[Xen-changelog] [xen stable-4.11] tools/misc/xenpm: fix getting info when some CPUs are offline

[patchbot@xxxxxxx]

commit 5c6be595b1bc5d4216fb8fd54f9ed7a0a8ce076e
Author:     Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
AuthorDate: Wed Oct 31 14:04:58 2018 +0100
Commit:     Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
CommitDate: Thu May 16 16:52:59 2019 +0100

    tools/misc/xenpm: fix getting info when some CPUs are offline
    
    Use physinfo.max_cpu_id instead of physinfo.nr_cpus to get max CPU id.
    This fixes for example 'xenpm get-cpufreq-para' with smt=off, which
    otherwise would miss half of the cores.
    
    Signed-off-by: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
    Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    (cherry picked from commit ffb60a58df48419c1f2607cd3cc919fa2bfc9c2d)
---
 tools/misc/xenpm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/misc/xenpm.c b/tools/misc/xenpm.c
index 0e1968a23d..01c3b9675d 100644
--- a/tools/misc/xenpm.c
+++ b/tools/misc/xenpm.c
@@ -1231,7 +1231,7 @@ int main(int argc, char *argv[])
         xc_interface_close(xc_handle);
         return ret;
     }
-    max_cpu_nr = physinfo.nr_cpus;
+    max_cpu_nr = physinfo.max_cpu_id + 1;
 
     /* calculate how many options match with user's input */
     for ( i = 0; i < ARRAY_SIZE(main_options); i++ )
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.11

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