> > + }
> > + if (BufferSize == 0) {
> > + return EFI_SUCCESS;
> > + }
> > +
> > + Media = This->Media;
> > +
> > + if (BufferSize % Media->BlockSize != 0) {
> > + DEBUG ((EFI_D_ERROR, "%a %d, bad buffer size\n", __func__, __LINE__));
> > + return EFI_BAD_BUFFER_SIZE;
> > + }
> > +
> > + if (Lba > Media->LastBlock ||
> > + (BufferSize / Media->BlockSize) - 1 > Media->LastBlock - Lba) {
> > + DEBUG ((EFI_D_ERROR, "%a %d, read too large\n", __func__, __LINE__));
> > + return EFI_INVALID_PARAMETER;
> > + }
> > +
> > + if (IsWrite && Media->ReadOnly) {
> > + DEBUG ((EFI_D_ERROR, "%a %d, read only\n", __func__, __LINE__));
> > + return EFI_WRITE_PROTECTED;
> > + }
> > +
> > + if ((Media->IoAlign > 1) && (UINTN)Buffer & (Media->IoAlign - 1)) {
> > + // This happen often when using grub2
> > + VOID *NewBuffer;
> > + EFI_STATUS Status;
> > +
> > + /* Try again with a properly aligned buffer. */
> > + NewBuffer = AllocateAlignedPages((BufferSize + EFI_PAGE_SIZE) /
> > EFI_PAGE_SIZE,
> > + Media->IoAlign);
> > + if (!IsWrite) {
> > + Status = XenPvBlkDxeBlockIoReadBlocks (This, MediaId,
> > + Lba, BufferSize, NewBuffer);
> > + CopyMem (Buffer, NewBuffer, BufferSize);
> > + } else {
> > + CopyMem (NewBuffer, Buffer, BufferSize);
> > + Status = XenPvBlkDxeBlockIoWriteBlocks (This, MediaId,
> > + Lba, BufferSize, NewBuffer);
> > + }
> > + FreeAlignedPages (NewBuffer, (BufferSize + EFI_PAGE_SIZE) /
> > EFI_PAGE_SIZE);
> > + return Status;
> > + }
> > +
> > +
> > + // XXX Check MediaId
> > +
> > + IoData.Dev = XEN_BLOCK_FRONT_FROM_BLOCK_IO (This);
> > + IoData.Offset = Lba * Media->BlockSize;
> > + IoData.Callback = NULL;
> > + IoData.Data = NULL;
> > + IoData.Size = BufferSize;
> > + IoData.Buffer = Buffer;
> > +
> > + NextOffset = Lba * Media->BlockSize;
>
> Or just = IoData.Offset ?
Yes.
> > + while (BufferSize > 0) {
> > + // This should work if every Buffer is page aligned
> > + // but block accept sector aligned, so FIXME
>
> Isn't the work-around for GRUB2 above doing this?
No, GRUB2 is worth, it's not even sector aligned... I think my comment
is about why a Size of EFI_PAGE_SIZE * BLKIF_MAX_SEGMENTS_PER_REQUEST
did not work and that I should find a better value than page_size * 8.
> > + IoData.Size = MIN(EFI_PAGE_SIZE * 8,//BLKIF_MAX_SEGMENTS_PER_REQUEST,
> > + BufferSize);
>
> Why 8 ?
I don't remember, but maybe the first value that works, or just a random
value that I've seen somewhere else ... anyway, that need to be change.
> > + IoData.Buffer = Buffer;
> > + IoData.Offset = NextOffset;
> > + BufferSize -= IoData.Size;
> > + Buffer = (VOID*) ((UINTN) Buffer + IoData.Size);
> > + NextOffset += IoData.Size;
> > + XenPvBlockIo (&IoData, IsWrite);
> > + if (!IoData.Data) {
>
> Well that wouldn't be possible as the XenPvBlockIo loops forever until that
> is done.
>
> However, you should probably have a comment here:
>
> /* XXX If we move to a different mechanism for CallBack this might
> go away */
That right.
> > + DEBUG ((EFI_D_ERROR, "%a %d, XenPvBlockIo no data...\n", __func__,
> > __LINE__));
> > + return EFI_DEVICE_ERROR;
> > + }
> > + }
> > + return EFI_SUCCESS;
> > +}
> > +
> > +
> > +/**
> > + Read BufferSize bytes from Lba into Buffer.
> > +
> > + @param This Indicates a pointer to the calling context.
> > + @param MediaId Id of the media, changes every time the media is
> > replaced.
> > + @param Lba The starting Logical Block Address to read from
> > + @param BufferSize Size of Buffer, must be a multiple of device block
> > size.
> > + @param Buffer A pointer to the destination buffer for the data. The
> > caller is
> > + responsible for either having implicit or explicit
> > ownership of the buffer.
> > +
> > + @retval EFI_SUCCESS The data was read correctly from the
> > device.
> > + @retval EFI_DEVICE_ERROR The device reported an error while
> > performing the read.
> > + @retval EFI_NO_MEDIA There is no media in the device.
> > + @retval EFI_MEDIA_CHANGED The MediaId does not matched the current
> > device.
> > + @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block
> > size of the device.
> > + @retval EFI_INVALID_PARAMETER The read request contains LBAs that are
> > not valid,
> > + or the buffer is not on proper alignment.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +XenPvBlkDxeBlockIoReadBlocks (
> > + IN EFI_BLOCK_IO_PROTOCOL *This,
> > + IN UINT32 MediaId,
> > + IN EFI_LBA Lba,
> > + IN UINTN BufferSize,
> > + OUT VOID *Buffer
> > + )
> > +{
> > + return XenPvBlkDxeBlockIoReadWriteBlocks (This,
> > + MediaId, Lba, BufferSize, Buffer, FALSE);
> > +}
> > +
> > +/**
> > + Write BufferSize bytes from Lba into Buffer.
> > +
> > + @param This Indicates a pointer to the calling context.
> > + @param MediaId The media ID that the write request is for.
> > + @param Lba The starting logical block address to be written. The
> > caller is
> > + responsible for writing to only legitimate locations.
> > + @param BufferSize Size of Buffer, must be a multiple of device block
> > size.
> > + @param Buffer A pointer to the source buffer for the data.
> > +
> > + @retval EFI_SUCCESS The data was written correctly to the
> > device.
> > + @retval EFI_WRITE_PROTECTED The device can not be written to.
> > + @retval EFI_DEVICE_ERROR The device reported an error while
> > performing the write.
> > + @retval EFI_NO_MEDIA There is no media in the device.
> > + @retval EFI_MEDIA_CHNAGED The MediaId does not matched the current
> > device.
> > + @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block
> > size of the device.
> > + @retval EFI_INVALID_PARAMETER The write request contains LBAs that are
> > not valid,
> > + or the buffer is not on proper alignment.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +XenPvBlkDxeBlockIoWriteBlocks (
> > + IN EFI_BLOCK_IO_PROTOCOL *This,
> > + IN UINT32 MediaId,
> > + IN EFI_LBA Lba,
> > + IN UINTN BufferSize,
> > + IN VOID *Buffer
> > + )
> > +{
> > + return XenPvBlkDxeBlockIoReadWriteBlocks (This,
> > + MediaId, Lba, BufferSize, Buffer, TRUE);
> > +}
> > +
> > +/**
> > + Flush the Block Device.
> > +
> > + @param This Indicates a pointer to the calling context.
