diff --git a/xen/arch/arm/acpi/lib.c b/xen/arch/arm/acpi/lib.c
index 41d521f720ac..736cf09ecaa8 100644
--- a/xen/arch/arm/acpi/lib.c
+++ b/xen/arch/arm/acpi/lib.c
@@ -40,10 +40,10 @@ char *__acpi_map_table(paddr_t phys, unsigned long size)
         return NULL;
 
     offset = phys & (PAGE_SIZE - 1);
-    base = FIXMAP_ADDR(FIXMAP_ACPI_BEGIN) + offset;
+    base = FIXMAP_ADDR(FIX_ACPI_BEGIN) + offset;
 
     /* Check the fixmap is big enough to map the region */
-    if ( (FIXMAP_ADDR(FIXMAP_ACPI_END) + PAGE_SIZE - base) < size )
+    if ( (FIXMAP_ADDR(FIX_ACPI_END) + PAGE_SIZE - base) < size )
         return NULL;
 
     /* With the fixmap, we can only map one region at the time */
@@ -54,7 +54,7 @@ char *__acpi_map_table(paddr_t phys, unsigned long size)
 
     size += offset;
     mfn = maddr_to_mfn(phys);
-    idx = FIXMAP_ACPI_BEGIN;
+    idx = FIX_ACPI_BEGIN;
 
     do {
         set_fixmap(idx, mfn, PAGE_HYPERVISOR);
@@ -72,8 +72,8 @@ bool __acpi_unmap_table(const void *ptr, unsigned long size)
     unsigned int idx;
 
     /* We are only handling fixmap address in the arch code */
-    if ( (vaddr < FIXMAP_ADDR(FIXMAP_ACPI_BEGIN)) ||
-         (vaddr >= (FIXMAP_ADDR(FIXMAP_ACPI_END) + PAGE_SIZE)) )
+    if ( (vaddr < FIXMAP_ADDR(FIX_ACPI_BEGIN)) ||
+         (vaddr >= (FIXMAP_ADDR(FIX_ACPI_END) + PAGE_SIZE)) )
         return false;
 
     /*
@@ -81,16 +81,16 @@ bool __acpi_unmap_table(const void *ptr, unsigned long size)
      * for the ACPI fixmap region. The caller is expected to free with
      * the same address.
      */
-    ASSERT((vaddr & PAGE_MASK) == FIXMAP_ADDR(FIXMAP_ACPI_BEGIN));
+    ASSERT((vaddr & PAGE_MASK) == FIXMAP_ADDR(FIX_ACPI_BEGIN));
 
     /* The region allocated fit in the ACPI fixmap region. */
-    ASSERT(size < (FIXMAP_ADDR(FIXMAP_ACPI_END) + PAGE_SIZE - vaddr));
+    ASSERT(size < (FIXMAP_ADDR(FIX_ACPI_END) + PAGE_SIZE - vaddr));
     ASSERT(fixmap_inuse);
 
     fixmap_inuse = false;
 
-    size += vaddr - FIXMAP_ADDR(FIXMAP_ACPI_BEGIN);
-    idx = FIXMAP_ACPI_BEGIN;
+    size += vaddr - FIXMAP_ADDR(FIX_ACPI_BEGIN);
+    idx = FIX_ACPI_BEGIN;
 
     do
     {
diff --git a/xen/arch/arm/include/asm/early_printk.h b/xen/arch/arm/include/asm/early_printk.h
index c5149b2976da..a5f48801f476 100644
--- a/xen/arch/arm/include/asm/early_printk.h
+++ b/xen/arch/arm/include/asm/early_printk.h
@@ -17,7 +17,7 @@
 
 /* need to add the uart address offset in page to the fixmap address */
 #define EARLY_UART_VIRTUAL_ADDRESS \
-    (FIXMAP_ADDR(FIXMAP_CONSOLE) + (CONFIG_EARLY_UART_BASE_ADDRESS & ~PAGE_MASK))
+    (FIXMAP_ADDR(FIX_CONSOLE) + (CONFIG_EARLY_UART_BASE_ADDRESS & ~PAGE_MASK))
 
 #endif /* !CONFIG_EARLY_PRINTK */
 
diff --git a/xen/arch/arm/include/asm/fixmap.h b/xen/arch/arm/include/asm/fixmap.h
index d0c9a52c8c28..154db85686c2 100644
--- a/xen/arch/arm/include/asm/fixmap.h
+++ b/xen/arch/arm/include/asm/fixmap.h
@@ -8,17 +8,17 @@
 #include <xen/pmap.h>
 
