aboutsummaryrefslogtreecommitdiff
path: root/include/asm-x86
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-x86')
-rw-r--r--include/asm-x86/geode.h4
-rw-r--r--include/asm-x86/i387.h2
-rw-r--r--include/asm-x86/kvm_host.h4
-rw-r--r--include/asm-x86/kvm_para.h18
-rw-r--r--include/asm-x86/kvm_x86_emulate.h1
-rw-r--r--include/asm-x86/msr.h2
-rw-r--r--include/asm-x86/page.h15
-rw-r--r--include/asm-x86/page_32.h3
-rw-r--r--include/asm-x86/pgtable-3level.h6
-rw-r--r--include/asm-x86/pgtable.h3
-rw-r--r--include/asm-x86/pgtable_32.h4
-rw-r--r--include/asm-x86/pgtable_64.h12
-rw-r--r--include/asm-x86/pvclock-abi.h42
-rw-r--r--include/asm-x86/pvclock.h13
-rw-r--r--include/asm-x86/tlbflush.h13
-rw-r--r--include/asm-x86/xen/page.h6
16 files changed, 102 insertions, 46 deletions
diff --git a/include/asm-x86/geode.h b/include/asm-x86/geode.h
index 6e6458853a3..bb06027fc83 100644
--- a/include/asm-x86/geode.h
+++ b/include/asm-x86/geode.h
@@ -112,8 +112,8 @@ extern int geode_get_dev_base(unsigned int dev);
#define VSA_VR_UNLOCK 0xFC53 /* unlock virtual register */
#define VSA_VR_SIGNATURE 0x0003
#define VSA_VR_MEM_SIZE 0x0200
-#define VSA_SIG 0x4132 /* signature is ascii 'VSA2' */
-
+#define AMD_VSA_SIG 0x4132 /* signature is ascii 'VSA2' */
+#define GSW_VSA_SIG 0x534d /* General Software signature */
/* GPIO */
#define GPIO_OUTPUT_VAL 0x00
diff --git a/include/asm-x86/i387.h b/include/asm-x86/i387.h
index 6b722d31593..37672f79dcc 100644
--- a/include/asm-x86/i387.h
+++ b/include/asm-x86/i387.h
@@ -193,6 +193,8 @@ static inline int restore_i387(struct _fpstate __user *buf)
#else /* CONFIG_X86_32 */
+extern void finit(void);
+
static inline void tolerant_fwait(void)
{
asm volatile("fnclex ; fwait");
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index 1d8cd01fa51..844f2a89afb 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -18,6 +18,7 @@
#include <linux/kvm_para.h>
#include <linux/kvm_types.h>
+#include <asm/pvclock-abi.h>
#include <asm/desc.h>
#define KVM_MAX_VCPUS 16
@@ -282,7 +283,8 @@ struct kvm_vcpu_arch {
struct x86_emulate_ctxt emulate_ctxt;
gpa_t time;
- struct kvm_vcpu_time_info hv_clock;
+ struct pvclock_vcpu_time_info hv_clock;
+ unsigned int hv_clock_tsc_khz;
unsigned int time_offset;
struct page *time_page;
};
diff --git a/include/asm-x86/kvm_para.h b/include/asm-x86/kvm_para.h
index 50984594207..bfd9900742b 100644
--- a/include/asm-x86/kvm_para.h
+++ b/include/asm-x86/kvm_para.h
@@ -48,24 +48,6 @@ struct kvm_mmu_op_release_pt {
#ifdef __KERNEL__
#include <asm/processor.h>
-/* xen binary-compatible interface. See xen headers for details */
-struct kvm_vcpu_time_info {
- uint32_t version;
- uint32_t pad0;
- uint64_t tsc_timestamp;
- uint64_t system_time;
- uint32_t tsc_to_system_mul;
- int8_t tsc_shift;
- int8_t pad[3];
-} __attribute__((__packed__)); /* 32 bytes */
-
-struct kvm_wall_clock {
- uint32_t wc_version;
- uint32_t wc_sec;
- uint32_t wc_nsec;
-} __attribute__((__packed__));
-
-
extern void kvmclock_init(void);
diff --git a/include/asm-x86/kvm_x86_emulate.h b/include/asm-x86/kvm_x86_emulate.h
index d6337f941c9..b877bbd2d3a 100644
--- a/include/asm-x86/kvm_x86_emulate.h
+++ b/include/asm-x86/kvm_x86_emulate.h
@@ -135,6 +135,7 @@ struct decode_cache {
u8 modrm_rm;
u8 use_modrm_ea;
unsigned long modrm_ea;
+ void *modrm_ptr;
unsigned long modrm_val;
struct fetch_cache fetch;
};
diff --git a/include/asm-x86/msr.h b/include/asm-x86/msr.h
index 3707650a169..2b5f2c91db2 100644
--- a/include/asm-x86/msr.h
+++ b/include/asm-x86/msr.h
@@ -18,7 +18,7 @@ static inline unsigned long long native_read_tscp(unsigned int *aux)
unsigned long low, high;
asm volatile(".byte 0x0f,0x01,0xf9"
: "=a" (low), "=d" (high), "=c" (*aux));
- return low | ((u64)high >> 32);
+ return low | ((u64)high << 32);
}
/*
diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h
index b381f4a5a0b..dc936dddf16 100644
--- a/include/asm-x86/page.h
+++ b/include/asm-x86/page.h
@@ -10,8 +10,16 @@
#ifdef __KERNEL__
-#define PHYSICAL_PAGE_MASK (PAGE_MASK & __PHYSICAL_MASK)
-#define PTE_MASK (_AT(long, PHYSICAL_PAGE_MASK))
+#define __PHYSICAL_MASK ((phys_addr_t)(1ULL << __PHYSICAL_MASK_SHIFT) - 1)
+#define __VIRTUAL_MASK ((1UL << __VIRTUAL_MASK_SHIFT) - 1)
+
+/* Cast PAGE_MASK to a signed type so that it is sign-extended if
+ virtual addresses are 32-bits but physical addresses are larger
+ (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)
#define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT)
#define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1))
@@ -24,9 +32,6 @@
/* to align the pointer to the (next) page boundary */
#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-#define __PHYSICAL_MASK _AT(phys_addr_t, (_AC(1,ULL) << __PHYSICAL_MASK_SHIFT) - 1)
-#define __VIRTUAL_MASK ((_AC(1,UL) << __VIRTUAL_MASK_SHIFT) - 1)
-
#ifndef __ASSEMBLY__
#include <linux/types.h>
#endif
diff --git a/include/asm-x86/page_32.h b/include/asm-x86/page_32.h
index 424e82f8ae2..ccf0ba3c3ab 100644
--- a/include/asm-x86/page_32.h
+++ b/include/asm-x86/page_32.h
@@ -14,7 +14,8 @@
#define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL)
#ifdef CONFIG_X86_PAE
-#define __PHYSICAL_MASK_SHIFT 36
+/* 44=32+12, the limit we can fit into an unsigned long pfn */
+#define __PHYSICAL_MASK_SHIFT 44
#define __VIRTUAL_MASK_SHIFT 32
#define PAGETABLE_LEVELS 3
diff --git a/include/asm-x86/pgtable-3level.h b/include/asm-x86/pgtable-3level.h
index 8b4a9d44b7f..c93dbb6c262 100644
--- a/include/asm-x86/pgtable-3level.h
+++ b/include/asm-x86/pgtable-3level.h
@@ -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) & PAGE_MASK))
+#define pud_page(pud) ((struct page *) __va(pud_val(pud) & PTE_MASK))
-#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PAGE_MASK))
+#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PTE_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) & ~_PAGE_NX) >> PAGE_SHIFT;
+ return (pte_val(pte) & PTE_MASK) >> PAGE_SHIFT;
}
/*
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 55c3a0e3a8c..97c271b2910 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -57,6 +57,7 @@
#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | \
_PAGE_DIRTY)
+/* Set of bits not changed in pte_modify */
#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_PCD | _PAGE_PWT | \
_PAGE_ACCESSED | _PAGE_DIRTY)
@@ -304,7 +305,7 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
return __pgprot(preservebits | addbits);
}
-#define pte_pgprot(x) __pgprot(pte_val(x) & (0xfff | _PAGE_NX))
+#define pte_pgprot(x) __pgprot(pte_val(x) & ~PTE_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 d7f0403bbec..32ca03109a4 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) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
+#define pmd_bad(x) ((pmd_val(x) & (~PTE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE)
#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
@@ -159,7 +159,7 @@ 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)) & PAGE_MASK))
+ ((unsigned long)__va(pmd_val((pmd)) & PTE_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 efe83dcbd41..1cc50d22d73 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -151,19 +151,19 @@ static inline void native_pgd_clear(pgd_t *pgd)
#ifndef __ASSEMBLY__
-static inline unsigned long pgd_bad(pgd_t pgd)
+static inline int pgd_bad(pgd_t pgd)
{
- return pgd_val(pgd) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER);
+ return (pgd_val(pgd) & ~(PTE_MASK | _PAGE_USER)) != _KERNPG_TABLE;
}
-static inline unsigned long pud_bad(pud_t pud)
+static inline int pud_bad(pud_t pud)
{
- return pud_val(pud) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER);
+ return (pud_val(pud) & ~(PTE_MASK | _PAGE_USER)) != _KERNPG_TABLE;
}
-static inline unsigned long pmd_bad(pmd_t pmd)
+static inline int pmd_bad(pmd_t pmd)
{
- return pmd_val(pmd) & ~(PTE_MASK | _KERNPG_TABLE | _PAGE_USER);
+ return (pmd_val(pmd) & ~(PTE_MASK | _PAGE_USER)) != _KERNPG_TABLE;
}
#define pte_none(x) (!pte_val((x)))
diff --git a/include/asm-x86/pvclock-abi.h b/include/asm-x86/pvclock-abi.h
new file mode 100644
index 00000000000..6857f840b24
--- /dev/null
+++ b/include/asm-x86/pvclock-abi.h
@@ -0,0 +1,42 @@
+#ifndef _ASM_X86_PVCLOCK_ABI_H_
+#define _ASM_X86_PVCLOCK_ABI_H_
+#ifndef __ASSEMBLY__
+
+/*
+ * These structs MUST NOT be changed.
