[PATCH] proc_cpuinfo: Add PPIN support for AMD
Corinna Vinschen
corinna-cygwin@cygwin.com
Tue Apr 14 10:37:48 GMT 2020
On Apr 10 22:35, Brian Inglis wrote:
> Newer AMD CPUs support a feature called protected processor
> identification number (PPIN). This feature can be detected via
> CPUID_Fn80000008_EBX[23].
> ---
> winsup/cygwin/fhandler_proc.cc | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/winsup/cygwin/fhandler_proc.cc b/winsup/cygwin/fhandler_proc.cc
> index 605a8443f0..5c5f4bd9ef 100644
> --- a/winsup/cygwin/fhandler_proc.cc
> +++ b/winsup/cygwin/fhandler_proc.cc
> @@ -1262,6 +1262,7 @@ format_proc_cpuinfo (void *, char *&destbuf)
> /* ftcprint (features1, 14, "ibrs" ); */ /* ind br restricted spec */
> /* ftcprint (features1, 15, "stibp"); */ /* 1 thread ind br pred */
> /* ftcprint (features1, 17, "stibp_always_on"); */ /* stibp always on */
> + ftcprint (features1, 23, "amd_ppin"); /* protected proc id no */
> /* ftcprint (features1, 24, "ssbd"); */ /* spec store byp dis */
> ftcprint (features1, 25, "virt_ssbd"); /* vir spec store byp dis */
> /* ftcprint (features1, 26, "ssb_no"); */ /* ssb fixed in hardware */
> --
> 2.21.0
Pushed.
Thanks,
Corinna
--
Corinna Vinschen
Cygwin Maintainer
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