Jeremy Fitzhardinge
2009-Mar-23 17:45 UTC
[Xen-devel] [GIT PULL] core Xen updates for 2.6.30
This series updates core domU Xen support.
Changes since last posting:
* rebased to newer tip/master
* addressed hpa''s review comments
* little cleanups
Thanks,
J
The following changes since commit 8d336ed83a87149bcae6b872fff1aed8be268342:
Jeremy Fitzhardinge (1):
x86/paravirt: use percpu_ rather than __get_cpu_var
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git push2/xen/core
Alex Nixon (1):
Xen: Add virt_to_pfn helper function
Hannes Eder (1):
NULL noise: arch/x86/xen/smp.c
Jeremy Fitzhardinge (15):
xen: disable preempt for leave_lazy_mmu
xen: separate p2m allocation from setting
xen: dynamically allocate p2m tables
xen: split construction of p2m mfn tables from registration
xen: clean up xen_load_gdt
xen: make xen_load_gdt simpler
xen: remove xen_load_gdt debug
xen: reserve i386 Xen pagetables
xen: mask XSAVE from cpuid
xen: add FIX_TEXT_POKE to fixmap
x86-64: remove PGE from must-have feature list
x86-64: non-paravirt systems always has PSE and PGE
xen/mmu: some early pagetable cleanups
Revert "x86: create a non-zero sized bm_pte only when needed"
xen/mmu: weaken flush_tlb_other test
arch/x86/include/asm/required-features.h | 8 ++-
arch/x86/include/asm/xen/page.h | 3 +-
arch/x86/mm/ioremap.c | 19 +---
arch/x86/xen/enlighten.c | 76 +++++++++++---
arch/x86/xen/mmu.c | 160 ++++++++++++++++++++++--------
arch/x86/xen/mmu.h | 3 +
arch/x86/xen/smp.c | 4 +-
arch/x86/xen/xen-ops.h | 2 -
8 files changed, 196 insertions(+), 79 deletions(-)
diff --git a/arch/x86/include/asm/required-features.h
b/arch/x86/include/asm/required-features.h
index d5cd6c5..64cf2d2 100644
--- a/arch/x86/include/asm/required-features.h
+++ b/arch/x86/include/asm/required-features.h
@@ -48,9 +48,15 @@
#endif
#ifdef CONFIG_X86_64
+#ifdef CONFIG_PARAVIRT
+/* Paravirtualized systems may not have PSE or PGE available */
#define NEED_PSE 0
+#define NEED_PGE 0
+#else
+#define NEED_PSE (1<<(X86_FEATURE_PSE) & 31)
+#define NEED_PGE (1<<(X86_FEATURE_PGE) & 31)
+#endif
#define NEED_MSR (1<<(X86_FEATURE_MSR & 31))
-#define NEED_PGE (1<<(X86_FEATURE_PGE & 31))
#define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31))
#define NEED_XMM (1<<(X86_FEATURE_XMM & 31))
#define NEED_XMM2 (1<<(X86_FEATURE_XMM2 & 31))
diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
index 1a918dd..018a0a4 100644
--- a/arch/x86/include/asm/xen/page.h
+++ b/arch/x86/include/asm/xen/page.h
@@ -124,7 +124,8 @@ static inline unsigned long mfn_to_local_pfn(unsigned long
mfn)
/* VIRT <-> MACHINE conversion */
#define virt_to_machine(v) (phys_to_machine(XPADDR(__pa(v))))
-#define virt_to_mfn(v) (pfn_to_mfn(PFN_DOWN(__pa(v))))
+#define virt_to_pfn(v) (PFN_DOWN(__pa(v)))
+#define virt_to_mfn(v) (pfn_to_mfn(virt_to_pfn(v)))
#define mfn_to_virt(m) (__va(mfn_to_pfn(m) << PAGE_SHIFT))
static inline unsigned long pte_mfn(pte_t pte)
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 55e127f..83ed74a 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -487,12 +487,7 @@ static int __init early_ioremap_debug_setup(char *str)
early_param("early_ioremap_debug", early_ioremap_debug_setup);
static __initdata int after_paging_init;
-#define __FIXADDR_TOP (-PAGE_SIZE)
-static pte_t bm_pte[(__fix_to_virt(FIX_DBGP_BASE)
- ^ __fix_to_virt(FIX_BTMAP_BEGIN)) >> PMD_SHIFT
- ? PAGE_SIZE / sizeof(pte_t) : 0] __page_aligned_bss;
-#undef __FIXADDR_TOP
-static __initdata pte_t *bm_ptep;
+static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
{
@@ -507,8 +502,6 @@ static inline pmd_t * __init early_ioremap_pmd(unsigned long
addr)
static inline pte_t * __init early_ioremap_pte(unsigned long addr)
{
- if (!sizeof(bm_pte))
- return &bm_ptep[pte_index(addr)];
return &bm_pte[pte_index(addr)];
}
@@ -526,14 +519,8 @@ void __init early_ioremap_init(void)
slot_virt[i] = fix_to_virt(FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*i);
pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN));
- if (sizeof(bm_pte)) {
- memset(bm_pte, 0, sizeof(bm_pte));
- pmd_populate_kernel(&init_mm, pmd, bm_pte);
- } else {
- bm_ptep = pte_offset_kernel(pmd, 0);
- if (early_ioremap_debug)
- printk(KERN_INFO "bm_ptep=%p\n", bm_ptep);
- }
+ memset(bm_pte, 0, sizeof(bm_pte));
+ pmd_populate_kernel(&init_mm, pmd, bm_pte);
/*
* The boot-ioremap range spans multiple pmds, for which
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 70b355d..da33e0c 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -168,21 +168,23 @@ static void __init xen_banner(void)
xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? "
(preserve-AD)" : "");
}
+static __read_mostly unsigned int cpuid_leaf1_edx_mask = ~0;
+static __read_mostly unsigned int cpuid_leaf1_ecx_mask = ~0;
+
static void xen_cpuid(unsigned int *ax, unsigned int *bx,
unsigned int *cx, unsigned int *dx)
{
+ unsigned maskecx = ~0;
unsigned maskedx = ~0;
/*
* Mask out inconvenient features, to try and disable as many
* unsupported kernel subsystems as possible.
*/
- if (*ax == 1)
- maskedx = ~((1 << X86_FEATURE_APIC) | /* disable APIC */
- (1 << X86_FEATURE_ACPI) | /* disable ACPI */
- (1 << X86_FEATURE_MCE) | /* disable MCE */
- (1 << X86_FEATURE_MCA) | /* disable MCA */
- (1 << X86_FEATURE_ACC)); /* thermal monitoring */
+ if (*ax == 1) {
+ maskecx = cpuid_leaf1_ecx_mask;
+ maskedx = cpuid_leaf1_edx_mask;
+ }
asm(XEN_EMULATE_PREFIX "cpuid"
: "=a" (*ax),
@@ -190,9 +192,43 @@ static void xen_cpuid(unsigned int *ax, unsigned int *bx,
"=c" (*cx),
"=d" (*dx)
: "0" (*ax), "2" (*cx));
+
+ *cx &= maskecx;
*dx &= maskedx;
}
+static __init void xen_init_cpuid_mask(void)
+{
+ unsigned int ax, bx, cx, dx;
+
+ cpuid_leaf1_edx_mask + ~((1 << X86_FEATURE_MCE) | /* disable MCE */
