[newlib-cygwin] fhandler_proc.cc(format_proc_cpuinfo): add tsxldtrk, sev_es flags

[newlib-cygwin] fhandler_proc.cc(format_proc_cpuinfo): add tsxldtrk, sev_es flags

[Ken Brown]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=1732249529c3a4d223940fea2b0143e63bb47e3a

commit 1732249529c3a4d223940fea2b0143e63bb47e3a
Author: Brian Inglis <Brian.Inglis@SystematicSW.ab.ca>
Date:   Thu Sep 17 12:51:25 2020 -0600

    fhandler_proc.cc(format_proc_cpuinfo): add tsxldtrk, sev_es flags
    
    Add linux-next cpuinfo flags for Intel TSX suspend load address tracking
    instructions and AMD Secure Encrypted Virtualization with Encrypted State.

Diff:
---
 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 196bafd18..6f6e8291a 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 */