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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [patch] pae shadow preparation
Hi,
Really just basic preparation: switch over PAE builds to the new
shadow code, drop old dummy functions, add (fewer) new ones.
Gerd
Index: xen/include/asm-x86/shadow_public.h
===================================================================
--- xen.orig/include/asm-x86/shadow_public.h 2005-07-28 11:31:39.000000000
+0200
+++ xen/include/asm-x86/shadow_public.h 2005-07-28 14:55:05.000000000 +0200
@@ -21,7 +21,7 @@
#ifndef _XEN_SHADOW_PUBLIC_H
#define _XEN_SHADOW_PUBLIC_H
-#if CONFIG_PAGING_LEVELS >= 4
+#if CONFIG_PAGING_LEVELS >= 3
#define MFN_PINNED(_x) (frame_table[_x].u.inuse.type_info & PGT_pinned)
extern int alloc_p2m_table(struct domain *d);
@@ -31,10 +31,6 @@ extern void shadow_sync_and_drop_referen
extern void shadow_drop_references(
struct domain *d, struct pfn_info *page);
-extern void shadow_l4_normal_pt_update(struct domain *d,
- unsigned long pa, l4_pgentry_t l4e,
- struct domain_mmap_cache *cache);
-
extern int shadow_set_guest_paging_levels(struct domain *d, int levels);
extern void release_out_of_sync_entry(
@@ -56,4 +52,10 @@ struct shadow_ops {
};
#endif
+#if CONFIG_PAGING_LEVELS >= 4
+extern void shadow_l4_normal_pt_update(struct domain *d,
+ unsigned long pa, l4_pgentry_t l4e,
+ struct domain_mmap_cache *cache);
+#endif
+
#endif
Index: xen/include/asm-x86/shadow_64.h
===================================================================
--- xen.orig/include/asm-x86/shadow_64.h 2005-07-28 11:31:39.000000000
+0200
+++ xen/include/asm-x86/shadow_64.h 2005-07-28 14:49:35.000000000 +0200
@@ -85,8 +85,10 @@ static inline int table_offset_64(unsig
return (((va) >> L2_PAGETABLE_SHIFT) & (L2_PAGETABLE_ENTRIES -
1));
case 3:
return (((va) >> L3_PAGETABLE_SHIFT) & (L3_PAGETABLE_ENTRIES -
1));
+#if CONFIG_PAGING_LEVELS >= 4
case 4:
return (((va) >> L4_PAGETABLE_SHIFT) & (L4_PAGETABLE_ENTRIES -
1));
+#endif
default:
//printk("<table_offset_64> level %d is too big\n", level);
return -1;
Index: xen/include/asm-x86/shadow.h
===================================================================
--- xen.orig/include/asm-x86/shadow.h 2005-07-28 11:31:39.000000000 +0200
+++ xen/include/asm-x86/shadow.h 2005-07-28 15:00:49.000000000 +0200
@@ -131,12 +131,12 @@ extern void shadow_l2_normal_pt_update(s
unsigned long pa, l2_pgentry_t l2e,
struct domain_mmap_cache *cache);
#if CONFIG_PAGING_LEVELS >= 3
+#include <asm/page-guest32.h>
extern void shadow_l3_normal_pt_update(struct domain *d,
unsigned long pa, l3_pgentry_t l3e,
struct domain_mmap_cache *cache);
#endif
#if CONFIG_PAGING_LEVELS >= 4
-#include <asm/page-guest32.h>
extern void shadow_l4_normal_pt_update(struct domain *d,
unsigned long pa, l4_pgentry_t l4e,
struct domain_mmap_cache *cache);
@@ -631,82 +631,6 @@ static inline void shadow_sync_and_drop_
}
#endif
-#if CONFIG_PAGING_LEVELS == 3
-/* dummy functions, PAE has no shadow support yet */
-
-static inline void
-__shadow_get_l2e(
- struct vcpu *v, unsigned long va, l2_pgentry_t *psl2e)
-{
- BUG();
-}
-
-static inline void
-__shadow_set_l2e(
- struct vcpu *v, unsigned long va, l2_pgentry_t value)
-{
- BUG();
-}
-
-static inline void
-__guest_get_l2e(
- struct vcpu *v, unsigned long va, l2_pgentry_t *pl2e)
-{
- BUG();
-}
-
-static inline void
-__guest_set_l2e(
- struct vcpu *v, unsigned long va, l2_pgentry_t value)
-{
- BUG();
-}
-
-static inline void shadow_drop_references(
- struct domain *d, struct pfn_info *page)
-{
- if ( likely(!shadow_mode_refcounts(d)) ||
- ((page->u.inuse.type_info & PGT_count_mask) == 0) )
- return;
- BUG();
-}
-
-static inline void shadow_sync_and_drop_references(
- struct domain *d, struct pfn_info *page)
-{
- if ( likely(!shadow_mode_refcounts(d)) )
- return;
- BUG();
-}
-
-static inline int l1pte_write_fault(
- struct vcpu *v, l1_pgentry_t *gpte_p, l1_pgentry_t *spte_p,
