Displaying 20 results from an estimated 41 matches for "pin_pag".
Did you mean:
pin_page
2007 Apr 27
0
[PATCH] lguest simplification: don't pin guest trap handlers
...terrupts_and_traps.c
@@ -138,31 +138,12 @@ static int direct_trap(const struct lgue
return idt_type(trap->a, trap->b) == 0xF;
}
-static void pin_stack_pages(struct lguest *lg)
+void pin_stack_pages(struct lguest *lg)
{
unsigned int i;
for (i = 0; i < lg->stack_pages; i++)
pin_page(lg, lg->esp1 - i * PAGE_SIZE);
-}
-
-/* We need to ensure all the direct trap pages are mapped after we
- * clear shadow mappings. */
-void pin_trap_pages(struct lguest *lg)
-{
- unsigned int i;
- struct desc_struct *trap;
-
- for (i = 0; i < FIRST_EXTERNAL_VECTOR; i++) {
- trap = &lg-&...
2007 Apr 27
0
[PATCH] lguest simplification: don't pin guest trap handlers
...terrupts_and_traps.c
@@ -138,31 +138,12 @@ static int direct_trap(const struct lgue
return idt_type(trap->a, trap->b) == 0xF;
}
-static void pin_stack_pages(struct lguest *lg)
+void pin_stack_pages(struct lguest *lg)
{
unsigned int i;
for (i = 0; i < lg->stack_pages; i++)
pin_page(lg, lg->esp1 - i * PAGE_SIZE);
-}
-
-/* We need to ensure all the direct trap pages are mapped after we
- * clear shadow mappings. */
-void pin_trap_pages(struct lguest *lg)
-{
- unsigned int i;
- struct desc_struct *trap;
-
- for (i = 0; i < FIRST_EXTERNAL_VECTOR; i++) {
- trap = &lg-&...
2007 Apr 30
0
[PATCH] lguest: properly kill guest userspace programs accessing kernel mem
...struct lguest *lg, unsigned long cr3,
unsigned long vaddr, gpte_t val);
void map_switcher_in_guest(struct lguest *lg, struct lguest_pages *pages);
-int demand_page(struct lguest *info, unsigned long cr2, int write);
+int demand_page(struct lguest *info, unsigned long cr2, int errcode);
void pin_page(struct lguest *lg, unsigned long vaddr);
/* lguest_user.c: */
===================================================================
--- a/drivers/lguest/page_tables.c
+++ b/drivers/lguest/page_tables.c
@@ -109,7 +109,7 @@ static void check_gpgd(struct lguest *lg
/* We fault pages in, which all...
2007 Apr 30
0
[PATCH] lguest: properly kill guest userspace programs accessing kernel mem
...struct lguest *lg, unsigned long cr3,
unsigned long vaddr, gpte_t val);
void map_switcher_in_guest(struct lguest *lg, struct lguest_pages *pages);
-int demand_page(struct lguest *info, unsigned long cr2, int write);
+int demand_page(struct lguest *info, unsigned long cr2, int errcode);
void pin_page(struct lguest *lg, unsigned long vaddr);
/* lguest_user.c: */
===================================================================
--- a/drivers/lguest/page_tables.c
+++ b/drivers/lguest/page_tables.c
@@ -109,7 +109,7 @@ static void check_gpgd(struct lguest *lg
/* We fault pages in, which all...
2009 Mar 26
1
[PATCH 3/5] lguest: avoid accidental recycling of pgdir pages
...t lg_cpu *cpu, unsigned long gpgdir,
unsigned long vaddr, pte_t val);
void map_switcher_in_guest(struct lg_cpu *cpu, struct lguest_pages *pages);
int demand_page(struct lg_cpu *cpu, unsigned long cr2, int errcode);
+void invalidate_pagetable(struct lg_cpu *cpu, unsigned long pgtable);
void pin_page(struct lg_cpu *cpu, unsigned long vaddr);
unsigned long guest_pa(struct lg_cpu *cpu, unsigned long vaddr);
void page_table_guest_data_init(struct lg_cpu *cpu);
diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
index 81d0c60..fd3e1f5 100644
--- a/drivers/lguest/page_tables....
2009 Mar 26
1
[PATCH 3/5] lguest: avoid accidental recycling of pgdir pages
...t lg_cpu *cpu, unsigned long gpgdir,
unsigned long vaddr, pte_t val);
void map_switcher_in_guest(struct lg_cpu *cpu, struct lguest_pages *pages);
int demand_page(struct lg_cpu *cpu, unsigned long cr2, int errcode);
+void invalidate_pagetable(struct lg_cpu *cpu, unsigned long pgtable);
void pin_page(struct lg_cpu *cpu, unsigned long vaddr);
unsigned long guest_pa(struct lg_cpu *cpu, unsigned long vaddr);
void page_table_guest_data_init(struct lg_cpu *cpu);
diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
index 81d0c60..fd3e1f5 100644
--- a/drivers/lguest/page_tables....
