Displaying 20 results from an estimated 58 matches for "user_ptrs_per_pgd".
2007 Apr 18
0
[PATCH 1/5] Paravirt page alloc.patch
...mp;kpte_page->lru, &df_list);
revert_page(kpte_page, address);
}
===================================================================
--- a/arch/i386/mm/pgtable.c
+++ b/arch/i386/mm/pgtable.c
@@ -245,8 +245,14 @@ void pgd_ctor(void *pgd, kmem_cache_t *c
clone_pgd_range((pgd_t *)pgd + USER_PTRS_PER_PGD,
swapper_pg_dir + USER_PTRS_PER_PGD,
KERNEL_PGD_PTRS);
+
if (PTRS_PER_PMD > 1)
return;
+
+ /* must happen under lock */
+ paravirt_alloc_pd_clone(__pa(pgd) >> PAGE_SHIFT,
+ __pa(swapper_pg_dir) >> PAGE_SHIFT,
+ USER_PTRS_PER_PGD, PTRS_PER_PGD - USER_PTRS_PER_PGD);...
2007 Apr 18
0
[PATCH 1/5] Paravirt page alloc.patch
...mp;kpte_page->lru, &df_list);
revert_page(kpte_page, address);
}
===================================================================
--- a/arch/i386/mm/pgtable.c
+++ b/arch/i386/mm/pgtable.c
@@ -245,8 +245,14 @@ void pgd_ctor(void *pgd, kmem_cache_t *c
clone_pgd_range((pgd_t *)pgd + USER_PTRS_PER_PGD,
swapper_pg_dir + USER_PTRS_PER_PGD,
KERNEL_PGD_PTRS);
+
if (PTRS_PER_PMD > 1)
return;
+
+ /* must happen under lock */
+ paravirt_alloc_pd_clone(__pa(pgd) >> PAGE_SHIFT,
+ __pa(swapper_pg_dir) >> PAGE_SHIFT,
+ USER_PTRS_PER_PGD, PTRS_PER_PGD - USER_PTRS_PER_PGD);...
2007 Apr 18
0
[PATCH 1/6] Page allocation hooks for VMI backend
...mp;kpte_page->lru, &df_list);
revert_page(kpte_page, address);
}
===================================================================
--- a/arch/i386/mm/pgtable.c
+++ b/arch/i386/mm/pgtable.c
@@ -245,8 +245,14 @@ void pgd_ctor(void *pgd, kmem_cache_t *c
clone_pgd_range((pgd_t *)pgd + USER_PTRS_PER_PGD,
swapper_pg_dir + USER_PTRS_PER_PGD,
KERNEL_PGD_PTRS);
+
if (PTRS_PER_PMD > 1)
return;
+
+ /* must happen under lock */
+ paravirt_alloc_pd_clone(__pa(pgd) >> PAGE_SHIFT,
+ __pa(swapper_pg_dir) >> PAGE_SHIFT,
+ USER_PTRS_PER_PGD, PTRS_PER_PGD - USER_PTRS_PER_PGD);...
2007 Apr 18
0
[PATCH 1/6] Page allocation hooks for VMI backend
...mp;kpte_page->lru, &df_list);
revert_page(kpte_page, address);
}
===================================================================
--- a/arch/i386/mm/pgtable.c
+++ b/arch/i386/mm/pgtable.c
@@ -245,8 +245,14 @@ void pgd_ctor(void *pgd, kmem_cache_t *c
clone_pgd_range((pgd_t *)pgd + USER_PTRS_PER_PGD,
swapper_pg_dir + USER_PTRS_PER_PGD,
KERNEL_PGD_PTRS);
+
if (PTRS_PER_PMD > 1)
return;
+
+ /* must happen under lock */
+ paravirt_alloc_pd_clone(__pa(pgd) >> PAGE_SHIFT,
+ __pa(swapper_pg_dir) >> PAGE_SHIFT,
+ USER_PTRS_PER_PGD, PTRS_PER_PGD - USER_PTRS_PER_PGD);...
