[POWERPC] Add code for removing HPTEs for parts of the linear mapping

[linux-2.6] / arch / powerpc / platforms / pseries / lpar.c

diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 9a455d46379d525181a4278714e22304f72028db..233d9be25f49248958f93eb91d55a92c8d5ebde6 100644 (file)
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -520,6 +520,20 @@ static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va,
        BUG_ON(lpar_rc != H_SUCCESS);
 }
 
+static void pSeries_lpar_hpte_removebolted(unsigned long ea,
+                                          int psize, int ssize)
+{
+       unsigned long slot, vsid, va;
+
+       vsid = get_kernel_vsid(ea, ssize);
+       va = hpt_va(ea, vsid, ssize);
+
+       slot = pSeries_lpar_hpte_find(va, psize, ssize);
+       BUG_ON(slot == -1);
+
+       pSeries_lpar_hpte_invalidate(slot, va, psize, ssize, 0);
+}
+
 /* Flag bits for H_BULK_REMOVE */
 #define HBR_REQUEST    0x4000000000000000UL
 #define HBR_RESPONSE   0x8000000000000000UL
@@ -597,6 +611,7 @@ void __init hpte_init_lpar(void)
        ppc_md.hpte_updateboltedpp = pSeries_lpar_hpte_updateboltedpp;
        ppc_md.hpte_insert      = pSeries_lpar_hpte_insert;
        ppc_md.hpte_remove      = pSeries_lpar_hpte_remove;
+       ppc_md.hpte_removebolted = pSeries_lpar_hpte_removebolted;
        ppc_md.flush_hash_range = pSeries_lpar_flush_hash_range;
        ppc_md.hpte_clear_all   = pSeries_lpar_hptab_clear;
 }