[Xen-changelog] [xen-unstable] x86/svm/asid: Introduce svm_invlpga()

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Christoph Egger <Christoph.Egger@xxxxxxx>
# Date 1302700499 -3600
# Node ID 3b2182100ba2fa5c4a3a450e473717e2300aa8f1
# Parent  2284c79b606ac14ef5c5bc2c1cce62188b5bd9ee
x86/svm/asid: Introduce svm_invlpga()

Signed-off-by: Christoph Egger <Christoph.Egger@xxxxxxx>
---


diff -r 2284c79b606a -r 3b2182100ba2 xen/include/asm-x86/hvm/svm/asid.h
--- a/xen/include/asm-x86/hvm/svm/asid.h        Wed Apr 13 14:14:32 2011 +0100
+++ b/xen/include/asm-x86/hvm/svm/asid.h        Wed Apr 13 14:14:59 2011 +0100
@@ -34,10 +34,7 @@
 {
 #if 0
     /* Optimization? */
-    asm volatile (".byte 0x0F,0x01,0xDF    \n"
-                  : /* output */
-                  : /* input */
-                  "a" (g_vaddr), "c"(v->arch.hvm_svm.vmcb->guest_asid) );
+    svm_invlpga(g_vaddr, v->arch.hvm_svm.vmcb->guest_asid);
 #endif
 
     /* Safe fallback. Take a new ASID. */
diff -r 2284c79b606a -r 3b2182100ba2 xen/include/asm-x86/hvm/svm/svm.h
--- a/xen/include/asm-x86/hvm/svm/svm.h Wed Apr 13 14:14:32 2011 +0100
+++ b/xen/include/asm-x86/hvm/svm/svm.h Wed Apr 13 14:14:59 2011 +0100
@@ -60,6 +60,15 @@
         : : "a" (__pa(vmcb)) : "memory" );
 }
 
+static inline void svm_invlpga(unsigned long vaddr, uint32_t asid)
+{
+    asm volatile (
+        ".byte 0x0f,0x01,0xdf"
+        : /* output */
+        : /* input */
+        "a" (vaddr), "c" (asid));
+}
+
 unsigned long *svm_msrbit(unsigned long *msr_bitmap, uint32_t msr);
 void __update_guest_eip(struct cpu_user_regs *regs, unsigned int inst_len);
 

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog