Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 53883
b: refs/heads/master
c: eeef9c6
h: refs/heads/master
i:
  53881: 57fb594
  53879: a06182c
v: v3
  • Loading branch information
Zachary Amsden authored and Andi Kleen committed May 2, 2007
1 parent aa47b58 commit b3db17e
Show file tree
Hide file tree
Showing 2 changed files with 23 additions and 13 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 9f53a729dbf0ba8abdc464f6eb828f485d3417f7
refs/heads/master: eeef9c68aae2f4f21ab810d0339e0f22d30b0cd8
34 changes: 22 additions & 12 deletions trunk/arch/i386/kernel/vmi.c
Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@
#include <linux/cpu.h>
#include <linux/bootmem.h>
#include <linux/mm.h>
#include <linux/highmem.h>
#include <asm/vmi.h>
#include <asm/io.h>
#include <asm/fixmap.h>
Expand Down Expand Up @@ -65,8 +66,8 @@ static struct {
void (*release_page)(u32, u32);
void (*set_pte)(pte_t, pte_t *, unsigned);
void (*update_pte)(pte_t *, unsigned);
void (*set_linear_mapping)(int, u32, u32, u32);
void (*flush_tlb)(int);
void (*set_linear_mapping)(int, void *, u32, u32);
void (*_flush_tlb)(int);
void (*set_initial_ap_state)(int, int);
void (*halt)(void);
void (*set_lazy_mode)(int mode);
Expand Down Expand Up @@ -221,12 +222,12 @@ static void vmi_load_esp0(struct tss_struct *tss,

static void vmi_flush_tlb_user(void)
{
vmi_ops.flush_tlb(VMI_FLUSH_TLB);
vmi_ops._flush_tlb(VMI_FLUSH_TLB);
}

static void vmi_flush_tlb_kernel(void)
{
vmi_ops.flush_tlb(VMI_FLUSH_TLB | VMI_FLUSH_GLOBAL);
vmi_ops._flush_tlb(VMI_FLUSH_TLB | VMI_FLUSH_GLOBAL);
}

/* Stub to do nothing at all; used for delays and unimplemented calls */
Expand Down Expand Up @@ -349,8 +350,11 @@ static void vmi_check_page_type(u32 pfn, int type)
#define vmi_check_page_type(p,t) do { } while (0)
#endif

static void vmi_map_pt_hook(int type, pte_t *va, u32 pfn)
#ifdef CONFIG_HIGHPTE
static void *vmi_kmap_atomic_pte(struct page *page, enum km_type type)
{
void *va = kmap_atomic(page, type);

/*
* Internally, the VMI ROM must map virtual addresses to physical
* addresses for processing MMU updates. By the time MMU updates
Expand All @@ -364,8 +368,11 @@ static void vmi_map_pt_hook(int type, pte_t *va, u32 pfn)
* args: SLOT VA COUNT PFN
*/
BUG_ON(type != KM_PTE0 && type != KM_PTE1);
vmi_ops.set_linear_mapping((type - KM_PTE0)+1, (u32)va, 1, pfn);
vmi_ops.set_linear_mapping((type - KM_PTE0)+1, va, 1, page_to_pfn(page));

return va;
}
#endif

static void vmi_allocate_pt(u32 pfn)
{
Expand Down Expand Up @@ -660,7 +667,7 @@ void vmi_bringup(void)
{
/* We must establish the lowmem mapping for MMU ops to work */
if (vmi_ops.set_linear_mapping)
vmi_ops.set_linear_mapping(0, __PAGE_OFFSET, max_low_pfn, 0);
vmi_ops.set_linear_mapping(0, (void *)__PAGE_OFFSET, max_low_pfn, 0);
}

/*
Expand Down Expand Up @@ -800,8 +807,8 @@ static inline int __init activate_vmi(void)
para_wrap(set_lazy_mode, vmi_set_lazy_mode, set_lazy_mode, SetLazyMode);

/* user and kernel flush are just handled with different flags to FlushTLB */
para_wrap(flush_tlb_user, vmi_flush_tlb_user, flush_tlb, FlushTLB);
para_wrap(flush_tlb_kernel, vmi_flush_tlb_kernel, flush_tlb, FlushTLB);
para_wrap(flush_tlb_user, vmi_flush_tlb_user, _flush_tlb, FlushTLB);
para_wrap(flush_tlb_kernel, vmi_flush_tlb_kernel, _flush_tlb, FlushTLB);
para_fill(flush_tlb_single, InvalPage);

/*
Expand Down Expand Up @@ -847,9 +854,12 @@ 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);

/* Set linear is needed in all cases */
vmi_ops.set_linear_mapping = vmi_get_function(VMI_CALL_SetLinearMapping);
#ifdef CONFIG_HIGHPTE
if (vmi_ops.set_linear_mapping)
paravirt_ops.kmap_atomic_pte = vmi_kmap_atomic_pte;
#endif

/*
Expand Down

0 comments on commit b3db17e

Please sign in to comment.