Rename "cr3" to "gpgdir" to avoid x86-specific naming.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h
index dc15b88..f921684 100644 (file)
--- a/drivers/lguest/lg.h
+++ b/drivers/lguest/lg.h
@@ -30,7 +30,7 @@ struct lguest_dma_info
 
 struct pgdir
 {
-       unsigned long cr3;
+       unsigned long gpgdir;
        pgd_t *pgdir;
 };
 
@@ -154,10 +154,10 @@ void copy_gdt_tls(const struct lguest *lg, struct desc_struct *gdt);
 int init_guest_pagetable(struct lguest *lg, unsigned long pgtable);
 void free_guest_pagetable(struct lguest *lg);
 void guest_new_pagetable(struct lguest *lg, unsigned long pgtable);
-void guest_set_pmd(struct lguest *lg, unsigned long cr3, u32 i);
+void guest_set_pmd(struct lguest *lg, unsigned long gpgdir, u32 i);
 void guest_pagetable_clear_all(struct lguest *lg);
 void guest_pagetable_flush_user(struct lguest *lg);
-void guest_set_pte(struct lguest *lg, unsigned long cr3,
+void guest_set_pte(struct lguest *lg, unsigned long gpgdir,
                   unsigned long vaddr, pte_t val);
 void map_switcher_in_guest(struct lguest *lg, struct lguest_pages *pages);
 int demand_page(struct lguest *info, unsigned long cr2, int errcode);

diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
index 5c4c53f..bfe3650 100644 (file)
--- a/drivers/lguest/page_tables.c
+++ b/drivers/lguest/page_tables.c
@@ -96,7 +96,7 @@ static pte_t *spte_addr(struct lguest *lg, pgd_t spgd, unsigned long vaddr)
 static unsigned long gpgd_addr(struct lguest *lg, unsigned long vaddr)
 {
        unsigned int index = vaddr >> (PGDIR_SHIFT);
-       return lg->pgdirs[lg->pgdidx].cr3 + index * sizeof(pgd_t);
+       return lg->pgdirs[lg->pgdidx].gpgdir + index * sizeof(pgd_t);
 }
 
 static unsigned long gpte_addr(struct lguest *lg,
@@ -365,7 +365,7 @@ static unsigned int find_pgdir(struct lguest *lg, unsigned long pgtable)
 {
        unsigned int i;
        for (i = 0; i < ARRAY_SIZE(lg->pgdirs); i++)
-               if (lg->pgdirs[i].cr3 == pgtable)
+               if (lg->pgdirs[i].gpgdir == pgtable)
                        break;
        return i;
 }
@@ -374,7 +374,7 @@ static unsigned int find_pgdir(struct lguest *lg, unsigned long pgtable)
  * allocate a new one (and so the kernel parts are not there), we set
  * blank_pgdir. */
 static unsigned int new_pgdir(struct lguest *lg,
-                             unsigned long cr3,
+                             unsigned long gpgdir,
                              int *blank_pgdir)
 {
        unsigned int next;
@@ -394,7 +394,7 @@ static unsigned int new_pgdir(struct lguest *lg,
                        *blank_pgdir = 1;
        }
        /* Record which Guest toplevel this shadows. */
-       lg->pgdirs[next].cr3 = cr3;
+       lg->pgdirs[next].gpgdir = gpgdir;
        /* Release all the non-kernel mappings. */
        flush_user_mappings(lg, next);
 
@@ -496,7 +496,7 @@ static void do_set_pte(struct lguest *lg, int idx,
  * The benefit is that when we have to track a new page table, we can copy keep
  * all the kernel mappings.  This speeds up context switch immensely. */
 void guest_set_pte(struct lguest *lg,
-                  unsigned long cr3, unsigned long vaddr, pte_t gpte)
+                  unsigned long gpgdir, unsigned long vaddr, pte_t gpte)
 {
        /* Kernel mappings must be changed on all top levels.  Slow, but
         * doesn't happen often. */
@@ -507,7 +507,7 @@ void guest_set_pte(struct lguest *lg,
                                do_set_pte(lg, i, vaddr, gpte);
        } else {
                /* Is this page table one we have a shadow for? */
-               int pgdir = find_pgdir(lg, cr3);
+               int pgdir = find_pgdir(lg, gpgdir);
                if (pgdir != ARRAY_SIZE(lg->pgdirs))
                        /* If so, do the update. */
                        do_set_pte(lg, pgdir, vaddr, gpte);
@@ -528,7 +528,7 @@ void guest_set_pte(struct lguest *lg,
  *
  * So with that in mind here's our code to to update a (top-level) PGD entry:
  */
-void guest_set_pmd(struct lguest *lg, unsigned long cr3, u32 idx)
+void guest_set_pmd(struct lguest *lg, unsigned long gpgdir, u32 idx)
 {
        int pgdir;
 
@@ -538,7 +538,7 @@ void guest_set_pmd(struct lguest *lg, unsigned long cr3, u32 idx)
                return;
 
        /* If they're talking about a page table we have a shadow for... */
-       pgdir = find_pgdir(lg, cr3);
+       pgdir = find_pgdir(lg, gpgdir);
        if (pgdir < ARRAY_SIZE(lg->pgdirs))
                /* ... throw it away. */
                release_pgd(lg, lg->pgdirs[pgdir].pgdir + idx);
@@ -558,7 +558,7 @@ int init_guest_pagetable(struct lguest *lg, unsigned long pgtable)
        /* We start on the first shadow page table, and give it a blank PGD
         * page. */
        lg->pgdidx = 0;
-       lg->pgdirs[lg->pgdidx].cr3 = pgtable;
+       lg->pgdirs[lg->pgdidx].gpgdir = pgtable;
        lg->pgdirs[lg->pgdidx].pgdir = (pgd_t*)get_zeroed_page(GFP_KERNEL);
        if (!lg->pgdirs[lg->pgdidx].pgdir)
                return -ENOMEM;