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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-22 13:09:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-22 13:09:51 -0800 |
| commit | ac630dd98a47b60b27d716758d5f4276cb974662 (patch) | |
| tree | 55e8d5f26c99523c6ebaa8e5059cf678c848fb25 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (diff) | |
| download | linux-dev-ac630dd98a47b60b27d716758d5f4276cb974662.tar.xz linux-dev-ac630dd98a47b60b27d716758d5f4276cb974662.zip | |
x86-64: don't set the early IDT to point directly to 'early_idt_handler'
The code requires the use of the proper per-exception-vector stub
functions (set up as the early_idt_handlers[] array - note the 's') that
make sure to set up the error vector number. This is true regardless of
whether CONFIG_EARLY_PRINTK is set or not.
Why? The stack offset for the comparison of __KERNEL_CS won't be right
otherwise, nor will the new check (from commit 8170e6bed465: "x86,
64bit: Use a #PF handler to materialize early mappings on demand") for
the page fault exception vector.
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions