perf tools: Tidy guest option documentation

Move common guest options into include files. Use attribute substitution to
customize an example, using "[verse]" to define the block instead of a
"literal" block which does not permit substitution.

Signed-off-by: Adrian Hunter <[e-mail]>
Cc: Ian Rogers <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/Documentation/guest-files.txt

···
+include::guestmount.txt[]
+
+--guestkallsyms=<path>::
+	Guest OS /proc/kallsyms file copy. perf reads it to get guest
+	kernel symbols. Users copy it out from guest OS.
+
+--guestmodules=<path>::
+	Guest OS /proc/modules file copy. perf reads it to get guest
+	kernel module information. Users copy it out from guest OS.
+
+--guestvmlinux=<path>::
+	Guest OS kernel vmlinux.
+
+--guest-code::
+	Indicate that guest code can be found in the hypervisor process,
+	which is a common case for KVM test programs.

tools/perf/Documentation/guestmount.txt

···
+--guestmount=<path>::
+	Guest OS root file system mount directory. Users mount guest OS
+	root directories under <path> by a specific filesystem access method,
+	typically, sshfs.
+	For example, start 2 guest OS, one's pid is 8888 and the other's is 9999:
+[verse]
+	$ mkdir \~/guestmount
+	$ cd \~/guestmount
+	$ sshfs -o allow_other,direct_io -p 5551 localhost:/ 8888/
+	$ sshfs -o allow_other,direct_io -p 5552 localhost:/ 9999/
+	$ perf {GMEXAMPLECMD} --guestmount=~/guestmount {GMEXAMPLESUBCMD}

tools/perf/Documentation/perf-inject.txt

···
 	should be used, and also --buildid-all and --switch-events may be
 	useful.
 
---guestmount=<path>::
-	Guest OS root file system mount directory. Users mount guest OS
-	root directories under <path> by a specific filesystem access method,
-	typically, sshfs.
-	For example, start 2 guest OS, one's pid is 8888 and the other's is 9999:
-[verse]
-	$ mkdir \~/guestmount
-	$ cd \~/guestmount
-	$ sshfs -o allow_other,direct_io -p 5551 localhost:/ 8888/
-	$ sshfs -o allow_other,direct_io -p 5552 localhost:/ 9999/
-	$ perf inject --guestmount=~/guestmount
+:GMEXAMPLECMD: inject
+:GMEXAMPLESUBCMD:
+include::guestmount.txt[]
 
 SEE ALSO
 --------

tools/perf/Documentation/perf-kvm.txt

···
         Collect host side performance profile.
 --guest::
         Collect guest side performance profile.
---guestmount=<path>::
-	Guest os root file system mount directory. Users mounts guest os
-        root directories under <path> by a specific filesystem access method,
-	typically, sshfs. For example, start 2 guest os. The one's pid is 8888
-	and the other's is 9999.
-        #mkdir ~/guestmount; cd ~/guestmount
-        #sshfs -o allow_other,direct_io -p 5551 localhost:/ 8888/
-        #sshfs -o allow_other,direct_io -p 5552 localhost:/ 9999/
-        #perf kvm --host --guest --guestmount=~/guestmount top
---guestkallsyms=<path>::
-        Guest os /proc/kallsyms file copy. 'perf' kvm' reads it to get guest
-	kernel symbols. Users copy it out from guest os.
---guestmodules=<path>::
-	Guest os /proc/modules file copy. 'perf' kvm' reads it to get guest
-	kernel module information. Users copy it out from guest os.
---guestvmlinux=<path>::
-	Guest os kernel vmlinux.
---guest-code::
-	Indicate that guest code can be found in the hypervisor process,
-	which is a common case for KVM test programs.
+
+:GMEXAMPLECMD: kvm --host --guest
+:GMEXAMPLESUBCMD: top
+include::guest-files.txt[]
+
 -v::
 --verbose::
 	Be more verbose (show counter open errors, etc).

tools/perf/Documentation/perf-script.txt

···
 	For itrace only show specified functions and their callees for
 	itrace. Multiple functions can be separated by comma.
 
---guestmount=<path>::
-	Guest OS root file system mount directory. Users mount guest OS
-	root directories under <path> by a specific filesystem access method,
-	typically, sshfs.
-	For example, start 2 guest OS, one's pid is 8888 and the other's is 9999:
-[verse]
-	$ mkdir \~/guestmount
-	$ cd \~/guestmount
-	$ sshfs -o allow_other,direct_io -p 5551 localhost:/ 8888/
-	$ sshfs -o allow_other,direct_io -p 5552 localhost:/ 9999/
-	$ perf script --guestmount=~/guestmount
-
---guestkallsyms=<path>::
-	Guest OS /proc/kallsyms file copy. perf reads it to get guest
-	kernel symbols. Users copy it out from guest OS.
-
---guestmodules=<path>::
-	Guest OS /proc/modules file copy. perf reads it to get guest
-	kernel module information. Users copy it out from guest OS.
-
---guestvmlinux=<path>::
-	Guest OS kernel vmlinux.
-
 --switch-on EVENT_NAME::
 	Only consider events after this event is found.
 
···
 	The known limitations include exception handing such as
 	setjmp/longjmp will have calls/returns not match.
 
---guest-code::
-	Indicate that guest code can be found in the hypervisor process,
-	which is a common case for KVM test programs.
+:GMEXAMPLECMD: script
+:GMEXAMPLESUBCMD:
+include::guest-files.txt[]
 
 SEE ALSO
 --------