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Re: [Xen-devel] [PATCH 8/9] x86: check kexec relocation code fits in a page
Also
Reviewed-by: Don Slutz <dslutz@xxxxxxxxxxx>
-Don Slutz
On 11/06/13 09:49, David Vrabel wrote:
From: David Vrabel <david.vrabel@xxxxxxxxxx>
The kexec relocation (control) code must fit in a single page so add a
link time check for this.
Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>
Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
xen/arch/x86/xen.lds.S | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/xen/arch/x86/xen.lds.S b/xen/arch/x86/xen.lds.S
index 9600cdf..17db361 100644
--- a/xen/arch/x86/xen.lds.S
+++ b/xen/arch/x86/xen.lds.S
@@ -198,3 +198,5 @@ SECTIONS
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
}
+
+ASSERT(kexec_reloc_size - kexec_reloc <= PAGE_SIZE, "kexec_reloc is too large")
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