diff options
| -rw-r--r-- | hw/mem/memory-device.c | 51 | ||||
| -rw-r--r-- | hw/mem/pc-dimm.c | 60 | ||||
| -rw-r--r-- | include/hw/mem/pc-dimm.h | 1 |
3 files changed, 51 insertions, 61 deletions
diff --git a/hw/mem/memory-device.c b/hw/mem/memory-device.c index a2cb85462f..8535ddcb14 100644 --- a/hw/mem/memory-device.c +++ b/hw/mem/memory-device.c @@ -15,6 +15,8 @@ #include "qapi/error.h" #include "hw/boards.h" #include "qemu/range.h" +#include "hw/virtio/vhost.h" +#include "sysemu/kvm.h" static gint memory_device_addr_sort(gconstpointer a, gconstpointer b) { @@ -48,6 +50,50 @@ static int memory_device_build_list(Object *obj, void *opaque) return 0; } +static int memory_device_used_region_size(Object *obj, void *opaque) +{ + uint64_t *size = 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); + } + } + + object_child_foreach(obj, memory_device_used_region_size, opaque); + return 0; +} + +static void memory_device_check_addable(MachineState *ms, uint64_t size, + Error **errp) +{ + uint64_t used_region_size = 0; + + /* we will need a new memory slot for kvm and vhost */ + if (kvm_enabled() && !kvm_has_free_slot(ms)) { + error_setg(errp, "hypervisor has no free memory slots left"); + return; + } + if (!vhost_has_free_slot()) { + error_setg(errp, "a used vhost backend has no free memory slots left"); + return; + } + + /* will we exceed the total amount of memory specified */ + 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, + 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) @@ -73,6 +119,11 @@ uint64_t memory_device_get_free_addr(MachineState *ms, const uint64_t *hint, g_assert(QEMU_ALIGN_UP(address_space_start, align) == address_space_start); g_assert(address_space_end >= address_space_start); + memory_device_check_addable(ms, size, errp); + if (*errp) { + return 0; + } + if (hint && QEMU_ALIGN_UP(*hint, align) != *hint) { error_setg(errp, "address must be aligned to 0x%" PRIx64 " bytes", align); diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c index 9b70174fd9..8aa2d36ce9 100644 --- a/hw/mem/pc-dimm.c +++ b/hw/mem/pc-dimm.c @@ -25,9 +25,7 @@ #include "qapi/error.h" #include "qapi/visitor.h" #include "sysemu/numa.h" -#include "sysemu/kvm.h" #include "trace.h" -#include "hw/virtio/vhost.h" typedef struct pc_dimms_capacity { uint64_t size; @@ -43,7 +41,6 @@ void pc_dimm_memory_plug(DeviceState *dev, MachineState *machine, PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); MemoryRegion *vmstate_mr = ddc->get_vmstate_memory_region(dimm); Error *local_err = NULL; - uint64_t existing_dimms_capacity = 0; MemoryRegion *mr; uint64_t addr; @@ -64,20 +61,6 @@ void pc_dimm_memory_plug(DeviceState *dev, MachineState *machine, goto out; } - existing_dimms_capacity = pc_existing_dimms_capacity(&local_err); - if (local_err) { - goto out; - } - - if (existing_dimms_capacity + memory_region_size(mr) > - machine->maxram_size - machine->ram_size) { - error_setg(&local_err, "not enough space, currently 0x%" PRIx64 - " in use of total hot pluggable 0x" RAM_ADDR_FMT, - existing_dimms_capacity, - machine->maxram_size - machine->ram_size); - goto out; - } - object_property_set_uint(OBJECT(dev), addr, PC_DIMM_ADDR_PROP, &local_err); if (local_err) { goto out; @@ -100,17 +83,6 @@ void pc_dimm_memory_plug(DeviceState *dev, MachineState *machine, } trace_mhp_pc_dimm_assigned_slot(slot); - if (kvm_enabled() && !kvm_has_free_slot(machine)) { - error_setg(&local_err, "hypervisor has no free memory slots left"); - goto out; - } - - if (!vhost_has_free_slot()) { - error_setg(&local_err, "a used vhost backend has no free" - " memory slots left"); - goto out; - } - memory_region_add_subregion(&hpms->mr, addr - hpms->base, mr); vmstate_register_ram(vmstate_mr, dev); @@ -129,38 +101,6 @@ void pc_dimm_memory_unplug(DeviceState *dev, MachineState *machine) vmstate_unregister_ram(vmstate_mr, dev); } -static int pc_existing_dimms_capacity_internal(Object *obj, void *opaque) -{ - pc_dimms_capacity *cap = opaque; - uint64_t *size = &cap->size; - - if (object_dynamic_cast(obj, TYPE_PC_DIMM)) { - DeviceState *dev = DEVICE(obj); - - if (dev->realized) { - (*size) += object_property_get_uint(obj, PC_DIMM_SIZE_PROP, - cap->errp); - } - - if (cap->errp && *cap->errp) { - return 1; - } - } - object_child_foreach(obj, pc_existing_dimms_capacity_internal, opaque); - return 0; -} - -uint64_t pc_existing_dimms_capacity(Error **errp) -{ - pc_dimms_capacity cap; - - cap.size = 0; - cap.errp = errp; - - pc_existing_dimms_capacity_internal(qdev_get_machine(), &cap); - return cap.size; -} - static int pc_dimm_slot2bitmap(Object *obj, void *opaque) { unsigned long *bitmap = opaque; diff --git a/include/hw/mem/pc-dimm.h b/include/hw/mem/pc-dimm.h index e37fb5d5db..627c8601d9 100644 --- a/include/hw/mem/pc-dimm.h +++ b/include/hw/mem/pc-dimm.h @@ -78,7 +78,6 @@ typedef struct PCDIMMDeviceClass { int pc_dimm_get_free_slot(const int *hint, int max_slots, Error **errp); -uint64_t pc_existing_dimms_capacity(Error **errp); void pc_dimm_memory_plug(DeviceState *dev, MachineState *machine, uint64_t align, Error **errp); void pc_dimm_memory_unplug(DeviceState *dev, MachineState *machine); |