在 2016年06月02日 03:07, Mark Cave-Ayland 写道:
On 23/05/16 13:54, Paolo Bonzini wrote:
>These are replacements for blk_aio_preadv and blk_aio_pwritev that allow
>customization of the data path. They reuse the DMA helpers' DMAIOFunc
>callback type, so that the same function can be used in either the
>QEMUSGList or the bounce-buffered case.
>
>This customization will be needed in the next patch to do zero-copy
>SG_IO on scsi-block.
>
>Signed-off-by: Paolo Bonzini<[email protected]>
>---
> hw/scsi/scsi-disk.c | 63
+++++++++++++++++++++++++++++++++++++++++++----------
> 1 file changed, 52 insertions(+), 11 deletions(-)
>
Hi Paolo,
This patch appears to break qemu-system-sparc booting from CDROM with
the following command line:
./qemu-system-sparc -cdrom debian-40r4a-sparc-netinst.iso -boot d
Instead of booting straight into SILO, OpenBIOS hangs when trying to
read from the CDROM device.
Paolo:
By using git bisect on master branch , I found this patch also break
qemu-system-arm from booting.
command line:
qemu-system-arm -M versatilepb -kernel vmlinuz-3.2.0-4-versatile
-initrd initrd.img-3.2.0-4-versatile -hda
/home/hitmoon/debian_wheezy_armel_standard.qcow2 -append 'root=/dev/sda1'
The booting process stops at mounting the root partition and after
timeout droped into a initramfs shell. The device '/dev/sda1' is
presented . I guess it can not read properly from sda1.
