[git pull] x86 fixes

Ingo Molnar
2008-07-22T14:04:21Z

Linus,

Please pull the latest x86 fixes git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git x86-fixes-for-linus

Thanks,

Ingo

------------------>
Jan Kratochvil (1):
x86: fix crash due to missing debugctlmsr on AMD K6-3

Jeremy Fitzhardinge (2):
x86: rename PTE_MASK to PTE_PFN_MASK
x86: add PTE_FLAGS_MASK

Rusty Russell (1):
x86: fix pte_flags() to only return flags, fix lguest (updated)

Thomas Gleixner (1):
x86: move the last Dprintk instance to pr_debug()

Yinghai Lu (1):
x86: use setup_clear_cpu_cap with disable_apic, fix

arch/x86/Kconfig.cpu | 2 +-
arch/x86/kernel/paravirt.c | 2 +-
arch/x86/kernel/setup.c | 2 +-
arch/x86/mach-es7000/es7000plat.c | 8 ++++----
arch/x86/mm/dump_pagetables.c | 10 +++++-----
arch/x86/xen/enlighten.c | 2 +-
arch/x86/xen/mmu.c | 8 ++++----
include/asm-x86/page.h | 14 +++++++++++---
include/asm-x86/paravirt.h | 3 +++
include/asm-x86/pgtable-3level.h | 8 ++++----
include/asm-x86/pgtable.h | 4 ++--
include/asm-x86/pgtable_32.h | 4 ++--
include/asm-x86/pgtable_64.h | 10 +++++-----
include/asm-x86/xen/page.h | 2 +-
14 files changed, 45 insertions(+), 34 deletions(-)

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 54b8c02..2c518fb 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -414,4 +414,4 @@ config X86_MINIMUM_CPU_FAMILY

config X86_DEBUGCTLMSR
def_bool y
- depends on !(M586MMX || M586TSC || M586 || M486 || M386)
+ depends on !(MK6 || MWINCHIPC6 || MWINCHIP2 || MWINCHIP3D || MCYRIXIII || M586MMX || M586TSC || M586 || M486 || M386)
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 097d8a6..94da4d5 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -443,7 +443,7 @@ struct pv_mmu_ops pv_mmu_ops = {
#endif /* PAGETABLE_LEVELS >= 3 */

.pte_val = native_pte_val,
- .pte_flags = native_pte_val,
+ .pte_flags = native_pte_flags,
.pgd_val = native_pgd_val,

.make_pte = native_make_pte,
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index ec952aa..b4aacb9 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -680,7 +680,7 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_X86_LOCAL_APIC
disable_apic = 1;
#endif
- clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
+ setup_clear_cpu_cap(X86_FEATURE_APIC);
}

#ifdef CONFIG_PCI
diff --git a/arch/x86/mach-es7000/es7000plat.c b/arch/x86/mach-es7000/es7000plat.c
index 4354ce8..50189af 100644
--- a/arch/x86/mach-es7000/es7000plat.c
+++ b/arch/x86/mach-es7000/es7000plat.c
@@ -130,10 +130,10 @@ parse_unisys_oem (char *oemptr)
mip_addr = val;
mip = (struct mip_reg *)val;
mip_reg = __va(mip);
- Dprintk("es7000_mipcfg: host_reg = 0x%lx \n",
- (unsigned long)host_reg);
- Dprintk("es7000_mipcfg: mip_reg = 0x%lx \n",
- (unsigned long)mip_reg);
+ pr_debug("es7000_mipcfg: host_reg = 0x%lx \n",
+ (unsigned long)host_reg);
+ pr_debug("es7000_mipcfg: mip_reg = 0x%lx \n",
+ (unsigned long)mip_reg);
success++;
break;
case MIP_PSAI_REG:
diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
index 0bb0cae..a20d1fa 100644
--- a/arch/x86/mm/dump_pagetables.c
+++ b/arch/x86/mm/dump_pagetables.c
@@ -148,8 +148,8 @@ static void note_page(struct seq_file *m, struct pg_state *st,
* we have now. "break" is either changing perms, levels or
* address space marker.
*/
- prot = pgprot_val(new_prot) & ~(PTE_MASK);
- cur = pgprot_val(st->current_prot) & ~(PTE_MASK);
+ prot = pgprot_val(new_prot) & ~(PTE_PFN_MASK);
+ cur = pgprot_val(st->current_prot) & ~(PTE_PFN_MASK);

if (!st->level) {
/* First entry */
@@ -221,7 +221,7 @@ static void walk_pmd_level(struct seq_file *m, struct pg_state *st, pud_t addr,
for (i = 0; i < PTRS_PER_PMD; i++) {
st->current_address = normalize_addr(P + i * PMD_LEVEL_MULT);
if (!pmd_none(*start)) {
- pgprotval_t prot = pmd_val(*start) & ~PTE_MASK;
+ pgprotval_t prot = pmd_val(*start) & PTE_FLAGS_MASK;

if (pmd_large(*start) || !pmd_present(*start))
note_page(m, st, __pgprot(prot), 3);
@@ -253,7 +253,7 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st, pgd_t addr,
for (i = 0; i < PTRS_PER_PUD; i++) {
st->current_address = normalize_addr(P + i * PUD_LEVEL_MULT);
if (!pud_none(*start)) {
- pgprotval_t prot = pud_val(*start) & ~PTE_MASK;
+ pgprotval_t prot = pud_val(*start) & PTE_FLAGS_MASK;

if (pud_large(*start) || !pud_present(*start))
note_page(m, st, __pgprot(prot), 2);
@@ -288,7 +288,7 @@ static void walk_pgd_level(struct seq_file *m)
for (i = 0; i < PTRS_PER_PGD; i++) {
st.current_address = normalize_addr(i * PGD_LEVEL_MULT);
if (!pgd_none(*start)) {
- pgprotval_t prot = pgd_val(*start) & ~PTE_MASK;
+ pgprotval_t prot = pgd_val(*start) & PTE_FLAGS_MASK;

if (pgd_large(*start) || !pgd_present(*start))
note_page(m, &st, __pgprot(prot), 1);
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 194bbd6..9ff6e3c 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1435,7 +1435,7 @@ static unsigned long m2p(phys_addr_t maddr)
{
phys_addr_t paddr;

- maddr &= PTE_MASK;
+ maddr &= PTE_PFN_MASK;
paddr = mfn_to_pfn(maddr >> PAGE_SHIFT) << PAGE_SHIFT;

return paddr;
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index a44d56e..aa37469 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -343,8 +343,8 @@ void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
static pteval_t pte_mfn_to_pfn(pteval_t val)
{
if (val & _PAGE_PRESENT) {
- unsigned long mfn = (val & PTE_MASK) >> PAGE_SHIFT;
- pteval_t flags = val & ~PTE_MASK;
+ unsigned long mfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT;
+ pteval_t flags = val & PTE_FLAGS_MASK;
val = ((pteval_t)mfn_to_pfn(mfn) << PAGE_SHIFT) | flags;
}

@@ -354,8 +354,8 @@ static pteval_t pte_mfn_to_pfn(pteval_t val)
static pteval_t pte_pfn_to_mfn(pteval_t val)
{
if (val & _PAGE_PRESENT) {
- unsigned long pfn = (val & PTE_MASK) >> PAGE_SHIFT;
- pteval_t flags = val & ~PTE_MASK;
+ unsigned long pfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT;
+ pteval_t flags = val & PTE_FLAGS_MASK;
val = ((pteval_t)pfn_to_mfn(pfn) << PAGE_SHIFT) | flags;
}

diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h
index 28d7b45..6c84622 100644
--- a/include/asm-x86/page.h
+++ b/include/asm-x86/page.h
@@ -18,8 +18,11 @@
(ie, 32-bit PAE). */
#define PHYSICAL_PAGE_MASK (((signed long)PAGE_MASK) & __PHYSICAL_MASK)

