From: Ingo Molnar <mingo@elte.hu>
Date: Sun, 12 Oct 2008 10:35:23 +0000 (+0200)
Subject: Merge branch 'linus' into x86/xen
X-Git-Tag: v3.12-rc1~18205^2^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=365d46dc9be9b3c833990a06f3994b1987eda578;p=kernel%2Fkernel-generic.git

Merge branch 'linus' into x86/xen

Conflicts:
	arch/x86/kernel/cpu/common.c
	arch/x86/kernel/process_64.c
	arch/x86/xen/enlighten.c
---

365d46dc9be9b3c833990a06f3994b1987eda578
diff --cc arch/x86/kernel/cpu/common.c
index 9983bc3,7581b62..fb789dd
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@@ -723,8 -1105,32 +1105,21 @@@ void __cpuinit cpu_init(void
  	/*
  	 * Force FPU initialization:
  	 */
- 	current_thread_info()->status = 0;
+ 	if (cpu_has_xsave)
+ 		current_thread_info()->status = TS_XSAVE;
+ 	else
+ 		current_thread_info()->status = 0;
  	clear_used_math();
  	mxcsr_feature_mask_init();
+ 
+ 	/*
+ 	 * Boot processor to setup the FP and extended state context info.
+ 	 */
+ 	if (!smp_processor_id())
+ 		init_thread_xstate();
+ 
+ 	xsave_init();
  }
  
 -#ifdef CONFIG_HOTPLUG_CPU
 -void __cpuinit cpu_uninit(void)
 -{
 -	int cpu = raw_smp_processor_id();
 -	cpu_clear(cpu, cpu_initialized);
 -
 -	/* lazy TLB state */
 -	per_cpu(cpu_tlbstate, cpu).state = 0;
 -	per_cpu(cpu_tlbstate, cpu).active_mm = &init_mm;
 -}
 -#endif
+ 
+ #endif
diff --cc arch/x86/xen/enlighten.c
index 977a542,a27d562..0013a72
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@@ -1228,10 -1273,38 +1260,8 @@@ static const struct pv_cpu_ops xen_cpu_
  	},
  };
  
 -static void __init __xen_init_IRQ(void)
 -{
 -#ifdef CONFIG_X86_64
 -	int i;
 -
 -	/* Create identity vector->irq map */
 -	for(i = 0; i < NR_VECTORS; i++) {
 -		int cpu;
 -
 -		for_each_possible_cpu(cpu)
 -			per_cpu(vector_irq, cpu)[i] = i;
 -	}
 -#endif	/* CONFIG_X86_64 */
 -
 -	xen_init_IRQ();
 -}
 -
 -static const struct pv_irq_ops xen_irq_ops __initdata = {
 -	.init_IRQ = __xen_init_IRQ,
 -	.save_fl = xen_save_fl,
 -	.restore_fl = xen_restore_fl,
 -	.irq_disable = xen_irq_disable,
 -	.irq_enable = xen_irq_enable,
 -	.safe_halt = xen_safe_halt,
 -	.halt = xen_halt,
 -#ifdef CONFIG_X86_64
 -	.adjust_exception_frame = xen_adjust_exception_frame,
 -#endif
 -};
 -
  static const struct pv_apic_ops xen_apic_ops __initdata = {
  #ifdef CONFIG_X86_LOCAL_APIC
- 	.apic_write = xen_apic_write,
- 	.apic_read = xen_apic_read,
  	.setup_boot_clock = paravirt_nop,
  	.setup_secondary_clock = paravirt_nop,
  	.startup_ipi_hook = paravirt_nop,
@@@ -1598,8 -1706,14 +1628,15 @@@ asmlinkage void __init xen_start_kernel
  	pv_apic_ops = xen_apic_ops;
  	pv_mmu_ops = xen_mmu_ops;
  
 +	xen_init_irq_ops();
 +
+ #ifdef CONFIG_X86_LOCAL_APIC
+ 	/*
+ 	 * set up the basic apic ops.
+ 	 */
+ 	apic_ops = &xen_basic_apic_ops;
+ #endif
+ 
  	if (xen_feature(XENFEAT_mmu_pt_update_preserve_ad)) {
  		pv_mmu_ops.ptep_modify_prot_start = xen_ptep_modify_prot_start;
  		pv_mmu_ops.ptep_modify_prot_commit = xen_ptep_modify_prot_commit;
diff --cc include/asm-x86/smp.h
index 30b5146,29324c1..6df2615
--- a/include/asm-x86/smp.h
+++ b/include/asm-x86/smp.h
@@@ -222,5 -205,9 +227,5 @@@ static inline int hard_smp_processor_id
  
  #endif /* CONFIG_X86_LOCAL_APIC */
  
 -#ifdef CONFIG_HOTPLUG_CPU
 -extern void cpu_uninit(void);
 -#endif
 -
  #endif /* __ASSEMBLY__ */
- #endif
+ #endif /* ASM_X86__SMP_H */
diff --cc include/asm-x86/xen/hypervisor.h
index fca066f,0ef3a88..445a247
--- a/include/asm-x86/xen/hypervisor.h
+++ b/include/asm-x86/xen/hypervisor.h
@@@ -66,17 -67,6 +66,17 @@@ u64 jiffies_to_st(unsigned long jiffies
  #define MULTI_UVMFLAGS_INDEX 3
  #define MULTI_UVMDOMID_INDEX 4
  
 -#define is_running_on_xen()	(xen_start_info ? 1 : 0)
 +enum xen_domain_type {
 +	XEN_NATIVE,
 +	XEN_PV_DOMAIN,
 +	XEN_HVM_DOMAIN,
 +};
 +
 +extern enum xen_domain_type xen_domain_type;
 +
 +#define xen_domain()		(xen_domain_type != XEN_NATIVE)
 +#define xen_pv_domain()		(xen_domain_type == XEN_PV_DOMAIN)
 +#define xen_initial_domain()	(xen_pv_domain() && xen_start_info->flags & SIF_INITDOMAIN)
 +#define xen_hvm_domain()	(xen_domain_type == XEN_HVM_DOMAIN)
  
- #endif /* __HYPERVISOR_H__ */
+ #endif /* ASM_X86__XEN__HYPERVISOR_H */