diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-02-16 13:52:36 +0100 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-11-17 09:49:36 +0800 |
| commit | 8163c584020b655bcfa65abb77ef7a932fff80eb (patch) | |
| tree | 7e05ead9a8d6677002f70ad3679ced0044edcca5 /arch/arm64/kernel | |
| parent | 602decea81c1d7e89cb633acb0e34fd74cd8a122 (diff) | |
arm64: introduce KIMAGE_VADDR as the virtual base of the kernel region
This introduces the preprocessor symbol KIMAGE_VADDR which will serve as
the symbolic virtual base of the kernel region, i.e., the kernel's virtual
offset will be KIMAGE_VADDR + TEXT_OFFSET. For now, we define it as being
equal to PAGE_OFFSET, but in the future, it will be moved below it once
we move the kernel virtual mapping out of the linear mapping.
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit ab893fb9f1b17f02139bce547bb4b69e96b9ae16)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Diffstat (limited to 'arch/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/head.S | 2 | ||||
| -rw-r--r-- | arch/arm64/kernel/vmlinux.lds.S | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index 79cf6059ea50..fcddd00e2431 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -386,7 +386,7 @@ __create_page_tables: * Map the kernel image (starting with PHYS_OFFSET). */ mov x0, x26 // swapper_pg_dir - mov x5, #PAGE_OFFSET + ldr x5, =KIMAGE_VADDR create_pgd_entry x0, x5, x3, x6 ldr x6, =KERNEL_END // __va(KERNEL_END) mov x3, x24 // phys offset diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S index fa2fc078990f..9e570d4d4b23 100644 --- a/arch/arm64/kernel/vmlinux.lds.S +++ b/arch/arm64/kernel/vmlinux.lds.S @@ -99,7 +99,7 @@ SECTIONS *(.discard.*) } - . = PAGE_OFFSET + TEXT_OFFSET; + . = KIMAGE_VADDR + TEXT_OFFSET; .head.text : { _text = .; @@ -205,4 +205,4 @@ ASSERT(__hibernate_exit_text_end - (__hibernate_exit_text_start & ~(SZ_4K - 1)) /* * If padding is applied before .head.text, virt<->phys conversions will fail. */ -ASSERT(_text == (PAGE_OFFSET + TEXT_OFFSET), "HEAD is misaligned") +ASSERT(_text == (KIMAGE_VADDR + TEXT_OFFSET), "HEAD is misaligned") |