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When dropping to EL1 ensure we have written to all special registers by

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moving the instruction barrier to just before we drop exception level.

Sponsored by:	ABT Systems Ltd
This commit is contained in:
Andrew Turner 2015-09-07 10:13:14 +00:00
parent 32d321fa4a
commit f452c30169
1 changed files with 1 additions and 1 deletions
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2
sys/arm64/arm64/locore.S
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@ -246,11 +246,11 @@ drop_to_el1:
mrs x2, icc_sre_el2
orr x2, x2, #ICC_SRE_EL2_EN /* Enable access from insecure EL1 */
msr icc_sre_el2, x2
isb
2:
/* Set the address to return to our return address */
msr elr_el2, x30
isb
eret