Re: [PATCH QEMU v23 12/18] memory: Set DIRTY_MEMORY_MIGRATION when IOMMU is enabled

["Dr. David Alan Gilbert" <dgilbert@redhat.com>]

* Kirti Wankhede (kwankhede@nvidia.com) wrote:
> Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>

can you add a more detailed commit message here please; I don't quite
get the purpose; Alex previously speculated this is about adding it to
dirty tracking; but please explain it in the commit message.

Dave

> ---
>  memory.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/memory.c b/memory.c
> index a6c69e1391ba..27f22f1a9974 100644
> --- a/memory.c
> +++ b/memory.c
> @@ -1788,7 +1788,7 @@ bool memory_region_is_ram_device(MemoryRegion *mr)
>  uint8_t memory_region_get_dirty_log_mask(MemoryRegion *mr)
>  {
>      uint8_t mask = mr->dirty_log_mask;
> -    if (global_dirty_log && mr->ram_block) {
> +    if (global_dirty_log && (mr->ram_block || memory_region_is_iommu(mr))) {
>          mask |= (1 << DIRTY_MEMORY_MIGRATION);
>      }
>      return mask;
> -- 
> 2.7.0
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK