diff options
Diffstat (limited to 'hw/mem')
| -rw-r--r-- | hw/mem/Makefile.objs | 4 | ||||
| -rw-r--r-- | hw/mem/memory-device.c | 103 | ||||
| -rw-r--r-- | hw/mem/nvdimm.c | 9 | ||||
| -rw-r--r-- | hw/mem/pc-dimm.c | 84 | ||||
| -rw-r--r-- | hw/mem/trace-events | 5 |
5 files changed, 121 insertions, 84 deletions
diff --git a/hw/mem/Makefile.objs b/hw/mem/Makefile.objs index 10be4df2a2..3e2f7c5ca2 100644 --- a/hw/mem/Makefile.objs +++ b/hw/mem/Makefile.objs @@ -1,3 +1,3 @@ -common-obj-$(CONFIG_MEM_HOTPLUG) += pc-dimm.o -common-obj-$(CONFIG_MEM_HOTPLUG) += memory-device.o +common-obj-$(CONFIG_DIMM) += pc-dimm.o +common-obj-$(CONFIG_MEM_DEVICE) += memory-device.o common-obj-$(CONFIG_NVDIMM) += nvdimm.o diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c index 6de4f70bb4..7de1ccd497 100644 --- a/hw/mem/memory-device.c +++ b/hw/mem/memory-device.c @@ -17,6 +17,7 @@ #include "qemu/range.h" #include "hw/virtio/vhost.h" #include "sysemu/kvm.h" +#include "trace.h" static gint memory_device_addr_sort(gconstpointer a, gconstpointer b) { @@ -57,10 +58,9 @@ static int memory_device_used_region_size(Object *obj, void *opaque) if (object_dynamic_cast(obj, TYPE_MEMORY_DEVICE)) { const DeviceState *dev = DEVICE(obj); const MemoryDeviceState *md = MEMORY_DEVICE(obj); - const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(obj); if (dev->realized) { - *size += mdc->get_region_size(md); + *size += memory_device_get_region_size(md, &error_abort); } } @@ -87,16 +87,17 @@ static void memory_device_check_addable(MachineState *ms, uint64_t size, memory_device_used_region_size(OBJECT(ms), &used_region_size); if (used_region_size + size > ms->maxram_size - ms->ram_size) { error_setg(errp, "not enough space, currently 0x%" PRIx64 - " in use of total hot pluggable 0x" RAM_ADDR_FMT, + " in use of total space for memory devices 0x" RAM_ADDR_FMT, used_region_size, ms->maxram_size - ms->ram_size); return; } } -uint64_t memory_device_get_free_addr(MachineState *ms, const uint64_t *hint, - uint64_t align, uint64_t size, - Error **errp) +static uint64_t memory_device_get_free_addr(MachineState *ms, + const uint64_t *hint, + uint64_t align, uint64_t size, + Error **errp) { uint64_t address_space_start, address_space_end; GSList *list = NULL, *item; @@ -120,7 +121,7 @@ uint64_t memory_device_get_free_addr(MachineState *ms, const uint64_t *hint, /* address_space_start indicates the maximum alignment we expect */ if (QEMU_ALIGN_UP(address_space_start, align) != address_space_start) { - error_setg(errp, "the alignment (0%" PRIx64 ") is not supported", + error_setg(errp, "the alignment (0x%" PRIx64 ") is not supported", align); return 0; } @@ -145,11 +146,12 @@ uint64_t memory_device_get_free_addr(MachineState *ms, const uint64_t *hint, if (hint) { new_addr = *hint; if (new_addr < address_space_start) { - error_setg(errp, "can't add memory [0x%" PRIx64 ":0x%" PRIx64 - "] at 0x%" PRIx64, new_addr, size, address_space_start); + error_setg(errp, "can't add memory device [0x%" PRIx64 ":0x%" PRIx64 + "] before 0x%" PRIx64, new_addr, size, + address_space_start); return 0; } else if ((new_addr + size) > address_space_end) { - error_setg(errp, "can't add memory [0x%" PRIx64 ":0x%" PRIx64 + error_setg(errp, "can't add memory device [0x%" PRIx64 ":0x%" PRIx64 "] beyond 0x%" PRIx64, new_addr, size, address_space_end); return 0; @@ -166,15 +168,13 @@ uint64_t memory_device_get_free_addr(MachineState *ms, const uint64_t *hint, uint64_t