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x86/paravirt/xen: add set_fixmap pv_mmu_ops

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Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jeremy Fitzhardinge
2008-06-17 11:42:01 -07:00
committed by Ingo Molnar
parent d494a96125
commit aeaaa59c7e
5 changed files with 63 additions and 4 deletions
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29
arch/x86/xen/enlighten.c
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@@ -960,6 +960,33 @@ static unsigned xen_patch(u8 type, u16 clobbers, void *insnbuf,
return ret;
}
static void xen_set_fixmap(unsigned idx, unsigned long phys, pgprot_t prot)
{
pte_t pte;
phys >>= PAGE_SHIFT;
switch (idx) {
case FIX_BTMAP_END ... FIX_BTMAP_BEGIN:
#ifdef CONFIG_X86_F00F_BUG
case FIX_F00F_IDT:
#endif
case FIX_WP_TEST:
case FIX_VDSO:
#ifdef CONFIG_X86_LOCAL_APIC
case FIX_APIC_BASE: /* maps dummy local APIC */
#endif
pte = pfn_pte(phys, prot);
break;
default:
pte = mfn_pte(phys, prot);
break;
}
__native_set_fixmap(idx, pte);
}
static const struct pv_info xen_info __initdata = {
.paravirt_enabled = 1,
.shared_kernel_pmd = 0,
@@ -1112,6 +1139,8 @@ static const struct pv_mmu_ops xen_mmu_ops __initdata = {
.enter = paravirt_enter_lazy_mmu,
.leave = xen_leave_lazy,
},
.set_fixmap = xen_set_fixmap,
};
#ifdef CONFIG_SMP