+ * They are the ABI between hypervisor and guest OS.
+ * Both Xen and KVM are using this.
+ *
+ * pvclock_vcpu_time_info holds the system time and the tsc timestamp
+ * of the last update. So the guest can use the tsc delta to get a
+ * more precise system time. There is one per virtual cpu.
+ *
+ * pvclock_wall_clock references the point in time when the system
+ * time was zero (usually boot time), thus the guest calculates the
+ * current wall clock by adding the system time.
+ *
+ * Protocol for the "version" fields is: hypervisor raises it (making
+ * it uneven) before it starts updating the fields and raises it again
+ * (making it even) when it is done. Thus the guest can make sure the
+ * time values it got are consistent by checking the version before
+ * and after reading them.
+ */
+
+struct pvclock_vcpu_time_info {
+ u32 version;
+ u32 pad0;
+ u64 tsc_timestamp;
+ u64 system_time;
+ u32 tsc_to_system_mul;
+ s8 tsc_shift;
+ u8 pad[3];
+} __attribute__((__packed__)); /* 32 bytes */
+
+struct pvclock_wall_clock {
+ u32 version;
+ u32 sec;
+ u32 nsec;
+} __attribute__((__packed__));
+
+#endif /* __ASSEMBLY__ */
+#endif /* _ASM_X86_PVCLOCK_ABI_H_ */
diff --git a/include/asm-x86/pvclock.h b/include/asm-x86/pvclock.h
new file mode 100644
index 00000000000..85b1bba8e0a
--- /dev/null
+++ b/include/asm-x86/pvclock.h
@@ -0,0 +1,13 @@
+#ifndef _ASM_X86_PVCLOCK_H_
+#define _ASM_X86_PVCLOCK_H_
+
+#include <linux/clocksource.h>
+#include <asm/pvclock-abi.h>
+
+/* some helper functions for xen and kvm pv clock sources */
+cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src);
+void pvclock_read_wallclock(struct pvclock_wall_clock *wall,
+ struct pvclock_vcpu_time_info *vcpu,
+ struct timespec *ts);
+
+#endif /* _ASM_X86_PVCLOCK_H_ */
diff --git a/include/asm-x86/tlbflush.h b/include/asm-x86/tlbflush.h
index 0c0674d9425..35c76ceb9f4 100644
--- a/include/asm-x86/tlbflush.h
+++ b/include/asm-x86/tlbflush.h
@@ -22,12 +22,23 @@ static inline void __native_flush_tlb(void)
static inline void __native_flush_tlb_global(void)
{
- unsigned long cr4 = read_cr4();
+ unsigned long flags;
+ unsigned long cr4;
+ /*
+ * Read-modify-write to CR4 - protect it from preemption and
+ * from interrupts. (Use the raw variant because this code can
+ * be called from deep inside debugging code.)
+ */
+ raw_local_irq_save(flags);
+
+ cr4 = read_cr4();
/* clear PGE */
write_cr4(cr4 & ~X86_CR4_PGE);
/* write old PGE again and flush TLBs */
write_cr4(cr4);
+
+ raw_local_irq_restore(flags);
}
static inline void __native_flush_tlb_single(unsigned long addr)
diff --git a/include/asm-x86/xen/page.h b/include/asm-x86/xen/page.h
index 01799305f02..e11f24038b1 100644
--- a/include/asm-x86/xen/page.h
+++ b/include/asm-x86/xen/page.h
@@ -127,7 +127,7 @@ static inline void set_phys_to_machine(unsigned long pfn, unsigned long mfn)
static inline unsigned long pte_mfn(pte_t pte)
{
- return (pte.pte & ~_PAGE_NX) >> PAGE_SHIFT;
+ return (pte.pte & PTE_MASK) >> PAGE_SHIFT;
}
static inline pte_t mfn_pte(unsigned long page_nr, pgprot_t pgprot)
@@ -150,13 +150,9 @@ static inline pte_t __pte_ma(pteval_t x)
return (pte_t) { .pte = x };
}
-#ifdef CONFIG_X86_PAE
#define pmd_val_ma(v) ((v).pmd)
#define pud_val_ma(v) ((v).pgd.pgd)
#define __pmd_ma(x) ((pmd_t) { (x) } )
-#else /* !X86_PAE */
-#define pmd_val_ma(v) ((v).pud.pgd.pgd)
-#endif /* CONFIG_X86_PAE */
#define pgd_val_ma(x) ((x).pgd)
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-30 22:50:15 +0000