[Xen-devel] [PATCH] patch to buffer write ioreq

["Han, Zhu" <zhu.han@xxxxxxxxx>]

This patch implements a new mechanism to buffer the MMIO_WRITE and
PIO_WRITE packet in a queue, and then submit them to qemu-dm in batch.
This could save a lot of domain switch time. We implement this as a
generic one to do ioreq in batch. However, we only use it to batch the
MMIO_WIRTE request for stdvga(0xA0000-0xC0000) in order to solve the
win2k boot issue for hvm domain. 
Without this patch, win2k cannot boot up on HVM domain.

Signed-off-by: Zhu Han <zhu.han@xxxxxxxxx>
Signed-off-by: Eddie Dong <eddie.dong@xxxxxxxxx>
Signed-off-by: Xin Li <xin.b.li@xxxxxxxxx>

Best Regards, 
hanzhu

Attachment: win2k_final.patch
Description: win2k_final.patch

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