[Xen-devel] [PATCH for-4.13] xen/arm: setup: Calculate correctly the size of Xen

[Julien Grall <julien.grall@xxxxxxx>]

The current size of Xen is computed using _end - _start + 1. However,
_end is pointing one past the end of Xen, so the size of Xen is
off-by-one.

Signed-off-by: Julien Grall <julien.grall@xxxxxxx>
---
 xen/arch/arm/setup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c
index 705a917abf..51d32106b7 100644
--- a/xen/arch/arm/setup.c
+++ b/xen/arch/arm/setup.c
@@ -819,7 +819,7 @@ void __init start_xen(unsigned long boot_phys_offset,
     /* Register Xen's load address as a boot module. */
     xen_bootmodule = add_boot_module(BOOTMOD_XEN,
                              (paddr_t)(uintptr_t)(_start + boot_phys_offset),
-                             (paddr_t)(uintptr_t)(_end - _start + 1), false);
+                             (paddr_t)(uintptr_t)(_end - _start), false);
     BUG_ON(!xen_bootmodule);
 
     fdt_size = boot_fdt_info(device_tree_flattened, fdt_paddr);
-- 
2.11.0


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