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| author | Jeremy Fitzhardinge <jeremy@xensource.com> | 2007-07-18 03:37:04 +0200 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy@goop.org> | 2007-07-18 17:47:42 +0200 |
| commit | d572929cdd12a60732c3522f7cf011bfa29165cf (patch) | |
| tree | 4b1c351d7574b679f2d250483cffcedf3fdfa9be /include/asm-i386 | |
| parent | Allocate and free vmalloc areas (diff) | |
| download | linux-d572929cdd12a60732c3522f7cf011bfa29165cf.tar.xz linux-d572929cdd12a60732c3522f7cf011bfa29165cf.zip | |
paravirt: helper to disable all IO space
In a virtual environment, device drivers such as legacy IDE will waste
quite a lot of time probing for their devices which will never appear.
This helper function allows a paravirt implementation to lay claim to
the whole iomem and ioport space, thereby disabling all device drivers
trying to claim IO resources.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/asm-i386')
| -rw-r--r-- | include/asm-i386/paravirt.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-i386/paravirt.h b/include/asm-i386/paravirt.h index 786856950b1a..690ada22437a 100644 --- a/include/asm-i386/paravirt.h +++ b/include/asm-i386/paravirt.h @@ -262,6 +262,7 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *site, unsigned len) unsigned paravirt_patch_insns(void *site, unsigned len, const char *start, const char *end); +int paravirt_disable_iospace(void); /* * This generates an indirect call based on the operation type number. |