diff options
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/events/events_2l.c | 10 | ||||
| -rw-r--r-- | drivers/xen/events/events_base.c | 21 | ||||
| -rw-r--r-- | drivers/xen/events/events_fifo.c | 2 | ||||
| -rw-r--r-- | drivers/xen/gntdev.c | 30 | ||||
| -rw-r--r-- | drivers/xen/grant-table.c | 29 | ||||
| -rw-r--r-- | drivers/xen/manage.c | 11 | ||||
| -rw-r--r-- | drivers/xen/swiotlb-xen.c | 2 | ||||
| -rw-r--r-- | drivers/xen/tmem.c | 12 | ||||
| -rw-r--r-- | drivers/xen/xen-acpi-cpuhotplug.c | 12 | ||||
| -rw-r--r-- | drivers/xen/xen-pciback/conf_space.c | 6 | ||||
| -rw-r--r-- | drivers/xen/xen-pciback/conf_space.h | 2 | ||||
| -rw-r--r-- | drivers/xen/xen-pciback/conf_space_header.c | 2 | ||||
| -rw-r--r-- | drivers/xen/xen-scsiback.c | 5 | ||||
| -rw-r--r-- | drivers/xen/xenbus/xenbus_client.c | 8 | ||||
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.c | 29 |
15 files changed, 109 insertions, 72 deletions
diff --git a/drivers/xen/events/events_2l.c b/drivers/xen/events/events_2l.c index 5db43fc100a4..7dd46312c180 100644 --- a/drivers/xen/events/events_2l.c +++ b/drivers/xen/events/events_2l.c @@ -345,6 +345,15 @@ irqreturn_t xen_debug_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } +static void evtchn_2l_resume(void) +{ + int i; + + for_each_online_cpu(i) + memset(per_cpu(cpu_evtchn_mask, i), 0, sizeof(xen_ulong_t) * + EVTCHN_2L_NR_CHANNELS/BITS_PER_EVTCHN_WORD); +} + static const struct evtchn_ops evtchn_ops_2l = { .max_channels = evtchn_2l_max_channels, .nr_channels = evtchn_2l_max_channels, @@ -356,6 +365,7 @@ static const struct evtchn_ops evtchn_ops_2l = { .mask = evtchn_2l_mask, .unmask = evtchn_2l_unmask, .handle_events = evtchn_2l_handle_events, + .resume = evtchn_2l_resume, }; void __init xen_evtchn_2l_init(void) diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c index 70fba973a107..96093ae369a5 100644 --- a/drivers/xen/events/events_base.c +++ b/drivers/xen/events/events_base.c @@ -39,8 +39,8 @@ #include <asm/irq.h> #include <asm/idle.h> #include <asm/io_apic.h> -#include <asm/xen/page.h> #include <asm/xen/pci.h> +#include <xen/page.h> #endif #include <asm/sync_bitops.h> #include <asm/xen/hypercall.h> @@ -529,8 +529,8 @@ static unsigned int __startup_pirq(unsigned int irq) if (rc) goto err; - bind_evtchn_to_cpu(evtchn, 0); info->evtchn = evtchn; + bind_evtchn_to_cpu(evtchn, 0); rc = xen_evtchn_port_setup(info); if (rc) @@ -957,7 +957,7 @@ unsigned xen_evtchn_nr_channels(void) } EXPORT_SYMBOL_GPL(xen_evtchn_nr_channels); -int bind_virq_to_irq(unsigned int virq, unsigned int cpu) +int bind_virq_to_irq(unsigned int virq, unsigned int cpu, bool percpu) { struct evtchn_bind_virq bind_virq; int evtchn, irq, ret; @@ -971,8 +971,12 @@ int bind_virq_to_irq(unsigned int virq, unsigned int cpu) if (irq < 0) goto out; - irq_set_chip_and_handler_name(irq, &xen_percpu_chip, - handle_percpu_irq, "virq"); + if (percpu) + irq_set_chip_and_handler_name(irq, &xen_percpu_chip, + handle_percpu_irq, "virq"); + else + irq_set_chip_and_handler_name(irq, &xen_dynamic_chip, + handle_edge_irq, "virq"); bind_virq.virq = virq; bind_virq.vcpu = cpu; @@ -1062,7 +1066,7 @@ int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu, { int irq, retval; - irq = bind_virq_to_irq(virq, cpu); + irq = bind_virq_to_irq(virq, cpu, irqflags & IRQF_PERCPU); if (irq < 0) return irq; retval = request_irq(irq, handler, irqflags, devname, dev_id); @@ -1279,8 +1283,9 @@ void rebind_evtchn_irq(int evtchn, int irq) mutex_unlock(&irq_mapping_update_lock); - /* new event channels are always bound to cpu 0 */ - irq_set_affinity(irq, cpumask_of(0)); + bind_evtchn_to_cpu(evtchn, info->cpu); + /* This will be deferred until interrupt is processed */ + irq_set_affinity(irq, cpumask_of(info->cpu)); /* Unmask the event channel. */ enable_irq(irq); diff --git a/drivers/xen/events/events_fifo.c b/drivers/xen/events/events_fifo.c index 417415d738d0..ed673e1acd61 100644 --- a/drivers/xen/events/events_fifo.c +++ b/drivers/xen/events/events_fifo.c @@ -44,13 +44,13 @@ #include <asm/sync_bitops.h> #include <asm/xen/hypercall.h> #include <asm/xen/hypervisor.h> -#include <asm/xen/page.h> #include <xen/xen.h> #include <xen/xen-ops.h> #include <xen/events.h> #include <xen/interface/xen.h> #include <xen/interface/event_channel.h> +#include <xen/page.h> #include "events_internal.h" diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index d5bb1a33d0a3..67b9163db718 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -41,9 +41,9 @@ #include <xen/balloon.h> #include <xen/gntdev.h> #include <xen/events.h> +#include <xen/page.h> #include <asm/xen/hypervisor.h> #include <asm/xen/hypercall.h> -#include <asm/xen/page.h> MODULE_LICENSE("GPL"); MODULE_AUTHOR("Derek G. Murray <Derek.Murray@cl.cam.ac.uk>, " @@ -327,30 +327,10 @@ static int map_grant_pages(struct grant_map *map) return err; } -struct unmap_grant_pages_callback_data -{ - struct completion completion; - int result; -}; - -static void unmap_grant_callback(int result, - struct gntab_unmap_queue_data *data) -{ - struct unmap_grant_pages_callback_data* d = data->data; - - d->result = result; - complete(&d->completion); -} - static int __unmap_grant_pages(struct grant_map *map, int offset, int pages) { int i, err = 0; struct gntab_unmap_queue_data unmap_data; - struct unmap_grant_pages_callback_data data; - - init_completion(&data.completion); - unmap_data.data = &data; - unmap_data.done= &unmap_grant_callback; if (map->notify.flags & UNMAP_NOTIFY_CLEAR_BYTE) { int pgno = (map->notify.addr >> PAGE_SHIFT); @@ -367,11 +347,9 @@ static int __unmap_grant_pages(struct grant_map *map, int offset, int pages) unmap_data.pages = map->pages + offset; unmap_data.count = pages; - gnttab_unmap_refs_async(&unmap_data); - - wait_for_completion(&data.completion); - if (data.result) - return data.result; + err = gnttab_unmap_refs_sync(&unmap_data); + if (err) + return err; for (i = 0; i < pages; i++) { if (map->unmap_ops[offset+i].status) diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index 17972fbacddc..62f591f8763c 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -123,6 +123,11 @@ struct gnttab_ops { int (*query_foreign_access)(grant_ref_t ref); }; +struct unmap_refs_callback_data { + struct completion completion; + int