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| author | Jeremy Fitzhardinge | 2007-05-02 19:27:13 +0200 |
|---|---|---|
| committer | Andi Kleen | 2007-05-02 19:27:13 +0200 |
| commit | 90caccb9758e88db68a69553689baee38254287b (patch) | |
| tree | d58d07649c62475810cfa527768034163c89eb15 /arch/i386/mm/pageattr.c | |
| parent | [PATCH] i386: PARAVIRT: Hooks to set up initial pagetable (diff) | |
| download | kernel-qcow2-linux-90caccb9758e88db68a69553689baee38254287b.tar.gz kernel-qcow2-linux-90caccb9758e88db68a69553689baee38254287b.tar.xz kernel-qcow2-linux-90caccb9758e88db68a69553689baee38254287b.zip | |
[PATCH] i386: PARAVIRT: Allocate a fixmap slot
Allocate a fixmap slot for use by a paravirt_ops implementation. This
is intended for early-boot bootstrap mappings. Once the zones and
allocator have been set up, it would be better to use get_vm_area() to
allocate some virtual space.
Xen uses this to map the hypervisor's shared info page, which doesn't
have a pseudo-physical page number, and therefore can't be mapped
ordinarily. It is needed early because it contains the vcpu state,
including the interrupt mask.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/i386/mm/pageattr.c')
0 files changed, 0 insertions, 0 deletions