md_size, md_addr; md_addr = mdc->get_addr(md); - md_size = mdc->get_region_size(md); - if (*errp) { - goto out; - } + md_size = memory_device_get_region_size(md, &error_abort); if (ranges_overlap(md_addr, md_size, new_addr, size)) { if (hint) { const DeviceState *d = DEVICE(md); - error_setg(errp, "address range conflicts with '%s'", d->id); + error_setg(errp, "address range conflicts with memory device" + " id='%s'", d->id ? d->id : "(unnamed)"); goto out; } new_addr = QEMU_ALIGN_UP(md_addr + md_size, align); @@ -232,7 +232,7 @@ static int memory_device_plugged_size(Object *obj, void *opaque) const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(obj); if (dev->realized) { - *size += mdc->get_plugged_size(md); + *size += mdc->get_plugged_size(md, &error_abort); } } @@ -249,22 +249,83 @@ uint64_t get_plugged_memory_size(void) return size; } -void memory_device_plug_region(MachineState *ms, MemoryRegion *mr, - uint64_t addr) +void memory_device_pre_plug(MemoryDeviceState *md, MachineState *ms, + const uint64_t *legacy_align, Error **errp) +{ + const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(md); + Error *local_err = NULL; + uint64_t addr, align; + MemoryRegion *mr; + + mr = mdc->get_memory_region(md, &local_err); + if (local_err) { + goto out; + } + + align = legacy_align ? *legacy_align : memory_region_get_alignment(mr); + addr = mdc->get_addr(md); + addr = memory_device_get_free_addr(ms, !addr ? NULL : &addr, align, + memory_region_size(mr), &local_err); + if (local_err) { + goto out; + } + mdc->set_addr(md, addr, &local_err); + if (!local_err) { + trace_memory_device_pre_plug(DEVICE(md)->id ? DEVICE(md)->id : "", + addr); + } +out: + error_propagate(errp, local_err); +} + +void memory_device_plug(MemoryDeviceState *md, MachineState *ms) { - /* we expect a previous call to memory_device_get_free_addr() */ + const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(md); + const uint64_t addr = mdc->get_addr(md); + MemoryRegion *mr; + + /* + * We expect that a previous call to memory_device_pre_plug() succeeded, so + * it can't fail at this point. + */ + mr = mdc->get_memory_region(md, &error_abort); g_assert(ms->device_memory); memory_region_add_subregion(&ms->device_memory->mr, addr - ms->device_memory->base, mr); + trace_memory_device_plug(DEVICE(md)->id ? DEVICE(md)->id : "", addr); } -void memory_device_unplug_region(MachineState *ms, MemoryRegion *mr) +void memory_device_unplug(MemoryDeviceState *md, MachineState *ms) { - /* we expect a previous call to memory_device_get_free_addr() */ + const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(md); + MemoryRegion *mr; + + /* + * We expect that a previous call to memory_device_pre_plug() succeeded, so + * it can't fail at this point. + */ + mr = mdc->get_memory_region(md, &error_abort); g_assert(ms->device_memory); memory_region_del_subregion(&ms->device_memory->mr, mr); + trace_memory_device_unplug(DEVICE(md)->id ? DEVICE(md)->id : "", + mdc->get_addr(md)); +} + +uint64_t memory_device_get_region_size(const MemoryDeviceState *md, + Error **errp) +{ + const MemoryDeviceClass *mdc = MEMORY_DEVICE_GET_CLASS(md); + MemoryRegion *mr; + + /* dropping const here is fine as we don't touch the memory region */ + mr = mdc->get_memory_region((MemoryDeviceState *)md, errp); + if (!mr) { + return 0; + } + + return memory_region_size(mr); } static const TypeInfo memory_device_info = { diff --git a/hw/mem/nvdimm.c b/hw/mem/nvdimm.c