result; +}; + static struct gnttab_ops *gnttab_interface; static int grant_table_version; @@ -133,7 +138,6 @@ static struct gnttab_free_callback *gnttab_free_callback_list; static int gnttab_expand(unsigned int req_entries); #define RPP (PAGE_SIZE / sizeof(grant_ref_t)) -#define SPP (PAGE_SIZE / sizeof(grant_status_t)) static inline grant_ref_t *__gnttab_entry(grant_ref_t entry) { @@ -863,6 +867,29 @@ void gnttab_unmap_refs_async(struct gntab_unmap_queue_data* item) } EXPORT_SYMBOL_GPL(gnttab_unmap_refs_async); +static void unmap_refs_callback(int result, + struct gntab_unmap_queue_data *data) +{ + struct unmap_refs_callback_data *d = data->data; + + d->result = result; + complete(&d->completion); +} + +int gnttab_unmap_refs_sync(struct gntab_unmap_queue_data *item) +{ + struct unmap_refs_callback_data data; + + init_completion(&data.completion); + item->data = &data; + item->done = &unmap_refs_callback; + gnttab_unmap_refs_async(item); + wait_for_completion(&data.completion); + + return data.result; +} +EXPORT_SYMBOL_GPL(gnttab_unmap_refs_sync); + static int gnttab_map_frames_v1(xen_pfn_t *frames, unsigned int nr_gframes) { int rc; diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index bf1940706422..d10effee9b9e 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -19,10 +19,10 @@ #include <xen/grant_table.h> #include <xen/events.h> #include <xen/hvc-console.h> +#include <xen/page.h> #include <xen/xen-ops.h> #include <asm/xen/hypercall.h> -#include <asm/xen/page.h> #include <asm/xen/hypervisor.h> enum shutdown_state { @@ -131,6 +131,8 @@ static void do_suspend(void) goto out_resume; } + xen_arch_suspend(); + si.cancelled = 1; err = stop_machine(xen_suspend, &si, cpumask_of(0)); @@ -148,11 +150,12 @@ static void do_suspend(void) si.cancelled = 1; } + xen_arch_resume(); + out_resume: - if (!si.cancelled) { - xen_arch_resume(); + if (!si.cancelled) xs_resume(); - } else + else xs_suspend_cancel(); dpm_resume_end(si.cancelled ? PMSG_THAW : PMSG_RESTORE); diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 810ad419e34c..4c549323c605 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -235,7 +235,7 @@ retry: #define SLABS_PER_PAGE (1 << (PAGE_SHIFT - IO_TLB_SHIFT)) #define IO_TLB_MIN_SLABS ((1<<20) >> IO_TLB_SHIFT) while ((SLABS_PER_PAGE << order) > IO_TLB_MIN_SLABS) { - xen_io_tlb_start = (void *)__get_free_pages(__GFP_NOWARN, order); + xen_io_tlb_start = (void *)xen_get_swiotlb_free_pages(order); if (xen_io_tlb_start) break; order--; diff --git a/drivers/xen/tmem.c b/drivers/xen/tmem.c index c4211a31612d..239738f944ba 100644 --- a/drivers/xen/tmem.c +++ b/drivers/xen/tmem.c @@ -17,8 +17,8 @@ #include <xen/xen.h> #include <xen/interface/xen.h> +#include <xen/page.h> #include <asm/xen/hypercall.h> -#include <asm/xen/page.h> #include <asm/xen/hypervisor.h> #include <xen/tmem.h> @@ -381,21 +381,15 @@ static int __init xen_tmem_init(void) #ifdef CONFIG_FRONTSWAP if (tmem_enabled && frontswap) { char *s = ""; - struct frontswap_ops *old_ops; tmem_frontswap_poolid = -1; - old_ops = frontswap_register_ops(&tmem_frontswap_ops); - if (IS_ERR(old_ops) || old_ops) { - if (IS_ERR(old_ops)) - return PTR_ERR(old_ops); - s = " (WARNING: frontswap_ops overridden)"; - } + frontswap_register_ops(&tmem_frontswap_ops); pr_info("frontswap enabled, RAM provided by Xen Transcendent Memory%s\n", s); } #endif #ifdef CONFIG_CLEANCACHE - BUG_ON(sizeof(struct cleancache_filekey) != sizeof(struct tmem_oid)); + BUILD_BUG_ON(sizeof(struct cleancache_filekey) != sizeof(struct tmem_oid)); if (tmem_enabled && cleancache) { int err; diff --git a/drivers/xen/xen-acpi-cpuhotplug.c b/drivers/xen/xen-acpi-cpuhotplug.c index 3e62ee4b3b66..f4a369429553 100644 --- a/drivers/xen/xen-acpi-cpuhotplug.c +++ b/drivers/xen/xen-acpi-cpuhotplug.c @@ -46,13 +46,7 @@ static int xen_acpi_processor_enable(struct acpi_device *device) unsigned long long value; union acpi_object object = { 0 }; struct acpi_buffer buffer = { sizeof(union acpi_object), &object }; - struct acpi_processor *pr; - - pr = acpi_driver_data(device); - if (!pr) { - pr_err(PREFIX "Cannot find driver data\n"); - return -EINVAL; - } + struct acpi_processor *pr = acpi_driver_data(device); if (!strcmp(acpi_device_hid(device), ACPI_PROCESSOR_OBJECT_HID)) { /* Declared with "Processor" statement; match ProcessorID */ @@ -77,7 +71,7 @@ static int xen_acpi_processor_enable(struct acpi_device *device) pr->id = xen_pcpu_id(pr->acpi_id); - if ((int)pr->id < 0) + if (invalid_logical_cpuid(pr->id)) /* This cpu is not presented at hypervisor, try to hotadd it */ if (ACPI_FAILURE(xen_acpi_cpu_hotadd(pr))) { pr_err(PREFIX "Hotadd CPU (acpi_id = %d) failed.\n", @@ -226,7 +220,7 @@ static acpi_status xen_acpi_cpu_hotadd(struct acpi_processor *pr) return AE_ERROR; pr->id = xen_hotadd_cpu(pr); - if ((int)pr->id < 0) + if (invalid_logical_cpuid(pr->id)) return AE_ERROR; /* diff --git a/drivers/xen/xen-pciback/conf_space.c b/drivers/xen/xen-pciback/conf_space.c index 75fe3d466515..9c234209d8b5 100644 --- a/drivers/xen/xen-pciback/conf_space.c +++ b/drivers/xen/xen-pciback/conf_space.c @@ -16,8 +16,8 @@ #include "conf_space.h" #include "conf_space_quirks.h" -bool permissive; -module_param(permissive, bool, 0644); +bool xen_pcibk_permissive; +module_param_named(permissive, xen_pcibk_permissive, bool, 0644); /* This is where xen_pcibk_read_config_byte, xen_pcibk_read_config_word, * xen_pcibk_write_config_word, and xen_pcibk_write_config_byte are created. */ @@ -262,7 +262,7 @@ int xen_pcibk_config_write(struct pci_dev *dev, int offset, int size, u32 value) * This means that some fields may still be read-only because * they have entries in the config_field list that intercept * the write and do nothing. */ - if (dev_data->permissive || permissive) { + if (dev_data->permissive || xen_pcibk_permissive) { switch (size) { case 1: err = pci_write_config_byte(dev, offset, diff --git a/drivers/xen/xen-pciback/conf_space.h b/drivers/xen/xen-pciback/conf_space.h index 2e1d73d1d5d0..62461a8ba1d6 100644 --- a/drivers/xen/xen-pciback/conf_space.h +++ b/drivers/xen/xen-pciback/conf_space.h @@ -64,7 +64,7 @@ struct config_field_entry { void *data; }; -extern bool permissive; +extern bool xen_pcibk_permissive; #define