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[PATCH] i386: PARAVIRT: revert map_pt_hook. 

Back out the map_pt_hook to clear the way for kmap_atomic_pte.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Zachary Amsden <zach@vmware.com>
This commit is contained in:
Jeremy Fitzhardinge 2007-05-02 19:27:15 +02:00 committed by Andi Kleen
parent d4c104771a
commit a27fe809b8
4 changed files with 6 additions and 28 deletions
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2
arch/i386/kernel/paravirt.c
View File

@ -302,8 +302,6 @@ struct paravirt_ops paravirt_ops = {
.flush_tlb_single = native_flush_tlb_single,
.flush_tlb_others = native_flush_tlb_others,
.map_pt_hook = paravirt_nop,
.alloc_pt = paravirt_nop,
.alloc_pd = paravirt_nop,
.alloc_pd_clone = paravirt_nop,

2
arch/i386/kernel/vmi.c
View File

@ -851,8 +851,10 @@ static inline int __init activate_vmi(void)
paravirt_ops.release_pt = vmi_release_pt;
paravirt_ops.release_pd = vmi_release_pd;
}
#if 0
para_wrap(map_pt_hook, vmi_map_pt_hook, set_linear_mapping,
SetLinearMapping);
#endif
/*
* These MUST always be patched. Don't support indirect jumps

7
include/asm-i386/paravirt.h
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@ -169,8 +169,6 @@ struct paravirt_ops
void (*flush_tlb_others)(const cpumask_t *cpus, struct mm_struct *mm,
unsigned long va);
void (*map_pt_hook)(int type, pte_t *va, u32 pfn);
/* Hooks for allocating/releasing pagetable pages */
void (*alloc_pt)(u32 pfn);
void (*alloc_pd)(u32 pfn);
@ -862,11 +860,6 @@ static inline void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
PVOP_VCALL3(flush_tlb_others, &cpumask, mm, va);
}
static inline void paravirt_map_pt_hook(int type, pte_t *va, u32 pfn)
{
PVOP_VCALL3(map_pt_hook, type, va, pfn);
}
static inline void paravirt_alloc_pt(unsigned pfn)
{
PVOP_VCALL1(alloc_pt, pfn);

23
include/asm-i386/pgtable.h
View File

@ -267,7 +267,6 @@ extern void vmalloc_sync_all(void);
*/
#define pte_update(mm, addr, ptep) do { } while (0)
#define pte_update_defer(mm, addr, ptep) do { } while (0)
#define paravirt_map_pt_hook(slot, va, pfn) do { } while (0)
#define raw_ptep_get_and_clear(xp) native_ptep_get_and_clear(xp)
#endif
@ -476,24 +475,10 @@ extern pte_t *lookup_address(unsigned long address);
#endif
#if defined(CONFIG_HIGHPTE)
#define pte_offset_map(dir, address) \
({ \
pte_t *__ptep; \
unsigned pfn = pmd_val(*(dir)) >> PAGE_SHIFT; \
__ptep = (pte_t *)kmap_atomic(pfn_to_page(pfn),KM_PTE0);\
paravirt_map_pt_hook(KM_PTE0,__ptep, pfn); \
__ptep = __ptep + pte_index(address); \
__ptep; \
})
#define pte_offset_map_nested(dir, address) \
({ \
pte_t *__ptep; \
unsigned pfn = pmd_val(*(dir)) >> PAGE_SHIFT; \
__ptep = (pte_t *)kmap_atomic(pfn_to_page(pfn),KM_PTE1);\
paravirt_map_pt_hook(KM_PTE1,__ptep, pfn); \
__ptep = __ptep + pte_index(address); \
__ptep; \
})
#define pte_offset_map(dir, address) \
((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE0) + pte_index(address))
#define pte_offset_map_nested(dir, address) \
((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE1) + pte_index(address))
#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
#define pte_unmap_nested(pte) kunmap_atomic(pte, KM_PTE1)
#else