On 11/10/2012 09:42 AM, Christoffer Dall wrote: > Add a method (hyp_idmap_setup) to populate a hyp pgd with an > identity mapping of the code contained in the .hyp.idmap.text > section. > > Offer a method to drop this identity mapping through > hyp_idmap_teardown. > > Make all the above depend on CONFIG_ARM_VIRT_EXT and CONFIG_ARM_LPAE. > > Cc: Will Deacon <will.deacon@xxxxxxx> > Reviewed-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx> > Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx> > Signed-off-by: Christoffer Dall <c.dall@xxxxxxxxxxxxxxxxxxxxxx> > --- > arch/arm/include/asm/idmap.h | 5 ++ > arch/arm/include/asm/pgtable-3level-hwdef.h | 1 > arch/arm/kernel/vmlinux.lds.S | 6 ++ > arch/arm/mm/idmap.c | 74 +++++++++++++++++++++++---- > 4 files changed, 73 insertions(+), 13 deletions(-) > > diff --git a/arch/arm/include/asm/idmap.h b/arch/arm/include/asm/idmap.h > index bf863ed..36708ba 100644 > --- a/arch/arm/include/asm/idmap.h > +++ b/arch/arm/include/asm/idmap.h > @@ -11,4 +11,9 @@ extern pgd_t *idmap_pgd; > > void setup_mm_for_reboot(void); > > +#ifdef CONFIG_ARM_VIRT_EXT > +void hyp_idmap_teardown(pgd_t *hyp_pgd); > +void hyp_idmap_setup(pgd_t *hyp_pgd); > +#endif Minor nit. You don't need ifdefs around declarations. Rob -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
