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xen/pvh: increase early stack size

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While booting on an AMD EPYC box the stack canary would detect stack
overflows when using the current PVH early stack size (256). Switch to
using the value defined by BOOT_STACK_SIZE, which prevents the stack
overflow.

Cc: <stable@vger.kernel.org> # 4.11
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
This commit is contained in:
Roger Pau Monne 2018-10-09 12:32:37 +02:00 committed by Juergen Gross
parent a856531951
commit 7deecbda30
1 changed files with 1 additions and 1 deletions
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arch/x86/xen/xen-pvh.S
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@ -170,7 +170,7 @@ canary:
.fill 48, 1, 0
early_stack:
.fill 256, 1, 0
.fill BOOT_STACK_SIZE, 1, 0
early_stack_end:
ELFNOTE(Xen, XEN_ELFNOTE_PHYS32_ENTRY,