+ (1 << X86_FEATURE_MCA) | /* disable MCA */
+ (1 << X86_FEATURE_ACC)); /* thermal monitoring */
+
+ if (!xen_initial_domain())
+ cpuid_leaf1_edx_mask &+ ~((1 << X86_FEATURE_APIC) | /* disable
local APIC */
+ (1 << X86_FEATURE_ACPI)); /* disable ACPI */
+
+ ax = 1;
+ xen_cpuid(&ax, &bx, &cx, &dx);
+
+ /* cpuid claims we support xsave; try enabling it to see what happens */
+ if (cx & (1 << (X86_FEATURE_XSAVE % 32))) {
+ unsigned long cr4;
+
+ set_in_cr4(X86_CR4_OSXSAVE);
+
+ cr4 = read_cr4();
+
+ if ((cr4 & X86_CR4_OSXSAVE) == 0)
+ cpuid_leaf1_ecx_mask &= ~(1 << (X86_FEATURE_XSAVE % 32));
+
+ clear_in_cr4(X86_CR4_OSXSAVE);
+ }
+}
+
static void xen_set_debugreg(int reg, unsigned long val)
{
HYPERVISOR_set_debugreg(reg, val);
@@ -284,12 +320,11 @@ static void xen_set_ldt(const void *addr, unsigned
entries)
static void xen_load_gdt(const struct desc_ptr *dtr)
{
- unsigned long *frames;
unsigned long va = dtr->address;
unsigned int size = dtr->size + 1;
unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
+ unsigned long frames[pages];
int f;
- struct multicall_space mcs;
/* A GDT can be up to 64k in size, which corresponds to 8192
8-byte entries, or 16 4k pages.. */
@@ -297,19 +332,26 @@ static void xen_load_gdt(const struct desc_ptr *dtr)
BUG_ON(size > 65536);
BUG_ON(va & ~PAGE_MASK);
- mcs = xen_mc_entry(sizeof(*frames) * pages);
- frames = mcs.args;
-
for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) {
- frames[f] = arbitrary_virt_to_mfn((void *)va);
+ int level;
+ pte_t *ptep = lookup_address(va, &level);
+ unsigned long pfn, mfn;
+ void *virt;
+
+ BUG_ON(ptep == NULL);
+
+ pfn = pte_pfn(*ptep);
+ mfn = pfn_to_mfn(pfn);
+ virt = __va(PFN_PHYS(pfn));
+
+ frames[f] = mfn;
make_lowmem_page_readonly((void *)va);
- make_lowmem_page_readonly(mfn_to_virt(frames[f]));
+ make_lowmem_page_readonly(virt);
}
- MULTI_set_gdt(mcs.mc, frames, size / sizeof(struct desc_struct));
-
- xen_mc_issue(PARAVIRT_LAZY_CPU);
+ if (HYPERVISOR_set_gdt(frames, size / sizeof(struct desc_struct)))
+ BUG();
}
static void load_TLS_descriptor(struct thread_struct *t,
@@ -895,6 +937,8 @@ asmlinkage void __init xen_start_kernel(void)
xen_init_irq_ops();
+ xen_init_cpuid_mask();
+
#ifdef CONFIG_X86_LOCAL_APIC
/*
* set up the basic apic ops.
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index e194f72..aa16ef4 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -159,18 +159,14 @@ DEFINE_PER_CPU(unsigned long, xen_current_cr3); /* actual
vcpu cr3 */
#define TOP_ENTRIES (MAX_DOMAIN_PAGES / P2M_ENTRIES_PER_PAGE)
/* Placeholder for holes in the address space */
-static unsigned long p2m_missing[P2M_ENTRIES_PER_PAGE] __page_aligned_data - {
[ 0 ... P2M_ENTRIES_PER_PAGE-1 ] = ~0UL };
+static unsigned long *p2m_missing;
/* Array of pointers to pages containing p2m entries */
-static unsigned long *p2m_top[TOP_ENTRIES] __page_aligned_data - { [ 0 ...
