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From: Corinna Vinschen <corinna@sourceware.org>
To: cygwin-cvs@sourceware.org
Subject: [newlib-cygwin] proc_cpuinfo: Add PPIN support for AMD
Date: Tue, 14 Apr 2020 10:37:33 +0000 (GMT) [thread overview]
Message-ID: <20200414103733.48E95385BF83@sourceware.org> (raw)
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=073edd532910230b992fdd30edd726403aab3854
commit 073edd532910230b992fdd30edd726403aab3854
Author: Brian Inglis <Brian.Inglis@SystematicSW.ab.ca>
Date: Fri Apr 10 22:35:28 2020 -0600
proc_cpuinfo: Add PPIN support for AMD
Newer AMD CPUs support a feature called protected processor
identification number (PPIN). This feature can be detected via
CPUID_Fn80000008_EBX[23].
Diff:
---
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 03ec621f4..f1bc1c740 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 */
reply other threads:[~2020-04-14 10:37 UTC|newest]
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