[dpdk-dev] [PATCH v2 2/7] vhost: get guest/host physical address mappings

[Maxime Coquelin]

On 09/23/2016 06:13 AM, Yuanhan Liu wrote:
> So that we can convert a guest physical address to host physical
> address, which will be used in later Tx zero copy implementation.
>
> MAP_POPULATE is set while mmaping guest memory regions, to make
> sure the page tables are setup and then rte_mem_virt2phy() could
> yield proper physical address.
>
> Signed-off-by: Yuanhan Liu <yuanhan.liu at linux.intel.com>
> ---
>
> v2: - use MAP_POPULATE option to make sure the page table will
>       be already setup while getting the phys address
>
>     - do a simple merge if the last 2 pages are continuous
>
>     - dump guest pages only in debug mode
> ---
>  lib/librte_vhost/vhost.h      |  30 +++++++++++++
>  lib/librte_vhost/vhost_user.c | 100 +++++++++++++++++++++++++++++++++++++++++-
>  2 files changed, 128 insertions(+), 2 deletions(-)
Reviewed-by: Maxime Coquelin <maxime.coquelin@¶edhat.com>

Thanks,
Maxime