diff options
| author | Jeremy Fitzhardinge <jeremy@xensource.com> | 2008-02-13 16:20:35 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-02-13 16:20:35 +0100 |
| commit | 2b5407811db755257ae53c75cc6b312ed5d2ad9e (patch) | |
| tree | b81a01b5c05aa41bde1830044267990d52b08edb | |
| parent | 37cc8d7f963ba2deec29c9b68716944516a3244f (diff) | |
| download | lwn-2b5407811db755257ae53c75cc6b312ed5d2ad9e.tar.gz lwn-2b5407811db755257ae53c75cc6b312ed5d2ad9e.zip | |
xen: unpin initial Xen pagetable once we're finished with it
Unpin the Xen-provided pagetable once we've finished with it, so it
doesn't cause stray references which cause later swapper_pg_dir
pagetable updates to fail.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Tested-by: Jody Belka <knew-linux@pimb.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/xen/enlighten.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index de647bc6e74d..49e5358f481a 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -798,6 +798,10 @@ static __init void xen_pagetable_setup_start(pgd_t *base) * added to the table can be prepared properly for Xen. */ xen_write_cr3(__pa(base)); + + /* Unpin initial Xen pagetable */ + pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, + PFN_DOWN(__pa(xen_start_info->pt_base))); } static __init void xen_pagetable_setup_done(pgd_t *base) |