[PATCH] fhandler_proc.cc(format_proc_cpuinfo): add tsxldtrk, sev_es flags
Ken Brown
kbrown@cornell.edu
Thu Sep 17 22:34:15 GMT 2020
On 9/17/2020 2:51 PM, Brian Inglis wrote:
> Add linux-next cpuinfo flags for Intel TSX suspend load address tracking
> instructions and AMD Secure Encrypted Virtualization with Encrypted State
> ---
> winsup/cygwin/fhandler_proc.cc | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/winsup/cygwin/fhandler_proc.cc b/winsup/cygwin/fhandler_proc.cc
> index 196bafd18993..6f6e8291a0ca 100644
> --- a/winsup/cygwin/fhandler_proc.cc
> +++ b/winsup/cygwin/fhandler_proc.cc
> @@ -1376,6 +1376,7 @@ format_proc_cpuinfo (void *, char *&destbuf)
> cpuid (&features2, &unused, &unused, &unused, 0x8000001f);
>
> ftcprint (features2, 1, "sev"); /* secure encrypted virt */
> + /*ftcprint (features2, 3, "sev_es"); - print below */
> }
> /* cpuid 0x80000008 ebx */
> if (maxe >= 0x80000008)
> @@ -1400,6 +1401,12 @@ format_proc_cpuinfo (void *, char *&destbuf)
> /* ftcprint (features1, 26, "ssb_no"); *//* ssb fixed in hardware */
> }
>
> + /* cpuid 0x8000001f eax - set above */
> + if (maxe >= 0x8000001f)
> + {
> + ftcprint (features2, 3, "sev_es"); /* AMD SEV encrypted state */
> + }
> +
> /* cpuid 0x00000007 ebx */
> if (maxf >= 0x00000007)
> {
> @@ -1579,6 +1586,7 @@ format_proc_cpuinfo (void *, char *&destbuf)
> ftcprint (features1, 8, "avx512_vp2intersect"); /* vec intcpt d/q */
> ftcprint (features1, 10, "md_clear"); /* verw clear buf */
> ftcprint (features1, 14, "serialize"); /* SERIALIZE instruction */
> + ftcprint (features1, 16, "tsxldtrk"); /* TSX Susp Ld Addr Track */
> ftcprint (features1, 18, "pconfig"); /* platform config */
> ftcprint (features1, 19, "arch_lbr"); /* last branch records */
> ftcprint (features1, 28, "flush_l1d"); /* flush l1d cache */
Pushed with a trivial change (added a period at the end of the commit message).
Thanks.
Ken
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