[Xen-changelog] [xen stable-4.7] xl: correct xl cpupool-numa-split with vcpu limited dom0

[patchbot@xxxxxxx]

commit 78a30103813a7929e922de7414cc56fa2ae52984
Author:     Juergen Gross <jgross@xxxxxxxx>
AuthorDate: Tue Jun 14 06:30:58 2016 +0200
Commit:     Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
CommitDate: Mon Aug 15 11:17:26 2016 +0100

    xl: correct xl cpupool-numa-split with vcpu limited dom0
    
    When trying to use xl cpupool-numa-split and dom0 is limited to less
    vcpus than one numa node the operation will fail.
    
    Correct this by allowing this configuration.
    
    Reported-by: Glenn Enright <glenn@xxxxxxxxxxxxxxx>
    Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
    Reviewed-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
    Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    (cherry picked from commit c256d2afc1cad0cca912492e338d6ff97e477c4f)
---
 tools/libxl/xl_cmdimpl.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index d8530f0..14aa89e 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -8492,7 +8492,11 @@ int main_cpupoolnumasplit(int argc, char **argv)
             n++;
         }
     }
-    if (libxl_set_vcpuonline(ctx, 0, &cpumap)) {
+    if (libxl_domain_info(ctx, &info, 0)) {
+        fprintf(stderr, "error on getting info for Domain-0\n");
+        goto out;
+    }
+    if (info.vcpu_online > n && libxl_set_vcpuonline(ctx, 0, &cpumap)) {
         fprintf(stderr, "error on removing vcpus for Domain-0\n");
         goto out;
     }
@@ -8507,7 +8511,7 @@ int main_cpupoolnumasplit(int argc, char **argv)
             fprintf(stderr, "error on getting info for Domain-0\n");
             goto out;
         }
-        if (info.vcpu_online == n) {
+        if (info.vcpu_online <= n) {
             break;
         }
         sleep(1);
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.7

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