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xen: split construction of p2m mfn tables from registration 

Build the p2m_mfn_list_list early with the rest of the p2m table, but
register it later when the real shared_info structure is in place.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Jeremy Fitzhardinge 2009-02-27 15:34:59 -08:00
parent e791ca0fd7
commit cdaead6b4e
1 changed files with 6 additions and 1 deletions
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7
arch/x86/xen/mmu.c
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@ -184,7 +184,7 @@ static inline unsigned p2m_index(unsigned long pfn)
}
/* Build the parallel p2m_top_mfn structures */
void xen_setup_mfn_list_list(void)
static void __init xen_build_mfn_list_list(void)
{
unsigned pfn, idx;
@ -198,7 +198,10 @@ void xen_setup_mfn_list_list(void)
unsigned topidx = idx * P2M_ENTRIES_PER_PAGE;
p2m_top_mfn_list[idx] = virt_to_mfn(&p2m_top_mfn[topidx]);
}
}
void xen_setup_mfn_list_list(void)
{
BUG_ON(HYPERVISOR_shared_info == &xen_dummy_shared_info);
HYPERVISOR_shared_info->arch.pfn_to_mfn_frame_list_list =
@ -218,6 +221,8 @@ void __init xen_build_dynamic_phys_to_machine(void)
p2m_top[topidx] = &mfn_list[pfn];
}
xen_build_mfn_list_list();
}
unsigned long get_phys_to_machine(unsigned long pfn)