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| author |   Joey Gouly <joey.gouly@arm.com> | 2021-02-02 12:36:57 +0000 |
|---|---|---|
| committer |   Will Deacon <will@kernel.org> | 2021-02-03 20:43:45 +0000 |
| commit | 00ef543419366e8b742435992d08e0d5a87fd561 (patch) | |
| tree | e41fabcdd9176181f10a0732d290f081f62dcd6d /arch/arm64/kernel/vmlinux.lds.S | |
| parent | arm64/ptdump:display the Linear Mapping start marker (diff) | |
| download | linux-dev-00ef543419366e8b742435992d08e0d5a87fd561.tar.xz linux-dev-00ef543419366e8b742435992d08e0d5a87fd561.zip | |
arm64: vmlinux.ld.S: add assertion for reserved_pg_dir offset
Add RESERVED_SWAPPER_OFFSET and use that instead of hardcoding
the offset between swapper_pg_dir and reserved_pg_dir.
Then use RESERVED_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/20210202123658.22308-2-joey.gouly@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/kernel/vmlinux.lds.S')
| -rw-r--r-- | arch/arm64/kernel/vmlinux.lds.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S index 4c0b0c89ad59..a03a5300bce9 100644 --- a/arch/arm64/kernel/vmlinux.lds.S +++ b/arch/arm64/kernel/vmlinux.lds.S @@ -316,3 +316,6 @@ ASSERT((__entry_tramp_text_end - __entry_tramp_text_start) == PAGE_SIZE, * If padding is applied before .head.text, virt<->phys conversions will fail. */ ASSERT(_text == KIMAGE_VADDR, "HEAD is misaligned") + +ASSERT(swapper_pg_dir - reserved_pg_dir == RESERVED_SWAPPER_OFFSET, + "RESERVED_SWAPPER_OFFSET is wrong!") |