OFFSET(cfg_entry) ((cfg_entry)->base_offset+(cfg_entry)->field->offset) diff --git a/drivers/xen/xen-pciback/conf_space_header.c b/drivers/xen/xen-pciback/conf_space_header.c index c2260a0456c9..ad3d17d29c81 100644 --- a/drivers/xen/xen-pciback/conf_space_header.c +++ b/drivers/xen/xen-pciback/conf_space_header.c @@ -118,7 +118,7 @@ static int command_write(struct pci_dev *dev, int offset, u16 value, void *data) cmd->val = value; - if (!permissive && (!dev_data || !dev_data->permissive)) + if (!xen_pcibk_permissive && (!dev_data || !dev_data->permissive)) return 0; /* Only allow the guest to control certain bits. */ diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c index 823bdf4cc36e..9eeefd7cad41 100644 --- a/drivers/xen/xen-scsiback.c +++ b/drivers/xen/xen-scsiback.c @@ -49,10 +49,7 @@ #include <generated/utsrelease.h> -#include <scsi/scsi.h> -#include <scsi/scsi_dbg.h> -#include <scsi/scsi_eh.h> -#include <scsi/scsi_tcq.h> +#include <scsi/scsi_host.h> /* SG_ALL */ #include <target/target_core_base.h> #include <target/target_core_fabric.h> diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c index 96b2011d25f3..9ad327238ba9 100644 --- a/drivers/xen/xenbus/xenbus_client.c +++ b/drivers/xen/xenbus/xenbus_client.c @@ -37,7 +37,7 @@ #include <linux/vmalloc.h> #include <linux/export.h> #include <asm/xen/hypervisor.h> -#include <asm/xen/page.h> +#include <xen/page.h> #include <xen/interface/xen.h> #include <xen/interface/event_channel.h> #include <xen/balloon.h> @@ -379,16 +379,16 @@ int xenbus_grant_ring(struct xenbus_device *dev, void *vaddr, int i, j; for (i = 0; i < nr_pages; i++) { - unsigned long addr = (unsigned long)vaddr + - (PAGE_SIZE * i); err = gnttab_grant_foreign_access(dev->otherend_id, - virt_to_mfn(addr), 0); + virt_to_mfn(vaddr), 0); if (err < 0) { xenbus_dev_fatal(dev, err, "granting access to ring page"); goto fail; } grefs[i] = err; + + vaddr = vaddr + PAGE_SIZE; } return 0; diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 564b31584860..4308fb3cf7c2 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -57,6 +57,7 @@ #include <xen/xen.h> #include <xen/xenbus.h> #include <xen/events.h> +#include <xen/xen-ops.h> #include <xen/page.h> #include <xen/hvm.h> @@ -735,6 +736,30 @@ static int __init xenstored_local_init(void) return err; } +static int xenbus_resume_cb(struct notifier_block *nb, + unsigned long action, void *data) +{ + int err = 0; + + if (xen_hvm_domain()) { + uint64_t v = 0; + + err = hvm_get_parameter(HVM_PARAM_STORE_EVTCHN, &v); + if (!err && v) + xen_store_evtchn = v; + else + pr_warn("Cannot update xenstore event channel: %d\n", + err); + } else + xen_store_evtchn = xen_start_info->store_evtchn; + + return err; +} + +static struct notifier_block xenbus_resume_nb = { + .notifier_call = xenbus_resume_cb, +}; + static int __init xenbus_init(void) { int err = 0; @@ -793,6 +818,10 @@ static int __init xenbus_init(void) goto out_error; } + if ((xen_store_domain_type != XS_LOCAL) && + (xen_store_domain_type != XS_UNKNOWN)) + xen_resume_notifier_register(&xenbus_resume_nb); + #ifdef CONFIG_XEN_COMPAT_XENFS /* * Create xenfs mountpoint in /proc for compatibility with |