arm-trusted-firmware/services/std_svc/spm/aarch64/spm_shim_exceptions.S

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SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
/*
* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch.h>
#include <asm_macros.S>
#include <bl_common.h>
#include <context.h>
/* -----------------------------------------------------------------------------
* Very simple stackless exception handlers used by the spm shim layer.
* -----------------------------------------------------------------------------
*/
.globl spm_shim_exceptions_ptr
vector_base spm_shim_exceptions_ptr, .spm_shim_exceptions
/* -----------------------------------------------------
* Current EL with SP0 : 0x0 - 0x200
* -----------------------------------------------------
*/
vector_entry SynchronousExceptionSP0, .spm_shim_exceptions
b .
end_vector_entry SynchronousExceptionSP0
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
vector_entry IrqSP0, .spm_shim_exceptions
b .
end_vector_entry IrqSP0
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
vector_entry FiqSP0, .spm_shim_exceptions
b .
end_vector_entry FiqSP0
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
vector_entry SErrorSP0, .spm_shim_exceptions
b .
end_vector_entry SErrorSP0
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
/* -----------------------------------------------------
* Current EL with SPx: 0x200 - 0x400
* -----------------------------------------------------
*/
vector_entry SynchronousExceptionSPx, .spm_shim_exceptions
b .
end_vector_entry SynchronousExceptionSPx
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
vector_entry IrqSPx, .spm_shim_exceptions
b .
end_vector_entry IrqSPx
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
vector_entry FiqSPx, .spm_shim_exceptions
b .
end_vector_entry FiqSPx
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
vector_entry SErrorSPx, .spm_shim_exceptions
b .
end_vector_entry SErrorSPx
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
/* -----------------------------------------------------
* Lower EL using AArch64 : 0x400 - 0x600. No exceptions
* are handled since secure_partition does not implement
* a lower EL
* -----------------------------------------------------
*/
vector_entry SynchronousExceptionA64, .spm_shim_exceptions
msr tpidr_el1, x30
mrs x30, esr_el1
ubfx x30, x30, #ESR_EC_SHIFT, #ESR_EC_LENGTH
cmp x30, #EC_AARCH64_SVC
b.eq do_smc
cmp x30, #EC_AARCH32_SVC
b.eq do_smc
cmp x30, #EC_AARCH64_SYS
b.eq handle_sys_trap
/* Fail in all the other cases */
b panic
/* ---------------------------------------------
* Tell SPM that we are done initialising
* ---------------------------------------------
*/
do_smc:
mrs x30, tpidr_el1
smc #0
eret
/* AArch64 system instructions trap are handled as a panic for now */
handle_sys_trap:
panic:
b panic
end_vector_entry SynchronousExceptionA64
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
vector_entry IrqA64, .spm_shim_exceptions
b .
end_vector_entry IrqA64
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
vector_entry FiqA64, .spm_shim_exceptions
b .
end_vector_entry FiqA64
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
vector_entry SErrorA64, .spm_shim_exceptions
b .
end_vector_entry SErrorA64
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
/* -----------------------------------------------------
* Lower EL using AArch32 : 0x600 - 0x800
* -----------------------------------------------------
*/
vector_entry SynchronousExceptionA32, .spm_shim_exceptions
b .
end_vector_entry SynchronousExceptionA32
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
vector_entry IrqA32, .spm_shim_exceptions
b .
end_vector_entry IrqA32
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
vector_entry FiqA32, .spm_shim_exceptions
b .
end_vector_entry FiqA32
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
vector_entry SErrorA32, .spm_shim_exceptions
b .
end_vector_entry SErrorA32