x86: Remove direct uses of 0x82 as HYPERCALL_VECTOR.

We have a macro; we should use it.

Signed-off-by: Keir Fraser <keir@xen.org>

xen/arch/x86/domain.c

@@ -1784,7 +1784,7 @@ unsigned long hypercall_create_continuation(
 
         /* Ensure the hypercall trap instruction is re-executed. */
         if ( !is_hvm_vcpu(current) )
-            regs->eip -= 2;  /* re-execute 'syscall' / 'int 0x82' */
+            regs->eip -= 2;  /* re-execute 'syscall' / 'int $xx' */
         else
             current->arch.hvm_vcpu.hcall_preempted = 1;
 

xen/arch/x86/x86_32/traps.c

@@ -597,7 +597,7 @@ static void hypercall_page_initialise_ring1_kernel(void *hypercall_page)
         p = (char *)(hypercall_page + (i * 32));
         *(u8  *)(p+ 0) = 0xb8;    /* mov  $<i>,%eax */
         *(u32 *)(p+ 1) = i;
-        *(u16 *)(p+ 5) = 0x82cd;  /* int  $0x82 */
+        *(u16 *)(p+ 5) = (HYPERCALL_VECTOR << 8) | 0xcd; /* int  $xx */
         *(u8  *)(p+ 7) = 0xc3;    /* ret */
     }
 
@@ -610,7 +610,7 @@ static void hypercall_page_initialise_ring1_kernel(void *hypercall_page)
     *(u8  *)(p+ 0) = 0x50;    /* push %eax */
     *(u8  *)(p+ 1) = 0xb8;    /* mov  $__HYPERVISOR_iret,%eax */
     *(u32 *)(p+ 2) = __HYPERVISOR_iret;
-    *(u16 *)(p+ 6) = 0x82cd;  /* int  $0x82 */
+    *(u16 *)(p+ 6) = (HYPERCALL_VECTOR << 8) | 0xcd; /* int  $xx */
 }
 
 void hypercall_page_initialise(struct domain *d, void *hypercall_page)

xen/arch/x86/x86_64/compat/traps.c

@@ -364,7 +364,7 @@ static void hypercall_page_initialise_ring1_kernel(void *hypercall_page)
         p = (char *)(hypercall_page + (i * 32));
         *(u8  *)(p+ 0) = 0xb8;    /* mov  $<i>,%eax */
         *(u32 *)(p+ 1) = i;
-        *(u16 *)(p+ 5) = 0x82cd;  /* int  $0x82 */
+        *(u16 *)(p+ 5) = (HYPERCALL_VECTOR << 8) | 0xcd; /* int  $xx */
         *(u8  *)(p+ 7) = 0xc3;    /* ret */
     }
 
@@ -377,7 +377,7 @@ static void hypercall_page_initialise_ring1_kernel(void *hypercall_page)
     *(u8  *)(p+ 0) = 0x50;    /* push %eax */
     *(u8  *)(p+ 1) = 0xb8;    /* mov  $__HYPERVISOR_iret,%eax */
     *(u32 *)(p+ 2) = __HYPERVISOR_iret;
-    *(u16 *)(p+ 6) = 0x82cd;  /* int  $0x82 */
+    *(u16 *)(p+ 6) = (HYPERCALL_VECTOR << 8) | 0xcd; /* int  $xx */
 }
 
 /*