Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspe...

[pandora-kernel.git] / arch / x86 / xen / enlighten.c

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 63b83ce..44dcad4 100644 (file)
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -46,6 +46,7 @@
 #include <asm/paravirt.h>
 #include <asm/apic.h>
 #include <asm/page.h>
+#include <asm/xen/pci.h>
 #include <asm/xen/hypercall.h>
 #include <asm/xen/hypervisor.h>
 #include <asm/fixmap.h>
@@ -59,7 +60,6 @@
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 #include <asm/reboot.h>
-#include <asm/setup.h>
 #include <asm/stackprotector.h>
 #include <asm/hypervisor.h>
 
@@ -75,6 +75,11 @@ DEFINE_PER_CPU(struct vcpu_info, xen_vcpu_info);
 enum xen_domain_type xen_domain_type = XEN_NATIVE;
 EXPORT_SYMBOL_GPL(xen_domain_type);
 
+unsigned long *machine_to_phys_mapping = (void *)MACH2PHYS_VIRT_START;
+EXPORT_SYMBOL(machine_to_phys_mapping);
+unsigned int   machine_to_phys_order;
+EXPORT_SYMBOL(machine_to_phys_order);
+
 struct start_info *xen_start_info;
 EXPORT_SYMBOL_GPL(xen_start_info);
 
@@ -136,9 +141,6 @@ static void xen_vcpu_setup(int cpu)
        info.mfn = arbitrary_virt_to_mfn(vcpup);
        info.offset = offset_in_page(vcpup);
 
-       printk(KERN_DEBUG "trying to map vcpu_info %d at %p, mfn %llx, offset %d\n",
-              cpu, vcpup, info.mfn, info.offset);
-
        /* Check to see if the hypervisor will put the vcpu_info
           structure where we want it, which allows direct access via
           a percpu-variable. */
@@ -152,9 +154,6 @@ static void xen_vcpu_setup(int cpu)
                /* This cpu is using the registered vcpu info, even if
                   later ones fail to. */
                per_cpu(xen_vcpu, cpu) = vcpup;
-
-               printk(KERN_DEBUG "cpu %d using vcpu_info at %p\n",
-                      cpu, vcpup);
        }
 }
 
@@ -243,6 +242,7 @@ static __init void xen_init_cpuid_mask(void)
        cpuid_leaf1_edx_mask =
                ~((1 << X86_FEATURE_MCE)  |  /* disable MCE */
                  (1 << X86_FEATURE_MCA)  |  /* disable MCA */
+                 (1 << X86_FEATURE_MTRR) |  /* disable MTRR */
                  (1 << X86_FEATURE_ACC));   /* thermal monitoring */
 
        if (!xen_initial_domain())
@@ -836,6 +836,11 @@ static int xen_write_msr_safe(unsigned int msr, unsigned low, unsigned high)
                   Xen console noise. */
                break;
 
+       case MSR_IA32_CR_PAT:
+               if (smp_processor_id() == 0)
+                       xen_set_pat(((u64)high << 32) | low);
+               break;
+
        default:
                ret = native_write_msr_safe(msr, low, high);
        }
@@ -874,8 +879,6 @@ void xen_setup_vcpu_info_placement(void)
        /* xen_vcpu_setup managed to place the vcpu_info within the
           percpu area for all cpus, so make use of it */
        if (have_vcpu_info_placement) {
-               printk(KERN_INFO "Xen: using vcpu_info placement\n");
-
                pv_irq_ops.save_fl = __PV_IS_CALLEE_SAVE(xen_save_fl_direct);
                pv_irq_ops.restore_fl = __PV_IS_CALLEE_SAVE(xen_restore_fl_direct);
                pv_irq_ops.irq_disable = __PV_IS_CALLEE_SAVE(xen_irq_disable_direct);
@@ -1018,10 +1021,6 @@ static void xen_reboot(int reason)
 {
        struct sched_shutdown r = { .reason = reason };
 
-#ifdef CONFIG_SMP
-       smp_send_stop();
-#endif
-
        if (HYPERVISOR_sched_op(SCHEDOP_shutdown, &r))
                BUG();
 }
@@ -1092,6 +1091,8 @@ static void __init xen_setup_stackprotector(void)
 /* First C function to be called on Xen boot */
 asmlinkage void __init xen_start_kernel(void)
 {
+       struct physdev_set_iopl set_iopl;
+       int rc;
        pgd_t *pgd;
 
        if (!xen_start_info)
@@ -1099,6 +1100,8 @@ asmlinkage void __init xen_start_kernel(void)
 
        xen_domain_type = XEN_PV_DOMAIN;
 
+       xen_setup_machphys_mapping();
+
        /* Install Xen paravirt ops */
        pv_info = xen_info;
        pv_init_ops = xen_init_ops;
@@ -1188,8 +1191,10 @@ asmlinkage void __init xen_start_kernel(void)
 
        xen_raw_console_write("mapping kernel into physical memory\n");
        pgd = xen_setup_kernel_pagetable(pgd, xen_start_info->nr_pages);
+       xen_ident_map_ISA();
 
-       init_mm.pgd = pgd;
+       /* Allocate and initialize top and mid mfn levels for p2m structure */
+       xen_build_mfn_list_list();
 
        /* keep using Xen gdt for now; no urgent need to change it */
 
@@ -1200,10 +1205,18 @@ asmlinkage void __init xen_start_kernel(void)
 #else
        pv_info.kernel_rpl = 0;
 #endif
-
        /* set the limit of our address space */
        xen_reserve_top();
 
+       /* We used to do this in xen_arch_setup, but that is too late on AMD
+        * were early_cpu_init (run before ->arch_setup()) calls early_amd_init
+        * which pokes 0xcf8 port.
+        */
+       set_iopl.iopl = 1;
+       rc = HYPERVISOR_physdev_op(PHYSDEVOP_set_iopl, &set_iopl);
+       if (rc != 0)
+               xen_raw_printk("physdev_op failed %d\n", rc);
+
 #ifdef CONFIG_X86_32
        /* set up basic CPUID stuff */
        cpu_detect(&new_cpu_data);
@@ -1223,6 +1236,8 @@ 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);
+               if (pci_xen)
+                       x86_init.pci.arch_init = pci_xen_init;
        } else {
                /* Make sure ACS will be enabled */
                pci_request_acs();