[PATCH 1/4] powerpc: lookup_linux_pte has been made public

aik
2013-02-11T12:12:40Z

From: Alexey Kardashevskiy <aik@ozlabs.ru>

The lookup_linux_pte() function returns a linux PTE which
is required to convert KVM guest physical address into host real
address in real mode.

This convertion will be used by upcoming support of H_PUT_TCE_INDIRECT
as TCE list address comes from the guest directly so it is a guest
physical.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Cc: David Gibson <david@gibson.dropbear.id.au>
---
arch/powerpc/include/asm/pgtable-ppc64.h | 3 +++
arch/powerpc/kvm/book3s_hv_rm_mmu.c | 4 ++--
2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/pgtable-ppc64.h b/arch/powerpc/include/asm/pgtable-ppc64.h
index 0182c20..ddcc898 100644
--- a/arch/powerpc/include/asm/pgtable-ppc64.h
+++ b/arch/powerpc/include/asm/pgtable-ppc64.h
@@ -377,6 +377,9 @@ static inline pte_t *find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea,
}
#endif /* !CONFIG_HUGETLB_PAGE */

+pte_t lookup_linux_pte(pgd_t *pgdir, unsigned long hva,
+ int writing, unsigned long *pte_sizep);
+
#endif /* __ASSEMBLY__ */

#endif /* _ASM_POWERPC_PGTABLE_PPC64_H_ */
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index 19c93ba..6a042d0 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -145,8 +145,8 @@ static void remove_revmap_chain(struct kvm *kvm, long pte_index,
unlock_rmap(rmap);
}

-static pte_t lookup_linux_pte(pgd_t *pgdir, unsigned long hva,
- int writing, unsigned long *pte_sizep)
+pte_t lookup_linux_pte(pgd_t *pgdir, unsigned long hva,
+ int writing, unsigned long *pte_sizep)
{
pte_t *ptep;
unsigned long ps = *pte_sizep;
--
1.7.10.4