- unsigned long va)
-{
- BUG();
- return 42;
-}
-
-static inline int l1pte_read_fault(
- struct domain *d, l1_pgentry_t *gpte_p, l1_pgentry_t *spte_p)
-{
- BUG();
- return 42;
-}
-
-void static inline
-shadow_set_l1e(unsigned long va, l1_pgentry_t new_spte, int create_l1_shadow)
-{
- BUG();
-}
-
-static inline unsigned long gva_to_gpa(unsigned long gva)
-{
- BUG();
- return 42;
-}
-#endif
-
/************************************************************************/
/*
Index: xen/arch/x86/vmx_platform.c
===================================================================
--- xen.orig/arch/x86/vmx_platform.c 2005-07-28 11:31:39.000000000 +0200
+++ xen/arch/x86/vmx_platform.c 2005-07-28 15:04:13.000000000 +0200
@@ -32,7 +32,7 @@
#include <xen/lib.h>
#include <xen/sched.h>
#include <asm/current.h>
-#if CONFIG_PAGING_LEVELS >= 4
+#if CONFIG_PAGING_LEVELS >= 3
#include <asm/shadow_64.h>
#endif
#ifdef CONFIG_VMX
Index: xen/arch/x86/Makefile
===================================================================
--- xen.orig/arch/x86/Makefile 2005-07-28 11:31:39.000000000 +0200
+++ xen/arch/x86/Makefile 2005-07-28 14:31:44.000000000 +0200
@@ -13,11 +13,18 @@ OBJS := $(subst cpu/centaur.o,,$(OBJS))
OBJS := $(subst cpu/cyrix.o,,$(OBJS))
OBJS := $(subst cpu/rise.o,,$(OBJS))
OBJS := $(subst cpu/transmeta.o,,$(OBJS))
-OBJS := $(subst shadow32.o,,$(OBJS))
-else
-OBJS := $(subst shadow.o,,$(OBJS))
-OBJS := $(subst shadow_public.o,,$(OBJS))
-OBJS := $(subst shadow_xxx.o,,$(OBJS))
+endif
+
+OBJS := $(patsubst shadow%.o,,$(OBJS)) # drop all
+ifeq ($(TARGET_SUBARCH),x86_64)
+ OBJS += shadow.o shadow_public.o # x86_64: new code
+endif
+ifeq ($(TARGET_SUBARCH),x86_32)
+ ifneq ($(pae),n)
+ OBJS += shadow.o shadow_public.o # x86_32p: new code
+ else
+ OBJS += shadow32.o # x86_32: old code
+ endif
endif
OBJS := $(subst $(TARGET_SUBARCH)/asm-offsets.o,,$(OBJS))
Index: xen/arch/x86/shadow.c
===================================================================
--- xen.orig/arch/x86/shadow.c 2005-07-28 11:31:39.000000000 +0200
+++ xen/arch/x86/shadow.c 2005-07-28 15:06:59.000000000 +0200
@@ -41,7 +41,13 @@ extern void free_shadow_pages(struct dom
static void mark_shadows_as_reflecting_snapshot(struct domain *d, unsigned
long gpfn);
#endif
-#if CONFIG_PAGING_LEVELS >= 4
+#if CONFIG_PAGING_LEVELS == 3
+#include <asm/shadow_64.h>
+static unsigned long shadow_l3_table(
+ struct domain *d, unsigned long gpfn, unsigned long gmfn);
+#endif
+
+#if CONFIG_PAGING_LEVELS == 4
#include <asm/shadow_64.h>
static unsigned long shadow_l4_table(
struct domain *d, unsigned long gpfn, unsigned long gmfn);
@@ -1833,7 +1839,7 @@ static void shadow_update_pagetables(str
unsigned long gpfn = __mfn_to_gpfn(d, gmfn);
unsigned long smfn, old_smfn;
-#if defined (__i386__)
+#if CONFIG_PAGING_LEVELS == 2
unsigned long hl2mfn;
#endif
@@ -1890,7 +1896,7 @@ static void shadow_update_pagetables(str
v->arch.shadow_vtable = map_domain_page(smfn);
}
-#if defined (__i386__)
+#if CONFIG_PAGING_LEVELS == 2
/*
* arch.hl2_vtable
*/
@@ -1936,6 +1942,10 @@ static void shadow_update_pagetables(str
local_flush_tlb();
}
#endif
+
+#if CONFIG_PAGING_LEVELS == 3
+ /* FIXME: PAE code to be written */
+#endif
}
struct shadow_ops MODE_A_HANDLER = {
@@ -2427,6 +2437,7 @@ static unsigned long shadow_l3_table(
struct domain *d, unsigned long gpfn, unsigned long gmfn)
{
BUG(); /* not implemenated yet */
+ return 42;
}
#endif
Index: xen/arch/x86/vmx.c
===================================================================
--- xen.orig/arch/x86/vmx.c 2005-07-28 15:03:18.000000000 +0200
+++ xen/arch/x86/vmx.c 2005-07-28 15:03:40.000000000 +0200
@@ -38,7 +38,7 @@
#include <asm/vmx_vmcs.h>
#include <asm/vmx_intercept.h>
#include <asm/shadow.h>
-#if CONFIG_PAGING_LEVELS >= 4
+#if CONFIG_PAGING_LEVELS >= 3
#include <asm/shadow_64.h>
#endif
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