diff options
| author | James Morse <james.morse@arm.com> | 2021-11-18 15:04:32 +0000 |
|---|---|---|
| committer | James Morse <james.morse@arm.com> | 2022-02-15 17:40:28 +0000 |
| commit | a9c406e6462ff14956d690de7bbe5131a5677dc9 (patch) | |
| tree | 90b8435c09994d03fff2d8d26d131c503efdd700 /arch/arm64/include/asm/sections.h | |
| parent | c47e4d04ba0f1ea17353d85d45f611277507e07a (diff) | |
arm64: entry: Allow the trampoline text to occupy multiple pages
Adding a second set of vectors to .entry.tramp.text will make it
larger than a single 4K page.
Allow the trampoline text to occupy up to three pages by adding two
more fixmap slots. Previous changes to tramp_valias allowed it to reach
beyond a single page.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/sections.h')
| -rw-r--r-- | arch/arm64/include/asm/sections.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/sections.h b/arch/arm64/include/asm/sections.h index 152cb35bf9df..40971ac1303f 100644 --- a/arch/arm64/include/asm/sections.h +++ b/arch/arm64/include/asm/sections.h @@ -23,4 +23,9 @@ extern char __mmuoff_data_start[], __mmuoff_data_end[]; extern char __entry_tramp_text_start[], __entry_tramp_text_end[]; extern char __relocate_new_kernel_start[], __relocate_new_kernel_end[]; +static inline size_t entry_tramp_text_size(void) +{ + return __entry_tramp_text_end - __entry_tramp_text_start; +} + #endif /* __ASM_SECTIONS_H */ |