This series makes it so that the idle domain is started privileged under the default policy, which the SILO policy inherits, and under the flask policy. It then introduces a new one-way XSM hook, xsm_transition_running, that is hooked by an XSM policy to transition the idle domain to its running privilege level.
Changes in v5: - dropped setting is_privileged in flask_set_system_active() - added err code returned by xsm_set_system_active() to panic message Changes in v4: - reworded patch 1 commit messaged - fixed whitespace to coding style - fixed comment to coding style Changes in v3: - renamed *_transition_running() to *_set_system_active() - changed the XSM hook set_system_active() from void to int return - added ASSERT check for the expected privilege level each XSM policy expected - replaced a check against is_privileged in each arch with checking the return value from the call to xsm_set_system_active() Changes in v2: - renamed flask_domain_runtime_security() to flask_transition_running() - added the missed assignment of self_sid Daniel P. Smith (2): xsm: create idle domain privileged and demote after setup flask: implement xsm_set_system_active tools/flask/policy/modules/xen.if | 6 ++++++ tools/flask/policy/modules/xen.te | 1 + tools/flask/policy/policy/initial_sids | 1 + xen/arch/arm/setup.c | 4 ++++ xen/arch/x86/setup.c | 5 +++++ xen/common/sched/core.c | 7 ++++++- xen/include/xsm/dummy.h | 17 +++++++++++++++++ xen/include/xsm/xsm.h | 6 ++++++ xen/xsm/dummy.c | 1 + xen/xsm/flask/hooks.c | 22 +++++++++++++++++++++- xen/xsm/flask/policy/initial_sids | 1 + 11 files changed, 69 insertions(+), 2 deletions(-) -- 2.20.1
