[Xen-changelog] [xen stable-4.12] xen/arm: setup: Calculate correctly the size of Xen

[patchbot@xxxxxxx]

commit 4b5cc959dcc477e7165cb623ddc668d0b4a535cf
Author:     Julien Grall <julien.grall@xxxxxxx>
AuthorDate: Wed Oct 16 12:12:51 2019 +0100
Commit:     Stefano Stabellini <sstabellini@xxxxxxxxxx>
CommitDate: Tue Oct 29 10:56:22 2019 -0700

    xen/arm: setup: Calculate correctly the size of Xen
    
    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>
    Release-acked-by: Juergen Gross <jgross@xxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
    (cherry picked from commit 08e2059facd78d5ffaf206ba06ac2017c4adeed4)
---
 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 a2aedc43e2..7fe02120a7 100644
--- a/xen/arch/arm/setup.c
+++ b/xen/arch/arm/setup.c
@@ -774,7 +774,7 @@ 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);
 
     setup_pagetables(boot_phys_offset);
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.12

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