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kern: swap tpidr_el1/cntv_cval_el0 as scratch vs exception stack

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Michael Scire 2021-04-07 08:36:03 -07:00 • committed by SciresM
parent 2f930c2d5f
commit c216f92a91
7 changed files with 34 additions and 28 deletions
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4
mesosphere/kernel/source/arch/arm64/init/start.s
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@ -227,9 +227,9 @@ _ZN3ams4kern4init16InvokeEntrypointEPKNS1_14KInitArgumentsE:
/* Ensure that the exception vectors are setup. */
bl _ZN3ams4kern4init26InitializeExceptionVectorsEv
/* Setup the exception stack in tpidr_el1. */
/* Setup the exception stack in cntv_cval_el0. */
ldr x1, [x20, #0x58]
msr tpidr_el1, x1
msr cntv_cval_el0, x1
/* Jump to the entrypoint. */
ldr x1, [x20, #0x40]