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| author | Fenghua Yu <fenghua.yu@intel.com> | 2013-03-19 08:04:44 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2013-03-19 19:51:08 -0700 |
| commit | c83a9d5e425d4678b05ca058fec6254f18601474 (patch) | |
| tree | 9fcab0ae6fa17816496cd7e1a16f0708dee3f660 /ipc | |
| parent | 66db3feb486c01349f767b98ebb10b0c3d2d021b (diff) | |
| download | op-kernel-dev-c83a9d5e425d4678b05ca058fec6254f18601474.zip op-kernel-dev-c83a9d5e425d4678b05ca058fec6254f18601474.tar.gz | |
x86-32, microcode_intel_early: Fix crash with CONFIG_DEBUG_VIRTUAL
In 32-bit, __pa_symbol() in CONFIG_DEBUG_VIRTUAL accesses kernel data
(e.g. max_low_pfn) that not only hasn't been setup yet in such early
boot phase, but since we are in linear mode, cannot even be detected
as uninitialized.
Thus, use __pa_nodebug() rather than __pa_symbol() to get a global
symbol's physical address.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1363705484-27645-1-git-send-email-fenghua.yu@intel.com
Reported-and-tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'ipc')
0 files changed, 0 insertions, 0 deletions
