lguest: replace hypercall name LHCALL_SET_PMD with LHCALL_SET_PGD

replace LHCALL_SET_PMD with LHCALL_SET_PGD hypercall name
(That's really what it is, and the confusion gets worse with PAE support)
Signed-off-by: Matias Zabaljauregui <zabaljauregui@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reported-by: Jeremy Fitzhardinge <jeremy@goop.org>

arch/x86/include/asm/lguest_hcall.h

@@ -13,7 +13,7 @@
 #define LHCALL_SET_CLOCKEVENT	9
 #define LHCALL_HALT		10
 #define LHCALL_SET_PTE		14
-#define LHCALL_SET_PMD		15
+#define LHCALL_SET_PGD		15
 #define LHCALL_LOAD_TLS		16
 #define LHCALL_NOTIFY		17
 #define LHCALL_LOAD_GDT_ENTRY	18

arch/x86/lguest/boot.c

@@ -535,7 +535,7 @@ static void lguest_set_pte_at(struct mm_struct *mm, unsigned long addr,
 static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval)
 {
 	native_set_pmd(pmdp, pmdval);
-	lazy_hcall2(LHCALL_SET_PMD, __pa(pmdp) & PAGE_MASK,
+	lazy_hcall2(LHCALL_SET_PGD, __pa(pmdp) & PAGE_MASK,
 		   (__pa(pmdp) & (PAGE_SIZE - 1)) / sizeof(pmd_t));
 }
 

drivers/lguest/hypercalls.c

@@ -79,8 +79,8 @@ static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args)
 	case LHCALL_SET_PTE:
 		guest_set_pte(cpu, args->arg1, args->arg2, __pte(args->arg3));
 		break;
-	case LHCALL_SET_PMD:
-		guest_set_pmd(cpu->lg, args->arg1, args->arg2);
+	case LHCALL_SET_PGD:
+		guest_set_pgd(cpu->lg, args->arg1, args->arg2);
 		break;
 	case LHCALL_SET_CLOCKEVENT:
 		guest_set_clockevent(cpu, args->arg1);

drivers/lguest/lg.h

@@ -169,7 +169,7 @@ void copy_gdt_tls(const struct lg_cpu *cpu, struct desc_struct *gdt);
 int init_guest_pagetable(struct lguest *lg);
 void free_guest_pagetable(struct lguest *lg);
 void guest_new_pagetable(struct lg_cpu *cpu, unsigned long pgtable);
-void guest_set_pmd(struct lguest *lg, unsigned long gpgdir, u32 i);
+void guest_set_pgd(struct lguest *lg, unsigned long gpgdir, u32 i);
 void guest_pagetable_clear_all(struct lg_cpu *cpu);
 void guest_pagetable_flush_user(struct lg_cpu *cpu);
 void guest_set_pte(struct lg_cpu *cpu, unsigned long gpgdir,

drivers/lguest/page_tables.c

@@ -568,7 +568,7 @@ void guest_set_pte(struct lg_cpu *cpu,
  *
  * 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 gpgdir, u32 idx)
+void guest_set_pgd(struct lguest *lg, unsigned long gpgdir, u32 idx)
 {
 	int pgdir;