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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] dom0 runs well in shadow translate mode!
ChangeSet 1.1236.32.11, 2005/03/18 17:01:47+00:00, mafetter@xxxxxxxxxxxxxxxx
dom0 runs well in shadow translate mode!
Signed-off-by: michael.fetterman@xxxxxxxxxxxx
arch/x86/audit.c | 11 +
arch/x86/domain.c | 2
arch/x86/extable.c | 9 +
arch/x86/mm.c | 51 +++----
arch/x86/shadow.c | 243 ++++++++++++++++++++---------------
arch/x86/vmx.c | 4
arch/x86/x86_32/domain_build.c | 14 +-
arch/x86/x86_32/domain_page.c | 8 -
arch/x86/x86_32/traps.c | 2
common/page_alloc.c | 9 +
include/asm-x86/mm.h | 57 +++++++-
include/asm-x86/shadow.h | 177 ++++++++++++++++++++-----
include/asm-x86/vmx_platform.h | 3
include/asm-x86/x86_32/domain_page.h | 18 ++
include/xen/perfc_defn.h | 8 +
include/xen/sched.h | 1
16 files changed, 437 insertions(+), 180 deletions(-)
diff -Nru a/xen/arch/x86/audit.c b/xen/arch/x86/audit.c
--- a/xen/arch/x86/audit.c 2005-04-05 12:12:50 -04:00
+++ b/xen/arch/x86/audit.c 2005-04-05 12:12:50 -04:00
@@ -36,7 +36,7 @@
static int l1, l2, oos_count, page_count;
#define FILE_AND_LINE 0
-//#define MFN_TO_WATCH 0x4700
+//#define MFN2_TO_WATCH 0x1d8
#if FILE_AND_LINE
#define adjust(_p, _a) _adjust((_p), (_a), __FILE__, __LINE__)
@@ -56,10 +56,10 @@
void _adjust(struct pfn_info *page, int adjtype ADJUST_EXTRA_ARGS)
{
-#ifdef MFN_TO_WATCH
- if (page_to_pfn(page) == MFN_TO_WATCH)
+#ifdef MFN2_TO_WATCH
+ if (page_to_pfn(page) == MFN2_TO_WATCH)
{
- APRINTK("adjust(mfn=%p, dir=%d, adjtype=%d) MFN_TO_WATCH",
+ APRINTK("adjust(mfn=%p, dir=%d, adjtype=%d)",
page_to_pfn(page), dir, adjtype);
}
#endif
@@ -547,6 +547,9 @@
adjust_oos_list();
adjust_shadow_tables();
}
+
+ //printk("d->shared_info=%p __pa()=%p\n", d->shared_info,
__pa(d->shared_info));
+ adjust(virt_to_page(d->shared_info), 1);
return errors;
}
diff -Nru a/xen/arch/x86/domain.c b/xen/arch/x86/domain.c
--- a/xen/arch/x86/domain.c 2005-04-05 12:12:49 -04:00
+++ b/xen/arch/x86/domain.c 2005-04-05 12:12:50 -04:00
@@ -238,7 +238,7 @@
d->shared_info = (void *)alloc_xenheap_page();
memset(d->shared_info, 0, PAGE_SIZE);
ed->vcpu_info = &d->shared_info->vcpu_data[ed->eid];
- SHARE_PFN_WITH_DOMAIN(virt_to_page(d->shared_info), d);
+ SHARE_PFN_WITH_DOMAIN2(virt_to_page(d->shared_info), d);
machine_to_phys_mapping[virt_to_phys(d->shared_info) >>
PAGE_SHIFT] = INVALID_M2P_ENTRY;
diff -Nru a/xen/arch/x86/extable.c b/xen/arch/x86/extable.c
--- a/xen/arch/x86/extable.c 2005-04-05 12:12:51 -04:00
+++ b/xen/arch/x86/extable.c 2005-04-05 12:12:51 -04:00
@@ -3,6 +3,11 @@
#include <xen/spinlock.h>
#include <asm/uaccess.h>
+#ifdef PERF_COUNTERS
+#include <xen/sched.h>
+#include <xen/perfc.h>
+#endif
+
extern struct exception_table_entry __start___ex_table[];
extern struct exception_table_entry __stop___ex_table[];
extern struct exception_table_entry __start___pre_ex_table[];
@@ -69,5 +74,9 @@
unsigned long fixup = search_one_table(
__start___pre_ex_table, __stop___pre_ex_table-1, addr);
DPRINTK("Pre-exception: %p -> %p\n", addr, fixup);
+#ifdef PERF_COUNTERS
+ if ( fixup )
+ perfc_incrc(exception_fixed);
+#endif
return fixup;
}
diff -Nru a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
--- a/xen/arch/x86/mm.c 2005-04-05 12:12:50 -04:00
+++ b/xen/arch/x86/mm.c 2005-04-05 12:12:51 -04:00
@@ -262,7 +262,7 @@
gpfn = l1_pgentry_to_pfn(mk_l1_pgentry(l1e));
gmfn = __gpfn_to_mfn(d, gpfn);
- if ( unlikely(!gmfn) )
+ if ( unlikely(!VALID_MFN(gmfn)) )
return 0;
if ( unlikely(shadow_mode_enabled(d)) )
@@ -1088,7 +1088,7 @@
}
-void put_page_type(struct pfn_info *page)
+void _put_page_type(struct pfn_info *page)
{
u32 nx, x, y = page->u.inuse.type_info;
@@ -1143,7 +1143,7 @@
}
-int get_page_type(struct pfn_info *page, u32 type)
