xen/x86: Zero out .bss for PV guests

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ELF spec is unclear about whether .bss must me cleared by the loader.
Currently the domain builder does it when loading the guest but because
it is not (or rather may not be) guaranteed we should zero it out
explicitly.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>

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Boris Ostrovsky 2016-02-26 14:02:36 -05:00 • committed by David Vrabel

parent a4d7b75be0

commit 04b6b4a568

1 changed files with 9 additions and 0 deletions

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arch/x86/xen/xen-head.S

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