Commit 4762e252 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 

* 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/tracing: Fix tracing config option properly
  xen: Do not enable PV IPIs when vector callback not present
  xen/x86: replace order-based range checking of M2P table by linear one
  xen: xen-selfballoon.c needs more header files
parents 3210d190 60c5f08e

arch/x86/include/asm/xen/page.h

+2 −2
Original line number Diff line number Diff line
@@ -39,7 +39,7 @@ typedef struct xpaddr { 
    ((unsigned long)((u64)CONFIG_XEN_MAX_DOMAIN_MEMORY * 1024 * 1024 * 1024 / PAGE_SIZE))



extern unsigned long *machine_to_phys_mapping;

extern unsigned int   machine_to_phys_order;

extern unsigned long  machine_to_phys_nr;



extern unsigned long get_phys_to_machine(unsigned long pfn);

extern bool set_phys_to_machine(unsigned long pfn, unsigned long mfn);
@@ -87,7 +87,7 @@ static inline unsigned long mfn_to_pfn(unsigned long mfn) 
	if (xen_feature(XENFEAT_auto_translated_physmap))

		return mfn;



	if (unlikely((mfn >> machine_to_phys_order) != 0)) {

	if (unlikely(mfn >= machine_to_phys_nr)) {

		pfn = ~0;

		goto try_override;

	}

arch/x86/xen/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -15,7 +15,7 @@ obj-y := enlighten.o setup.o multicalls.o mmu.o irq.o \ 
			grant-table.o suspend.o platform-pci-unplug.o \

			p2m.o



obj-$(CONFIG_FTRACE) += trace.o

obj-$(CONFIG_EVENT_TRACING) += trace.o



obj-$(CONFIG_SMP)		+= smp.o

obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= spinlock.o

arch/x86/xen/enlighten.c

+2 −2
Original line number Diff line number Diff line
@@ -77,8 +77,8 @@ 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);

unsigned long  machine_to_phys_nr;

EXPORT_SYMBOL(machine_to_phys_nr);



struct start_info *xen_start_info;

EXPORT_SYMBOL_GPL(xen_start_info);

arch/x86/xen/mmu.c

+8 −4
Original line number Diff line number Diff line
@@ -1713,15 +1713,19 @@ static void __init xen_map_identity_early(pmd_t *pmd, unsigned long max_pfn) 
void __init xen_setup_machphys_mapping(void)

{

	struct xen_machphys_mapping mapping;

	unsigned long machine_to_phys_nr_ents;



	if (HYPERVISOR_memory_op(XENMEM_machphys_mapping, &mapping) == 0) {

		machine_to_phys_mapping = (unsigned long *)mapping.v_start;

		machine_to_phys_nr_ents = mapping.max_mfn + 1;

		machine_to_phys_nr = mapping.max_mfn + 1;

	} else {

		machine_to_phys_nr_ents = MACH2PHYS_NR_ENTRIES;

		machine_to_phys_nr = MACH2PHYS_NR_ENTRIES;

	}

	machine_to_phys_order = fls(machine_to_phys_nr_ents - 1);

#ifdef CONFIG_X86_32

	if ((machine_to_phys_mapping + machine_to_phys_nr)

	    < machine_to_phys_mapping)

		machine_to_phys_nr = (unsigned long *)NULL

				     - machine_to_phys_mapping;

#endif

}



#ifdef CONFIG_X86_64

arch/x86/xen/smp.c

+2 −2
Original line number Diff line number Diff line
@@ -521,8 +521,6 @@ static void __init xen_hvm_smp_prepare_cpus(unsigned int max_cpus) 
	native_smp_prepare_cpus(max_cpus);

	WARN_ON(xen_smp_intr_init(0));



	if (!xen_have_vector_callback)

		return;

	xen_init_lock_cpu(0);

	xen_init_spinlocks();

}
@@ -546,6 +544,8 @@ static void xen_hvm_cpu_die(unsigned int cpu) 


void __init xen_hvm_smp_init(void)

{

	if (!xen_have_vector_callback)

		return;

	smp_ops.smp_prepare_cpus = xen_hvm_smp_prepare_cpus;

	smp_ops.smp_send_reschedule = xen_smp_send_reschedule;

	smp_ops.cpu_up = xen_hvm_cpu_up;

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