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reset2: Add PSCI system_reset2 function

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This patch implements PSCI_SYSTEM_RESET2 API as defined in PSCI
v1.1 specification. The specification allows architectural and
vendor-specific resets via this API. In the current specification,
there is only one architectural reset, the warm reset. This reset is
intended to provide a fast reboot path that guarantees not to reset
system main memory.

Change-Id: I057bb81a60cd0fe56465dbb5791d8e1cca025bd3
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
This commit is contained in:
Roberto Vargas 2017-07-26 09:23:09 +01:00
parent 4d415c11c4
commit 36a8f8fd47
5 changed files with 54 additions and 1 deletions
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7
lib/psci/psci_main.c
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@ -414,6 +414,10 @@ u_register_t psci_smc_handler(uint32_t smc_fid,
case PSCI_MEM_CHK_RANGE_AARCH32:
return psci_mem_chk_range(x1, x2);
case PSCI_SYSTEM_RESET2_AARCH32:
/* We should never return from psci_system_reset2() */
return psci_system_reset2(x1, x2);
default:
break;
}
@ -453,6 +457,9 @@ u_register_t psci_smc_handler(uint32_t smc_fid,
case PSCI_MEM_CHK_RANGE_AARCH64:
return psci_mem_chk_range(x1, x2);
case PSCI_SYSTEM_RESET2_AARCH64:
/* We should never return from psci_system_reset2() */
return psci_system_reset2(x1, x2);
default:
break;