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arch: arm64: invalidate TLBs after ptables swap

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This prevent the new thread to attempt accessing cached ptable entries
which are no longer valid.

Signed-off-by: Manuel Argüelles <manuel.arguelles@coredumplabs.com>
This commit is contained in:
Manuel Argüelles 2021-08-11 15:45:34 +07:00 • committed by Christopher Friedt
commit 9ff6282089
1 changed files with 4 additions and 4 deletions
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8
arch/arm64/core/mmu.S
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@ -24,15 +24,15 @@ SECTION_FUNC(TEXT, z_arm64_set_ttbr0)
msr sctlr_el1, x1
isb
/* Switch the TTBR0 */
msr ttbr0_el1, x0
isb
/* Invalidate the TLBs */
tlbi vmalle1
dsb sy
isb
/* Switch the TTBR0 */
msr ttbr0_el1, x0
isb
/* Restore the saved SCTLR_EL1 */
msr sctlr_el1, x2
isb