diff options
Diffstat (limited to 'xen/include/xsm')
| -rw-r--r-- | xen/include/xsm/dummy.h | 24 | ||||
| -rw-r--r-- | xen/include/xsm/xsm.h | 6 |
2 files changed, 30 insertions, 0 deletions
diff --git a/xen/include/xsm/dummy.h b/xen/include/xsm/dummy.h index 1d138269f7..abbe28219b 100644 --- a/xen/include/xsm/dummy.h +++ b/xen/include/xsm/dummy.h @@ -727,3 +727,27 @@ static XSM_INLINE int xsm_pmu_op (XSM_DEFAULT_ARG struct domain *d, unsigned int } #endif /* CONFIG_X86 */ + +#include <public/version.h> +static XSM_INLINE int xsm_xen_version (XSM_DEFAULT_ARG uint32_t op) +{ + XSM_ASSERT_ACTION(XSM_OTHER); + switch ( op ) + { + case XENVER_version: + case XENVER_platform_parameters: + case XENVER_get_features: + /* These sub-ops ignore the permission checks and return data. */ + return 0; + case XENVER_extraversion: + case XENVER_compile_info: + case XENVER_capabilities: + case XENVER_changeset: + case XENVER_pagesize: + case XENVER_guest_handle: + /* These MUST always be accessible to any guest by default. */ + return xsm_default_action(XSM_HOOK, current->domain, NULL); + default: + return xsm_default_action(XSM_PRIV, current->domain, NULL); + } +} diff --git a/xen/include/xsm/xsm.h b/xen/include/xsm/xsm.h index 3afed70d75..5ecbee08e0 100644 --- a/xen/include/xsm/xsm.h +++ b/xen/include/xsm/xsm.h @@ -193,6 +193,7 @@ struct xsm_operations { int (*ioport_mapping) (struct domain *d, uint32_t s, uint32_t e, uint8_t allow); int (*pmu_op) (struct domain *d, unsigned int op); #endif + int (*xen_version) (uint32_t cmd); }; #ifdef CONFIG_XSM @@ -731,6 +732,11 @@ static inline int xsm_pmu_op (xsm_default_t def, struct domain *d, unsigned int #endif /* CONFIG_X86 */ +static inline int xsm_xen_version (xsm_default_t def, uint32_t op) +{ + return xsm_ops->xen_version(op); +} + #endif /* XSM_NO_WRAPPERS */ #ifdef CONFIG_MULTIBOOT |