Re: Rewording of Setting IA32_XFD[18] (Re: Thoughts of AMX KVM support based on latest kernel)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 12/8/21 01:50, Nakajima, Jun wrote:
3.3 RECOMMENDATIONS FOR SYSTEM SOFTWARE

System software may disable use of Intel AMX by clearing XCR0[18:17],
by clearing CR4.OSXSAVE, or by setting IA32_XFD[18]. System software
should initialize AMX state (e.g., by executing TILERELEASE) when
doing so because maintaining AMX state in a non-initialized state may
have negative power and performance implications. In addition,
software should not rely on the state of the tile data after setting

I would change this to "must not rely", otherwise looks good.  Thanks!

Paolo

IA32_XFD[18]; software should always reload or reinitialize the tile
data after clearing IA32_XFD[18].





[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux