Hi Song, On 2/23/22 02:12, Song Liu wrote: > On Mon, Feb 21, 2022 at 9:05 PM Naveen Krishna Chatradhi > <nchatrad@xxxxxxx> wrote: >> >> From: Suma Hegde <suma.hegde@xxxxxxx> >> >> Recent Fam19h EPYC server line of processors from AMD support system >> management functionality via HSMP (Host System Management Port) interface. >> >> The Host System Management Port (HSMP) is an interface to provide >> OS-level software with access to system management functions via a >> set of mailbox registers. >> >> More details on the interface can be found in chapter >> "7 Host System Management Port (HSMP)" of the following PPR >> https://www.amd.com/system/files/TechDocs/55898_B1_pub_0.50.zip >> >> This patch adds new amd_hsmp module under the drivers/platforms/x86/ >> which creates miscdevice with an IOCTL interface to the user space. >> /dev/hsmp is for running the hsmp mailbox commands. >> >> Signed-off-by: Suma Hegde <suma.hegde@xxxxxxx> >> Signed-off-by: Naveen Krishna Chatradhi <nchatrad@xxxxxxx> >> Reviewed-by: Carlos Bilbao <carlos.bilbao@xxxxxxx> >> Acked-by: Song Liu <song@xxxxxxxxxx> >> Reviewed-by: Nathan Fontenot <nathan.fontenot@xxxxxxx> > > What would be the next step for this set? We are hoping to back port it > to our kernel to unblock some tests. Ideally, we would like to do the > back port after it is applied to pdx86 tree. I plan to review this tomorrow, since it has already seen a lot of other reviews it will hopefully be fine and then I will merge it into the pdx86 tree tomorrow. Regards, Hans
