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Diffstat (limited to 'arch/x86/lguest/boot.c')
-rw-r--r--arch/x86/lguest/boot.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 92f1c6f3e19..960a8d9c049 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -343,6 +343,11 @@ static void lguest_cpuid(unsigned int *ax, unsigned int *bx,
343 * flush_tlb_user() for both user and kernel mappings unless 343 * flush_tlb_user() for both user and kernel mappings unless
344 * the Page Global Enable (PGE) feature bit is set. */ 344 * the Page Global Enable (PGE) feature bit is set. */
345 *dx |= 0x00002000; 345 *dx |= 0x00002000;
346 /* We also lie, and say we're family id 5. 6 or greater
347 * leads to a rdmsr in early_init_intel which we can't handle.
348 * Family ID is returned as bits 8-12 in ax. */
349 *ax &= 0xFFFFF0FF;
350 *ax |= 0x00000500;
346 break; 351 break;
347 case 0x80000000: 352 case 0x80000000:
348 /* Futureproof this a little: if they ask how much extended 353 /* Futureproof this a little: if they ask how much extended
@@ -589,19 +594,21 @@ static void __init lguest_init_IRQ(void)
589 /* Some systems map "vectors" to interrupts weirdly. Lguest has 594 /* Some systems map "vectors" to interrupts weirdly. Lguest has
590 * a straightforward 1 to 1 mapping, so force that here. */ 595 * a straightforward 1 to 1 mapping, so force that here. */
591 __get_cpu_var(vector_irq)[vector] = i; 596 __get_cpu_var(vector_irq)[vector] = i;
592 if (vector != SYSCALL_VECTOR) { 597 if (vector != SYSCALL_VECTOR)
593 set_intr_gate(vector, 598 set_intr_gate(vector, interrupt[i]);
594 interrupt[vector-FIRST_EXTERNAL_VECTOR]);
595 set_irq_chip_and_handler_name(i, &lguest_irq_controller,
596 handle_level_irq,
597 "level");
598 }
599 } 599 }
600 /* This call is required to set up for 4k stacks, where we have 600 /* This call is required to set up for 4k stacks, where we have
601 * separate stacks for hard and soft interrupts. */ 601 * separate stacks for hard and soft interrupts. */
602 irq_ctx_init(smp_processor_id()); 602 irq_ctx_init(smp_processor_id());
603} 603}
604 604
605void lguest_setup_irq(unsigned int irq)
606{
607 irq_to_desc_alloc_cpu(irq, 0);
608 set_irq_chip_and_handler_name(irq, &lguest_irq_controller,
609 handle_level_irq, "level");
610}
611
605/* 612/*
606 * Time. 613 * Time.
607 * 614 *