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spm-mm: Refactor spm_svc.h and its contents 

Change-Id: I91c192924433226b54d33e57d56d146c1c6df81b
Signed-off-by: Paul Beesley <paul.beesley@arm.com>
This commit is contained in:
Paul Beesley 2019-10-15 12:51:55 +00:00 committed by Manish Pandey
parent aeaa225cbe
commit 0bf9f567a7
7 changed files with 156 additions and 149 deletions
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41
docs/components/secure-partition-manager-design.rst
View File

@ -308,8 +308,8 @@ allows the Secure Partition to:
Miscellaneous interfaces
------------------------
``SPM_VERSION_AARCH32``
^^^^^^^^^^^^^^^^^^^^^^^
``SPM_MM_VERSION_AARCH32``
^^^^^^^^^^^^^^^^^^^^^^^^^^
- Description
@ -369,7 +369,7 @@ Secure Partition Initialisation
The SPM is responsible for initialising the architectural execution context to
enable initialisation of a service in S-EL0. The responsibilities of the SPM are
listed below. At the end of initialisation, the partition issues a
``SP_EVENT_COMPLETE_AARCH64`` call (described later) to signal readiness for
``MM_SP_EVENT_COMPLETE_AARCH64`` call (described later) to signal readiness for
handling requests for services implemented by the Secure Partition. The
initialisation event is executed as a Fast Call.
@ -488,12 +488,12 @@ Runtime Event Delegation
The SPM receives requests for Secure Partition services through a synchronous
invocation (i.e. a SMC from the Non-secure world). These requests are delegated
to the partition by programming a return from the last
``SP_EVENT_COMPLETE_AARCH64`` call received from the partition. The last call
``MM_SP_EVENT_COMPLETE_AARCH64`` call received from the partition. The last call
was made to signal either completion of Secure Partition initialisation or
completion of a partition service request.
``SP_EVENT_COMPLETE_AARCH64``
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
``MM_SP_EVENT_COMPLETE_AARCH64``
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- Description
@ -569,7 +569,7 @@ completion of a partition service request.
- Caller responsibilities
A Secure Partition must only call ``SP_EVENT_COMPLETE_AARCH64`` to signal
A Secure Partition must only call ``MM_SP_EVENT_COMPLETE_AARCH64`` to signal
completion of a request that was delegated to it by the SPM.
- Callee responsibilities
@ -613,18 +613,19 @@ data and code) will be known only when the file is loaded into memory.
In this case, the Secure Partition needs a way to change the access permissions
of its memory regions. The SPM provides this feature through the
``SP_MEMORY_ATTRIBUTES_SET_AARCH64`` SVC interface. This interface is available
to the Secure Partition during a specific time window: from the first entry into
the Secure Partition up to the first ``SP_EVENT_COMPLETE`` call that signals the
Secure Partition has finished its initialisation. Once the initialisation is
complete, the SPM does not allow changes to the memory attributes.
``MM_SP_MEMORY_ATTRIBUTES_SET_AARCH64`` SVC interface. This interface is
available to the Secure Partition during a specific time window: from the first
entry into the Secure Partition up to the first ``SP_EVENT_COMPLETE`` call that
signals the Secure Partition has finished its initialisation. Once the
initialisation is complete, the SPM does not allow changes to the memory
attributes.
This section describes the standard SVC interface that is implemented by the SPM
to determine and change permission attributes of memory regions that belong to a
Secure Partition.
``SP_MEMORY_ATTRIBUTES_GET_AARCH64``
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
``MM_SP_MEMORY_ATTRIBUTES_GET_AARCH64``
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- Description
@ -673,7 +674,7 @@ Secure Partition.
- ``NOT_SUPPORTED`` : The SPM does not support retrieval of attributes of
any memory page that is accessible by the Secure Partition, or the
function was called from the Non-secure world. Also returned if it is
used after ``SP_EVENT_COMPLETE_AARCH64``.
used after ``MM_SP_EVENT_COMPLETE_AARCH64``.
See `Error Codes`_ for integer values that are associated with each return
code.
@ -696,8 +697,8 @@ Secure Partition.
The SPM must not return the memory access controls for a page of memory that
is not accessible from a Secure Partition.
``SP_MEMORY_ATTRIBUTES_SET_AARCH64``
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
``MM_SP_MEMORY_ATTRIBUTES_SET_AARCH64``
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- Description
@ -762,7 +763,7 @@ Secure Partition.
- ``NOT_SUPPORTED``: The SPM does not permit change of attributes of any
memory region that is accessible by the Secure Partition. Function was
called from the Non-secure world. Also returned if it is used after
``SP_EVENT_COMPLETE_AARCH64``.
``MM_SP_EVENT_COMPLETE_AARCH64``.
See `Error Codes`_ for integer values that are associated with each return
code.
@ -776,8 +777,8 @@ Secure Partition.
currently supported.
This function is only available at boot time. This interface is revoked after
the Secure Partition sends the first ``SP_EVENT_COMPLETE_AARCH64`` to signal
that it is initialised and ready to receive run-time requests.
the Secure Partition sends the first ``MM_SP_EVENT_COMPLETE_AARCH64`` to
signal that it is initialised and ready to receive run-time requests.
- Caller responsibilities