2007 Oct 12
10
[PATCH 00/10] REVIEW: Xen patches for 2.6.24
This is my current set of updates to Xen for 2.6.24. This is largely
a bugfix set, and a couple of them are also relevent to 2.6.23.
These are in the pre-x86 merge form; I'll update them once the merge
goes into git.
Quick overview:
- remove some dead code in arch/i386/mm/init.c
- clean up some duplicate includes
- when sending an IPI, yield the vcpu if the destination doesn't have
2007 Oct 12
10
[PATCH 00/10] REVIEW: Xen patches for 2.6.24
This is my current set of updates to Xen for 2.6.24. This is largely
a bugfix set, and a couple of them are also relevent to 2.6.23.
These are in the pre-x86 merge form; I'll update them once the merge
goes into git.
Quick overview:
- remove some dead code in arch/i386/mm/init.c
- clean up some duplicate includes
- when sending an IPI, yield the vcpu if the destination doesn't have
2007 Oct 12
10
[PATCH 00/10] REVIEW: Xen patches for 2.6.24
This is my current set of updates to Xen for 2.6.24. This is largely
a bugfix set, and a couple of them are also relevent to 2.6.23.
These are in the pre-x86 merge form; I'll update them once the merge
goes into git.
Quick overview:
- remove some dead code in arch/i386/mm/init.c
- clean up some duplicate includes
- when sending an IPI, yield the vcpu if the destination doesn't have
2007 Apr 18
1
[PATCH] Lguest32, use guest page tables to find paddr for emulated instructions
...-2.6.21-rc5-mm2.orig/drivers/lguest/lg.h
+++ linux-2.6.21-rc5-mm2/drivers/lguest/lg.h
@@ -218,6 +218,7 @@ void guest_set_pte(struct lguest *lg, un
void map_hypervisor_in_guest(struct lguest *lg, struct lguest_pages *pages);
int demand_page(struct lguest *info, unsigned long cr2, int write);
void pin_page(struct lguest *lg, unsigned long vaddr);
+unsigned long lguest_find_guest_paddr(struct lguest *lg, unsigned long vaddr);
/* lguest_user.c: */
int lguest_device_init(void);
Index: linux-2.6.21-rc5-mm2/drivers/lguest/page_tables.c
=================================================================...
2007 Apr 18
1
[PATCH] Lguest32, use guest page tables to find paddr for emulated instructions
...-2.6.21-rc5-mm2.orig/drivers/lguest/lg.h
+++ linux-2.6.21-rc5-mm2/drivers/lguest/lg.h
@@ -218,6 +218,7 @@ void guest_set_pte(struct lguest *lg, un
void map_hypervisor_in_guest(struct lguest *lg, struct lguest_pages *pages);
int demand_page(struct lguest *info, unsigned long cr2, int write);
void pin_page(struct lguest *lg, unsigned long vaddr);
+unsigned long lguest_find_guest_paddr(struct lguest *lg, unsigned long vaddr);
/* lguest_user.c: */
int lguest_device_init(void);
Index: linux-2.6.21-rc5-mm2/drivers/lguest/page_tables.c
=================================================================...
2007 May 09
1
[patch 3/9] lguest: the host code
...13 || num == 7 || num == LGUEST_TRAP_ENTRY)
+ return 0;
+
+ /* Interrupt gates (0xE) or not present (0x0) can't go direct. */
+ return idt_type(trap->a, trap->b) == 0xF;
+}
+
+void pin_stack_pages(struct lguest *lg)
+{
+ unsigned int i;
+
+ for (i = 0; i < lg->stack_pages; i++)
+ pin_page(lg, lg->esp1 - i * PAGE_SIZE);
+}
+
+void guest_set_stack(struct lguest *lg, u32 seg, u32 esp, unsigned int pages)
+{
+ /* You cannot have a stack segment with priv level 0. */
+ if ((seg & 0x3) != GUEST_PL)
+ kill_guest(lg, "bad stack segment %i", seg);
+ if (pages > 2)
+ ki...
2007 May 09
1
[patch 3/9] lguest: the host code
...13 || num == 7 || num == LGUEST_TRAP_ENTRY)
+ return 0;
+
+ /* Interrupt gates (0xE) or not present (0x0) can't go direct. */
+ return idt_type(trap->a, trap->b) == 0xF;
+}
+
+void pin_stack_pages(struct lguest *lg)
+{
+ unsigned int i;
+
+ for (i = 0; i < lg->stack_pages; i++)
+ pin_page(lg, lg->esp1 - i * PAGE_SIZE);
+}
+
+void guest_set_stack(struct lguest *lg, u32 seg, u32 esp, unsigned int pages)
+{
+ /* You cannot have a stack segment with priv level 0. */
+ if ((seg & 0x3) != GUEST_PL)
+ kill_guest(lg, "bad stack segment %i", seg);
+ if (pages > 2)
+ ki...
