static int kvm_s390_stattrib_read_helper(S390StAttribState *sa,
uint64_t *start_gfn,
uint32_t count,
uint8_t *values,
uint32_t flags)
{
KVMS390StAttribState *sas = KVM_S390_STATTRIB(sa);
int r;
struct kvm_s390_cmma_log clog = {
.values = (uint64_t)values,
.start_gfn = *start_gfn,
.count = count,
.flags = flags,
};
r = kvm_vm_ioctl(kvm_state, KVM_S390_GET_CMMA_BITS, &clog);
if (r < 0) {
error_report("KVM_S390_GET_CMMA_BITS failed: %s", strerror(-r));
return r;
}
*start_gfn = clog.start_gfn;
sas->still_dirty = clog.remaining;
return clog.count;
}
static int kvm_s390_stattrib_get_stattr(S390StAttribState *sa,
uint64_t *start_gfn,
uint32_t count,
uint8_t *values)
{
return kvm_s390_stattrib_read_helper(sa, start_gfn, count, values, 0);
}
static int kvm_s390_stattrib_peek_stattr(S390StAttribState *sa,
uint64_t start_gfn,
uint32_t count,
uint8_t *values)
{
return kvm_s390_stattrib_read_helper(sa, &start_gfn, count, values,
KVM_S390_CMMA_PEEK);
}
static int kvm_s390_stattrib_set_stattr(S390StAttribState *sa,
uint64_t start_gfn,
uint32_t count,
uint8_t *values)
{
KVMS390StAttribState *sas = KVM_S390_STATTRIB(sa);
MachineState *machine = MACHINE(qdev_get_machine());
unsigned long max = machine->maxram_size / TARGET_PAGE_SIZE;
if (start_gfn + count > max) {
error_report("Out of memory bounds when setting storage attributes");
return -1;
}
if (!sas->incoming_buffer) {
sas->incoming_buffer = g_malloc0(max);
}
memcpy(sas->incoming_buffer + start_gfn, values, count);
return 0;
}
static bool machine_get_kernel_irqchip(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return ms->kernel_irqchip;
}
static char *machine_get_initrd(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return g_strdup(ms->initrd_filename);
}
static char *machine_get_firmware(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return g_strdup(ms->firmware);
}
static void machine_set_iommu(Object *obj, bool value, Error **errp)
{
MachineState *ms = MACHINE(obj);
ms->iommu = value;
}
static void machine_set_linux(Object *obj, bool value, Error **errp)
{
MachineState *ms = MACHINE(obj);
ms->is_linux = value;
}
static void machine_set_mem_merge(Object *obj, bool value, Error **errp)
{
MachineState *ms = MACHINE(obj);
ms->mem_merge = value;
}
static void machine_set_igd_gfx_passthru(Object *obj, bool value, Error **errp)
{
MachineState *ms = MACHINE(obj);
ms->igd_gfx_passthru = value;
}
static void machine_set_suppress_vmdesc(Object *obj, bool value, Error **errp)
{
MachineState *ms = MACHINE(obj);
ms->suppress_vmdesc = value;
}
void pc_dimm_memory_plug(DeviceState *dev, MemoryHotplugState *hpms,
MemoryRegion *mr, uint64_t align, Error **errp)
{
int slot;
MachineState *machine = MACHINE(qdev_get_machine());
PCDIMMDevice *dimm = PC_DIMM(dev);
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;
uint64_t addr;
addr = object_property_get_int(OBJECT(dimm), PC_DIMM_ADDR_PROP, &local_err);
if (local_err) {
goto out;
}
addr = pc_dimm_get_free_addr(hpms->base,
memory_region_size(&hpms->mr),
!addr ? NULL : &addr, align,
memory_region_size(mr), &local_err);
if (local_err) {
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_int(OBJECT(dev), addr, PC_DIMM_ADDR_PROP, &local_err);
if (local_err) {
goto out;
}
trace_mhp_pc_dimm_assigned_address(addr);
slot = object_property_get_int(OBJECT(dev), PC_DIMM_SLOT_PROP, &local_err);
if (local_err) {
goto out;
}
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, &local_err);
if (local_err) {
goto out;
}
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);
numa_set_mem_node_id(addr, memory_region_size(mr), dimm->node);
out:
error_propagate(errp, local_err);
}
static bool machine_get_igd_gfx_passthru(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return ms->igd_gfx_passthru;
}