88
include/services/spm_mm_svc.h Normal file
View File

@ -0,0 +1,88 @@
/*
* Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef SPM_MM_SVC_H
#define SPM_MM_SVC_H
#include <lib/utils_def.h>
#define SPM_MM_VERSION_MAJOR U(0)
#define SPM_MM_VERSION_MAJOR_SHIFT 16
#define SPM_MM_VERSION_MAJOR_MASK U(0x7FFF)
#define SPM_MM_VERSION_MINOR U(1)
#define SPM_MM_VERSION_MINOR_SHIFT 0
#define SPM_MM_VERSION_MINOR_MASK U(0xFFFF)
#define SPM_MM_VERSION_FORM(major, minor) ((major << \
SPM_MM_VERSION_MAJOR_SHIFT) | \
(minor))
#define SPM_MM_VERSION_COMPILED SPM_MM_VERSION_FORM(SPM_MM_VERSION_MAJOR, \
SPM_MM_VERSION_MINOR)
/* These macros are used to identify SPM-MM calls using the SMC function ID */
#define SPM_MM_FID_MASK U(0xffff)
#define SPM_MM_FID_MIN_VALUE U(0x40)
#define SPM_MM_FID_MAX_VALUE U(0x7f)
#define is_spm_mm_fid(_fid) \
((((_fid) & SPM_MM_FID_MASK) >= SPM_MM_FID_MIN_VALUE) && \
(((_fid) & SPM_MM_FID_MASK) <= SPM_MM_FID_MAX_VALUE))
/*
* SMC IDs defined for accessing services implemented by the Secure Partition
* Manager from the Secure Partition(s). These services enable a partition to
* handle delegated events and request privileged operations from the manager.
* They occupy the range 0x60-0x7f.
*/
#define SPM_MM_VERSION_AARCH32 U(0x84000060)
#define MM_SP_EVENT_COMPLETE_AARCH64 U(0xC4000061)
#define MM_SP_MEMORY_ATTRIBUTES_GET_AARCH64 U(0xC4000064)
#define MM_SP_MEMORY_ATTRIBUTES_SET_AARCH64 U(0xC4000065)
/*
* Macros used by MM_SP_MEMORY_ATTRIBUTES_SET_AARCH64.
*/
#define MM_SP_MEMORY_ATTRIBUTES_ACCESS_NOACCESS U(0)
#define MM_SP_MEMORY_ATTRIBUTES_ACCESS_RW U(1)
/* Value U(2) is reserved. */
#define MM_SP_MEMORY_ATTRIBUTES_ACCESS_RO U(3)
#define MM_SP_MEMORY_ATTRIBUTES_ACCESS_MASK U(3)
#define MM_SP_MEMORY_ATTRIBUTES_ACCESS_SHIFT 0
#define MM_SP_MEMORY_ATTRIBUTES_EXEC (U(0) << 2)
#define MM_SP_MEMORY_ATTRIBUTES_NON_EXEC (U(1) << 2)
/* SPM error codes. */
#define SPM_MM_SUCCESS 0
#define SPM_MM_NOT_SUPPORTED -1
#define SPM_MM_INVALID_PARAMETER -2
#define SPM_MM_DENIED -3
#define SPM_MM_NO_MEMORY -5
#ifndef __ASSEMBLER__
#include <stdint.h>
int32_t spm_mm_setup(void);
uint64_t spm_mm_smc_handler(uint32_t smc_fid,
uint64_t x1,
uint64_t x2,
uint64_t x3,
uint64_t x4,
void *cookie,
void *handle,
uint64_t flags);
/* Helper to enter a secure partition */
uint64_t spm_mm_sp_call(uint32_t smc_fid,
uint64_t x1,
uint64_t x2,
uint64_t x3);
#endif /* __ASSEMBLER__ */
#endif /* SPM_MM_SVC_H */

