OP-TEE when compiled with NS-Virtualization support expects NS-Hypervisor to notify events such as guest creation and destruction through SMCs.
This change adds two macros OPTEE_SMC_VM_CREATED and OPTEE_SMC_VM_DESTROYED.
Signed-off-by: Yuvraj Sakshith yuvraj.kernel@gmail.com --- drivers/tee/optee/optee_smc.h | 53 +++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+)
diff --git a/drivers/tee/optee/optee_smc.h b/drivers/tee/optee/optee_smc.h index 879426300821..988539b2407b 100644 --- a/drivers/tee/optee/optee_smc.h +++ b/drivers/tee/optee/optee_smc.h @@ -452,6 +452,59 @@ struct optee_smc_disable_shm_cache_result { /* See OPTEE_SMC_CALL_WITH_REGD_ARG above */ #define OPTEE_SMC_FUNCID_CALL_WITH_REGD_ARG 19
+/* + * Inform OP-TEE about a new virtual machine + * + * Hypervisor issues this call during virtual machine (guest) creation. + * OP-TEE records client id of new virtual machine and prepares + * to receive requests from it. This call is available only if OP-TEE + * was built with virtualization support. + * + * Call requests usage: + * a0 SMC Function ID, OPTEE_SMC_VM_CREATED + * a1 Hypervisor Client ID of newly created virtual machine + * a2-6 Not used + * a7 Hypervisor Client ID register. Must be 0, because only hypervisor + * can issue this call + * + * Normal return register usage: + * a0 OPTEE_SMC_RETURN_OK + * a1-7 Preserved + * + * Error return: + * a0 OPTEE_SMC_RETURN_ENOTAVAIL OP-TEE have no resources for + * another VM + * a1-7 Preserved + * + */ +#define OPTEE_SMC_FUNCID_VM_CREATED 13 +#define OPTEE_SMC_VM_CREATED \ + OPTEE_SMC_FAST_CALL_VAL(OPTEE_SMC_FUNCID_VM_CREATED) + +/* + * Inform OP-TEE about shutdown of a virtual machine + * + * Hypervisor issues this call during virtual machine (guest) destruction. + * OP-TEE will clean up all resources associated with this VM. This call is + * available only if OP-TEE was built with virtualization support. + * + * Call requests usage: + * a0 SMC Function ID, OPTEE_SMC_VM_DESTROYED + * a1 Hypervisor Client ID of virtual machine being shut down + * a2-6 Not used + * a7 Hypervisor Client ID register. Must be 0, because only hypervisor + * can issue this call + * + * Normal return register usage: + * a0 OPTEE_SMC_RETURN_OK + * a1-7 Preserved + * + */ + +#define OPTEE_SMC_FUNCID_VM_DESTROYED 14 +#define OPTEE_SMC_VM_DESTROYED \ + OPTEE_SMC_FAST_CALL_VAL(OPTEE_SMC_FUNCID_VM_DESTROYED) + /* * Resume from RPC (for example after processing a foreign interrupt) *