lkml.org 
[lkml]   [2021]   [Nov]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    SubjectRe: Thoughts of AMX KVM support based on latest kernel
    From
    On 11/17/21 11:15, Tian, Kevin wrote:
    > We are not sure whether such trick is worthwhile, since a sane
    > guest shouldn't set XFD[AMX]=1 before storing the AMX state. This
    > is why we want to seek SDM change to mark out that the software
    > should not assume XTILEDATA is still valid when XFD[AMX]=1.

    Okay, I just don't want it to be called out as virtualization specific.

    It doesn't have to happen in current processors, but it should be
    architecturally valid behavior to clear the processor's state as soon as
    a bit in XFD is set to 1.

    Paolo

    \
     
     \ /
      Last update: 2021-11-17 13:54    [W:3.445 / U:0.008 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site