[Xen-changelog] [xen-unstable] [IA64] fix domain_flush_vtlb_all()

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User awilliam@xxxxxxxxxxxx
# Date 1168560205 25200
# Node ID 9cbb1d6fb34ab5b831c78a3b3c8e0382739a624d
# Parent  91be8436952d82eacd7e0db3aece8858c3a53150
[IA64] fix domain_flush_vtlb_all()

It might called by another domain's vcpu.

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
---
 xen/arch/ia64/xen/mm.c          |    8 ++++----
 xen/arch/ia64/xen/vhpt.c        |    5 +++--
 xen/include/asm-ia64/tlbflush.h |    2 +-
 3 files changed, 8 insertions(+), 7 deletions(-)

diff -r 91be8436952d -r 9cbb1d6fb34a xen/arch/ia64/xen/mm.c
--- a/xen/arch/ia64/xen/mm.c    Wed Jan 10 10:37:41 2007 -0700
+++ b/xen/arch/ia64/xen/mm.c    Thu Jan 11 17:03:25 2007 -0700
@@ -972,7 +972,7 @@ ioports_deny_access(struct domain *d, un
         // clear pte
         old_pte = ptep_get_and_clear(mm, mpaddr, pte);
     }
-    domain_flush_vtlb_all();
+    domain_flush_vtlb_all(d);
     return 0;
 }
 
@@ -1730,7 +1730,7 @@ domain_page_flush_and_put(struct domain*
 #ifndef CONFIG_XEN_IA64_TLB_TRACK
     //XXX sledgehammer.
     //    flush finer range.
-    domain_flush_vtlb_all();
+    domain_flush_vtlb_all(d);
     put_page(page);
 #else
     switch (tlb_track_search_and_remove(d->arch.tlb_track,
@@ -1749,7 +1749,7 @@ domain_page_flush_and_put(struct domain*
          * queue the page and flush vTLB only once.
          * I.e. The caller must call dfree_flush() explicitly.
          */
-        domain_flush_vtlb_all();
+        domain_flush_vtlb_all(d);
         put_page(page);
         break;
     case TLB_TRACK_NOT_FOUND:
@@ -1783,7 +1783,7 @@ domain_page_flush_and_put(struct domain*
          * So we abondaned to track virtual addresses.
          * full vTLB flush is necessary.
          */
-        domain_flush_vtlb_all();
+        domain_flush_vtlb_all(d);
         put_page(page);
         break;
     case TLB_TRACK_AGAIN:
diff -r 91be8436952d -r 9cbb1d6fb34a xen/arch/ia64/xen/vhpt.c
--- a/xen/arch/ia64/xen/vhpt.c  Wed Jan 10 10:37:41 2007 -0700
+++ b/xen/arch/ia64/xen/vhpt.c  Thu Jan 11 17:03:25 2007 -0700
@@ -258,12 +258,13 @@ static void __vcpu_flush_vtlb_all(void *
        vcpu_flush_vtlb_all((struct vcpu*)vcpu);
 }
 
-void domain_flush_vtlb_all (void)
+// caller must incremented reference count to d somehow.
+void domain_flush_vtlb_all(struct domain* d)
 {
        int cpu = smp_processor_id ();
        struct vcpu *v;
 
-       for_each_vcpu (current->domain, v) {
+       for_each_vcpu(d, v) {
                if (!test_bit(_VCPUF_initialised, &v->vcpu_flags))
                        continue;
 
diff -r 91be8436952d -r 9cbb1d6fb34a xen/include/asm-ia64/tlbflush.h
--- a/xen/include/asm-ia64/tlbflush.h   Wed Jan 10 10:37:41 2007 -0700
+++ b/xen/include/asm-ia64/tlbflush.h   Thu Jan 11 17:03:25 2007 -0700
@@ -17,7 +17,7 @@ void vcpu_flush_tlb_vhpt_range (u64 vadr
 void vcpu_flush_tlb_vhpt_range (u64 vadr, u64 log_range);
 
 /* Global all flush of vTLB  */
-void domain_flush_vtlb_all (void);
+void domain_flush_vtlb_all(struct domain *d);
 
 /* Global range-flush of vTLB.  */
 void domain_flush_vtlb_range (struct domain *d, u64 vadr, u64 addr_range);

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