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feat(hikey960): add memory sharing hooks for SPMC_AT_EL3

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These allows a platform to do any System-MMU/IOMMU configuration
in line with FF-A memory sharing.

Change-Id: Id517759198421a32c5d16bf5bb99590275e77736
Signed-off-by: vallau01 <valentin.laurent@trustonic.com>
Signed-off-by: Lukas Hanel <lukas.hanel@trustonic.com>
This commit is contained in:
vallau01 2022-08-02 16:16:11 +02:00 • committed by Lukas Hanel
parent feebd4c7a8
commit 5f905a2498
1 changed files with 21 additions and 0 deletions
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21
plat/hisilicon/hikey960/hikey960_bl31_setup.c
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@ -22,6 +22,7 @@
#include <lib/mmio.h>
#include <lib/xlat_tables/xlat_tables_v2.h>
#include <plat/common/platform.h>
#include <services/el3_spmc_ffa_memory.h>
#include <hi3660.h>
#include <hisi_ipc.h>
@ -182,6 +183,26 @@ int plat_spmc_shmem_datastore_get(uint8_t **datastore, size_t *size)
*size = SPMC_SHARED_MEMORY_OBJ_SIZE;
return 0;
}
/*
* Add dummy implementations of memory management related platform hooks.
* These can be used to implement platform specific functionality to support
* a memory sharing/lending operation.
*
* Note: The hooks must be located as part of the initial share request and
* final reclaim to prevent order dependencies with operations that may take
* place in the normal world without visibility of the SPMC.
*/
int plat_spmc_shmem_begin(struct ffa_mtd *desc)
{
return 0;
}
int plat_spmc_shmem_reclaim(struct ffa_mtd *desc)
{
return 0;
}
#endif
void bl31_platform_setup(void)