[PATCH v4 1/2] xen/x86: Zero out .bss for PV guests

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 ---

[PATCH v4 1/2] xen/x86: Zero out .bss for PV guests

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 --- arch/x86/xen/xen-head.S | 9 + 1