static bool machine_get_enforce_config_section(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return ms->enforce_config_section;
}
static void machine_set_graphics(Object *obj, bool value, Error **errp)
{
MachineState *ms = MACHINE(obj);
ms->enable_graphics = value;
}
static bool machine_get_graphics(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return ms->enable_graphics;
}
static void machine_set_dump_guest_core(Object *obj, bool value, Error **errp)
{
MachineState *ms = MACHINE(obj);
ms->dump_guest_core = value;
}
static bool machine_get_suppress_vmdesc(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return ms->suppress_vmdesc;
}
static bool machine_get_linux(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return ms->is_linux;
}
static char *machine_get_append(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return g_strdup(ms->kernel_cmdline);
}
static bool machine_get_mem_merge(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return ms->mem_merge;
}
static void machine_set_hw_dtb(Object *obj, const char *value, Error **errp)
{
MachineState *ms = MACHINE(obj);
ms->hw_dtb = g_strdup(value);
}
static bool machine_get_usb(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return ms->usb;
}
static char *machine_get_dumpdtb(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return g_strdup(ms->dumpdtb);
}
static bool machine_get_iommu(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return ms->iommu;
}
static char *machine_get_accel(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return g_strdup(ms->accel);
}
static void machine_initfn(Object *obj)
{
MachineState *ms = MACHINE(obj);
object_property_add_str(obj, "accel",
machine_get_accel, machine_set_accel, NULL);
object_property_set_description(obj, "accel",
"Accelerator list",
NULL);
object_property_add_bool(obj, "kernel-irqchip",
machine_get_kernel_irqchip,
machine_set_kernel_irqchip,
NULL);
object_property_set_description(obj, "kernel-irqchip",
"Use KVM in-kernel irqchip",
NULL);
object_property_add(obj, "kvm-shadow-mem", "int",
machine_get_kvm_shadow_mem,
machine_set_kvm_shadow_mem,
NULL, NULL, NULL);
object_property_set_description(obj, "kvm-shadow-mem",
"KVM shadow MMU size",
NULL);
object_property_add_str(obj, "kernel",
machine_get_kernel, machine_set_kernel, NULL);
object_property_set_description(obj, "kernel",
"Linux kernel image file",
NULL);
object_property_add_str(obj, "initrd",
machine_get_initrd, machine_set_initrd, NULL);
object_property_set_description(obj, "initrd",
"Linux initial ramdisk file",
NULL);
object_property_add_str(obj, "append",
machine_get_append, machine_set_append, NULL);
object_property_set_description(obj, "append",
"Linux kernel command line",
NULL);
object_property_add_str(obj, "dtb",
machine_get_dtb, machine_set_dtb, NULL);
object_property_set_description(obj, "dtb",
"Linux kernel device tree file",
NULL);
object_property_add_str(obj, "hw-dtb",
machine_get_hw_dtb, machine_set_hw_dtb, NULL);
object_property_set_description(obj, "hw-dtb",
"Dump current dtb to a file and quit",
NULL);
object_property_add_str(obj, "dumpdtb",
machine_get_dumpdtb, machine_set_dumpdtb, NULL);
object_property_set_description(obj, "dumpdtb",
"Dump current dtb to a file and quit",
NULL);
object_property_add(obj, "phandle-start", "int",
machine_get_phandle_start,
machine_set_phandle_start,
NULL, NULL, NULL);
object_property_set_description(obj, "phandle-start",
"The first phandle ID we may generate dynamically",
NULL);
object_property_add_str(obj, "dt-compatible",
machine_get_dt_compatible,
machine_set_dt_compatible,
NULL);
object_property_set_description(obj, "dt-compatible",
"Overrides the \"compatible\" property of the dt root node",
NULL);
object_property_add_bool(obj, "dump-guest-core",
machine_get_dump_guest_core,
machine_set_dump_guest_core,
NULL);
object_property_set_description(obj, "dump-guest-core",