> > +
> > + @retval EFI_SUCCESS All outstanding data was written to the device
> > + @retval EFI_DEVICE_ERROR The device reported an error while writting
> > back the data
> > + @retval EFI_NO_MEDIA There is no media in the device.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +XenPvBlkDxeBlockIoFlushBlocks (
> > + IN EFI_BLOCK_IO_PROTOCOL *This
> > + )
> > +{
> > + XenPvBlockSync (XEN_BLOCK_FRONT_FROM_BLOCK_IO (This));
> > + return EFI_SUCCESS;
> > +}
> > +
> > +/**
> > + Reset the block device hardware.
> > +
> > + @param[in] This Indicates a pointer to the calling
> > context.
> > + @param[in] ExtendedVerification Indicates that the driver may perform a
> > more
> > + exhausive verfication operation of the
> > device
> > + during reset.
> > +
> > + @retval EFI_SUCCESS The device was reset.
> > + @retval EFI_DEVICE_ERROR The device is not functioning properly and
> > could
> > + not be reset.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +XenPvBlkDxeBlockIoReset (
> > + IN EFI_BLOCK_IO2_PROTOCOL *This,
> > + IN BOOLEAN ExtendedVerification
> > + )
> > +{
> > + // Is there anything to do ?
> > + // since initialisation is done in Start (driver binding)
>
> Won't we leak memory? Or will it after an Reset do Stop, then Start?
>
No, I don't think so. Reset is probably to reset the hardware. That a
function that I need to take a closer look at.
> > + DEBUG ((EFI_D_INFO, "%a %d\n", __func__, __LINE__));
> > + return EFI_SUCCESS;
> > +}
> > diff --git a/OvmfPkg/XenPvBlkDxe/BlockIo.h b/OvmfPkg/XenPvBlkDxe/BlockIo.h
> > new file mode 100644
> > index 0000000..ec0fe2b
> > --- /dev/null
> > +++ b/OvmfPkg/XenPvBlkDxe/BlockIo.h
> > @@ -0,0 +1,109 @@
> > +
> > +/** @file
> > + TODO: Brief Description of UEFI Driver XenPvBlkDxe
> > +
> > + TODO: Detailed Description of UEFI Driver XenPvBlkDxe
> > +
> > + TODO: Copyright for UEFI Driver XenPvBlkDxe
> > +
> > + TODO: License for UEFI Driver XenPvBlkDxe
> > +
> > +**/
> > +
> > +/**
> > + Read BufferSize bytes from Lba into Buffer.
> > +
> > + @param This Indicates a pointer to the calling context.
> > + @param MediaId Id of the media, changes every time the media is
> > replaced.
> > + @param Lba The starting Logical Block Address to read from
> > + @param BufferSize Size of Buffer, must be a multiple of device block
> > size.
> > + @param Buffer A pointer to the destination buffer for the data. The
> > caller is
> > + responsible for either having implicit or explicit
> > ownership of the buffer.
> > +
> > + @retval EFI_SUCCESS The data was read correctly from the
> > device.
> > + @retval EFI_DEVICE_ERROR The device reported an error while
> > performing the read.
> > + @retval EFI_NO_MEDIA There is no media in the device.
> > + @retval EFI_MEDIA_CHANGED The MediaId does not matched the current
> > device.
> > + @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block
> > size of the device.
> > + @retval EFI_INVALID_PARAMETER The read request contains LBAs that are
> > not valid,
> > + or the buffer is not on proper alignment.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +XenPvBlkDxeBlockIoReadBlocks (
> > + IN EFI_BLOCK_IO_PROTOCOL *This,
> > + IN UINT32 MediaId,
> > + IN EFI_LBA Lba,
> > + IN UINTN BufferSize,
> > + OUT VOID *Buffer
> > + );
> > +
> > +/**
> > + Write BufferSize bytes from Lba into Buffer.
> > +
> > + @param This Indicates a pointer to the calling context.
> > + @param MediaId The media ID that the write request is for.
> > + @param Lba The starting logical block address to be written. The
> > caller is
> > + responsible for writing to only legitimate locations.
> > + @param BufferSize Size of Buffer, must be a multiple of device block
> > size.
> > + @param Buffer A pointer to the source buffer for the data.