82
include/services/spm_svc.h
View File

@ -1,82 +0,0 @@
/*
* Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef SPM_SVC_H
#define SPM_SVC_H
#include <lib/utils_def.h>
#define SPM_VERSION_MAJOR U(0)
#define SPM_VERSION_MAJOR_SHIFT 16
#define SPM_VERSION_MAJOR_MASK U(0x7FFF)
#define SPM_VERSION_MINOR U(1)
#define SPM_VERSION_MINOR_SHIFT 0
#define SPM_VERSION_MINOR_MASK U(0xFFFF)
#define SPM_VERSION_FORM(major, minor) ((major << SPM_VERSION_MAJOR_SHIFT) | (minor))
#define SPM_VERSION_COMPILED SPM_VERSION_FORM(SPM_VERSION_MAJOR, SPM_VERSION_MINOR)
/* The macros below are used to identify SPM calls from the SMC function ID */
#define SPM_FID_MASK U(0xffff)
#define SPM_FID_MIN_VALUE U(0x40)
#define SPM_FID_MAX_VALUE U(0x7f)
#define is_spm_fid(_fid) \
((((_fid) & SPM_FID_MASK) >= SPM_FID_MIN_VALUE) && \
(((_fid) & SPM_FID_MASK) <= SPM_FID_MAX_VALUE))
/*
* SMC IDs defined for accessing services implemented by the Secure Partition
* Manager from the Secure Partition(s). These services enable a partition to
* handle delegated events and request privileged operations from the manager.
* They occupy the range 0x60-0x7f.
*/
#define SPM_VERSION_AARCH32 U(0x84000060)
#define SP_EVENT_COMPLETE_AARCH64 U(0xC4000061)
#define SP_MEMORY_ATTRIBUTES_GET_AARCH64 U(0xC4000064)
#define SP_MEMORY_ATTRIBUTES_SET_AARCH64 U(0xC4000065)
/*
* Macros used by SP_MEMORY_ATTRIBUTES_SET_AARCH64.
*/
#define SP_MEMORY_ATTRIBUTES_ACCESS_NOACCESS U(0)
#define SP_MEMORY_ATTRIBUTES_ACCESS_RW U(1)
/* Value U(2) is reserved. */
#define SP_MEMORY_ATTRIBUTES_ACCESS_RO U(3)
#define SP_MEMORY_ATTRIBUTES_ACCESS_MASK U(3)
#define SP_MEMORY_ATTRIBUTES_ACCESS_SHIFT 0
#define SP_MEMORY_ATTRIBUTES_EXEC (U(0) << 2)
#define SP_MEMORY_ATTRIBUTES_NON_EXEC (U(1) << 2)
/* SPM error codes. */
#define SPM_SUCCESS 0
#define SPM_NOT_SUPPORTED -1
#define SPM_INVALID_PARAMETER -2
#define SPM_DENIED -3
#define SPM_NO_MEMORY -5
#ifndef __ASSEMBLER__
#include <stdint.h>
int32_t spm_setup(void);
uint64_t spm_smc_handler(uint32_t smc_fid,
uint64_t x1,
uint64_t x2,
uint64_t x3,
uint64_t x4,
void *cookie,
void *handle,
uint64_t flags);
/* Helper to enter a Secure Partition */
uint64_t spm_sp_call(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3);
#endif /* __ASSEMBLER__ */
#endif /* SPM_SVC_H */