-/* PTE_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */
-#define PTE_MASK ((pteval_t)PHYSICAL_PAGE_MASK)
+/* PTE_PFN_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */
+#define PTE_PFN_MASK ((pteval_t)PHYSICAL_PAGE_MASK)
+
+/* PTE_FLAGS_MASK extracts the flags from a (pte|pmd|pud|pgd)val_t */
+#define PTE_FLAGS_MASK (~PTE_PFN_MASK)

#define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT)
#define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1))
@@ -144,6 +147,11 @@ static inline pteval_t native_pte_val(pte_t pte)
return pte.pte;
}

+static inline pteval_t native_pte_flags(pte_t pte)
+{
+ return native_pte_val(pte) & PTE_FLAGS_MASK;
+}
+
#define pgprot_val(x) ((x).pgprot)
#define __pgprot(x) ((pgprot_t) { (x) } )

@@ -165,7 +173,7 @@ static inline pteval_t native_pte_val(pte_t pte)
#endif

#define pte_val(x) native_pte_val(x)
-#define pte_flags(x) native_pte_val(x)
+#define pte_flags(x) native_pte_flags(x)
#define __pte(x) native_make_pte(x)

#endif /* CONFIG_PARAVIRT */
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index aec9767..fbbde93 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -1088,6 +1088,9 @@ static inline pteval_t pte_flags(pte_t pte)
ret = PVOP_CALL1(pteval_t, pv_mmu_ops.pte_flags,
pte.pte);

+#ifdef CONFIG_PARAVIRT_DEBUG
+ BUG_ON(ret & PTE_PFN_MASK);
+#endif
return ret;
}

diff --git a/include/asm-x86/pgtable-3level.h b/include/asm-x86/pgtable-3level.h
index c93dbb6..105057f 100644
--- a/include/asm-x86/pgtable-3level.h
+++ b/include/asm-x86/pgtable-3level.h
@@ -25,7 +25,7 @@ static inline int pud_none(pud_t pud)

static inline int pud_bad(pud_t pud)
{
- return (pud_val(pud) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER)) != 0;
+ return (pud_val(pud) & ~(PTE_PFN_MASK | _KERNPG_TABLE | _PAGE_USER)) != 0;
}

static inline int pud_present(pud_t pud)
@@ -120,9 +120,9 @@ static inline void pud_clear(pud_t *pudp)
write_cr3(pgd);
}

-#define pud_page(pud) ((struct page *) __va(pud_val(pud) & PTE_MASK))
+#define pud_page(pud) ((struct page *) __va(pud_val(pud) & PTE_PFN_MASK))

-#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PTE_MASK))
+#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PTE_PFN_MASK))

/* Find an entry in the second-level page table.. */
@@ -160,7 +160,7 @@ static inline int pte_none(pte_t pte)

static inline unsigned long pte_pfn(pte_t pte)
{
- return (pte_val(pte) & PTE_MASK) >> PAGE_SHIFT;
+ return (pte_val(pte) & PTE_PFN_MASK) >> PAGE_SHIFT;
}

/*
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 96aa76e..3e5dbc4 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -53,7 +53,7 @@
_PAGE_DIRTY)

/* Set of bits not changed in pte_modify */
-#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_PCD | _PAGE_PWT | \
+#define _PAGE_CHG_MASK (PTE_PFN_MASK | _PAGE_PCD | _PAGE_PWT | \
_PAGE_ACCESSED | _PAGE_DIRTY)

#define _PAGE_CACHE_MASK (_PAGE_PCD | _PAGE_PWT)
@@ -286,7 +286,7 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
return __pgprot(preservebits | addbits);
}