> > +
> > + @retval EFI_SUCCESS The data was written correctly to the
> > device.
> > + @retval EFI_WRITE_PROTECTED The device can not be written to.
> > + @retval EFI_DEVICE_ERROR The device reported an error while
> > performing the write.
> > + @retval EFI_NO_MEDIA There is no media in the device.
> > + @retval EFI_MEDIA_CHNAGED The MediaId does not matched the current
> > device.
> > + @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block
> > size of the device.
> > + @retval EFI_INVALID_PARAMETER The write request contains LBAs that are
> > not valid,
> > + or the buffer is not on proper alignment.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +XenPvBlkDxeBlockIoWriteBlocks (
> > + IN EFI_BLOCK_IO_PROTOCOL *This,
> > + IN UINT32 MediaId,
> > + IN EFI_LBA Lba,
> > + IN UINTN BufferSize,
> > + IN VOID *Buffer
> > + );
> > +
> > +/**
> > + Flush the Block Device.
> > +
> > + @param This Indicates a pointer to the calling context.
> > +
> > + @retval EFI_SUCCESS All outstanding data was written to the device
> > + @retval EFI_DEVICE_ERROR The device reported an error while writting
> > back the data
> > + @retval EFI_NO_MEDIA There is no media in the device.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +XenPvBlkDxeBlockIoFlushBlocks (
> > + IN EFI_BLOCK_IO_PROTOCOL *This
> > + );
> > +
> > +/**
> > + Reset the block device hardware.
> > +
> > + @param[in] This Indicates a pointer to the calling
> > context.
> > + @param[in] ExtendedVerification Indicates that the driver may perform a
> > more
> > + exhausive verfication operation of the
> > device
> > + during reset.
> > +
> > + @retval EFI_SUCCESS The device was reset.
> > + @retval EFI_DEVICE_ERROR The device is not functioning properly and
> > could
> > + not be reset.
> > +
> > +**/
> > +EFI_STATUS
> > +EFIAPI
> > +XenPvBlkDxeBlockIoReset (
> > + IN EFI_BLOCK_IO2_PROTOCOL *This,
> > + IN BOOLEAN ExtendedVerification
> > + );
> > +
> > +extern EFI_BLOCK_IO_MEDIA gXenPvBlkDxeBlockIoMedia;
> > +extern EFI_BLOCK_IO_PROTOCOL gXenPvBlkDxeBlockIo;
> > diff --git a/OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.c
> > b/OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.c
> > index 7ec7d60..3991e83 100644
> > --- a/OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.c
> > +++ b/OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.c
> > @@ -266,6 +266,7 @@ XenPvBlkDxeDriverBindingStart (
> > EFI_STATUS Status;
> > XENBUS_PROTOCOL *XenbusIo;
> > XEN_BLOCK_FRONT_DEVICE *Dev;
> > + EFI_BLOCK_IO_MEDIA *Media;
> >
> > Status = gBS->OpenProtocol (
> > ControllerHandle,
> > @@ -284,6 +285,37 @@ XenPvBlkDxeDriverBindingStart (
> > return Status;
> > }
> >
> > + CopyMem (&Dev->BlockIo, &gXenPvBlkDxeBlockIo, sizeof
> > (EFI_BLOCK_IO_PROTOCOL));
> > + Media = AllocateCopyPool (sizeof (EFI_BLOCK_IO_MEDIA),
> > + &gXenPvBlkDxeBlockIoMedia);
> > + if (Dev->MediaInfo.VDiskInfo & VDISK_REMOVABLE) {
> > + Media->RemovableMedia = TRUE;
> > + }
> > + Media->MediaPresent = TRUE;
> > + Media->ReadOnly = !Dev->MediaInfo.ReadWrite;
> > + if (Dev->MediaInfo.CdRom) {
> > + // If it's a cdrom, the blocksize value need to be 2048 for OVMF to
> > + // recognize it as a cdrom:
> > + // MdeModulePkg/Universal/Disk/PartitionDxe/ElTorito.c
> > + Media->BlockSize = 2048;
> > + } else {
> > + Media->BlockSize = Dev->MediaInfo.SectorSize;
> > + }
> > + Media->LastBlock = Dev->MediaInfo.Sectors - 1;
> > + // XXX What about LowestAlignedLba, LogicalBlocksPerPhysicalBlock and
> > OptimalTransferLengthGranularity?