"Include guest memory in a core dump",
NULL);
object_property_add_bool(obj, "linux",
machine_get_linux, machine_set_linux, NULL);
object_property_set_description(obj, "linux",
"Force a Linux style boot",
NULL);
object_property_add_bool(obj, "mem-merge",
machine_get_mem_merge,
machine_set_mem_merge, NULL);
object_property_set_description(obj, "mem-merge",
"Enable/disable memory merge support",
NULL);
object_property_add_bool(obj, "usb",
machine_get_usb,
machine_set_usb, NULL);
object_property_set_description(obj, "usb",
"Set on/off to enable/disable usb",
NULL);
object_property_add_str(obj, "firmware",
machine_get_firmware,
machine_set_firmware, NULL);
object_property_set_description(obj, "firmware",
"Firmware image",
NULL);
object_property_add_bool(obj, "iommu",
machine_get_iommu,
machine_set_iommu, NULL);
object_property_set_description(obj, "iommu",
"Set on/off to enable/disable Intel IOMMU (VT-d)",
NULL);
/* Register notifier when init is done for sysbus sanity checks */
ms->sysbus_notifier.notify = machine_init_notify;
qemu_add_machine_init_done_notifier(&ms->sysbus_notifier);
}
static char *machine_get_dt_compatible(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return g_strdup(ms->dt_compatible);
}
static void machine_set_kernel_irqchip(Object *obj, bool value, Error **errp)
{
MachineState *ms = MACHINE(obj);
ms->kernel_irqchip = value;
}
static bool machine_get_dump_guest_core(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
return ms->dump_guest_core;
}
static void machine_set_append(Object *obj, const char *value, Error **errp)
{
MachineState *ms = MACHINE(obj);
ms->kernel_cmdline = g_strdup(value);
}
static void kvm_s390_stattrib_synchronize(S390StAttribState *sa)
{
KVMS390StAttribState *sas = KVM_S390_STATTRIB(sa);
MachineState *machine = MACHINE(qdev_get_machine());
unsigned long max = machine->maxram_size / TARGET_PAGE_SIZE;
unsigned long cx, len = 1 << 19;
int r;
struct kvm_s390_cmma_log clog = {
.flags = 0,
.mask = ~0ULL,
};
if (sas->incoming_buffer) {
for (cx = 0; cx + len <= max; cx += len) {
clog.start_gfn = cx;
clog.count = len;
clog.values = (uint64_t)(sas->incoming_buffer + cx * len);
r = kvm_vm_ioctl(kvm_state, KVM_S390_SET_CMMA_BITS, &clog);
if (r) {
error_report("KVM_S390_SET_CMMA_BITS failed: %s", strerror(-r));
return;
}
}
if (cx < max) {
clog.start_gfn = cx;
clog.count = max - cx;
clog.values = (uint64_t)(sas->incoming_buffer + cx * len);
r = kvm_vm_ioctl(kvm_state, KVM_S390_SET_CMMA_BITS, &clog);
if (r) {
error_report("KVM_S390_SET_CMMA_BITS failed: %s", strerror(-r));
}
}
g_free(sas->incoming_buffer);
sas->incoming_buffer = NULL;
}
}
static int kvm_s390_stattrib_set_migrationmode(S390StAttribState *sa, bool val)
{
struct kvm_device_attr attr = {
.group = KVM_S390_VM_MIGRATION,
.attr = val,
.addr = 0,
};
return kvm_vm_ioctl(kvm_state, KVM_SET_DEVICE_ATTR, &attr);
}
static long long kvm_s390_stattrib_get_dirtycount(S390StAttribState *sa)
{
KVMS390StAttribState *sas = KVM_S390_STATTRIB(sa);
uint8_t val[8];
kvm_s390_stattrib_peek_stattr(sa, 0, 1, val);
return sas->still_dirty;
}
static int kvm_s390_stattrib_get_active(S390StAttribState *sa)
{
return kvm_s390_cmma_active() && sa->migration_enabled;
}
static void kvm_s390_stattrib_class_init(ObjectClass *oc, void *data)
{
S390StAttribClass *sac = S390_STATTRIB_CLASS(oc);
DeviceClass *dc = DEVICE_CLASS(oc);
sac->get_stattr = kvm_s390_stattrib_get_stattr;
sac->peek_stattr = kvm_s390_stattrib_peek_stattr;
sac->set_stattr = kvm_s390_stattrib_set_stattr;
sac->set_migrationmode = kvm_s390_stattrib_set_migrationmode;
sac->get_dirtycount = kvm_s390_stattrib_get_dirtycount;
sac->synchronize = kvm_s390_stattrib_synchronize;
sac->get_active = kvm_s390_stattrib_get_active;
/* Reason: Can only be instantiated one time (internally) */
dc->user_creatable = false;
}
