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The hardware domain should have access to the command line. The hardware domain is at least semi-trusted - just allow it access to all the xen_version info. Signed-off-by: Jason Andryuk --- xen/include/xsm/dummy.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/xen/include/xsm/dummy.h b/xen/include/xsm/dummy.h index 4536ee5dad..9e6bc0ed12 100644 --- a/xen/include/xsm/dummy.h +++ b/xen/include/xsm/dummy.h @@ -859,6 +859,8 @@ static XSM_INLINE int cf_check xsm_xen_version(XSM_DEFA= ULT_ARG uint32_t op) /* These MUST always be accessible to any guest by default. */ return xsm_default_action(XSM_HOOK, current->domain, NULL); default: + if ( is_hardware_domain(current->domain) ) + return xsm_default_action(XSM_HW_PRIV, current->domain, NULL); return xsm_default_action(XSM_PRIV, current->domain, NULL); } } --=20 2.48.1