2007 Apr 18
1
[PATCH 4/10] I386 pgd clone under lock fix.patch
...zach@vmware.com>
diff -r 2247ff2c3fdb arch/i386/mm/pgtable.c
--- a/arch/i386/mm/pgtable.c Thu Apr 05 17:29:15 2007 -0700
+++ b/arch/i386/mm/pgtable.c Thu Apr 05 17:40:02 2007 -0700
@@ -241,18 +241,16 @@ void pgd_ctor(void *pgd, struct kmem_cac
/* !PAE, no pagetable sharing */
memset(pgd, 0, USER_PTRS_PER_PGD*sizeof(pgd_t));
+ spin_lock_irqsave(&pgd_lock, flags);
+
+ /* must happen under lock */
clone_pgd_range((pgd_t *)pgd + USER_PTRS_PER_PGD,
swapper_pg_dir + USER_PTRS_PER_PGD,
KERNEL_PGD_PTRS);
-
- spin_lock_irqsave(&pgd_lock, flags);
-
- /* must happen under lock */
paravirt_al...
2007 Apr 18
1
[PATCH 4/10] I386 pgd clone under lock fix.patch
...zach@vmware.com>
diff -r 2247ff2c3fdb arch/i386/mm/pgtable.c
--- a/arch/i386/mm/pgtable.c Thu Apr 05 17:29:15 2007 -0700
+++ b/arch/i386/mm/pgtable.c Thu Apr 05 17:40:02 2007 -0700
@@ -241,18 +241,16 @@ void pgd_ctor(void *pgd, struct kmem_cac
/* !PAE, no pagetable sharing */
memset(pgd, 0, USER_PTRS_PER_PGD*sizeof(pgd_t));
+ spin_lock_irqsave(&pgd_lock, flags);
+
+ /* must happen under lock */
clone_pgd_range((pgd_t *)pgd + USER_PTRS_PER_PGD,
swapper_pg_dir + USER_PTRS_PER_PGD,
KERNEL_PGD_PTRS);
-
- spin_lock_irqsave(&pgd_lock, flags);
-
- /* must happen under lock */
paravirt_al...
2007 Apr 18
1
[PATCH 1/5] Add pagetable allocation notifiers
...==================================
--- linux-2.6.13.orig/arch/i386/mm/pgtable.c 2005-08-24 09:31:05.000000000 -0700
+++ linux-2.6.13/arch/i386/mm/pgtable.c 2005-08-24 09:40:22.000000000 -0700
@@ -209,6 +209,7 @@ void pgd_ctor(void *pgd, kmem_cache_t *c
if (PTRS_PER_PMD == 1) {
memset(pgd, 0, USER_PTRS_PER_PGD*sizeof(pgd_t));
+ SetPagePDE(virt_to_page(pgd));
spin_lock_irqsave(&pgd_lock, flags);
}
@@ -227,6 +228,7 @@ void pgd_dtor(void *pgd, kmem_cache_t *c
{
unsigned long flags; /* can be called from interrupt context */
+ ClearPagePDE(virt_to_page(pgd));
spin_lock_irqsave(&pgd_loc...
2007 Apr 18
1
[PATCH 1/5] Add pagetable allocation notifiers
...==================================
--- linux-2.6.13.orig/arch/i386/mm/pgtable.c 2005-08-24 09:31:05.000000000 -0700
+++ linux-2.6.13/arch/i386/mm/pgtable.c 2005-08-24 09:40:22.000000000 -0700
@@ -209,6 +209,7 @@ void pgd_ctor(void *pgd, kmem_cache_t *c
if (PTRS_PER_PMD == 1) {
memset(pgd, 0, USER_PTRS_PER_PGD*sizeof(pgd_t));
+ SetPagePDE(virt_to_page(pgd));
spin_lock_irqsave(&pgd_lock, flags);
}
@@ -227,6 +228,7 @@ void pgd_dtor(void *pgd, kmem_cache_t *c
{
unsigned long flags; /* can be called from interrupt context */
+ ClearPagePDE(virt_to_page(pgd));
spin_lock_irqsave(&pgd_loc...
