Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2

[cascardo/linux.git] / arch / x86 / lguest / boot.c

diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index f3a5305..9fe4dda 100644 (file)
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -348,6 +348,11 @@ static void lguest_cpuid(unsigned int *ax, unsigned int *bx,
                 * flush_tlb_user() for both user and kernel mappings unless
                 * the Page Global Enable (PGE) feature bit is set. */
                *dx |= 0x00002000;
+               /* We also lie, and say we're family id 5.  6 or greater
+                * leads to a rdmsr in early_init_intel which we can't handle.
+                * Family ID is returned as bits 8-12 in ax. */
+               *ax &= 0xFFFFF0FF;
+               *ax |= 0x00000500;
                break;
        case 0x80000000:
                /* Futureproof this a little: if they ask how much extended
@@ -594,19 +599,21 @@ static void __init lguest_init_IRQ(void)
                /* Some systems map "vectors" to interrupts weirdly.  Lguest has
                 * a straightforward 1 to 1 mapping, so force that here. */
                __get_cpu_var(vector_irq)[vector] = i;
-               if (vector != SYSCALL_VECTOR) {
-                       set_intr_gate(vector,
-                                     interrupt[vector-FIRST_EXTERNAL_VECTOR]);
-                       set_irq_chip_and_handler_name(i, &lguest_irq_controller,
-                                                     handle_level_irq,
-                                                     "level");
-               }
+               if (vector != SYSCALL_VECTOR)
+                       set_intr_gate(vector, interrupt[i]);
        }
        /* This call is required to set up for 4k stacks, where we have
         * separate stacks for hard and soft interrupts. */
        irq_ctx_init(smp_processor_id());
 }
 
+void lguest_setup_irq(unsigned int irq)
+{
+       irq_to_desc_alloc_cpu(irq, 0);
+       set_irq_chip_and_handler_name(irq, &lguest_irq_controller,
+                                     handle_level_irq, "level");
+}
+
 /*
  * Time.
  *