Displaying 12 results from an estimated 12 matches for "pin_stack_pag".
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pin_stack_pages
2007 Apr 27
0
[PATCH] lguest simplification: don't pin guest trap handlers
...eletions(-)
===================================================================
--- a/drivers/lguest/interrupts_and_traps.c
+++ b/drivers/lguest/interrupts_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_page...
2007 Apr 27
0
[PATCH] lguest simplification: don't pin guest trap handlers
...eletions(-)
===================================================================
--- a/drivers/lguest/interrupts_and_traps.c
+++ b/drivers/lguest/interrupts_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_page...
2009 Mar 26
1
[PATCH 3/5] lguest: avoid accidental recycling of pgdir pages
...est_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.c
+++ b/drivers/lguest/page_tables.c
@@ -448,6 +571,22 @@ void guest_new_pagetable(struct lg_cpu *cpu, unsigned long pgtable)
pin_stack_pages(cpu);
}
+/* The Guest tells us when a page is no longer being used as a pagetable.
+ * Without this there can be a subtle bug where the same page gets re-used
+ * for a different process, and we think it's the same one as the one we have
+ * in our little pgdir cache. */
+void invalidate_p...
2009 Mar 26
1
[PATCH 3/5] lguest: avoid accidental recycling of pgdir pages
...est_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.c
+++ b/drivers/lguest/page_tables.c
@@ -448,6 +571,22 @@ void guest_new_pagetable(struct lg_cpu *cpu, unsigned long pgtable)
pin_stack_pages(cpu);
}
+/* The Guest tells us when a page is no longer being used as a pagetable.
+ * Without this there can be a subtle bug where the same page gets re-used
+ * for a different process, and we think it's the same one as the one we have
+ * in our little pgdir cache. */
+void invalidate_p...
2007 May 09
1
[patch 3/9] lguest: the host code
...(in/out emulation) and device not
+ available (TS handling), and hypercall */
+ if (num == 14 || num == 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 &...
2007 May 09
1
[patch 3/9] lguest: the host code
...(in/out emulation) and device not
+ available (TS handling), and hypercall */
+ if (num == 14 || num == 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 &...
2007 Aug 08
13
[PATCH 0/7] Modify lguest32 to make room for lguest64
Hi all,
I've been working on lguest64 and in order to do this, I had to move
a lot of the i386 specific out of the way. Well, the lguest64 port
is still not ready to display, but before Rusty makes too many changes
I would like this in upstream so I don't have to keep repeating my
changes :-)
So this patch series moves lguest32 out of the way for other archs.
-- Steve
2007 Aug 08
13
[PATCH 0/7] Modify lguest32 to make room for lguest64
Hi all,
I've been working on lguest64 and in order to do this, I had to move
a lot of the i386 specific out of the way. Well, the lguest64 port
is still not ready to display, but before Rusty makes too many changes
I would like this in upstream so I don't have to keep repeating my
changes :-)
So this patch series moves lguest32 out of the way for other archs.
-- Steve
2007 Aug 08
7
[PATCH 0/5 -v2] Modify lguest32 to make room for lguest64 (version 2)
[
Changes since last version.
- Move lg.h to include/asm instead (suggested by Rusty Russel)
- All steps of the series compiles (suggested by Stephen Rothwell)
- Better ifdef header naming (suggested by Stephen Rothwell)
- Added Andi Kleen to CC (forgot to on V1)
]
Hi all,
I've been working on lguest64 and in order to do this, I had to move
a lot of the i386 specific out of the
2007 Aug 08
7
[PATCH 0/5 -v2] Modify lguest32 to make room for lguest64 (version 2)
[
Changes since last version.
- Move lg.h to include/asm instead (suggested by Rusty Russel)
- All steps of the series compiles (suggested by Stephen Rothwell)
- Better ifdef header naming (suggested by Stephen Rothwell)
- Added Andi Kleen to CC (forgot to on V1)
]
Hi all,
I've been working on lguest64 and in order to do this, I had to move
a lot of the i386 specific out of the
2007 Apr 18
1
[RFC/PATCH LGUEST X86_64 03/13] lguest64 core
...st_set_stack(struct lguest_vcpu *vcpu,
+ u64 rsp, unsigned int pages)
+{
+ /* You cannot have a stack segment with priv level 0. */
+ if (pages > 2)
+ kill_guest_dump(vcpu, "bad stack pages %u", pages);
+ vcpu->tss.rsp2 = rsp;
+ /* FIXME */
+// lg->stack_pages = pages;
+// pin_stack_pages(lg);
+}
+
+static DEFINE_MUTEX(hcall_print_lock);
+#define HCALL_PRINT_SIZ 1024
+static char hcall_print_buf[HCALL_PRINT_SIZ];
+
+/* Return true if DMA to host userspace now pending. */
+static int do_hcall(struct lguest_vcpu *vcpu)
+{
+ struct lguest_regs *regs = &vcpu->regs;
+ struct lgu...
2007 Apr 18
1
[RFC/PATCH LGUEST X86_64 03/13] lguest64 core
...st_set_stack(struct lguest_vcpu *vcpu,
+ u64 rsp, unsigned int pages)
+{
+ /* You cannot have a stack segment with priv level 0. */
+ if (pages > 2)
+ kill_guest_dump(vcpu, "bad stack pages %u", pages);
+ vcpu->tss.rsp2 = rsp;
+ /* FIXME */
+// lg->stack_pages = pages;
+// pin_stack_pages(lg);
+}
+
+static DEFINE_MUTEX(hcall_print_lock);
+#define HCALL_PRINT_SIZ 1024
+static char hcall_print_buf[HCALL_PRINT_SIZ];
+
+/* Return true if DMA to host userspace now pending. */
+static int do_hcall(struct lguest_vcpu *vcpu)
+{
+ struct lguest_regs *regs = &vcpu->regs;
+ struct lgu...