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fix(zynqmp): handle invalid entry point in cpu hotplug scenario

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Invalid addresses are from 2G-4G and also address where TF-A is.

Change-Id: Iedb817a2f9667b7d0b9a3ac03891a5b93295bf87
Signed-off-by: Maheedhar Bollapalli <maheedharsai.bollapalli@amd.com>
This commit is contained in:
Maheedhar Bollapalli 2025-01-08 04:18:35 +00:00
parent 8fb8b93984
commit df44616a12
2 changed files with 19 additions and 1 deletions
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7
plat/xilinx/zynqmp/include/platform_def.h
View file

@ -74,6 +74,12 @@
# define PLAT_ARM_NS_IMAGE_BASE U(PRELOADED_BL33_BASE)
#endif
/*******************************************************************************
* HIGH and LOW DDR MAX definitions.
******************************************************************************/
#define PLAT_DDR_LOWMEM_MAX U(0x80000000)
#define PLAT_DDR_HIGHMEM_MAX U(0x100000000)
/*******************************************************************************
* TSP specific defines.
******************************************************************************/
@ -87,7 +93,6 @@
* Platform specific page table and MMU setup constants
******************************************************************************/
#define XILINX_OF_BOARD_DTB_MAX_SIZE U(0x200000)
#define PLAT_DDR_LOWMEM_MAX U(0x80000000)
#define PLAT_OCM_BASE U(0xFFFC0000)
#define PLAT_OCM_LIMIT U(0xFFFFFFFF)

13
plat/xilinx/zynqmp/plat_psci.c
View file

@ -193,6 +193,18 @@ static void __dead2 zynqmp_system_reset(void)
}
}
static int32_t zynqmp_validate_ns_entrypoint(uint64_t ns_entrypoint)
{
int32_t ret = PSCI_E_SUCCESS;
if (((ns_entrypoint >= PLAT_DDR_LOWMEM_MAX) && (ns_entrypoint <= PLAT_DDR_HIGHMEM_MAX)) ||
((ns_entrypoint >= BL31_BASE) && (ns_entrypoint <= BL31_LIMIT))) {
ret = PSCI_E_INVALID_ADDRESS;
}
return ret;
}
static int32_t zynqmp_validate_power_state(uint32_t power_state,
psci_power_state_t *req_state)
{
@ -235,6 +247,7 @@ static const struct plat_psci_ops zynqmp_psci_ops = {
.pwr_domain_suspend_finish = zynqmp_pwr_domain_suspend_finish,
.system_off = zynqmp_system_off,
.system_reset = zynqmp_system_reset,
.validate_ns_entrypoint = zynqmp_validate_ns_entrypoint,
.validate_power_state = zynqmp_validate_power_state,
.get_sys_suspend_power_state = zynqmp_get_sys_suspend_power_state,
};