 /* Fixmap slots */
-#define FIXMAP_CONSOLE  0  /* The primary UART */
-#define FIXMAP_MISC     1  /* Ephemeral mappings of hardware */
-#define FIXMAP_ACPI_BEGIN  2  /* Start mappings of ACPI tables */
-#define FIXMAP_ACPI_END    (FIXMAP_ACPI_BEGIN + NUM_FIXMAP_ACPI_PAGES - 1)  /* End mappings of ACPI tables */
-#define FIXMAP_PMAP_BEGIN (FIXMAP_ACPI_END + 1) /* Start of PMAP */
-#define FIXMAP_PMAP_END (FIXMAP_PMAP_BEGIN + NUM_FIX_PMAP - 1) /* End of PMAP */
+#define FIX_CONSOLE  0  /* The primary UART */
+#define FIX_MISC     1  /* Ephemeral mappings of hardware */
+#define FIX_ACPI_BEGIN  2  /* Start mappings of ACPI tables */
+#define FIX_ACPI_END    (FIX_ACPI_BEGIN + NUM_FIXMAP_ACPI_PAGES - 1)  /* End mappings of ACPI tables */
+#define FIX_PMAP_BEGIN (FIX_ACPI_END + 1) /* Start of PMAP */
+#define FIX_PMAP_END (FIX_PMAP_BEGIN + NUM_FIX_PMAP - 1) /* End of PMAP */
 
-#define FIXMAP_LAST FIXMAP_PMAP_END
+#define FIX_LAST FIX_PMAP_END
 
 #define FIXADDR_START FIXMAP_ADDR(0)
-#define FIXADDR_TOP FIXMAP_ADDR(FIXMAP_LAST)
+#define FIXADDR_TOP FIXMAP_ADDR(FIX_LAST)
 
 #ifndef __ASSEMBLY__
 
diff --git a/xen/arch/arm/kernel.c b/xen/arch/arm/kernel.c
index 23b840ea9ea8..56800750fd9c 100644
--- a/xen/arch/arm/kernel.c
+++ b/xen/arch/arm/kernel.c
@@ -49,7 +49,7 @@ struct minimal_dtb_header {
  */
 void __init copy_from_paddr(void *dst, paddr_t paddr, unsigned long len)
 {
-    void *src = (void *)FIXMAP_ADDR(FIXMAP_MISC);
+    void *src = (void *)FIXMAP_ADDR(FIX_MISC);
 
     while (len) {
         unsigned long l, s;
@@ -57,10 +57,10 @@ void __init copy_from_paddr(void *dst, paddr_t paddr, unsigned long len)
         s = paddr & (PAGE_SIZE-1);
         l = min(PAGE_SIZE - s, len);
 
-        set_fixmap(FIXMAP_MISC, maddr_to_mfn(paddr), PAGE_HYPERVISOR_WC);
+        set_fixmap(FIX_MISC, maddr_to_mfn(paddr), PAGE_HYPERVISOR_WC);
         memcpy(dst, src + s, l);
         clean_dcache_va_range(dst, l);
-        clear_fixmap(FIXMAP_MISC);
+        clear_fixmap(FIX_MISC);
 
         paddr += l;
         dst += l;
diff --git a/xen/common/pmap.c b/xen/common/pmap.c
index 14517198aae3..6e3ba9298df4 100644
--- a/xen/common/pmap.c
+++ b/xen/common/pmap.c
@@ -32,8 +32,8 @@ void *__init pmap_map(mfn_t mfn)
 
     __set_bit(idx, inuse);
 
-    slot = idx + FIXMAP_PMAP_BEGIN;
-    ASSERT(slot >= FIXMAP_PMAP_BEGIN && slot <= FIXMAP_PMAP_END);
+    slot = idx + FIX_PMAP_BEGIN;
+    ASSERT(slot >= FIX_PMAP_BEGIN && slot <= FIX_PMAP_END);
 
     /*
      * We cannot use set_fixmap() here. We use PMAP when the domain map
@@ -53,10 +53,10 @@ void __init pmap_unmap(const void *p)
     unsigned int slot = virt_to_fix((unsigned long)p);
 
     ASSERT(system_state < SYS_STATE_smp_boot);
-    ASSERT(slot >= FIXMAP_PMAP_BEGIN && slot <= FIXMAP_PMAP_END);
+    ASSERT(slot >= FIX_PMAP_BEGIN && slot <= FIX_PMAP_END);
     ASSERT(!in_irq());
 
-    idx = slot - FIXMAP_PMAP_BEGIN;
+    idx = slot - FIX_PMAP_BEGIN;
 
     __clear_bit(idx, inuse);
     arch_pmap_unmap(slot);
