static __init void xen_pagetable_setup_start(pgd_t *base)
{
pgd_t *xen_pgd = (pgd_t *)xen_start_info->pt_base;
+ int i;
/* special set_pte for pagetable initialization */
pv_mmu_ops.set_pte = xen_set_pte_init;
init_mm.pgd = base;
/*
- * copy top-level of Xen-supplied pagetable into place. For
- * !PAE we can use this as-is, but for PAE it is a stand-in
- * while we copy the pmd pages.
+ * copy top-level of Xen-supplied pagetable into place. This
+ * is a stand-in while we copy the pmd pages.
*/
memcpy(base, xen_pgd, PTRS_PER_PGD * sizeof(pgd_t));
- if (PTRS_PER_PMD > 1) {
- int i;
- /*
- * For PAE, need to allocate new pmds, rather than
- * share Xen's, since Xen doesn't like pmd's being
- * shared between address spaces.
- */
- for (i = 0; i < PTRS_PER_PGD; i++) {
- if (pgd_val_ma(xen_pgd[i]) & _PAGE_PRESENT) {
- pmd_t *pmd = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+ /*
+ * For PAE, need to allocate new pmds, rather than
+ * share Xen's, since Xen doesn't like pmd's being
+ * shared between address spaces.
+ */
+ for (i = 0; i < PTRS_PER_PGD; i++) {
+ if (pgd_val_ma(xen_pgd[i]) & _PAGE_PRESENT) {
+ pmd_t *pmd = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE);
- memcpy(pmd, (void *)pgd_page_vaddr(xen_pgd[i]),
- PAGE_SIZE);
+ memcpy(pmd, (void *)pgd_page_vaddr(xen_pgd[i]),
+ PAGE_SIZE);
- make_lowmem_page_readonly(pmd);
+ make_lowmem_page_readonly(pmd);
- set_pgd(&base[i], __pgd(1 + __pa(pmd)));
- } else
- pgd_clear(&base[i]);
- }
+ set_pgd(&base[i], __pgd(1 + __pa(pmd)));
+ } else
+ pgd_clear(&base[i]);
}
/* make sure zero_page is mapped RO so we can use it in pagetables */
/* Actually pin the pagetable down, but we can't set PG_pinned
yet because the page structures don't exist yet. */
- {
- unsigned level;
-
-#ifdef CONFIG_X86_PAE
- level = MMUEXT_PIN_L3_TABLE;
-#else
- level = MMUEXT_PIN_L2_TABLE;
-#endif
-
- pin_pagetable_pfn(level, PFN_DOWN(__pa(base)));
- }
+ pin_pagetable_pfn(MMUEXT_PIN_L3_TABLE, PFN_DOWN(__pa(base)));
}
/* This is called once we have the cpu_possible_map */
.make_pte = xen_make_pte,
.make_pgd = xen_make_pgd,
-#ifdef CONFIG_X86_PAE
.set_pte_atomic = xen_set_pte_atomic,
.set_pte_present = xen_set_pte_at,
.set_pud = xen_set_pud,
.make_pmd = xen_make_pmd,
.pmd_val = xen_pmd_val,
-#endif /* PAE */
.activate_mm = xen_activate_mm,
.dup_mmap = xen_dup_mmap,
.smp_send_stop = xen_smp_send_stop,
.smp_send_reschedule = xen_smp_send_reschedule,
- .smp_call_function_mask = xen_smp_call_function_mask,
+
+ .send_call_func_ipi = xen_smp_send_call_function_ipi,
+ .send_call_func_single_ipi = xen_smp_send_call_function_single_ipi,
};
#endif /* CONFIG_SMP */
if (xen_feature(XENFEAT_supervisor_mode_kernel))
pv_info.kernel_rpl = 0;
+ /* Prevent unwanted bits from being set in PTEs. */
+ __supported_pte_mask &= ~_PAGE_GLOBAL;
+ if (!is_initial_xendomain())
+ __supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD);
+
/* set the limit of our address space */
xen_reserve_top();