arm64: vmlinux.ld.S: add assertion for tramp_pg_dir offset

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Add TRAMP_SWAPPER_OFFSET and use that instead of hardcoding
the offset between swapper_pg_dir and tramp_pg_dir.

Then use TRAMP_SWAPPER_OFFSET to assert that the offset is
correct at link time.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20210202123658.22308-3-joey.gouly@arm.com
Signed-off-by: Will Deacon <will@kernel.org>

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Joey Gouly 2021-02-02 12:36:58 +00:00 • committed by Will Deacon

parent 00ef543419

commit 0188a894c3

3 changed files with 13 additions and 2 deletions

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6

arch/arm64/include/asm/memory.h

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4

arch/arm64/kernel/entry.S

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5

arch/arm64/kernel/vmlinux.lds.S

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