diff options
| author | Stefano Stabellini <Stefano.Stabellini@eu.citrix.com> | 2012-10-03 13:08:52 -0400 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-10-03 13:03:32 -0400 |
| commit | 4ed5978bdd99114db7773cb3d78f2998bd17f694 (patch) | |
| tree | 7d4cf90f362dfcda4fc7fbc7fca3baec433b1eb7 /include/xen | |
| parent | 2e3d88602814e5fd5b88d5c73be3305060c473b6 (diff) | |
xen/xen_initial_domain: check that xen_start_info is initialized
Since commit commit 4c071ee5268f7234c3d084b6093bebccc28cdcba ("arm:
initial Xen support") PV on HVM guests can be xen_initial_domain.
However PV on HVM guests might have an unitialized xen_start_info, so
check before accessing its fields.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'include/xen')
| -rw-r--r-- | include/xen/xen.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/xen/xen.h b/include/xen/xen.h index 2c0d3a56c749..a74d4362c4f8 100644 --- a/include/xen/xen.h +++ b/include/xen/xen.h | |||
| @@ -24,7 +24,7 @@ extern enum xen_domain_type xen_domain_type; | |||
| 24 | #include <asm/xen/hypervisor.h> | 24 | #include <asm/xen/hypervisor.h> |
| 25 | 25 | ||
| 26 | #define xen_initial_domain() (xen_domain() && \ | 26 | #define xen_initial_domain() (xen_domain() && \ |
| 27 | xen_start_info->flags & SIF_INITDOMAIN) | 27 | xen_start_info && xen_start_info->flags & SIF_INITDOMAIN) |
| 28 | #else /* !CONFIG_XEN_DOM0 */ | 28 | #else /* !CONFIG_XEN_DOM0 */ |
| 29 | #define xen_initial_domain() (0) | 29 | #define xen_initial_domain() (0) |
| 30 | #endif /* CONFIG_XEN_DOM0 */ | 30 | #endif /* CONFIG_XEN_DOM0 */ |