diff options
Diffstat (limited to 'arch/arm64/kernel/vmlinux.lds.S')
| -rw-r--r-- | arch/arm64/kernel/vmlinux.lds.S | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S index 7da3e5c366a0..0221aca6493d 100644 --- a/arch/arm64/kernel/vmlinux.lds.S +++ b/arch/arm64/kernel/vmlinux.lds.S @@ -57,6 +57,17 @@ jiffies = jiffies_64; #define HIBERNATE_TEXT #endif +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 +#define TRAMP_TEXT \ + . = ALIGN(PAGE_SIZE); \ + VMLINUX_SYMBOL(__entry_tramp_text_start) = .; \ + *(.entry.tramp.text) \ + . = ALIGN(PAGE_SIZE); \ + VMLINUX_SYMBOL(__entry_tramp_text_end) = .; +#else +#define TRAMP_TEXT +#endif + /* * The size of the PE/COFF section that covers the kernel image, which * runs from stext to _edata, must be a round multiple of the PE/COFF @@ -113,6 +124,7 @@ SECTIONS HYPERVISOR_TEXT IDMAP_TEXT HIBERNATE_TEXT + TRAMP_TEXT *(.fixup) *(.gnu.warning) . = ALIGN(16); @@ -206,13 +218,19 @@ SECTIONS . = ALIGN(PAGE_SIZE); idmap_pg_dir = .; . += IDMAP_DIR_SIZE; - swapper_pg_dir = .; - . += SWAPPER_DIR_SIZE; + +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 + tramp_pg_dir = .; + . += PAGE_SIZE; +#endif #ifdef CONFIG_ARM64_SW_TTBR0_PAN reserved_ttbr0 = .; . += RESERVED_TTBR0_SIZE; #endif + swapper_pg_dir = .; + . += SWAPPER_DIR_SIZE; + swapper_pg_end = .; __pecoff_data_size = ABSOLUTE(. - __initdata_begin); _end = .; @@ -234,7 +252,10 @@ ASSERT(__idmap_text_end - (__idmap_text_start & ~(SZ_4K - 1)) <= SZ_4K, ASSERT(__hibernate_exit_text_end - (__hibernate_exit_text_start & ~(SZ_4K - 1)) <= SZ_4K, "Hibernate exit text too big or misaligned") #endif - +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 +ASSERT((__entry_tramp_text_end - __entry_tramp_text_start) == PAGE_SIZE, + "Entry trampoline text too big") +#endif /* * If padding is applied before .head.text, virt<->phys conversions will fail. */ |