10
plat/arm/css/sgi/sgi_ras.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -14,7 +14,7 @@
#include <plat/common/platform.h>
#include <services/mm_svc.h>
#include <services/sdei.h>
#include <services/spm_svc.h>
#include <services/spm_mm_svc.h>
#include <sgi_ras.h>
@ -142,11 +142,11 @@ static int sgi_ras_intr_handler(const struct err_record_info *err_rec,
sizeof(ras_map->ras_ev_num));
header->message_len = 4;
spm_sp_call(MM_COMMUNICATE_AARCH64, (uint64_t)header, 0,
plat_my_core_pos());
spm_mm_sp_call(MM_COMMUNICATE_AARCH64, (uint64_t)header, 0,
plat_my_core_pos());
/*
* Do an EOI of the RAS interuupt. This allows the
* Do an EOI of the RAS interrupt. This allows the
* sdei event to be dispatched at the SDEI event's
* priority.
*/

44
services/std_svc/spm_mm/spm_main.c
View File

@ -20,7 +20,7 @@
#include <plat/common/platform.h>
#include <services/mm_svc.h>
#include <services/spm_mm_partition.h>
#include <services/spm_svc.h>
#include <services/spm_mm_svc.h>
#include <smccc_helpers.h>
#include "spm_private.h"
@ -157,7 +157,7 @@ static int32_t spm_init(void)
/*******************************************************************************
* Initialize contexts of all Secure Partitions.
******************************************************************************/
int32_t spm_setup(void)
int32_t spm_mm_setup(void)
{
sp_context_t *ctx;
@ -185,7 +185,7 @@ int32_t spm_setup(void)
/*******************************************************************************
* Function to perform a call to a Secure Partition.
******************************************************************************/
uint64_t spm_sp_call(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3)
uint64_t spm_mm_sp_call(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3)
{
uint64_t rc;
sp_context_t *sp_ptr = &sp_ctx;
@ -223,12 +223,12 @@ static uint64_t mm_communicate(uint32_t smc_fid, uint64_t mm_cookie,
/* Cookie. Reserved for future use. It must be zero. */
if (mm_cookie != 0U) {
ERROR("MM_COMMUNICATE: cookie is not zero\n");
SMC_RET1(handle, SPM_INVALID_PARAMETER);
SMC_RET1(handle, SPM_MM_INVALID_PARAMETER);
}
if (comm_buffer_address == 0U) {
ERROR("MM_COMMUNICATE: comm_buffer_address is zero\n");
SMC_RET1(handle, SPM_INVALID_PARAMETER);
SMC_RET1(handle, SPM_MM_INVALID_PARAMETER);
}
if (comm_size_address != 0U) {
@ -251,8 +251,8 @@ static uint64_t mm_communicate(uint32_t smc_fid, uint64_t mm_cookie,
/* Save the Normal world context */
cm_el1_sysregs_context_save(NON_SECURE);
