#include <xen/hvc-console.h>
#include <asm/paravirt.h>
+#include <asm/apic.h>
#include <asm/page.h>
#include <asm/xen/hypercall.h>
#include <asm/xen/hypervisor.h>
*
* 0: not available, 1: available
*/
-static int have_vcpu_info_placement = 1;
+static int have_vcpu_info_placement =
+#ifdef CONFIG_X86_32
+ 1
+#else
+ 0
+#endif
+ ;
+
static void xen_vcpu_setup(int cpu)
{
}
#ifdef CONFIG_X86_LOCAL_APIC
-static u32 xen_apic_read(unsigned long reg)
+static u32 xen_apic_read(u32 reg)
{
return 0;
}
-static void xen_apic_write(unsigned long reg, u32 val)
+static void xen_apic_write(u32 reg, u32 val)
{
/* Warn to see if there's any stray references */
WARN_ON(1);
}
+
+static u64 xen_apic_icr_read(void)
+{
+ return 0;
+}
+
+static void xen_apic_icr_write(u32 low, u32 id)
+{
+ /* Warn to see if there's any stray references */
+ WARN_ON(1);
+}
+
+static void xen_apic_wait_icr_idle(void)
+{
+ return;
+}
+
+static u32 xen_safe_apic_wait_icr_idle(void)
+{
+ return 0;
+}
+
+static struct apic_ops xen_basic_apic_ops = {
+ .read = xen_apic_read,
+ .write = xen_apic_write,
+ .icr_read = xen_apic_icr_read,
+ .icr_write = xen_apic_icr_write,
+ .wait_icr_idle = xen_apic_wait_icr_idle,
+ .safe_wait_icr_idle = xen_safe_apic_wait_icr_idle,
+};
+
#endif
static void xen_flush_tlb(void)
/* Early in boot, while setting up the initial pagetable, assume
everything is pinned. */
-static __init void xen_alloc_pte_init(struct mm_struct *mm, u32 pfn)
+static __init void xen_alloc_pte_init(struct mm_struct *mm, unsigned long pfn)
{
#ifdef CONFIG_FLATMEM
BUG_ON(mem_map); /* should only be used early */
/* Early release_pte assumes that all pts are pinned, since there's
only init_mm and anything attached to that is pinned. */
-static void xen_release_pte_init(u32 pfn)
+static void xen_release_pte_init(unsigned long pfn)
{
make_lowmem_page_readwrite(__va(PFN_PHYS(pfn)));
}
/* This needs to make sure the new pte page is pinned iff its being
attached to a pinned pagetable. */
-static void xen_alloc_ptpage(struct mm_struct *mm, u32 pfn, unsigned level)
+static void xen_alloc_ptpage(struct mm_struct *mm, unsigned long pfn, unsigned level)
{
struct page *page = pfn_to_page(pfn);
/* make sure there are no stray mappings of
this page */
kmap_flush_unused();
+ vm_unmap_aliases();
}
}
-static void xen_alloc_pte(struct mm_struct *mm, u32 pfn)
+static void xen_alloc_pte(struct mm_struct *mm, unsigned long pfn)
{
xen_alloc_ptpage(mm, pfn, PT_PTE);
}
-static void xen_alloc_pmd(struct mm_struct *mm, u32 pfn)
+static void xen_alloc_pmd(struct mm_struct *mm, unsigned long pfn)
{
xen_alloc_ptpage(mm, pfn, PT_PMD);
}
}
/* This should never happen until we're OK to use struct page */
-static void xen_release_ptpage(u32 pfn, unsigned level)
+static void xen_release_ptpage(unsigned long pfn, unsigned level)
{
struct page *page = pfn_to_page(pfn);
}
}
-static void xen_release_pte(u32 pfn)
+static void xen_release_pte(unsigned long pfn)
{
xen_release_ptpage(pfn, PT_PTE);
}
-static void xen_release_pmd(u32 pfn)
+static void xen_release_pmd(unsigned long pfn)
{
xen_release_ptpage(pfn, PT_PMD);
}
#if PAGETABLE_LEVELS == 4
-static void xen_alloc_pud(struct mm_struct *mm, u32 pfn)
+static void xen_alloc_pud(struct mm_struct *mm, unsigned long pfn)
{
xen_alloc_ptpage(mm, pfn, PT_PUD);
}
-static void xen_release_pud(u32 pfn)
+static void xen_release_pud(unsigned long pfn)
