MIPS: Export pgd/pmd symbols for KVM
Export pmd_init(), invalid_pmd_table and tlbmiss_handler_setup_pgd to
GPL kernel modules so that MIPS KVM can use the inline page table
management functions and switch between page tables:
- pmd_init() will be used directly by KVM to initialise newly allocated
pmd tables with invalid lower level table pointers.
- invalid_pmd_table is used by pud_present(), pud_none(), and
pud_clear(), which KVM will use to test and clear pud entries.
- tlbmiss_handler_setup_pgd() will be called by KVM entry code to switch
to the appropriate GVA page tables.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
diff --git a/arch/mips/mm/pgtable-64.c b/arch/mips/mm/pgtable-64.c
index ce4473e..0ae7b28 100644
--- a/arch/mips/mm/pgtable-64.c
+++ b/arch/mips/mm/pgtable-64.c
@@ -6,6 +6,7 @@
* Copyright (C) 1999, 2000 by Silicon Graphics
* Copyright (C) 2003 by Ralf Baechle
*/
+#include <linux/export.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <asm/fixmap.h>
@@ -60,6 +61,7 @@ void pmd_init(unsigned long addr, unsigned long pagetable)
p[-1] = pagetable;
} while (p != end);
}
+EXPORT_SYMBOL_GPL(pmd_init);
#endif
pmd_t mk_pmd(struct page *page, pgprot_t prot)