>
> I think you can skip LogicalBlocksPerPhysicalBlock and
> OptimalTransferLengthGranularity
> as they are used for discard operations.
Ok.
> The LowestAlignedLba .. no idea.
I think in pv block case, LowestAlignedLba will always be 0.
> > + Dev->BlockIo.Media = Media;
> > +
> > + Status = gBS->InstallMultipleProtocolInterfaces (
> > + &ControllerHandle,
> > + &gEfiBlockIoProtocolGuid, &Dev->BlockIo,
> > + NULL
> > + );
> > + if (EFI_ERROR (Status)) {
> > + // XXX: uninit everythings
>
> XenPvBlockFrontShutdown (Dev); ?
> FreePool(Media) ?
Yes.
> > + DEBUG ((EFI_D_ERROR, "XenPvBlk: install protocol fail: %r\n", Status));
> > + return Status;
> > + }
> > +
> > return EFI_SUCCESS;
> > }
> >
> > @@ -322,6 +354,33 @@ XenPvBlkDxeDriverBindingStop (
> > IN EFI_HANDLE *ChildHandleBuffer OPTIONAL
> > )
> > {
> > + EFI_BLOCK_IO_PROTOCOL *BlockIo;
> > + XEN_BLOCK_FRONT_DEVICE *Dev;
> > + EFI_BLOCK_IO_MEDIA *Media;
> > + EFI_STATUS Status;
> > +
> > + Status = gBS->OpenProtocol (
> > + ControllerHandle, &gEfiBlockIoProtocolGuid,
> > + (VOID **)&BlockIo,
> > + This->DriverBindingHandle, ControllerHandle,
> > + EFI_OPEN_PROTOCOL_GET_PROTOCOL
> > + );
> > + if (EFI_ERROR (Status)) {
> > + return Status;
> > + }
> > +
> > + Status = gBS->UninstallProtocolInterface (ControllerHandle,
> > + &gEfiBlockIoProtocolGuid, BlockIo);
> > + if (EFI_ERROR (Status)) {
> > + return Status;
> > + }
> > +
> > + Media = BlockIo->Media;
> > + Dev = XEN_BLOCK_FRONT_FROM_BLOCK_IO (BlockIo);
> > + XenPvBlockFrontShutdown (Dev);
> > +
> > + FreePool (Media);
> > +
> > gBS->CloseProtocol (ControllerHandle, &gXenbusProtocolGuid,
> > This->DriverBindingHandle, ControllerHandle);
> >
> > diff --git a/OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.h
> > b/OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.h
> > index 186d0ee..3120137 100644
> > --- a/OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.h
> > +++ b/OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.h
> > @@ -76,6 +76,7 @@ extern EFI_COMPONENT_NAME_PROTOCOL
> > gXenPvBlkDxeComponentName;
> > //
> > #include "DriverBinding.h"
> > #include "ComponentName.h"
> > +#include "BlockIo.h"
> >
> >
> >
> > diff --git a/OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
> > b/OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
> > index a43d006..b379020 100644
> > --- a/OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
> > +++ b/OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
> > @@ -32,6 +32,8 @@
> > ComponentName.h
> > BlockFront.c
> > BlockFront.h
> > + BlockIo.c
> > + BlockIo.h
> >
> >
> > [LibraryClasses]
> > --
> > Anthony PERARD
> >
> >
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxx
> > http://lists.xen.org/xen-devel
--
Anthony PERARD
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