index 1c6674c4ed..49324f3fae 100644 --- a/hw/mem/nvdimm.c +++ b/hw/mem/nvdimm.c @@ -27,6 +27,7 @@ #include "qapi/error.h" #include "qapi/visitor.h" #include "hw/mem/nvdimm.h" +#include "hw/mem/memory-device.h" static void nvdimm_get_label_size(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) @@ -118,9 +119,10 @@ static void nvdimm_prepare_memory_region(NVDIMMDevice *nvdimm, Error **errp) nvdimm->nvdimm_mr->align = align; } -static MemoryRegion *nvdimm_get_memory_region(PCDIMMDevice *dimm, Error **errp) +static MemoryRegion *nvdimm_md_get_memory_region(MemoryDeviceState *md, + Error **errp) { - NVDIMMDevice *nvdimm = NVDIMM(dimm); + NVDIMMDevice *nvdimm = NVDIMM(md); Error *local_err = NULL; if (!nvdimm->nvdimm_mr) { @@ -190,11 +192,12 @@ static Property nvdimm_properties[] = { static void nvdimm_class_init(ObjectClass *oc, void *data) { PCDIMMDeviceClass *ddc = PC_DIMM_CLASS(oc); + MemoryDeviceClass *mdc = MEMORY_DEVICE_CLASS(oc); NVDIMMClass *nvc = NVDIMM_CLASS(oc); DeviceClass *dc = DEVICE_CLASS(oc); ddc->realize = nvdimm_realize; - ddc->get_memory_region = nvdimm_get_memory_region; + mdc->get_memory_region = nvdimm_md_get_memory_region; dc->props = nvdimm_properties; nvc->read_label_data = nvdimm_read_label_data; diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c index fb6bcaedc4..0c9b9e8292 100644 --- a/hw/mem/pc-dimm.c +++ b/hw/mem/pc-dimm.c @@ -29,72 +29,47 @@ static int pc_dimm_get_free_slot(const int *hint, int max_slots, Error **errp); -void pc_dimm_pre_plug(DeviceState *dev, MachineState *machine, +void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine, const uint64_t *legacy_align, Error **errp) { - PCDIMMDevice *dimm = PC_DIMM(dev); - PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); Error *local_err = NULL; - MemoryRegion *mr; - uint64_t addr, align; int slot; - slot = object_property_get_int(OBJECT(dev), PC_DIMM_SLOT_PROP, + slot = object_property_get_int(OBJECT(dimm), PC_DIMM_SLOT_PROP, &error_abort); slot = pc_dimm_get_free_slot(slot == PC_DIMM_UNASSIGNED_SLOT ? NULL : &slot, machine->ram_slots, &local_err); if (local_err) { goto out; } - object_property_set_int(OBJECT(dev), slot, PC_DIMM_SLOT_PROP, &error_abort); + object_property_set_int(OBJECT(dimm), slot, PC_DIMM_SLOT_PROP, + &error_abort); trace_mhp_pc_dimm_assigned_slot(slot); - mr = ddc->get_memory_region(dimm, &local_err); - if (local_err) { - goto out; - } - - align = legacy_align ? *legacy_align : memory_region_get_alignment(mr); - addr = object_property_get_uint(OBJECT(dev), PC_DIMM_ADDR_PROP, - &error_abort); - addr = memory_device_get_free_addr(machine, !addr ? NULL : &addr, align, - memory_region_size(mr), &local_err); - if (local_err) { - goto out; - } - trace_mhp_pc_dimm_assigned_address(addr); - object_property_set_uint(OBJECT(dev), addr, PC_DIMM_ADDR_PROP, - &error_abort); + memory_device_pre_plug(MEMORY_DEVICE(dimm), machine, legacy_align, + &local_err); out: error_propagate(errp, local_err); } -void pc_dimm_plug(DeviceState *dev, MachineState *machine, Error **errp) +void pc_dimm_plug(PCDIMMDevice *dimm, MachineState *machine, Error **errp) { - PCDIMMDevice *dimm = PC_DIMM(dev); PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); MemoryRegion *vmstate_mr = ddc->get_vmstate_memory_region(dimm, &error_abort); - MemoryRegion *mr = ddc->get_memory_region(dimm, &error_abort); - uint64_t addr; - - addr = object_property_get_uint(OBJECT(dev), PC_DIMM_ADDR_PROP, - &error_abort); - memory_device_plug_region(machine, mr, addr); - vmstate_register_ram(vmstate_mr, dev); + memory_device_plug(MEMORY_DEVICE(dimm), machine); + vmstate_register_ram(vmstate_mr, DEVICE(dimm)); } -void pc_dimm_unplug(DeviceState *dev, MachineState *machine) +void pc_dimm_unplug(PCDIMMDevice *dimm, MachineState *machine) { - PCDIMMDevice *dimm = PC_DIMM(dev); PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); MemoryRegion *vmstate_mr = ddc->get_vmstate_memory_region(dimm, &error_abort); - MemoryRegion *mr = ddc->get_memory_region(dimm, &error_abort); - memory_device_unplug_region(machine, mr); - vmstate_unregister_ram(vmstate_mr, dev); + memory_device_unplug(MEMORY_DEVICE(dimm), machine); + vmstate_unregister_ram(vmstate_mr, DEVICE(dimm)); } static int pc_dimm_slot2bitmap(Object *obj, void *opaque) @@ -163,16 +138,14 @@ static Property pc_dimm_properties[] = { static void pc_dimm_get_size(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { + Error *local_err = NULL; uint64_t value; - MemoryRegion *mr; - PCDIMMDevice *dimm = PC_DIMM(obj); - PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(obj); - mr = ddc->get_memory_region(dimm, errp); - if (!mr) { + value = memory_device_get_region_size(MEMORY_DEVICE(obj), &local_err); + if (local_err) { + error_propagate(errp, local_err); return; } - value = memory_region_size(mr); visit_type_uint64(v, name, &value, errp); } @@ -236,19 +209,16 @@ static uint64_t pc_dimm_md_get_addr(const MemoryDeviceState *md) return dimm->addr; } -static uint64_t pc_dimm_md_get_region_size(const MemoryDeviceState *md) +static void pc_dimm_md_set_addr(MemoryDeviceState *md, uint64_t addr, + Error **errp) { - /* dropping const here is fine as we don't touch the memory region */ - PCDIMMDevice *dimm = PC_DIMM(md); - const PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(md); - MemoryRegion *mr; - - mr = ddc->get_memory_region(dimm, &error_abort); - if (!mr) { - return 0; - } + object_property_set_uint(OBJECT(md), addr, PC_DIMM_ADDR_PROP, errp); +} - return memory_region_size(mr); +static MemoryRegion *pc_dimm_md_get_memory_region(MemoryDeviceState *md, + Error **errp) +{ + return pc_dimm_get_memory_region(PC_DIMM(md), errp); } static void pc_dimm_md_fill_device_info(const MemoryDeviceState *md, @@ -292,13 +262,13 @@ static void pc_dimm_class_init(ObjectClass *oc, void *data) dc->props = pc_dimm_properties; dc->desc = "DIMM memory module"; - ddc->get_memory_region = pc_dimm_get_memory_region; ddc->get_vmstate_memory_region = pc_dimm_get_memory_region; mdc->get_addr = pc_dimm_md_get_addr; + mdc->set_addr = pc_dimm_md_set_addr; /* for a dimm plugged_size == region_size */ - mdc->get_plugged_size = pc_dimm_md_get_region_size; - mdc->get_region_size = pc_dimm_md_get_region_size; + mdc->get_plugged_size = memory_device_get_region_size; + mdc->get_memory_region = pc_dimm_md_get_memory_region; mdc->fill_device_info = pc_dimm_md_fill_device_info; } diff --git a/hw/mem/trace-events b/hw/mem/trace-events index e150dcc497..0f2f278ff2 100644 --- a/hw/mem/trace-events +++ b/hw/mem/trace-events @@ -2,4 +2,7 @@ # hw/mem/pc-dimm.c mhp_pc_dimm_assigned_slot(int slot) "%d" -mhp_pc_dimm_assigned_address(uint64_t addr) "0x%"PRIx64 +# hw/mem/memory-device.c +memory_device_pre_plug(const char *id, uint64_t addr) "id=%s addr=0x%"PRIx64 +memory_device_plug(const char *id, uint64_t addr) "id=%s addr=0x%"PRIx64 +memory_device_unplug(const char *id, uint64_t addr) "id=%s addr=0x%"PRIx64 |