| Message ID | 1344263246-28036-13-git-send-email-stefano.stabellini@eu.citrix.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, Aug 06, 2012 at 03:27:16PM +0100, Stefano Stabellini wrote: > Use Xen features to figure out if we are privileged. > > XENFEAT_dom0 was introduced by 23735 in xen-unstable.hg. Looks good. > > Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> > --- > arch/arm/xen/enlighten.c | 7 +++++++ > include/xen/interface/features.h | 3 +++ > 2 files changed, 10 insertions(+), 0 deletions(-) > > diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c > index 102d823..ac3a2d6 100644 > --- a/arch/arm/xen/enlighten.c > +++ b/arch/arm/xen/enlighten.c > @@ -1,6 +1,7 @@ > #include <xen/xen.h> > #include <xen/interface/xen.h> > #include <xen/interface/memory.h> > +#include <xen/features.h> > #include <xen/platform_pci.h> > #include <asm/xen/hypervisor.h> > #include <asm/xen/hypercall.h> > @@ -57,6 +58,12 @@ static int __init xen_guest_init(void) > } > xen_domain_type = XEN_HVM_DOMAIN; > > + xen_setup_features(); > + if (xen_feature(XENFEAT_dom0)) > + xen_start_info->flags |= SIF_INITDOMAIN|SIF_PRIVILEGED; > + else > + xen_start_info->flags &= ~(SIF_INITDOMAIN|SIF_PRIVILEGED); > + > if (!shared_info_page) > shared_info_page = (struct shared_info *) > get_zeroed_page(GFP_KERNEL); > diff --git a/include/xen/interface/features.h b/include/xen/interface/features.h > index b6ca39a..131a6cc 100644 > --- a/include/xen/interface/features.h > +++ b/include/xen/interface/features.h > @@ -50,6 +50,9 @@ > /* x86: pirq can be used by HVM guests */ > #define XENFEAT_hvm_pirqs 10 > > +/* operation as Dom0 is supported */ > +#define XENFEAT_dom0 11 > + > #define XENFEAT_NR_SUBMAPS 1 > > #endif /* __XEN_PUBLIC_FEATURES_H__ */ > -- > 1.7.2.5
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c index 102d823..ac3a2d6 100644 --- a/arch/arm/xen/enlighten.c +++ b/arch/arm/xen/enlighten.c @@ -1,6 +1,7 @@ #include <xen/xen.h> #include <xen/interface/xen.h> #include <xen/interface/memory.h> +#include <xen/features.h> #include <xen/platform_pci.h> #include <asm/xen/hypervisor.h> #include <asm/xen/hypercall.h> @@ -57,6 +58,12 @@ static int __init xen_guest_init(void) } xen_domain_type = XEN_HVM_DOMAIN; + xen_setup_features(); + if (xen_feature(XENFEAT_dom0)) + xen_start_info->flags |= SIF_INITDOMAIN|SIF_PRIVILEGED; + else + xen_start_info->flags &= ~(SIF_INITDOMAIN|SIF_PRIVILEGED); + if (!shared_info_page) shared_info_page = (struct shared_info *) get_zeroed_page(GFP_KERNEL); diff --git a/include/xen/interface/features.h b/include/xen/interface/features.h index b6ca39a..131a6cc 100644 --- a/include/xen/interface/features.h +++ b/include/xen/interface/features.h @@ -50,6 +50,9 @@ /* x86: pirq can be used by HVM guests */ #define XENFEAT_hvm_pirqs 10 +/* operation as Dom0 is supported */ +#define XENFEAT_dom0 11 + #define XENFEAT_NR_SUBMAPS 1 #endif /* __XEN_PUBLIC_FEATURES_H__ */
Use Xen features to figure out if we are privileged. XENFEAT_dom0 was introduced by 23735 in xen-unstable.hg. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> --- arch/arm/xen/enlighten.c | 7 +++++++ include/xen/interface/features.h | 3 +++ 2 files changed, 10 insertions(+), 0 deletions(-)