+int _get_page_type(struct pfn_info *page, u32 type)
{
u32 nx, x, y = page->u.inuse.type_info;
@@ -1286,8 +1286,7 @@
unsigned int cmd = val & MMUEXT_CMD_MASK, type;
struct exec_domain *ed = current;
struct domain *d = ed->domain, *e;
- unsigned long gpfn = ptr >> PAGE_SHIFT;
- unsigned long mfn = __gpfn_to_mfn(d, gpfn);
+ unsigned long mfn = ptr >> PAGE_SHIFT;
struct pfn_info *page = &frame_table[mfn];
u32 x, y, _d, _nd;
domid_t domid;
@@ -1304,15 +1303,6 @@
type = PGT_l1_page_table | PGT_va_mutable;
pin_page:
- if ( unlikely(percpu_info[cpu].foreign &&
- (shadow_mode_translate(d) ||
- shadow_mode_translate(percpu_info[cpu].foreign))) )
- {
- // oops -- we should be using the foreign domain's P2M
- mfn = __gpfn_to_mfn(FOREIGNDOM, gpfn);
- page = &frame_table[mfn];
- }
-
if ( shadow_mode_enabled(FOREIGNDOM) )
type = PGT_writable_page;
@@ -1349,15 +1339,6 @@
#endif /* __x86_64__ */
case MMUEXT_UNPIN_TABLE:
- if ( unlikely(percpu_info[cpu].foreign &&
- (shadow_mode_translate(d) ||
- shadow_mode_translate(percpu_info[cpu].foreign))) )
- {
- // oops -- we should be using the foreign domain's P2M
- mfn = __gpfn_to_mfn(FOREIGNDOM, gpfn);
- page = &frame_table[mfn];
- }
-
if ( unlikely(!(okay = get_page_from_pagenr(mfn, FOREIGNDOM))) )
{
MEM_LOG("mfn %p bad domain (dom=%p)",
@@ -1723,9 +1704,7 @@
cleanup_writable_pagetable(d);
if ( unlikely(shadow_mode_enabled(d)) )
- {
check_pagetable(ed, "pre-mmu"); /* debug */
- }
/*
* If we are resuming after preemption, read how much work we have already
@@ -1783,8 +1762,7 @@
}
cmd = req.ptr & (sizeof(l1_pgentry_t)-1);
- gpfn = req.ptr >> PAGE_SHIFT;
- mfn = __gpfn_to_mfn(d, gpfn);
+ mfn = req.ptr >> PAGE_SHIFT;
okay = 0;
@@ -1867,6 +1845,8 @@
if ( shadow_mode_log_dirty(d) )
__mark_dirty(d, mfn);
+ gpfn = __mfn_to_gpfn(d, mfn);
+ ASSERT(gpfn);
if ( page_is_page_table(page) )
shadow_mark_mfn_out_of_sync(ed, gpfn, mfn);
}
@@ -1886,6 +1866,21 @@
break;
case MMU_MACHPHYS_UPDATE:
+
+ // HACK ALERT... This about this later...
+ //
+ if ( unlikely(shadow_mode_translate(FOREIGNDOM) && IS_PRIV(d)) )
+ {
+ rc = FOREIGNDOM->next_io_page++;
+ printk("privileged guest dom%d requests mfn=%p for dom%d, gets
pfn=%p\n",
+ d->id, mfn, FOREIGNDOM->id, rc);
+ set_machinetophys(mfn, rc);
+ set_p2m_entry(FOREIGNDOM, rc, mfn);
+ okay = 1;
+ break;
+ }
+ BUG();
+
if ( unlikely(!get_page_from_pagenr(mfn, FOREIGNDOM)) )
{
MEM_LOG("Could not get page for mach->phys update");
@@ -2250,7 +2245,7 @@
LOCK_BIGLOCK(dom);
- if ( !(mfn = __gpfn_to_mfn(dom, gpfn)) ) {
+ if ( !VALID_MFN(mfn = __gpfn_to_mfn(dom, gpfn)) ) {
UNLOCK_BIGLOCK(dom);
return -EINVAL;
}
diff -Nru a/xen/arch/x86/shadow.c b/xen/arch/x86/shadow.c
--- a/xen/arch/x86/shadow.c 2005-04-05 12:12:49 -04:00
+++ b/xen/arch/x86/shadow.c 2005-04-05 12:12:49 -04:00
@@ -191,14 +191,6 @@
unsigned long smfn;
int pin = 0;
- if ( (psh_type != PGT_snapshot) &&
- !shadow_promote(d, gpfn, gmfn, psh_type) )
- {
- FSH_LOG("promotion of pfn=%p mfn=%p failed! external gnttab refs?\n",
- gpfn, gmfn);
- return 0;
- }
-
page = alloc_domheap_page(NULL);
if ( unlikely(page == NULL) )
{
@@ -222,11 +214,15 @@
switch ( psh_type )
{
case PGT_l1_shadow:
+ if ( !shadow_promote(d, gpfn, gmfn, psh_type) )
+ goto oom;
perfc_incr(shadow_l1_pages);
d->arch.shadow_page_count++;
break;
case PGT_l2_shadow:
+ if ( !shadow_promote(d, gpfn, gmfn, psh_type) )
+ goto oom;
perfc_incr(shadow_l2_pages);
d->arch.shadow_page_count++;
if ( PGT_l2_page_table == PGT_root_page_table )
@@ -235,13 +231,16 @@
break;
case PGT_hl2_shadow:
+ // Treat an hl2 as an L1 for purposes of promotion.
+ // For external mode domains, treat them as an L2 for purposes of
+ // pinning.
+ //
+ if ( !shadow_promote(d, gpfn, gmfn, PGT_l1_shadow) )
+ goto oom;
perfc_incr(hl2_table_pages);
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