From: awilliam@xenbuild2.aw <awilliam@xenbuild2.aw>
Date: Fri, 12 Jan 2007 00:03:25 +0000 (-0700)
Subject: [IA64] fix domain_flush_vtlb_all()
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~15417
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=99954e535e5c835c14a592ad18217b293b64b3e7;p=xen.git

[IA64] fix domain_flush_vtlb_all()

It might called by another domain's vcpu.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
---

diff --git a/xen/arch/ia64/xen/mm.c b/xen/arch/ia64/xen/mm.c
index b560abf5f8..aec322870c 100644
--- a/xen/arch/ia64/xen/mm.c
+++ b/xen/arch/ia64/xen/mm.c
@@ -972,7 +972,7 @@ ioports_deny_access(struct domain *d, unsigned long fp, unsigned long lp)
         // 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* d, unsigned long mpaddr,
 #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* d, unsigned long mpaddr,
          * 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* d, unsigned long mpaddr,
          * 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 --git a/xen/arch/ia64/xen/vhpt.c b/xen/arch/ia64/xen/vhpt.c
index 0ba1f93a9b..c8846efc45 100644
--- a/xen/arch/ia64/xen/vhpt.c
+++ b/xen/arch/ia64/xen/vhpt.c
@@ -258,12 +258,13 @@ static void __vcpu_flush_vtlb_all(void *vcpu)
 	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 --git a/xen/include/asm-ia64/tlbflush.h b/xen/include/asm-ia64/tlbflush.h
index 49ff463b11..a659f6a0e4 100644
--- a/xen/include/asm-ia64/tlbflush.h
+++ b/xen/include/asm-ia64/tlbflush.h
@@ -17,7 +17,7 @@ void vcpu_flush_vtlb_all(struct vcpu *v);
 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);