diff options
| author | Nishant Sharma <nishant.sharma@arm.com> | 2022-03-26 00:34:05 +0000 |
|---|---|---|
| committer | Nishant Sharma <nishant.sharma@arm.com> | 2023-10-12 11:40:54 +0100 |
| commit | f45893426546703d9e21970889e6333ca30c0dd7 (patch) | |
| tree | 0b06a716610de85da9c1b70aed94601d499d3cbb /plat/arm/board | |
| parent | 549bc04f148f3b42ea0808b9ab0794a48d67007d (diff) | |
feat(rdn2): introduce accessor function to obtain datastore
In order to provide the EL3 SPMC a sufficient datastore to
record memory descriptor, introduce an accessor function
so that the backing memory can be allocated in a platform
defined manner to accommodate memory constraints and
desired usecases.
Signed-off-by: Nishant Sharma <nishant.sharma@arm.com>
Change-Id: If5842e79c2ad22ccc17362b114f47d9900d82f7e
Diffstat (limited to 'plat/arm/board')
| -rw-r--r-- | plat/arm/board/rdn2/rdn2_plat.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/plat/arm/board/rdn2/rdn2_plat.c b/plat/arm/board/rdn2/rdn2_plat.c index e8a967e00..f044558d8 100644 --- a/plat/arm/board/rdn2/rdn2_plat.c +++ b/plat/arm/board/rdn2/rdn2_plat.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2020-2021, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2020-2023, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -141,3 +141,17 @@ void bl31_platform_setup(void) #endif } #endif /* IMAGE_BL31 */ + +#if SPMC_AT_EL3 + +#define DATASTORE_SIZE 1024 + +__section("arm_el3_tzc_dram") uint8_t plat_spmc_shmem_datastore[DATASTORE_SIZE]; + +int plat_spmc_shmem_datastore_get(uint8_t **datastore, size_t *size) +{ + *datastore = plat_spmc_shmem_datastore; + *size = DATASTORE_SIZE; + return 0; +} +#endif |