Il 30/06/2014 16:03, Xiongzi Ge ha scritto:It didn't invalidate anything in the guest, and there's *NO WAY* absolutely for QEMU to influence the cache in the guest.
I tried. It invalidated the cache of the block device after migration.
Again: all you can do is use O_DIRECT in the guest.I don't understand what you mean.
So, here, we can use a new cache for the block device after migration.
Probably not.
Is it right? I can implement a simple block driver in block/ directory.
Paolo