TOP_ENTRIES - 1] = &p2m_missing[0] };
+static unsigned long **p2m_top;
/* Arrays of p2m arrays expressed in mfns used for save/restore */
-static unsigned long p2m_top_mfn[TOP_ENTRIES] __page_aligned_bss;
-
-static unsigned long p2m_top_mfn_list[TOP_ENTRIES / P2M_ENTRIES_PER_PAGE]
- __page_aligned_bss;
+static unsigned long *p2m_top_mfn;
+static unsigned long *p2m_top_mfn_list;
static inline unsigned p2m_top_index(unsigned long pfn)
{
@@ -183,22 +179,35 @@ static inline unsigned p2m_index(unsigned long pfn)
return pfn % P2M_ENTRIES_PER_PAGE;
}
+#define SIZE_TOP_MFN sizeof(*p2m_top_mfn) * TOP_ENTRIES
+#define SIZE_TOP_MFN_LIST sizeof(*p2m_top_mfn_list) * \
+ (TOP_ENTRIES / P2M_ENTRIES_PER_PAGE)
+
+RESERVE_BRK(xen_top_mfn, SIZE_TOP_MFN);
+RESERVE_BRK(xen_top_mfn_list, SIZE_TOP_MFN_LIST);
+
/* 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;
+ p2m_top_mfn = extend_brk(SIZE_TOP_MFN, PAGE_SIZE);
+ p2m_top_mfn_list = extend_brk(SIZE_TOP_MFN_LIST, PAGE_SIZE);
+
for (pfn = 0; pfn < MAX_DOMAIN_PAGES; pfn += P2M_ENTRIES_PER_PAGE) {
unsigned topidx = p2m_top_index(pfn);
p2m_top_mfn[topidx] = virt_to_mfn(p2m_top[topidx]);
}
- for (idx = 0; idx < ARRAY_SIZE(p2m_top_mfn_list); idx++) {
+ for (idx = 0; idx < (TOP_ENTRIES / P2M_ENTRIES_PER_PAGE); idx++) {
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 @@ -206,18 +215,34
@@ void xen_setup_mfn_list_list(void)
HYPERVISOR_shared_info->arch.max_pfn = xen_start_info->nr_pages;
}
+#define SIZE_P2M_MISSING sizeof(*p2m_missing) * P2M_ENTRIES_PER_PAGE
+#define SIZE_P2M_TOP sizeof(*p2m_top) * TOP_ENTRIES
+RESERVE_BRK(xen_p2m_missing, SIZE_P2M_MISSING);
+RESERVE_BRK(xen_p2m_top, SIZE_P2M_TOP);
+
/* Set up p2m_top to point to the domain-builder provided p2m pages */
void __init xen_build_dynamic_phys_to_machine(void)
{
unsigned long *mfn_list = (unsigned long *)xen_start_info->mfn_list;
unsigned long max_pfn = min(MAX_DOMAIN_PAGES, xen_start_info->nr_pages);
unsigned pfn;
+ unsigned i;
+
+ p2m_missing = extend_brk(SIZE_P2M_MISSING, PAGE_SIZE);
+ for(i = 0; i < P2M_ENTRIES_PER_PAGE; i++)
+ p2m_missing[i] = ~0ul;
+
+ p2m_top = extend_brk(SIZE_P2M_TOP, PAGE_SIZE);
+ for(i = 0; i < TOP_ENTRIES; i++)
+ p2m_top[i] = p2m_missing;
for (pfn = 0; pfn < max_pfn; pfn += P2M_ENTRIES_PER_PAGE) {
unsigned topidx = p2m_top_index(pfn);
p2m_top[topidx] = &mfn_list[pfn];
}
+
+ xen_build_mfn_list_list();
}
unsigned long get_phys_to_machine(unsigned long pfn)
@@ -233,47 +258,74 @@ unsigned long get_phys_to_machine(unsigned long pfn)
}
EXPORT_SYMBOL_GPL(get_phys_to_machine);
-static void alloc_p2m(unsigned long **pp, unsigned long *mfnp)
+/* install a new p2m_top page */
+bool install_p2mtop_page(unsigned long pfn, unsigned long *p)
{
- unsigned long *p;
+ unsigned topidx = p2m_top_index(pfn);
+ unsigned long **pfnp, *mfnp;
unsigned i;
- p = (void *)__get_free_page(GFP_KERNEL | __GFP_NOFAIL);
- BUG_ON(p == NULL);
+ pfnp = &p2m_top[topidx];
+ mfnp = &p2m_top_mfn[topidx];
for (i = 0; i < P2M_ENTRIES_PER_PAGE; i++)
p[i] = INVALID_P2M_ENTRY;
- if (cmpxchg(pp, p2m_missing, p) != p2m_missing)
- free_page((unsigned long)p);
- else
+ if (cmpxchg(pfnp, p2m_missing, p) == p2m_missing) {
*mfnp = virt_to_mfn(p);
+ return true;
+ }
+
+ return false;
}
-void set_phys_to_machine(unsigned long pfn, unsigned long mfn)