2007 Apr 18
0
[PATCH 2/2] Use page present for pae pdpes
...SHIFT));
- kmem_cache_free(pmd_cache, (void *)__va(pgd_val(pgd[i])-1));
+ kmem_cache_free(pmd_cache, (void *)__va(pgd_val(pgd[i]) & PAGE_MASK));
}
kmem_cache_free(pgd_cache, pgd);
return NULL;
@@ -268,7 +268,7 @@ void pgd_free(pgd_t *pgd)
if (PTRS_PER_PMD > 1)
for (i = 0; i < USER_PTRS_PER_PGD; ++i) {
ClearPagePDE(pfn_to_page(pgd_val(pgd[i]) >> PAGE_SHIFT));
- kmem_cache_free(pmd_cache, (void *)__va(pgd_val(pgd[i])-1));
+ kmem_cache_free(pmd_cache, (void *)__va(pgd_val(pgd[i]) & PAGE_MASK));
}
/* in the non-PAE case, free_pgtables() clears user pgd entries */
kme...
2007 Apr 18
0
[PATCH 2/2] Use page present for pae pdpes
...SHIFT));
- kmem_cache_free(pmd_cache, (void *)__va(pgd_val(pgd[i])-1));
+ kmem_cache_free(pmd_cache, (void *)__va(pgd_val(pgd[i]) & PAGE_MASK));
}
kmem_cache_free(pgd_cache, pgd);
return NULL;
@@ -268,7 +268,7 @@ void pgd_free(pgd_t *pgd)
if (PTRS_PER_PMD > 1)
for (i = 0; i < USER_PTRS_PER_PGD; ++i) {
ClearPagePDE(pfn_to_page(pgd_val(pgd[i]) >> PAGE_SHIFT));
- kmem_cache_free(pmd_cache, (void *)__va(pgd_val(pgd[i])-1));
+ kmem_cache_free(pmd_cache, (void *)__va(pgd_val(pgd[i]) & PAGE_MASK));
}
/* in the non-PAE case, free_pgtables() clears user pgd entries */
kme...
2007 Apr 18
1
[RFC, PATCH 19/24] i386 Vmi mmu changes
..._low_pages(PAGE_SIZE);
+ mach_setup_pte(__pa(page_table) >> PAGE_SHIFT);
set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
if (page_table != pte_offset_kernel(pmd, 0))
BUG();
@@ -382,6 +382,7 @@ static void __init pagetable_init (void)
*/
set_pgd(&pgd_base[0], pgd_base[USER_PTRS_PER_PGD]);
#endif
+
}
#ifdef CONFIG_SOFTWARE_SUSPEND
Index: linux-2.6.16-rc5/arch/i386/mm/pgtable.c
===================================================================
--- linux-2.6.16-rc5.orig/arch/i386/mm/pgtable.c 2006-03-10 12:55:05.000000000 -0800
+++ linux-2.6.16-rc5/arch/i386/mm/pgtable.c 2006-...
2007 Apr 18
1
[RFC, PATCH 19/24] i386 Vmi mmu changes
..._low_pages(PAGE_SIZE);
+ mach_setup_pte(__pa(page_table) >> PAGE_SHIFT);
set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
if (page_table != pte_offset_kernel(pmd, 0))
BUG();
@@ -382,6 +382,7 @@ static void __init pagetable_init (void)
*/
set_pgd(&pgd_base[0], pgd_base[USER_PTRS_PER_PGD]);
#endif
+
}
#ifdef CONFIG_SOFTWARE_SUSPEND
Index: linux-2.6.16-rc5/arch/i386/mm/pgtable.c
===================================================================
--- linux-2.6.16-rc5.orig/arch/i386/mm/pgtable.c 2006-03-10 12:55:05.000000000 -0800
+++ linux-2.6.16-rc5/arch/i386/mm/pgtable.c 2006-...
2007 Apr 18
2
pgd_alloc and [cd]tors
Is there any real use in having a ctor/dtor for the pgd cache? Given
that all pgd allocation happens via pgd_alloc/pgd_free, why not just
fold the [cd]tor in?
I'm asking because Xen wants pgd[3] to be unshared in the PAE case, and
it looks to me like the easiest way to handle that is by making
pgd_alloc/free pv-ops and doing the appropriate thing in the Xen code.
