On Thu, Jan 25, 2024 at 07:06:54PM +0100, Maciej S. Szmigiero wrote:
> From: "Maciej S. Szmigiero" <maciej.szmigiero@xxxxxxxxxx>
>
> The stable kernel version backport of the patch disabling XSAVES on AMD
> Zen family 0x17 applied this change to the wrong function (init_amd_k6()),
> one which isn't called for Zen CPUs.
>
> Move the erratum to the init_amd_zn() function instead.
>
> Add an explicit family 0x17 check to the erratum so nothing will break if
> someone naively makes this kernel version call init_amd_zn() also for
> family 0x19 in the future (as the current upstream code does).
>
> Fixes: f028a7db9824 ("x86/CPU/AMD: Disable XSAVES on AMD family 0x17")
> Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@xxxxxxxxxx>
> ---
> arch/x86/kernel/cpu/amd.c | 20 +++++++++++---------
> 1 file changed, 11 insertions(+), 9 deletions(-)
>
Both fixes now queued up, thanks.
greg k-h
