mirror of
https://github.com/torvalds/linux.git
synced 2024-11-01 17:51:43 +00:00
4ed5978bdd
Since commit commit 4c071ee526 ("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>
33 lines
871 B
C
33 lines
871 B
C
#ifndef _XEN_XEN_H
|
|
#define _XEN_XEN_H
|
|
|
|
enum xen_domain_type {
|
|
XEN_NATIVE, /* running on bare hardware */
|
|
XEN_PV_DOMAIN, /* running in a PV domain */
|
|
XEN_HVM_DOMAIN, /* running in a Xen hvm domain */
|
|
};
|
|
|
|
#ifdef CONFIG_XEN
|
|
extern enum xen_domain_type xen_domain_type;
|
|
#else
|
|
#define xen_domain_type XEN_NATIVE
|
|
#endif
|
|
|
|
#define xen_domain() (xen_domain_type != XEN_NATIVE)
|
|
#define xen_pv_domain() (xen_domain() && \
|
|
xen_domain_type == XEN_PV_DOMAIN)
|
|
#define xen_hvm_domain() (xen_domain() && \
|
|
xen_domain_type == XEN_HVM_DOMAIN)
|
|
|
|
#ifdef CONFIG_XEN_DOM0
|
|
#include <xen/interface/xen.h>
|
|
#include <asm/xen/hypervisor.h>
|
|
|
|
#define xen_initial_domain() (xen_domain() && \
|
|
xen_start_info && xen_start_info->flags & SIF_INITDOMAIN)
|
|
#else /* !CONFIG_XEN_DOM0 */
|
|
#define xen_initial_domain() (0)
|
|
#endif /* CONFIG_XEN_DOM0 */
|
|
|
|
#endif /* _XEN_XEN_H */
|