[Xen-changelog] [xen master] x86/dom0: Don't allow dom0_max_vcpus to be zero

[patchbot@xxxxxxx]

commit c5e64ba6152309b770487bf143f2e49af45f9257
Author:     Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
AuthorDate: Thu Apr 9 16:38:43 2015 -0400
Commit:     Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
CommitDate: Fri Apr 10 11:35:52 2015 -0400

    x86/dom0: Don't allow dom0_max_vcpus to be zero
    
    In case dom0_max_vcpus is incorrectly specified on boot line make sure
    we will still boot.
    
    Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
 xen/arch/x86/domain_build.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/xen/arch/x86/domain_build.c b/xen/arch/x86/domain_build.c
index e5c845c..378e650 100644
--- a/xen/arch/x86/domain_build.c
+++ b/xen/arch/x86/domain_build.c
@@ -92,6 +92,8 @@ static void __init parse_dom0_max_vcpus(const char *s)
     else                               /* N, N-, or N-M */
     {
         opt_dom0_max_vcpus_min = simple_strtoul(s, &s, 0);
+        if ( opt_dom0_max_vcpus_min == 0 )
+            opt_dom0_max_vcpus_min = 1;
         if ( !*s )                    /* N */
             opt_dom0_max_vcpus_max = opt_dom0_max_vcpus_min;
         else if ( *s++ == '-' && *s ) /* N-M */
--
generated by git-patchbot for /home/xen/git/xen.git#master

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