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prctl.2: ffix 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2018-05-28 12:19:29 +02:00
parent e23acd79f9
commit e36dfb8186
1 changed files with 9 additions and 10 deletions
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19
man2/prctl.2
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@ -1013,7 +1013,7 @@ Returns the state of the speculation misfeature which is selected with
the value of the value of
.IR arg2 , .IR arg2 ,
which must be which must be
.B PR_SPEC_STORE_BYPASS. .BR PR_SPEC_STORE_BYPASS .
Otherwise the call fails with the error Otherwise the call fails with the error
.BR ENODEV . .BR ENODEV .
The return value uses bit 0-3 with the following meaning: The return value uses bit 0-3 with the following meaning:
@ -1036,22 +1036,21 @@ but cannot be undone.
.RE .RE
.IP .IP
If all bits are If all bits are
.B 0 0
then the CPU is not affected by the speculation misfeature. then the CPU is not affected by the speculation misfeature.
.IP .IP
If If
.B PR_SPEC_PRCTL .B PR_SPEC_PRCTL
is set, then the per task control of the mitigation is available. If not set, is set, then the per task control of the mitigation is available. If not set,
.B prctl() .BR prctl ()
for the speculation misfeature will fail. for the speculation misfeature will fail.
In the above operation In the above operation
.I arg3 .IR arg3 ,
, .IR arg4 ,
.I arg4,
and and
.I arg5 .I arg5
must be specified as 0, otherwise the call fails with the error must be specified as 0, otherwise the call fails with the error
.BR EINVAL. .BR EINVAL .
.TP .TP
.BR PR_SET_SPECULATION_CTRL .BR PR_SET_SPECULATION_CTRL
Sets the state of the speculation misfeature which is selected with Sets the state of the speculation misfeature which is selected with
@ -1079,7 +1078,7 @@ but cannot be undone. A subsequent
.B .B
prctl(..., PR_SPEC_ENABLE) prctl(..., PR_SPEC_ENABLE)
will fail with will fail with
.BR EPERM. .BR EPERM .
.RE .RE
.IP .IP
Any other value in Any other value in
@ -1091,7 +1090,7 @@ Also
and and
.I arg5 .I arg5
must be specified as 0, otherwise the call fails with ethe rror must be specified as 0, otherwise the call fails with ethe rror
.BR EINVAL. .BR EINVAL .
.IP .IP
Furtheremore this speculation feature can also be controlled by the boot-time Furtheremore this speculation feature can also be controlled by the boot-time
parameter of parameter of
@ -1711,7 +1710,7 @@ was
or or
.BR PR_SET_SPECULATION_CTRL .BR PR_SET_SPECULATION_CTRL
and unused arguments to and unused arguments to
.B prctl() .BR prctl ()
are not 0. are not 0.
.SH VERSIONS .SH VERSIONS
The The