Would need to sort out the
2007 Apr 18
2
pgd_alloc and [cd]tors
Is there any real use in having a ctor/dtor for the pgd cache? Given
that all pgd allocation happens via pgd_alloc/pgd_free, why not just
fold the [cd]tor in?
I'm asking because Xen wants pgd[3] to be unshared in the PAE case, and
it looks to me like the easiest way to handle that is by making
pgd_alloc/free pv-ops and doing the appropriate thing in the Xen code.
Would need to sort out the
2007 Apr 18
0
[RFC/PATCH PV_OPS X86_64 01/17] paravirt_ops - core changes
....
+ *
+ * In a normal native boot, we'll be running on a
+ * pagetable rooted in swapper_pg_dir, but not in PAE
+ * mode, so this will end up clobbering the mappings
+ * for the lower 24Mbytes of the address space,
+ * without affecting the kernel address space.
+ */
+ for (i = 0; i < USER_PTRS_PER_PGD; i++)
+ set_pgd(&base[i],
+ __pgd(__pa(empty_zero_page) | _PAGE_PRESENT));
+ memset(&base[USER_PTRS_PER_PGD], 0, sizeof(pgd_t));
+}
+
+void native_pagetable_setup_done(pgd_t *base)
+{
+ /*
+ * Add low memory identity-mappings - SMP needs it when
+ * starting up on an AP from real-mode....
2007 Apr 18
0
[RFC/PATCH PV_OPS X86_64 01/17] paravirt_ops - core changes
....
+ *
+ * In a normal native boot, we'll be running on a
+ * pagetable rooted in swapper_pg_dir, but not in PAE
+ * mode, so this will end up clobbering the mappings
+ * for the lower 24Mbytes of the address space,
+ * without affecting the kernel address space.
+ */
+ for (i = 0; i < USER_PTRS_PER_PGD; i++)
+ set_pgd(&base[i],
+ __pgd(__pa(empty_zero_page) | _PAGE_PRESENT));
+ memset(&base[USER_PTRS_PER_PGD], 0, sizeof(pgd_t));
+}
+
+void native_pagetable_setup_done(pgd_t *base)
+{
+ /*
+ * Add low memory identity-mappings - SMP needs it when
+ * starting up on an AP from real-mode....
2007 Apr 18
17
[patch 00/17] paravirt_ops updates
Hi Andi,
This series of patches updates paravirt_ops in various ways. Some of the
changes are plain cleanups and improvements, and some add some interfaces
necessary for Xen.
The brief overview:
add-MAINTAINERS.patch - obvious
remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed
paravirt-nop.patch - mark nop operations consistently
paravirt-pte-accessors.patch - operations to pack/unpack
2007 Apr 18
17
[patch 00/17] paravirt_ops updates
Hi Andi,
This series of patches updates paravirt_ops in various ways. Some of the
changes are plain cleanups and improvements, and some add some interfaces
necessary for Xen.
The brief overview:
add-MAINTAINERS.patch - obvious
remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed
paravirt-nop.patch - mark nop operations consistently
paravirt-pte-accessors.patch - operations to pack/unpack
2007 Apr 18
23
[patch 00/20] paravirt_ops updates
Hi Andi,
Here's a repost of the paravirt_ops update series I posted the other day.
Since then, I found a few potential bugs with patching clobbering,
cleaned up and documented paravirt.h and the patching machinery.
Overview:
add-MAINTAINERS.patch
obvious
remove-CONFIG_DEBUG_PARAVIRT.patch
No longer meaningful or needed.
paravirt-nop.patch
Clean up nop paravirt_ops functions, mainly to
2007 Apr 18
23
[patch 00/20] paravirt_ops updates
Hi Andi,
Here's a repost of the paravirt_ops update series I posted the other day.
Since then, I found a few potential bugs with patching clobbering,
cleaned up and documented paravirt.h and the patching machinery.
Overview:
add-MAINTAINERS.patch
obvious
remove-CONFIG_DEBUG_PARAVIRT.patch
No longer meaningful or needed.
paravirt-nop.patch
Clean up nop paravirt_ops functions, mainly to