+static void alloc_p2m(unsigned long pfn)
{
- unsigned topidx, idx;
+ unsigned long *p;
- if (unlikely(xen_feature(XENFEAT_auto_translated_physmap))) {
- BUG_ON(pfn != mfn && mfn != INVALID_P2M_ENTRY);
- return;
- }
+ p = (void *)__get_free_page(GFP_KERNEL | __GFP_NOFAIL);
+ BUG_ON(p == NULL);
+
+ if (!install_p2mtop_page(pfn, p))
+ free_page((unsigned long)p);
+}
+
+/* Try to install p2m mapping; fail if intermediate bits missing */
+bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn)
+{
+ unsigned topidx, idx;
if (unlikely(pfn >= MAX_DOMAIN_PAGES)) {
BUG_ON(mfn != INVALID_P2M_ENTRY);
- return;
+ return true;
}
topidx = p2m_top_index(pfn);
if (p2m_top[topidx] == p2m_missing) {
- /* no need to allocate a page to store an invalid entry */
if (mfn == INVALID_P2M_ENTRY)
- return;
- alloc_p2m(&p2m_top[topidx], &p2m_top_mfn[topidx]);
+ return true;
+ return false;
}
idx = p2m_index(pfn);
p2m_top[topidx][idx] = mfn;
+
+ return true;
+}
+
+void set_phys_to_machine(unsigned long pfn, unsigned long mfn)
+{
+ if (unlikely(xen_feature(XENFEAT_auto_translated_physmap))) {
+ BUG_ON(pfn != mfn && mfn != INVALID_P2M_ENTRY);
+ return;
+ }
+
+ if (unlikely(!__set_phys_to_machine(pfn, mfn))) {
+ alloc_p2m(pfn);
+
+ if (!__set_phys_to_machine(pfn, mfn))
+ BUG();
+ }
}
unsigned long arbitrary_virt_to_mfn(void *vaddr)
@@ -981,7 +1033,7 @@ static __init int xen_mark_pinned(struct mm_struct *mm,
struct page *page,
return 0;
}
-void __init xen_mark_init_mm_pinned(void)
+static void __init xen_mark_init_mm_pinned(void)
{
xen_pgd_walk(&init_mm, xen_mark_pinned, FIXADDR_TOP);
}
@@ -1261,8 +1313,8 @@ static void xen_flush_tlb_others(const struct cpumask
*cpus,
} *args;
struct multicall_space mcs;
- BUG_ON(cpumask_empty(cpus));
- BUG_ON(!mm);
+ if (cpumask_empty(cpus))
+ return; /* nothing to do */
mcs = xen_mc_entry(sizeof(*args));
args = mcs.args;
@@ -1429,6 +1481,15 @@ static __init void xen_set_pte_init(pte_t *ptep, pte_t
pte)
}
#endif
+static void pin_pagetable_pfn(unsigned cmd, unsigned long pfn)
+{
+ struct mmuext_op op;
+ op.cmd = cmd;
+ op.arg1.mfn = pfn_to_mfn(pfn);
+ if (HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF))
+ BUG();
+}
+
/* Early in boot, while setting up the initial pagetable, assume
everything is pinned. */
static __init void xen_alloc_pte_init(struct mm_struct *mm, unsigned long pfn)
@@ -1437,22 +1498,29 @@ static __init void xen_alloc_pte_init(struct mm_struct
*mm, unsigned long pfn)
BUG_ON(mem_map); /* should only be used early */
#endif
make_lowmem_page_readonly(__va(PFN_PHYS(pfn)));
+ pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE, pfn);
+}
+
+/* Used for pmd and pud */
+static __init void xen_alloc_pmd_init(struct mm_struct *mm, unsigned long pfn)
+{
+#ifdef CONFIG_FLATMEM
+ BUG_ON(mem_map); /* should only be used early */
+#endif
+ make_lowmem_page_readonly(__va(PFN_PHYS(pfn)));
}
/* 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(unsigned long pfn)
+static __init void xen_release_pte_init(unsigned long pfn)
{
+ pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, pfn);
make_lowmem_page_readwrite(__va(PFN_PHYS(pfn)));
}
-static void pin_pagetable_pfn(unsigned cmd, unsigned long pfn)
+static __init void xen_release_pmd_init(unsigned long pfn)
{
- struct mmuext_op op;
- op.cmd = cmd;
