Re: [Qemu-devel] [PATCH 12/29] kvm: remove special handling of DIRTY_MEMORY_MIGRATION in the dirty log mask

[Fam Zheng]

On Mon, 04/27 18:28, Paolo Bonzini wrote:
> One recent example is commit 4cc856f (kvm-all: Sync dirty-bitmap from
> kvm before kvm destroy the corresponding dirty_bitmap, 2015-04-02).
> Another performance problem is that KVM keeps tracking dirty pages
> after a failed live migration, which causes bad performance due to
> disallowing huge page mapping.
> 
> Thanks to the previous patch, KVM can now stop hooking into
> log_global_start/stop.  This simplifies the KVM code noticeably.
> 
> Reported-by: Wanpeng Li <address@hidden>
> Reported-by: Xiao Guangrong <address@hidden>
> Signed-off-by: Paolo Bonzini <address@hidden>

Reviewed-by: Fam Zheng <address@hidden>