diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-03-13 17:52:44 -0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-04-08 07:02:39 -0400 |
| commit | bbcc9c06695243ea23d30de36842df9200c33857 (patch) | |
| tree | 530a126fb2f774f5b4dd2cb4a8b0d042d79a4323 /drivers/video/console/sticon.c | |
| parent | 966cd0f3bdd422f0b10686fb59d0d456fbbb6398 (diff) | |
powerpc/kvm: Fix magic page vs. 32-bit RTAS on ppc64
When the kernel calls into RTAS, it switches to 32-bit mode. The
magic page was is longer accessible in that case, causing the
patched instructions in the RTAS call wrapper to crash.
This fixes it by making available a 32-bit mapping of the magic
page in that case. This mapping is flushed whenever we switch
the kernel back to 64-bit mode.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[agraf: add a check if the magic page is mapped]
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'drivers/video/console/sticon.c')
0 files changed, 0 insertions, 0 deletions