- op.arg1.mfn = pfn_to_mfn(pfn);
- if (HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF))
- BUG();
+ make_lowmem_page_readwrite(__va(PFN_PHYS(pfn)));
}
/* This needs to make sure the new pte page is pinned iff its being
@@ -1737,6 +1805,11 @@ __init pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd,
pin_pagetable_pfn(MMUEXT_PIN_L3_TABLE, PFN_DOWN(__pa(swapper_pg_dir)));
+ reserve_early(__pa(xen_start_info->pt_base),
+ __pa(xen_start_info->pt_base +
+ xen_start_info->nr_pt_frames * PAGE_SIZE),
+ "XEN PAGETABLES");
+
return swapper_pg_dir;
}
#endif /* CONFIG_X86_64 */
@@ -1764,6 +1837,9 @@ static void xen_set_fixmap(unsigned idx, unsigned long
phys, pgprot_t prot)
#ifdef CONFIG_X86_LOCAL_APIC
case FIX_APIC_BASE: /* maps dummy local APIC */
#endif
+ case FIX_TEXT_POKE0:
+ case FIX_TEXT_POKE1:
+ /* All local page mappings */
pte = pfn_pte(phys, prot);
break;
@@ -1812,8 +1888,10 @@ __init void xen_post_allocator_init(void)
static void xen_leave_lazy_mmu(void)
{
+ preempt_disable();
xen_mc_flush();
paravirt_leave_lazy_mmu();
+ preempt_enable();
}
const struct pv_mmu_ops xen_mmu_ops __initdata = {
@@ -1839,9 +1917,9 @@ const struct pv_mmu_ops xen_mmu_ops __initdata = {
.alloc_pte = xen_alloc_pte_init,
.release_pte = xen_release_pte_init,
- .alloc_pmd = xen_alloc_pte_init,
+ .alloc_pmd = xen_alloc_pmd_init,
.alloc_pmd_clone = paravirt_nop,
- .release_pmd = xen_release_pte_init,
+ .release_pmd = xen_release_pmd_init,
#ifdef CONFIG_HIGHPTE
.kmap_atomic_pte = xen_kmap_atomic_pte,
@@ -1879,8 +1957,8 @@ const struct pv_mmu_ops xen_mmu_ops __initdata = {
.make_pud = PV_CALLEE_SAVE(xen_make_pud),
.set_pgd = xen_set_pgd_hyper,
- .alloc_pud = xen_alloc_pte_init,
- .release_pud = xen_release_pte_init,
+ .alloc_pud = xen_alloc_pmd_init,
+ .release_pud = xen_release_pmd_init,
#endif /* PAGETABLE_LEVELS == 4 */
.activate_mm = xen_activate_mm,
diff --git a/arch/x86/xen/mmu.h b/arch/x86/xen/mmu.h
index 24d1b44..da73026 100644
--- a/arch/x86/xen/mmu.h
+++ b/arch/x86/xen/mmu.h
@@ -11,6 +11,9 @@ enum pt_level {
};
+bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn);
+bool install_p2mtop_page(unsigned long pfn, unsigned long *p);
+
void set_pte_mfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags);
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 585a6e3..429834e 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -317,7 +317,7 @@ static int __cpuinit xen_cpu_up(unsigned int cpu)
BUG_ON(rc);
while(per_cpu(cpu_state, cpu) != CPU_ONLINE) {
- HYPERVISOR_sched_op(SCHEDOP_yield, 0);
+ HYPERVISOR_sched_op(SCHEDOP_yield, NULL);
barrier();
}
@@ -422,7 +422,7 @@ static void xen_smp_send_call_function_ipi(const struct
cpumask *mask)
/* Make sure other vcpus get a chance to run if they need to. */
for_each_cpu(cpu, mask) {
if (xen_vcpu_stolen(cpu)) {
- HYPERVISOR_sched_op(SCHEDOP_yield, 0);
+ HYPERVISOR_sched_op(SCHEDOP_yield, NULL);
break;
}
}
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index f897cdf..5c50a10 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -56,8 +56,6 @@ irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
bool xen_vcpu_stolen(int vcpu);
-void xen_mark_init_mm_pinned(void);
-
void xen_setup_vcpu_info_placement(void);
#ifdef CONFIG_SMP
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