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| author | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2012-08-08 19:20:18 +0200 |
|---|---|---|
| committer | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2012-08-08 19:20:18 +0200 |
| commit | ef61ee0dc7ba0409dc0e8122de90d4e48d4c8669 (patch) | |
| tree | 69318ec779b0c71fbd8d7763b5ddb018b22b7673 | |
| parent | xen/arm: introduce CONFIG_XEN on ARM (diff) | |
| download | linux-ef61ee0dc7ba0409dc0e8122de90d4e48d4c8669.tar.xz linux-ef61ee0dc7ba0409dc0e8122de90d4e48d4c8669.zip | |
xen/arm: get privilege status
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>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
| -rw-r--r-- | arch/arm/xen/enlighten.c | 7 | ||||
| -rw-r--r-- | 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 6a0217d4e662..c2a47a724870 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> @@ -66,6 +67,12 @@ 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 b6ca39a069d8..131a6ccdba25 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__ */ |