rc = spm_sp_call(smc_fid, comm_buffer_address, comm_size_address,
plat_my_core_pos());
rc = spm_mm_sp_call(smc_fid, comm_buffer_address, comm_size_address,
plat_my_core_pos());
/* Restore non-secure state */
cm_el1_sysregs_context_restore(NON_SECURE);
@ -270,7 +270,7 @@ static uint64_t mm_communicate(uint32_t smc_fid, uint64_t mm_cookie,
/*******************************************************************************
* Secure Partition Manager SMC handler.
******************************************************************************/
uint64_t spm_smc_handler(uint32_t smc_fid,
uint64_t spm_mm_smc_handler(uint32_t smc_fid,
uint64_t x1,
uint64_t x2,
uint64_t x3,
@ -295,29 +295,29 @@ uint64_t spm_smc_handler(uint32_t smc_fid,
switch (smc_fid) {
case SPM_VERSION_AARCH32:
SMC_RET1(handle, SPM_VERSION_COMPILED);
case SPM_MM_VERSION_AARCH32:
SMC_RET1(handle, SPM_MM_VERSION_COMPILED);
case SP_EVENT_COMPLETE_AARCH64:
case MM_SP_EVENT_COMPLETE_AARCH64:
spm_sp_synchronous_exit(x1);
case SP_MEMORY_ATTRIBUTES_GET_AARCH64:
INFO("Received SP_MEMORY_ATTRIBUTES_GET_AARCH64 SMC\n");
case MM_SP_MEMORY_ATTRIBUTES_GET_AARCH64:
INFO("Received MM_SP_MEMORY_ATTRIBUTES_GET_AARCH64 SMC\n");
if (sp_ctx.state != SP_STATE_RESET) {
WARN("SP_MEMORY_ATTRIBUTES_GET_AARCH64 is available at boot time only\n");
SMC_RET1(handle, SPM_NOT_SUPPORTED);
WARN("MM_SP_MEMORY_ATTRIBUTES_GET_AARCH64 is available at boot time only\n");
SMC_RET1(handle, SPM_MM_NOT_SUPPORTED);
}
SMC_RET1(handle,
spm_memory_attributes_get_smc_handler(
&sp_ctx, x1));
case SP_MEMORY_ATTRIBUTES_SET_AARCH64:
INFO("Received SP_MEMORY_ATTRIBUTES_SET_AARCH64 SMC\n");
case MM_SP_MEMORY_ATTRIBUTES_SET_AARCH64:
INFO("Received MM_SP_MEMORY_ATTRIBUTES_SET_AARCH64 SMC\n");
if (sp_ctx.state != SP_STATE_RESET) {
WARN("SP_MEMORY_ATTRIBUTES_SET_AARCH64 is available at boot time only\n");
SMC_RET1(handle, SPM_NOT_SUPPORTED);
WARN("MM_SP_MEMORY_ATTRIBUTES_SET_AARCH64 is available at boot time only\n");
SMC_RET1(handle, SPM_MM_NOT_SUPPORTED);
}
SMC_RET1(handle,
spm_memory_attributes_set_smc_handler(
@ -340,10 +340,10 @@ uint64_t spm_smc_handler(uint32_t smc_fid,
case MM_COMMUNICATE_AARCH64:
return mm_communicate(smc_fid, x1, x2, x3, handle);
case SP_MEMORY_ATTRIBUTES_GET_AARCH64:
case SP_MEMORY_ATTRIBUTES_SET_AARCH64:
case MM_SP_MEMORY_ATTRIBUTES_GET_AARCH64:
case MM_SP_MEMORY_ATTRIBUTES_SET_AARCH64:
/* SMC interfaces reserved for secure callers. */
SMC_RET1(handle, SPM_NOT_SUPPORTED);
SMC_RET1(handle, SPM_MM_NOT_SUPPORTED);
default:
break;

