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ARMv8: Enable all asynchronous abort exceptions taken to EL3

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Allow EL3 to handle all the External Abort and SError interrupt
exception occur in all exception levels.

Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com>
This commit is contained in:
Chee Hong Ang 2018-08-20 10:57:34 -07:00 committed by Tom Rini
parent f1cd696160
commit a7aab5bcb5
2 changed files with 5 additions and 0 deletions
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4
arch/arm/include/asm/macro.h
View File

@ -193,6 +193,10 @@ lr .req x30
SCR_EL3_SMD_DIS | SCR_EL3_RES1 |\ SCR_EL3_SMD_DIS | SCR_EL3_RES1 |\
SCR_EL3_NS_EN) SCR_EL3_NS_EN)
#endif #endif
#ifdef CONFIG_ARMV8_EA_EL3_FIRST
orr \tmp, \tmp, #SCR_EL3_EA_EN
#endif
msr scr_el3, \tmp msr scr_el3, \tmp
/* Return to the EL2_SP2 mode from EL3 */ /* Return to the EL2_SP2 mode from EL3 */

1
arch/arm/include/asm/system.h
View File

@ -29,6 +29,7 @@
#define SCR_EL3_HCE_EN (1 << 8) /* Hypervisor Call enable */ #define SCR_EL3_HCE_EN (1 << 8) /* Hypervisor Call enable */
#define SCR_EL3_SMD_DIS (1 << 7) /* Secure Monitor Call disable */ #define SCR_EL3_SMD_DIS (1 << 7) /* Secure Monitor Call disable */
#define SCR_EL3_RES1 (3 << 4) /* Reserved, RES1 */ #define SCR_EL3_RES1 (3 << 4) /* Reserved, RES1 */
#define SCR_EL3_EA_EN (1 << 3) /* External aborts taken to EL3 */
#define SCR_EL3_NS_EN (1 << 0) /* EL0 and EL1 in Non-scure state */ #define SCR_EL3_NS_EN (1 << 0) /* EL0 and EL1 in Non-scure state */
/* /*