{
xen_release_ptpage(pfn, PT_PUD);
}
}
#endif
+#ifdef CONFIG_X86_32
static __init pte_t mask_rw_pte(pte_t *ptep, pte_t pte)
{
/* If there's an existing pte, then don't allow _PAGE_RW to be set */
xen_set_pte(ptep, pte);
}
+#endif
static __init void xen_pagetable_setup_start(pgd_t *base)
{
/* xen_vcpu_setup managed to place the vcpu_info within the
percpu area for all cpus, so make use of it */
-#ifdef CONFIG_X86_32
if (have_vcpu_info_placement) {
printk(KERN_INFO "Xen: using vcpu_info placement\n");
pv_irq_ops.irq_enable = xen_irq_enable_direct;
pv_mmu_ops.read_cr2 = xen_read_cr2_direct;
}
-#endif
}
static unsigned xen_patch(u8 type, u16 clobbers, void *insnbuf,
goto patch_site
switch (type) {
-#ifdef CONFIG_X86_32
SITE(pv_irq_ops, irq_enable);
SITE(pv_irq_ops, irq_disable);
SITE(pv_irq_ops, save_fl);
SITE(pv_irq_ops, restore_fl);
-#endif /* CONFIG_X86_32 */
#undef SITE
patch_site:
static const struct pv_apic_ops xen_apic_ops __initdata = {
#ifdef CONFIG_X86_LOCAL_APIC
- .apic_write = xen_apic_write,
- .apic_read = xen_apic_read,
.setup_boot_clock = paravirt_nop,
.setup_secondary_clock = paravirt_nop,
.startup_ipi_hook = paravirt_nop,
if (HYPERVISOR_xen_version(XENVER_platform_parameters, &pp) == 0)
top = pp.virt_start;
- reserve_top_address(-top + 2 * PAGE_SIZE);
+ reserve_top_address(-top);
#endif /* CONFIG_X86_32 */
}
return __ka(m2p(maddr));
}
-#ifdef CONFIG_X86_64
-static void walk(pgd_t *pgd, unsigned long addr)
-{
- unsigned l4idx = pgd_index(addr);
- unsigned l3idx = pud_index(addr);
- unsigned l2idx = pmd_index(addr);
- unsigned l1idx = pte_index(addr);
- pgd_t l4;
- pud_t l3;
- pmd_t l2;
- pte_t l1;
-
- xen_raw_printk("walk %p, %lx -> %d %d %d %d\n",
- pgd, addr, l4idx, l3idx, l2idx, l1idx);
-
- l4 = pgd[l4idx];
- xen_raw_printk(" l4: %016lx\n", l4.pgd);
- xen_raw_printk(" %016lx\n", pgd_val(l4));
-
- l3 = ((pud_t *)(m2v(l4.pgd)))[l3idx];
- xen_raw_printk(" l3: %016lx\n", l3.pud);
- xen_raw_printk(" %016lx\n", pud_val(l3));
-
- l2 = ((pmd_t *)(m2v(l3.pud)))[l2idx];
- xen_raw_printk(" l2: %016lx\n", l2.pmd);
- xen_raw_printk(" %016lx\n", pmd_val(l2));
-
- l1 = ((pte_t *)(m2v(l2.pmd)))[l1idx];
- xen_raw_printk(" l1: %016lx\n", l1.pte);
- xen_raw_printk(" %016lx\n", pte_val(l1));
-}
-#endif
-
static void set_page_prot(void *addr, pgprot_t prot)
{
unsigned long pfn = __pa(addr) >> PAGE_SHIFT;
pte_t pte = pfn_pte(pfn, prot);
- xen_raw_printk("addr=%p pfn=%lx mfn=%lx prot=%016llx pte=%016llx\n",
- addr, pfn, get_phys_to_machine(pfn),
- pgprot_val(prot), pte.pte);
-
if (HYPERVISOR_update_va_mapping((unsigned long)addr, pte, 0))
BUG();
}
xen_init_irq_ops();
+#ifdef CONFIG_X86_LOCAL_APIC
+ /*
+ * set up the basic apic ops.
+ */
+ apic_ops = &xen_basic_apic_ops;
+#endif
+
if (xen_feature(XENFEAT_mmu_pt_update_preserve_ad)) {
pv_mmu_ops.ptep_modify_prot_start = xen_ptep_modify_prot_start;
pv_mmu_ops.ptep_modify_prot_commit = xen_ptep_modify_prot_commit;
xen_raw_console_write("about to get started...\n");
-#if 0
- xen_raw_printk("&boot_params=%p __pa(&boot_params)=%lx __va(__pa(&boot_params))=%lx\n",
- &boot_params, __pa_symbol(&boot_params),
- __va(__pa_symbol(&boot_params)));
-
- walk(pgd, &boot_params);
- walk(pgd, __va(__pa(&boot_params)));
-#endif
-
/* Start the world */
#ifdef CONFIG_X86_32
i386_start_kernel();
projects / linux-2.6-omap-h63xx.git / blobdiff