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| author | Nicholas Piggin <npiggin@gmail.com> | 2020-04-27 21:08:04 +1000 |
|---|---|---|
| committer | Oliver O'Halloran <oohall@gmail.com> | 2020-06-11 12:52:55 +1000 |
| commit | 0deffc80773cc63386846b794b7f1e702212b8f1 (patch) | |
| tree | 48931e6ca05ff8a6883d356320fedbc195e64bdc /asm | |
| parent | 2cc897067b87d9983250776739c0a4b2e44578f3 (diff) | |
| download | skiboot-0deffc80773cc63386846b794b7f1e702212b8f1.zip skiboot-0deffc80773cc63386846b794b7f1e702212b8f1.tar.gz skiboot-0deffc80773cc63386846b794b7f1e702212b8f1.tar.bz2 | |
move opal_branch_table, opal_num_args to .rodata section
.head is for code and data which must reside at a fixed low address,
mainly entry points.
These are moved into .rodata. Despite being modified at runtime, this
facilitates these tables being write-protected in a later patch.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Diffstat (limited to 'asm')
| -rw-r--r-- | asm/head.S | 7 | ||||
| -rw-r--r-- | asm/misc.S | 10 |
2 files changed, 10 insertions, 7 deletions
@@ -299,13 +299,6 @@ exception_entry_foo: b . .= EXCEPTION_VECTORS_END - /* This is the OPAL branch table. It's populated at boot time - * with function pointers to the various OPAL functions from - * the content of the .opal_table section, indexed by Token. - */ -.global opal_branch_table -opal_branch_table: - .space 8 * (OPAL_LAST + 1) /* Stores the offset we were started from. Used later on if we want to * read any unrelocated code/data such as the built-in kernel image @@ -9,9 +9,19 @@ #include <asm-offsets.h> #include <processor.h> #include <stack.h> +#include <opal-api.h> #define OLD_BINUTILS 1 + .section ".rodata" + /* This is the OPAL branch table. It's populated at boot time + * with function pointers to the various OPAL functions from + * the content of the .opal_table section, indexed by Token. + */ +.global opal_branch_table +opal_branch_table: + .space 8 * (OPAL_LAST + 1) + .section ".text","ax" .balign 0x10 |