[newlib-cygwin] format_proc_cpuinfo: add v_spec_ctrl, bus_lock_detect

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=5eb232ede72e394e280d1a23131267c7002d2c52

commit 5eb232ede72e394e280d1a23131267c7002d2c52
Author: Brian Inglis <Brian.Inglis@SystematicSW.ab.ca>
Date:   Tue Apr 27 17:28:52 2021 -0600

    format_proc_cpuinfo: add v_spec_ctrl, bus_lock_detect
    
    Linux 5.12 Frozen Wasteland added features and changes:
    add AMD 0x8000000a EDX:20 v_spec_ctrl virtual speculation control support
    add Intel 0x00000007 ECX:24 bus_lock_detect bus lock detect debug exception

Diff:
---
 winsup/cygwin/fhandler_proc.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/winsup/cygwin/fhandler_proc.cc b/winsup/cygwin/fhandler_proc.cc
index 501c157da..7cd0b3af0 100644
--- a/winsup/cygwin/fhandler_proc.cc
+++ b/winsup/cygwin/fhandler_proc.cc
@@ -1519,6 +1519,7 @@ format_proc_cpuinfo (void *, char *&destbuf)
 	  ftcprint (features1, 13, "avic");             /* virt int control */
 	  ftcprint (features1, 15, "v_vmsave_vmload");  /* virt vmsave vmload */
 	  ftcprint (features1, 16, "vgif");             /* virt glb int flag */
+	  ftcprint (features1, 20, "v_spec_ctrl");	/* virt spec ctrl support */
 /*	  ftcprint (features1, 28, "svme_addr_chk");  *//* secure vmexit addr check */
         }
 
@@ -1542,6 +1543,7 @@ format_proc_cpuinfo (void *, char *&destbuf)
 	  ftcprint (features1, 14, "avx512_vpopcntdq"); /* vec popcnt dw/qw */
 	  ftcprint (features1, 16, "la57");             /* 5 level paging */
 	  ftcprint (features1, 22, "rdpid");            /* rdpid instruction */
+	  ftcprint (features1, 24, "bus_lock_detect");	/* bus lock detect dbg excptn */
 	  ftcprint (features1, 25, "cldemote");         /* cldemote instr */
 	  ftcprint (features1, 27, "movdiri");          /* movdiri instr */
 	  ftcprint (features1, 28, "movdir64b");        /* movdir64b instr */