diff options
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/xen/Makefile | 2 | ||||
| -rw-r--r-- | drivers/xen/events/events_2l.c | 10 | ||||
| -rw-r--r-- | drivers/xen/events/events_base.c | 7 | ||||
| -rw-r--r-- | drivers/xen/gntdev.c | 28 | ||||
| -rw-r--r-- | drivers/xen/grant-table.c | 28 | ||||
| -rw-r--r-- | drivers/xen/manage.c | 9 | ||||
| -rw-r--r-- | drivers/xen/swiotlb-xen.c | 2 | ||||
| -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 | 74 | ||||
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.c | 29 |
13 files changed, 104 insertions, 99 deletions
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index a270004c9605..7cd226da15fe 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -276,4 +276,8 @@ config XEN_AUTO_XLATE help Support for auto-translated physmap guests. +config XEN_ACPI + def_bool y + depends on X86 && ACPI + endmenu diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile index 40edd1cbb60d..e293bc507cbc 100644 --- a/drivers/xen/Makefile +++ b/drivers/xen/Makefile @@ -13,7 +13,7 @@ CFLAGS_efi.o += -fshort-wchar dom0-$(CONFIG_PCI) += pci.o dom0-$(CONFIG_USB_SUPPORT) += dbgp.o -dom0-$(CONFIG_ACPI) += acpi.o $(xen-pad-y) +dom0-$(CONFIG_XEN_ACPI) += acpi.o $(xen-pad-y) xen-pad-$(CONFIG_X86) += xen-acpi-pad.o dom0-$(CONFIG_X86) += pcpu.o obj-$(CONFIG_XEN_DOM0) += $(dom0-y) 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..2b8553bd8715 100644 --- a/drivers/xen/events/events_base.c +++ b/drivers/xen/events/events_base.c @@ -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) @@ -1279,8 +1279,9 @@ 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/gntdev.c b/drivers/xen/gntdev.c index d5bb1a33d0a3..89274850741b 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -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..b1c7170e5c9e 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; @@ -863,6 +868,29 @@ 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..9e6a85104a20 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -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/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 07ef38325223..b7f51504f85a 100644 --- a/drivers/xen/xen-scsiback.c +++ b/drivers/xen/xen-scsiback.c @@ -204,8 +204,7 @@ static LIST_HEAD(scsiback_free_pages); static DEFINE_MUTEX(scsiback_mutex); static LIST_HEAD(scsiback_list); -/* Local pointer to allocated TCM configfs fabric module */ -static struct target_fabric_configfs *scsiback_fabric_configfs; +static const struct target_core_fabric_ops scsiback_ops; static void scsiback_get(struct vscsibk_info *info) { @@ -1902,7 +1901,7 @@ scsiback_make_tpg(struct se_wwn *wwn, tpg->tport = tport; tpg->tport_tpgt = tpgt; - ret = core_tpg_register(&scsiback_fabric_configfs->tf_ops, wwn, + ret = core_tpg_register(&scsiback_ops, wwn, &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL); if (ret < 0) { kfree(tpg); @@ -1944,7 +1943,9 @@ static int scsiback_check_false(struct se_portal_group *se_tpg) return 0; } -static struct target_core_fabric_ops scsiback_ops = { +static const struct target_core_fabric_ops scsiback_ops = { + .module = THIS_MODULE, + .name = "xen-pvscsi", .get_fabric_name = scsiback_get_fabric_name, .get_fabric_proto_ident = scsiback_get_fabric_proto_ident, .tpg_get_wwn = scsiback_get_fabric_wwn, @@ -1991,62 +1992,10 @@ static struct target_core_fabric_ops scsiback_ops = { .fabric_make_nodeacl = scsiback_make_nodeacl, .fabric_drop_nodeacl = scsiback_drop_nodeacl, #endif -}; - -static int scsiback_register_configfs(void) -{ - struct target_fabric_configfs *fabric; - int ret; - - pr_debug("fabric module %s on %s/%s on "UTS_RELEASE"\n", - VSCSI_VERSION, utsname()->sysname, utsname()->machine); - /* - * Register the top level struct config_item_type with TCM core - */ - fabric = target_fabric_configfs_init(THIS_MODULE, "xen-pvscsi"); - if (IS_ERR(fabric)) - return PTR_ERR(fabric); - /* - * Setup fabric->tf_ops from our local scsiback_ops - */ - fabric->tf_ops = scsiback_ops; - /* - * Setup default attribute lists for various fabric->tf_cit_tmpl - */ - fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = scsiback_wwn_attrs; - fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = scsiback_tpg_attrs; - fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL; - fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = scsiback_param_attrs; - fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL; - fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL; - fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; - fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL; - fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL; - /* - * Register the fabric for use within TCM - */ - ret = target_fabric_configfs_register(fabric); - if (ret < 0) { - target_fabric_configfs_free(fabric); - return ret; - } - /* - * Setup our local pointer to *fabric - */ - scsiback_fabric_configfs = fabric; - pr_debug("Set fabric -> scsiback_fabric_configfs\n"); - return 0; -}; - -static void scsiback_deregister_configfs(void) -{ - if (!scsiback_fabric_configfs) - return; - - target_fabric_configfs_deregister(scsiback_fabric_configfs); - scsiback_fabric_configfs = NULL; - pr_debug("Cleared scsiback_fabric_configfs\n"); + .tfc_wwn_attrs = scsiback_wwn_attrs, + .tfc_tpg_base_attrs = scsiback_tpg_attrs, + .tfc_tpg_param_attrs = scsiback_param_attrs, }; static const struct xenbus_device_id scsiback_ids[] = { @@ -2078,6 +2027,9 @@ static int __init scsiback_init(void) if (!xen_domain()) return -ENODEV; + pr_debug("xen-pvscsi: fabric module %s on %s/%s on "UTS_RELEASE"\n", + VSCSI_VERSION, utsname()->sysname, utsname()->machine); + scsiback_cachep = kmem_cache_create("vscsiif_cache", sizeof(struct vscsibk_pend), 0, 0, scsiback_init_pend); if (!scsiback_cachep) @@ -2087,7 +2039,7 @@ static int __init scsiback_init(void) if (ret) goto out_cache_destroy; - ret = scsiback_register_configfs(); + ret = target_register_template(&scsiback_ops); if (ret) goto out_unregister_xenbus; @@ -2110,7 +2062,7 @@ static void __exit scsiback_exit(void) BUG(); gnttab_free_pages(1, &page); } - scsiback_deregister_configfs(); + target_unregister_template(&scsiback_ops); xenbus_unregister_driver(&scsiback_driver); kmem_cache_destroy(scsiback_cachep); } diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 564b31584860..5390a674b5e3 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; + + 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 |