@@ -32,6 +32,7 @@
#include "hw/xen/xen.h"
#include "hw/pci-host/pam.h"
#include "sysemu/sysemu.h"
+#include "hw/mem-hotplug/dimm.h"
/*
* I440FX chipset data sheet.
@@ -96,6 +97,7 @@ struct PCII440FXState {
PAMMemoryRegion pam_regions[13];
MemoryRegion smram_region;
uint8_t smm_enabled;
+ DimmBus dimm_bus;
};
@@ -221,6 +223,8 @@ static int i440fx_initfn(PCIDevice *dev)
d->dev.config[I440FX_SMRAM] = 0x02;
cpu_smm_register(&i440fx_set_smm, d);
+
+ qbus_create_inplace(&d->dimm_bus, TYPE_DIMM_BUS, DEVICE(d), "membus");
return 0;
}
@@ -244,6 +248,7 @@ static PCIBus *i440fx_common_init(const char *device_name,
PIIX3State *piix3;
PCII440FXState *f;
Range *pci_hole64 = &guest_info->pci_info.w64;
+ Range *hotplug_mem = &guest_info->hotplug_mem_win;
unsigned i;
dev = qdev_create(NULL, "i440FX-pcihost");
@@ -260,6 +265,13 @@ static PCIBus *i440fx_common_init(const char *device_name,
f->system_memory = address_space_mem;
f->pci_address_space = pci_address_space;
f->ram_memory = ram_memory;
+
+ f->dimm_bus.base = hotplug_mem->begin;
+ memory_region_init(&f->dimm_bus.as, "hotplug-memory",
+ hotplug_mem->end - hotplug_mem->begin);
+ memory_region_add_subregion(f->system_memory, f->dimm_bus.base,
+ &f->dimm_bus.as);
+
memory_region_init_alias(&f->pci_hole, "pci-hole", f->pci_address_space,
pci_hole_start, pci_hole_size);
memory_region_add_subregion(f->system_memory, pci_hole_start, &f->pci_hole);
it makes hot-plugged DimmDevices visible in guest address space. Signed-off-by: Igor Mammedov <imammedo@redhat.com> --- hw/pci-host/piix.c | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-)