-#define pte_pgprot(x) __pgprot(pte_flags(x) & ~PTE_MASK)
+#define pte_pgprot(x) __pgprot(pte_flags(x) & PTE_FLAGS_MASK)

#define canon_pgprot(p) __pgprot(pgprot_val(p) & __supported_pte_mask)

diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h
index 0611abf..5c3b265 100644
--- a/include/asm-x86/pgtable_32.h
+++ b/include/asm-x86/pgtable_32.h
@@ -88,7 +88,7 @@ extern unsigned long pg0[];
/* To avoid harmful races, pmd_none(x) should check only the lower when PAE */
#define pmd_none(x) (!(unsigned long)pmd_val((x)))
#define pmd_present(x) (pmd_val((x)) & _PAGE_PRESENT)
-#define pmd_bad(x) ((pmd_val(x) & (~PTE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
+#define pmd_bad(x) ((pmd_val(x) & (PTE_FLAGS_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)

#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))

@@ -139,7 +139,7 @@ static inline int pud_large(pud_t pud) { return 0; }
#define pmd_page(pmd) (pfn_to_page(pmd_val((pmd)) >> PAGE_SHIFT))

#define pmd_page_vaddr(pmd) \
- ((unsigned long)__va(pmd_val((pmd)) & PTE_MASK))
+ ((unsigned long)__va(pmd_val((pmd)) & PTE_PFN_MASK))

#if defined(CONFIG_HIGHPTE)
#define pte_offset_map(dir, address) \
diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h
index 805d312..ac5fff4 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -158,17 +158,17 @@ static inline void native_pgd_clear(pgd_t *pgd)

static inline int pgd_bad(pgd_t pgd)
{
- return (pgd_val(pgd) & ~(PTE_MASK | _PAGE_USER)) != _KERNPG_TABLE;
+ return (pgd_val(pgd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
}

static inline int pud_bad(pud_t pud)
{
- return (pud_val(pud) & ~(PTE_MASK | _PAGE_USER)) != _KERNPG_TABLE;
+ return (pud_val(pud) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
}

static inline int pmd_bad(pmd_t pmd)
{
- return (pmd_val(pmd) & ~(PTE_MASK | _PAGE_USER)) != _KERNPG_TABLE;
+ return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
}

#define pte_none(x) (!pte_val((x)))
@@ -193,7 +193,7 @@ static inline int pmd_bad(pmd_t pmd)
* Level 4 access.
*/
#define pgd_page_vaddr(pgd) \
- ((unsigned long)__va((unsigned long)pgd_val((pgd)) & PTE_MASK))
+ ((unsigned long)__va((unsigned long)pgd_val((pgd)) & PTE_PFN_MASK))
#define pgd_page(pgd) (pfn_to_page(pgd_val((pgd)) >> PAGE_SHIFT))
#define pgd_present(pgd) (pgd_val(pgd) & _PAGE_PRESENT)
static inline int pgd_large(pgd_t pgd) { return 0; }
@@ -216,7 +216,7 @@ static inline int pud_large(pud_t pte)
}

/* PMD - Level 2 access */
-#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val((pmd)) & PTE_MASK))
+#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val((pmd)) & PTE_PFN_MASK))
#define pmd_page(pmd) (pfn_to_page(pmd_val((pmd)) >> PAGE_SHIFT))

#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))
diff --git a/include/asm-x86/xen/page.h b/include/asm-x86/xen/page.h
index 05e678a..7b3835d 100644
--- a/include/asm-x86/xen/page.h
+++ b/include/asm-x86/xen/page.h
@@ -124,7 +124,7 @@ static inline unsigned long mfn_to_local_pfn(unsigned long mfn)

static inline unsigned long pte_mfn(pte_t pte)
{
- return (pte.pte & PTE_MASK) >> PAGE_SHIFT;
+ return (pte.pte & PTE_PFN_MASK) >> PAGE_SHIFT;
}

static inline pte_t mfn_pte(unsigned long page_nr, pgprot_t pgprot)