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Subject[PATCH] fill in missing pv_mmu_ops entries for PAGETABLE_LEVELS >= 3
On Fri, Jan 18, 2008 at 03:20:15PM -0200, Glauber de Oliveira Costa wrote:
> Hi,
>
> This small series provides some more fixes towards the goal
> to have the PARAVIRT selectable for x86_64. After that, just
> some more small steps are needed.
>
> The first fix is not even specific for PARAVIRT, and it's actually
> preventing the whole tree from booting.
>

And the following allows PARAVIRT kernels to boot on x86_64.

-----
Fill in missing pagetable manipulation entries in pv_mmu_ops
for PAGETABLE_LEVELS >= 3.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>


Index: linux-2.6-x86/arch/x86/kernel/paravirt.c
===================================================================
--- linux-2.6-x86.orig/arch/x86/kernel/paravirt.c
+++ linux-2.6-x86/arch/x86/kernel/paravirt.c
@@ -396,16 +396,25 @@ struct pv_mmu_ops pv_mmu_ops = {
.kmap_atomic_pte = kmap_atomic,
#endif

+#if PAGETABLE_LEVELS >= 3
#ifdef CONFIG_X86_PAE
.set_pte_atomic = native_set_pte_atomic,
.set_pte_present = native_set_pte_present,
- .set_pud = native_set_pud,
.pte_clear = native_pte_clear,
.pmd_clear = native_pmd_clear,
-
+#endif
+ .set_pud = native_set_pud,
+ .set_pgd = native_set_pgd,
+ .pgd_clear = native_pgd_clear,
.pmd_val = native_pmd_val,
.make_pmd = native_make_pmd,
+
+#if PAGETABLE_LEVELS == 4
+ .pud_val = native_pud_val,
+ .make_pud = native_make_pud,
+ .pud_clear = native_pud_clear,
#endif
+#endif /* PAGETABLE_LEVELS >= 3 */

.pte_val = native_pte_val,
.pgd_val = native_pgd_val,




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