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mem_protect: Add mem_protect API

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This patch adds the generic code that links the psci smc handler
with the platform function that implements the mem_protect and
mem_check_range functionalities. These functions are  optional
APIs added in PSCI v1.1 (ARM DEN022D).

Change-Id: I3bac1307a5ce2c7a196ace76db8317e8d8c8bb3f
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
This commit is contained in:
Roberto Vargas 2017-08-03 08:16:16 +01:00
parent df312c5a2b
commit d4c596be87
6 changed files with 63 additions and 0 deletions
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6
include/lib/psci/psci.h
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@ -65,6 +65,9 @@
#define PSCI_STAT_RESIDENCY_AARCH64 U(0xc4000010)
#define PSCI_STAT_COUNT_AARCH32 U(0x84000011)
#define PSCI_STAT_COUNT_AARCH64 U(0xc4000011)
#define PSCI_MEM_PROTECT U(0x84000013)
#define PSCI_MEM_CHK_RANGE_AARCH32 U(0x84000014)
#define PSCI_MEM_CHK_RANGE_AARCH64 U(0xc4000014)
/* Macro to help build the psci capabilities bitfield */
#define define_psci_cap(x) (U(1) << (x & U(0x1f)))
@ -288,6 +291,9 @@ typedef struct plat_psci_ops {
unsigned int power_state,
psci_power_state_t *output_state);
int (*get_node_hw_state)(u_register_t mpidr, unsigned int power_level);
int (*mem_protect_chk)(uintptr_t base, u_register_t length);
int (*read_mem_protect)(int *val);
int (*write_mem_protect)(int val);
} plat_psci_ops_t;
/*******************************************************************************