2007 Oct 15
13
[PATCH 00/12] xen/paravirt_ops patches for 2.6.24
Hi Linus,
Here's a set of patches to update paravirt_ops and Xen for 2.6.24
A quick overview of the patchset:
paravirt_ops:
Remove the monolithic paravirt_ops structure, and replace it with
smaller structures of related functions. Also, clean up the handling
of lazy mode to make it easier to implement.
x86/mm/init.c: remove a chunk of dead code
Xen:
- remove duplicate includes
-
2007 Oct 15
13
[PATCH 00/12] xen/paravirt_ops patches for 2.6.24
Hi Linus,
Here's a set of patches to update paravirt_ops and Xen for 2.6.24
A quick overview of the patchset:
paravirt_ops:
Remove the monolithic paravirt_ops structure, and replace it with
smaller structures of related functions. Also, clean up the handling
of lazy mode to make it easier to implement.
x86/mm/init.c: remove a chunk of dead code
Xen:
- remove duplicate includes
-
2007 Oct 15
13
[PATCH 00/12] xen/paravirt_ops patches for 2.6.24
Hi Linus,
Here's a set of patches to update paravirt_ops and Xen for 2.6.24
A quick overview of the patchset:
paravirt_ops:
Remove the monolithic paravirt_ops structure, and replace it with
smaller structures of related functions. Also, clean up the handling
of lazy mode to make it easier to implement.
x86/mm/init.c: remove a chunk of dead code
Xen:
- remove duplicate includes
-
2009 Jun 05
1
[PATCH] lguest: PAE support
...+
/* Check the flags on the pte entry itself: it must be present and
* writable. */
- flags = pte_flags(*(spte_addr(*spgd, vaddr)));
+ flags = pte_flags(*(spte_addr(cpu, *spgd, vaddr)));
return (flags & (_PAGE_PRESENT|_PAGE_RW)) == (_PAGE_PRESENT|_PAGE_RW);
}
@@ -322,6 +440,41 @@ void pin_page(struct lg_cpu *cpu, unsigned long vaddr)
kill_guest(cpu, "bad stack page %#lx", vaddr);
}
+#ifdef CONFIG_X86_PAE
+static void release_pmd(pmd_t *spmd)
+{
+ /* If the entry's not present, there's nothing to release. */
+ if (pmd_flags(*spmd) & _PAGE_PRESENT) {
+ unsigne...
2009 Jun 05
1
[PATCH] lguest: PAE support
...+
/* Check the flags on the pte entry itself: it must be present and
* writable. */
- flags = pte_flags(*(spte_addr(*spgd, vaddr)));
+ flags = pte_flags(*(spte_addr(cpu, *spgd, vaddr)));
return (flags & (_PAGE_PRESENT|_PAGE_RW)) == (_PAGE_PRESENT|_PAGE_RW);
}
@@ -322,6 +440,41 @@ void pin_page(struct lg_cpu *cpu, unsigned long vaddr)
kill_guest(cpu, "bad stack page %#lx", vaddr);
}
+#ifdef CONFIG_X86_PAE
+static void release_pmd(pmd_t *spmd)
+{
+ /* If the entry's not present, there's nothing to release. */
+ if (pmd_flags(*spmd) & _PAGE_PRESENT) {
+ unsigne...
2009 Apr 16
1
NULL pointer dereference at __switch_to() ( __unlazy_fpu ) with lguest PAE patch
...+
/* Check the flags on the pte entry itself: it must be present and
* writable. */
- flags = pte_flags(*(spte_addr(*spgd, vaddr)));
+ flags = pte_flags(*(spte_addr(cpu, *spgd, vaddr)));
return (flags & (_PAGE_PRESENT|_PAGE_RW)) == (_PAGE_PRESENT|_PAGE_RW);
}
@@ -322,8 +439,45 @@ void pin_page(struct lg_cpu *cpu, unsigned long vaddr)
kill_guest(cpu, "bad stack page %#lx", vaddr);
}
+#ifdef CONFIG_X86_PAE
+static void release_pmd(pmd_t *spmd)
+{
+ /* If the entry's not present, there's nothing to release. */
+ if (pmd_flags(*spmd) & _PAGE_PRESENT) {
+ unsigne...
2009 Apr 16
1
NULL pointer dereference at __switch_to() ( __unlazy_fpu ) with lguest PAE patch
...+
/* Check the flags on the pte entry itself: it must be present and
* writable. */
- flags = pte_flags(*(spte_addr(*spgd, vaddr)));
+ flags = pte_flags(*(spte_addr(cpu, *spgd, vaddr)));
return (flags & (_PAGE_PRESENT|_PAGE_RW)) == (_PAGE_PRESENT|_PAGE_RW);
}
@@ -322,8 +439,45 @@ void pin_page(struct lg_cpu *cpu, unsigned long vaddr)
kill_guest(cpu, "bad stack page %#lx", vaddr);
}
+#ifdef CONFIG_X86_PAE
+static void release_pmd(pmd_t *spmd)
+{
+ /* If the entry's not present, there's nothing to release. */
+ if (pmd_flags(*spmd) & _PAGE_PRESENT) {
+ unsigne...