30
services/std_svc/spm_mm/spm_xlat.c
View File

@ -12,7 +12,7 @@
#include <platform_def.h>
#include <plat/common/platform.h>
#include <services/spm_mm_partition.h>
#include <services/spm_svc.h>
#include <services/spm_mm_svc.h>
#include "spm_private.h"
#include "spm_shim_private.h"
@ -50,21 +50,21 @@ static unsigned int smc_attr_to_mmap_attr(unsigned int attributes)
{
unsigned int tf_attr = 0U;
unsigned int access = (attributes & SP_MEMORY_ATTRIBUTES_ACCESS_MASK)
>> SP_MEMORY_ATTRIBUTES_ACCESS_SHIFT;
unsigned int access = (attributes & MM_SP_MEMORY_ATTRIBUTES_ACCESS_MASK)
>> MM_SP_MEMORY_ATTRIBUTES_ACCESS_SHIFT;
if (access == SP_MEMORY_ATTRIBUTES_ACCESS_RW) {
if (access == MM_SP_MEMORY_ATTRIBUTES_ACCESS_RW) {
tf_attr |= MT_RW | MT_USER;
} else if (access == SP_MEMORY_ATTRIBUTES_ACCESS_RO) {
} else if (access == MM_SP_MEMORY_ATTRIBUTES_ACCESS_RO) {
tf_attr |= MT_RO | MT_USER;
} else {
/* Other values are reserved. */
assert(access == SP_MEMORY_ATTRIBUTES_ACCESS_NOACCESS);
assert(access == MM_SP_MEMORY_ATTRIBUTES_ACCESS_NOACCESS);
/* The only requirement is that there's no access from EL0 */
tf_attr |= MT_RO | MT_PRIVILEGED;
}
if ((attributes & SP_MEMORY_ATTRIBUTES_NON_EXEC) == 0) {
if ((attributes & MM_SP_MEMORY_ATTRIBUTES_NON_EXEC) == 0) {
tf_attr |= MT_EXECUTE;
} else {
tf_attr |= MT_EXECUTE_NEVER;
@ -85,21 +85,21 @@ static unsigned int smc_mmap_to_smc_attr(unsigned int attr)
if ((attr & MT_USER) == 0) {
/* No access from EL0. */
data_access = SP_MEMORY_ATTRIBUTES_ACCESS_NOACCESS;
data_access = MM_SP_MEMORY_ATTRIBUTES_ACCESS_NOACCESS;
} else {
if ((attr & MT_RW) != 0) {
assert(MT_TYPE(attr) != MT_DEVICE);
data_access = SP_MEMORY_ATTRIBUTES_ACCESS_RW;
data_access = MM_SP_MEMORY_ATTRIBUTES_ACCESS_RW;
} else {
data_access = SP_MEMORY_ATTRIBUTES_ACCESS_RO;
data_access = MM_SP_MEMORY_ATTRIBUTES_ACCESS_RO;
}
}
smc_attr |= (data_access & SP_MEMORY_ATTRIBUTES_ACCESS_MASK)
<< SP_MEMORY_ATTRIBUTES_ACCESS_SHIFT;
smc_attr |= (data_access & MM_SP_MEMORY_ATTRIBUTES_ACCESS_MASK)
<< MM_SP_MEMORY_ATTRIBUTES_ACCESS_SHIFT;
if ((attr & MT_EXECUTE_NEVER) != 0U) {
smc_attr |= SP_MEMORY_ATTRIBUTES_NON_EXEC;
smc_attr |= MM_SP_MEMORY_ATTRIBUTES_NON_EXEC;
}
return smc_attr;
@ -123,7 +123,7 @@ int32_t spm_memory_attributes_get_smc_handler(sp_context_t *sp_ctx,
if (rc == 0) {
return (int32_t) smc_mmap_to_smc_attr(attributes);
} else {
return SPM_INVALID_PARAMETER;
return SPM_MM_INVALID_PARAMETER;
}
}
@ -151,5 +151,5 @@ int spm_memory_attributes_set_smc_handler(sp_context_t *sp_ctx,
/* Convert error codes of xlat_change_mem_attributes_ctx() into SPM. */
assert((ret == 0) || (ret == -EINVAL));
return (ret == 0) ? SPM_SUCCESS : SPM_INVALID_PARAMETER;
return (ret == 0) ? SPM_MM_SUCCESS : SPM_MM_INVALID_PARAMETER;
}

10
services/std_svc/std_svc_setup.c
View File

@ -14,7 +14,7 @@
#include <lib/psci/psci.h>
#include <lib/runtime_instr.h>
#include <services/sdei.h>
#include <services/spm_svc.h>
#include <services/spm_mm_svc.h>
#include <services/std_svc.h>
#include <smccc_helpers.h>
#include <tools_share/uuid.h>
@ -46,7 +46,7 @@ static int32_t std_svc_setup(void)
}
#if SPM_MM
if (spm_setup() != 0) {
if (spm_mm_setup() != 0) {
ret = 1;
}
#endif
@ -108,9 +108,9 @@ static uintptr_t std_svc_smc_handler(uint32_t smc_fid,
* Dispatch SPM calls to SPM SMC handler and return its return
* value
*/
if (is_spm_fid(smc_fid)) {
return spm_smc_handler(smc_fid, x1, x2, x3, x4, cookie,
handle, flags);
if (is_spm_mm_fid(smc_fid)) {
return spm_mm_smc_handler(smc_fid, x1, x2, x3, x4, cookie,
handle, flags);
}
#endif