On 08/04/16 13:43, Christoffer Dall wrote:
On Mon, Apr 04, 2016 at 05:26:07PM +0100, Suzuki K Poulose wrote:
Define the page table helpers for walking the stage2 pagetable
for arm. Since both hyp and stage2 have the same number of levels,
as that of the host we reuse the host helpers.
The exceptions are the p.d_addr_end routines which have to deal
with IPA > 32bit, hence we use the open coded version of their host helpers
which supports 64bit.
+#ifndef __ARM_S2_PGTABLE_H_
+#define __ARM_S2_PGTABLE_H_
+
+#define stage2_pgd_none(pgd) pgd_none(pgd)
+#define stage2_pgd_clear(pgd) pgd_clear(pgd)
+#define stage2_pgd_present(pgd) pgd_present(pgd)
+#define stage2_pgd_populate(mm, pgd, pud) pgd_populate(mm, pgd, pud)
+#define stage2_pud_offset(pgd, address) pud_offset(pgd, address)
+#define stage2_pud_free(mm, pud) pud_free(mm, pud)
+
+#define stage2_pud_none(pud) pud_none(pud)
+#define stage2_pud_clear(pud) pud_clear(pud)
+#define stage2_pud_present(pud) pud_present(pud)
+#define stage2_pud_populate(mm, pud, pmd) pud_populate(mm, pud, pmd)
+#define stage2_pmd_offset(pud, address) pmd_offset(pud, address)
+#define stage2_pmd_free(mm, pmd) pmd_free(mm, pmd)
+
+#define stage2_pud_huge(pud) pud_huge(pud)
could we get rid of the mm parameter to all these stage2_ versions above
and simply implement them with the generic functions passing NULL in the
definitions instead?
We could, I retained it just to match the corresponding host version. Will change
it in the next version.
Otherwise:
Reviewed-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
Thanks
Suzuki
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