Merge branch 'wip-2.6.34' into old-private-masterarchived-private-master

1 files changed, 33 insertions, 16 deletions

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index dfbf70e65860..65d8d79b46a8 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -27,7 +27,10 @@
 #include <linux/page-flags.h>
 #include <linux/highmem.h>
 #include <linux/console.h>
+#include <linux/pci.h>
+#include <linux/gfp.h>
 
+#include <xen/xen.h>
 #include <xen/interface/xen.h>
 #include <xen/interface/version.h>
 #include <xen/interface/physdev.h>
@@ -48,6 +51,7 @@
 #include <asm/traps.h>
 #include <asm/setup.h>
 #include <asm/desc.h>
+#include <asm/pgalloc.h>
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 #include <asm/reboot.h>
@@ -138,24 +142,23 @@ static void xen_vcpu_setup(int cpu)
  */
 void xen_vcpu_restore(void)
 {
-        if (have_vcpu_info_placement) {
-                int cpu;
+        int cpu;
 
-                for_each_online_cpu(cpu) {
-                        bool other_cpu = (cpu != smp_processor_id());
+        for_each_online_cpu(cpu) {
+                bool other_cpu = (cpu != smp_processor_id());
 
-                        if (other_cpu &&
-                            HYPERVISOR_vcpu_op(VCPUOP_down, cpu, NULL))
-                                BUG();
+                if (other_cpu &&
+                    HYPERVISOR_vcpu_op(VCPUOP_down, cpu, NULL))
+                        BUG();
 
-                        xen_vcpu_setup(cpu);
+                xen_setup_runstate_info(cpu);
 
-                        if (other_cpu &&
-                            HYPERVISOR_vcpu_op(VCPUOP_up, cpu, NULL))
-                                BUG();
-                }
+                if (have_vcpu_info_placement)
+                        xen_vcpu_setup(cpu);
 
-                BUG_ON(!have_vcpu_info_placement);
+                if (other_cpu &&
+                    HYPERVISOR_vcpu_op(VCPUOP_up, cpu, NULL))
+                        BUG();
         }
 }
 
@@ -1093,10 +1096,14 @@ asmlinkage void __init xen_start_kernel(void)
 
         __supported_pte_mask |= _PAGE_IOMAP;
 
-#ifdef CONFIG_X86_64
+        /*
+         * Prevent page tables from being allocated in highmem, even
+         * if CONFIG_HIGHPTE is enabled.
+         */
+        __userpte_alloc_gfp &= ~__GFP_HIGHMEM;
+
         /* Work out if we support NX */
-        check_efer();
-#endif
+        x86_configure_nx();
 
         xen_setup_features();
 
@@ -1152,9 +1159,13 @@ asmlinkage void __init xen_start_kernel(void)
 
         /* keep using Xen gdt for now; no urgent need to change it */
 
+#ifdef CONFIG_X86_32
         pv_info.kernel_rpl = 1;
         if (xen_feature(XENFEAT_supervisor_mode_kernel))
                 pv_info.kernel_rpl = 0;
+#else
+        pv_info.kernel_rpl = 0;
+#endif
 
         /* set the limit of our address space */
         xen_reserve_top();
@@ -1178,10 +1189,16 @@ asmlinkage void __init xen_start_kernel(void)
                 add_preferred_console("xenboot", 0, NULL);
                 add_preferred_console("tty", 0, NULL);
                 add_preferred_console("hvc", 0, NULL);
+        } else {
+                /* Make sure ACS will be enabled */
+                pci_request_acs();
         }
+                
 
         xen_raw_console_write("about to get started...\n");
 
+        xen_setup_runstate_info(0);
+
         /* Start the world */
 #ifdef CONFIG_X86_32
         i386_start_kernel();