[Xen-changelog] More pal_flush_cache calls for split cache machines (by Anthony Xu)

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

# HG changeset patch
# User djm@xxxxxxxxxxxxxxx
# Node ID 72f51528d55a9b99f8c7737b34bf6f370de0de7f
# Parent  545ba1b126ca2f06861c3982c4da33dd310e7717
More pal_flush_cache calls for split cache machines (by Anthony Xu)

diff -r 545ba1b126ca -r 72f51528d55a xen/arch/ia64/xen/domain.c
--- a/xen/arch/ia64/xen/domain.c        Tue Dec 20 20:11:17 2005
+++ b/xen/arch/ia64/xen/domain.c        Wed Dec 21 14:27:09 2005
@@ -272,17 +272,6 @@
        printf("arch_set_info_guest\n");
        if ( test_bit(_VCPUF_initialised, &v->vcpu_flags) )
             return 0;
-
-#ifdef CONFIG_IA64_SPLIT_CACHE
-       /* Sync d/i cache conservatively */
-       if (!running_on_sim) {
-           ret = ia64_pal_cache_flush(4, 0, &progress, NULL);
-           if (ret != PAL_STATUS_SUCCESS)
-               panic("PAL CACHE FLUSH failed for domain.\n");
-           printk("Sync i/d cache for dom0 image SUCC\n");
-       }
-#endif
-
        if (c->flags & VGCF_VMX_GUEST) {
            if (!vmx_enabled) {
                printk("No VMX hardware feature for vmx domain.\n");
@@ -299,6 +288,16 @@
        d->arch.sys_pgnr = c->sys_pgnr;
        new_thread(v, regs->cr_iip, 0, 0);
 
+#ifdef CONFIG_IA64_SPLIT_CACHE
+    /* Sync d/i cache conservatively */
+    if (!running_on_sim) {
+        ret = ia64_pal_cache_flush(4, 0, &progress, NULL);
+        if ((ret!=PAL_STATUS_SUCCESS)&& (ret!=PAL_STATUS_UNIMPLEMENTED))
+            printk("PAL CACHE FLUSH failed for dom0.\n");
+        else
+            printk("Sync i/d cache for guest SUCC\n");
+    }
+#endif
        v->vcpu_info->arch.evtchn_vector = c->vcpu.evtchn_vector;
        if ( c->vcpu.privregs && copy_from_user(v->arch.privregs,
                           c->vcpu.privregs, sizeof(mapped_regs_t))) {
@@ -898,13 +897,6 @@
        //if ( initrd_len != 0 )
        //    memcpy((void *)vinitrd_start, initrd_start, initrd_len);
 
-       /* Sync d/i cache conservatively */
-       if (!running_on_sim) {
-           ret = ia64_pal_cache_flush(4, 0, &progress, NULL);
-           if (ret != PAL_STATUS_SUCCESS)
-               panic("PAL CACHE FLUSH failed for dom0.\n");
-           printk("Sync i/d cache for dom0 image SUCC\n");
-       }
 
        /* Set up start info area. */
        si = (start_info_t *)alloc_xenheap_page();
@@ -958,6 +950,16 @@
 
        new_thread(v, pkern_entry, 0, 0);
        physdev_init_dom0(d);
+#ifdef CONFIG_IA64_SPLIT_CACHE
+    /* Sync d/i cache conservatively */
+    if (!running_on_sim) {
+        ret = ia64_pal_cache_flush(4, 0, &progress, NULL);
+        if ((ret!=PAL_STATUS_SUCCESS)&& (ret!=PAL_STATUS_UNIMPLEMENTED))
+            printk("PAL CACHE FLUSH failed for dom0.\n");
+        else
+            printk("Sync i/d cache for guest SUCC\n");
+    }
+#endif
 
        // FIXME: Hack for keyboard input
 #ifdef CLONE_DOMAIN0
@@ -1016,6 +1018,16 @@
 #endif
        new_thread(v, pkern_entry, 0, 0);
        printk("new_thread returns\n");
+#ifdef CONFIG_IA64_SPLIT_CACHE
+    /* Sync d/i cache conservatively */
+    if (!running_on_sim) {
+        ret = ia64_pal_cache_flush(4, 0, &progress, NULL);
+        if ((ret!=PAL_STATUS_SUCCESS)&& (ret!=PAL_STATUS_UNIMPLEMENTED))
+            printk("PAL CACHE FLUSH failed for dom0.\n");
+        else
+            printk("Sync i/d cache for guest SUCC\n");
+    }
+#endif
        __set_bit(0x30, VCPU(v, delivery_mask));
 
        return 0;
@@ -1029,6 +1041,16 @@
                v->domain->domain_id);
        loaddomainelfimage(v->domain,v->domain->arch.image_start);
        new_thread(v, v->domain->arch.entry, 0, 0);
+#ifdef CONFIG_IA64_SPLIT_CACHE
+    /* Sync d/i cache conservatively */
+    if (!running_on_sim) {
+        ret = ia64_pal_cache_flush(4, 0, &progress, NULL);
+        if ((ret!=PAL_STATUS_SUCCESS)&& (ret!=PAL_STATUS_UNIMPLEMENTED))
+            printk("PAL CACHE FLUSH failed for dom0.\n");
+        else
+            printk("Sync i/d cache for guest SUCC\n");
+    }
+#endif
 }
 #endif
 

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