diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile index 7322755f337a..4b6e29ac0968 100644 --- a/arch/x86/xen/Makefile +++ b/arch/x86/xen/Makefile @@ -13,13 +13,13 @@ CFLAGS_mmu.o := $(nostackp) obj-y := enlighten.o setup.o multicalls.o mmu.o irq.o \ time.o xen-asm.o xen-asm_$(BITS).o \ grant-table.o suspend.o platform-pci-unplug.o \ - p2m.o + p2m.o apic.o obj-$(CONFIG_EVENT_TRACING) += trace.o obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= spinlock.o obj-$(CONFIG_XEN_DEBUG_FS) += debugfs.o -obj-$(CONFIG_XEN_DOM0) += apic.o vga.o +obj-$(CONFIG_XEN_DOM0) += vga.o obj-$(CONFIG_SWIOTLB_XEN) += pci-swiotlb-xen.o obj-$(CONFIG_XEN_EFI) += efi.o diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h index c20fe29e65f4..2292721b1d10 100644 --- a/arch/x86/xen/xen-ops.h +++ b/arch/x86/xen/xen-ops.h @@ -101,17 +101,15 @@ struct dom0_vga_console_info; #ifdef CONFIG_XEN_DOM0 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size); -void __init xen_init_apic(void); #else static inline void __init xen_init_vga(const struct dom0_vga_console_info *info, size_t size) { } -static inline void __init xen_init_apic(void) -{ -} #endif +void __init xen_init_apic(void); + #ifdef CONFIG_XEN_EFI extern void xen_efi_init(void); #else diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c index 1495eccb1617..96093ae369a5 100644 --- a/drivers/xen/events/events_base.c +++ b/drivers/xen/events/events_base.c @@ -452,12 +452,10 @@ static void xen_free_irq(unsigned irq) irq_free_desc(irq); } -static void xen_evtchn_close(unsigned int port, unsigned int cpu) +static void xen_evtchn_close(unsigned int port) { struct evtchn_close close; - xen_evtchn_op_close(port, cpu); - close.port = port; if (HYPERVISOR_event_channel_op(EVTCHNOP_close, &close) != 0) BUG(); @@ -546,7 +544,7 @@ out: err: pr_err("irq%d: Failed to set port to irq mapping (%d)\n", irq, rc); - xen_evtchn_close(evtchn, NR_CPUS); + xen_evtchn_close(evtchn); return 0; } @@ -567,7 +565,7 @@ static void shutdown_pirq(struct irq_data *data) return; mask_evtchn(evtchn); - xen_evtchn_close(evtchn, cpu_from_evtchn(evtchn)); + xen_evtchn_close(evtchn); xen_irq_info_cleanup(info); } @@ -611,7 +609,7 @@ static void __unbind_from_irq(unsigned int irq) if (VALID_EVTCHN(evtchn)) { unsigned int cpu = cpu_from_irq(irq); - xen_evtchn_close(evtchn, cpu); + xen_evtchn_close(evtchn); switch (type_from_irq(irq)) { case IRQT_VIRQ: diff --git a/drivers/xen/events/events_fifo.c b/drivers/xen/events/events_fifo.c index 6df8aac966b9..ed673e1acd61 100644 --- a/drivers/xen/events/events_fifo.c +++ b/drivers/xen/events/events_fifo.c @@ -255,12 +255,6 @@ static void evtchn_fifo_unmask(unsigned port) } } -static bool evtchn_fifo_is_linked(unsigned port) -{ - event_word_t *word = event_word_from_port(port); - return sync_test_bit(EVTCHN_FIFO_BIT(LINKED, word), BM(word)); -} - static uint32_t clear_linked(volatile event_word_t *word) { event_word_t new, old, w; @@ -287,8 +281,7 @@ static void handle_irq_for_port(unsigned port) static void consume_one_event(unsigned cpu, struct evtchn_fifo_control_block *control_block, - unsigned priority, unsigned long *ready, - bool drop) + unsigned priority, unsigned long *ready) { struct evtchn_fifo_queue *q = &per_cpu(cpu_queue, cpu); uint32_t head; @@ -320,15 +313,13 @@ static void consume_one_event(unsigned cpu, if (head == 0) clear_bit(priority, ready); - if (evtchn_fifo_is_pending(port) && !evtchn_fifo_is_masked(port)) { - if (likely(!drop)) - handle_irq_for_port(port); - } + if (evtchn_fifo_is_pending(port) && !evtchn_fifo_is_masked(port)) + handle_irq_for_port(port); q->head[priority] = head; } -static void __evtchn_fifo_handle_events(unsigned cpu, bool drop) +static void evtchn_fifo_handle_events(unsigned cpu) { struct evtchn_fifo_control_block *control_block; unsigned long ready; @@ -340,16 +331,11 @@ static void __evtchn_fifo_handle_events(unsigned cpu, bool drop) while (ready) { q = find_first_bit(&ready, EVTCHN_FIFO_MAX_QUEUES); - consume_one_event(cpu, control_block, q, &ready, drop); + consume_one_event(cpu, control_block, q, &ready); ready |= xchg(&control_block->ready, 0); } } -static void evtchn_fifo_handle_events(unsigned cpu) -{ - __evtchn_fifo_handle_events(cpu, false); -} - static void evtchn_fifo_resume(void) { unsigned cpu; @@ -385,26 +371,6 @@ static void evtchn_fifo_resume(void) event_array_pages = 0; } -static void evtchn_fifo_close(unsigned port, unsigned int cpu) -{ - if (cpu == NR_CPUS) - return; - - get_online_cpus(); - if (cpu_online(cpu)) { - if (WARN_ON(irqs_disabled())) - goto out; - - while (evtchn_fifo_is_linked(port)) - cpu_relax(); - } else { - __evtchn_fifo_handle_events(cpu, true); - } - -out: - put_online_cpus(); -} - static const struct evtchn_ops evtchn_ops_fifo = { .max_channels = evtchn_fifo_max_channels, .nr_channels = evtchn_fifo_nr_channels, @@ -418,7 +384,6 @@ static const struct evtchn_ops evtchn_ops_fifo = { .unmask = evtchn_fifo_unmask, .handle_events = evtchn_fifo_handle_events, .resume = evtchn_fifo_resume, - .close = evtchn_fifo_close, }; static int evtchn_fifo_alloc_control_block(unsigned cpu) diff --git a/drivers/xen/events/events_internal.h b/drivers/xen/events/events_internal.h index d18e12315ec0..50c2050a1e32 100644 --- a/drivers/xen/events/events_internal.h +++ b/drivers/xen/events/events_internal.h @@ -68,7 +68,6 @@ struct evtchn_ops { bool (*test_and_set_mask)(unsigned port); void (*mask)(unsigned port); void (*unmask)(unsigned port); - void (*close)(unsigned port, unsigned cpu); void (*handle_events)(unsigned cpu); void (*resume)(void); @@ -146,12 +145,6 @@ static inline void xen_evtchn_resume(void) evtchn_ops->resume(); } -static inline void xen_evtchn_op_close(unsigned port, unsigned cpu) -{ - if (evtchn_ops->close) - return evtchn_ops->close(port, cpu); -} - void xen_evtchn_2l_init(void); int xen_evtchn_fifo_init(void); diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c index 9ad327238ba9..e30353575d5d 100644 --- a/drivers/xen/xenbus/xenbus_client.c +++ b/drivers/xen/xenbus/xenbus_client.c @@ -814,8 +814,10 @@ static int xenbus_unmap_ring_vfree_hvm(struct xenbus_device *dev, void *vaddr) rv = xenbus_unmap_ring(dev, node->handles, node->nr_handles, addrs); - if (!rv) + if (!rv) { vunmap(vaddr); + free_xenballooned_pages(node->nr_handles, node->hvm.pages); + } else WARN(1, "Leaking %p, size %u page(s)\n", vaddr, node->nr_handles);