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| author | Christoffer Dall <c.dall@virtualopensystems.com> | 2013-01-21 00:43:10 +0100 |
|---|---|---|
| committer | Christoffer Dall <c.dall@virtualopensystems.com> | 2013-01-23 19:29:09 +0100 |
| commit | 9e9a367c29cebd25a356d53414612e115efdadcf (patch) | |
| tree | cca8b98c33597179e5cbc50118b1cf86e6299ed0 /arch/arm/include/asm/idmap.h | |
| parent | ARM: Add page table and page defines needed by KVM (diff) | |
| download | linux-9e9a367c29cebd25a356d53414612e115efdadcf.tar.xz linux-9e9a367c29cebd25a356d53414612e115efdadcf.zip | |
ARM: Section based HYP idmap
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.
Reviewed-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com>
Diffstat (limited to 'arch/arm/include/asm/idmap.h')
| -rw-r--r-- | arch/arm/include/asm/idmap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/idmap.h b/arch/arm/include/asm/idmap.h index bf863edb517d..1a66f907e5cc 100644 --- a/arch/arm/include/asm/idmap.h +++ b/arch/arm/include/asm/idmap.h @@ -8,6 +8,7 @@ #define __idmap __section(.idmap.text) noinline notrace extern pgd_t *idmap_pgd; +extern pgd_t *hyp_pgd; void setup_mm_for_reboot(void); |