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| author | Brian Inglis <Brian.Inglis@SystematicSW.ab.ca> | 2020-10-13 09:11:08 -0600 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2020-10-13 18:14:02 +0200 |
| commit | 3fd14da2c36f32a6a8d5b8f2f6ed6fc38b9e90e3 (patch) | |
| tree | 0bd8c1a23d6e30914bf63b15c35e1fd5ac311ae2 /winsup | |
| parent | 1ed2fe0f03f4c8f9cb663c36720e786a229bcabe (diff) | |
| download | newlib-3fd14da2c36f32a6a8d5b8f2f6ed6fc38b9e90e3.zip newlib-3fd14da2c36f32a6a8d5b8f2f6ed6fc38b9e90e3.tar.gz newlib-3fd14da2c36f32a6a8d5b8f2f6ed6fc38b9e90e3.tar.bz2 | |
format_proc_cpuinfo: add enqcmd cpuinfo flag
Add linux-next 5.9 cpuinfo flag for Intel enqcmd/s instructions:
x86/cpufeatures: Enumerate ENQCMD and ENQCMDS instructions:
Work submission instruction comes in two flavors. ENQCMD can be called
both in ring 3 and ring 0 and always uses the contents of a PASID MSR
when shipping the command to the device. ENQCMDS allows a kernel driver
to submit commands on behalf of a user process. The driver supplies the
PASID value in ENQCMDS. There isn't any usage of ENQCMD in the kernel as
of now.
The CPU feature flag is shown as "enqcmd" in /proc/cpuinfo.
Diffstat (limited to 'winsup')
| -rw-r--r-- | winsup/cygwin/fhandler_proc.cc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/winsup/cygwin/fhandler_proc.cc b/winsup/cygwin/fhandler_proc.cc index 6f6e829..1339715 100644 --- a/winsup/cygwin/fhandler_proc.cc +++ b/winsup/cygwin/fhandler_proc.cc @@ -1563,6 +1563,7 @@ format_proc_cpuinfo (void *, char *&destbuf) ftcprint (features1, 25, "cldemote"); /* cldemote instr */ ftcprint (features1, 27, "movdiri"); /* movdiri instr */ ftcprint (features1, 28, "movdir64b"); /* movdir64b instr */ + ftcprint (features1, 29, "enqcmd"); /* enqcmd/s instructions*/ } /* AMD MCA cpuid 0x80000007 ebx */ |