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authorAntonio Nino Diaz <antonio.ninodiaz@arm.com>2017-10-24 10:07:35 +0100
committerAntonio Nino Diaz <antonio.ninodiaz@arm.com>2017-11-08 18:05:14 +0000
commit2fccb228045696b98f83b1d865bac3c65d96b980 (patch)
tree4c3a4b67406989e65611a103a7adaf233fed4f2e /include/plat/common/platform.h
parentad02a7596f73ea9f07ebc9e04970ab7e9961c868 (diff)
downloadtrusted-firmware-a-2fccb228045696b98f83b1d865bac3c65d96b980.tar.gz
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>
Diffstat (limited to 'include/plat/common/platform.h')
-rw-r--r--include/plat/common/platform.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/plat/common/platform.h b/include/plat/common/platform.h
index e2bfa50505..068d7aab21 100644
--- a/include/plat/common/platform.h
+++ b/include/plat/common/platform.h
@@ -23,6 +23,8 @@ struct bl31_params;
struct image_desc;
struct bl_load_info;
struct bl_params;
+struct mmap_region;
+struct secure_partition_boot_info;
/*******************************************************************************
* plat_get_rotpk_info() flags
@@ -293,6 +295,13 @@ int plat_set_nv_ctr(void *cookie, unsigned int nv_ctr);
int plat_set_nv_ctr2(void *cookie, const struct auth_img_desc_s *img_desc,
unsigned int nv_ctr);
+/*******************************************************************************
+ * Secure Partitions functions
+ ******************************************************************************/
+const struct mmap_region *plat_get_secure_partition_mmap(void *cookie);
+const struct secure_partition_boot_info *plat_get_secure_partition_boot_info(
+ void *cookie);
+
#if LOAD_IMAGE_V2
/*******************************************************************************
* Mandatory BL image load functions(may be overridden).