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[Qemu-arm] [RFC v2 09/15] hw/arm/boot: Expose the PC-DIMM nodes in the D
From: |
Eric Auger |
Subject: |
[Qemu-arm] [RFC v2 09/15] hw/arm/boot: Expose the PC-DIMM nodes in the DT |
Date: |
Mon, 2 Jul 2018 19:22:36 +0200 |
From: Shameer Kolothum <address@hidden>
This patch add memory nodes corresponding to PC-DIMM regions.
NV_DIMM and ACPI_NVDIMM configs are not yet set for ARM so we
don't need to care about NV-DIMM at this stage.
Signed-off-by: Shameer Kolothum <address@hidden>
Signed-off-by: Eric Auger <address@hidden>
---
v1 -> v2:
- added qapi_free_MemoryDeviceInfoList and simplify the loop
---
hw/arm/boot.c | 38 ++++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/hw/arm/boot.c b/hw/arm/boot.c
index 5243a25..2c7d558 100644
--- a/hw/arm/boot.c
+++ b/hw/arm/boot.c
@@ -19,6 +19,7 @@
#include "sysemu/numa.h"
#include "hw/boards.h"
#include "hw/loader.h"
+#include "hw/mem/memory-device.h"
#include "elf.h"
#include "sysemu/device_tree.h"
#include "qemu/config-file.h"
@@ -516,6 +517,35 @@ static void fdt_add_psci_node(void *fdt)
qemu_fdt_setprop_cell(fdt, "/psci", "migrate", migrate_fn);
}
+static int fdt_add_hotpluggable_memory_nodes(void *fdt,
+ uint64_t base, uint64_t len,
+ uint32_t acells, uint32_t scells)
{
+ MemoryDeviceInfoList *info, *info_list = qmp_memory_device_list();
+ MemoryDeviceInfo *mi;
+ PCDIMMDeviceInfo *di;
+ bool is_nvdimm;
+ int ret = 0;
+
+ for (info = info_list; info != NULL; info = info->next) {
+ mi = info->value;
+ is_nvdimm = (mi->type == MEMORY_DEVICE_INFO_KIND_NVDIMM);
+ di = !is_nvdimm ? mi->u.dimm.data : mi->u.nvdimm.data;
+
+ if (is_nvdimm) {
+ ret = -ENOENT; /* NV-DIMM not yet supported */
+ } else {
+ ret = fdt_add_memory_node(fdt, acells, di->addr,
+ scells, di->size, di->node);
+ }
+ if (ret < 0) {
+ goto out;
+ }
+ }
+out:
+ qapi_free_MemoryDeviceInfoList(info_list);
+ return ret;
+}
+
int arm_load_dtb(hwaddr addr, const struct arm_boot_info *binfo,
hwaddr addr_limit, AddressSpace *as)
{
@@ -611,6 +641,14 @@ int arm_load_dtb(hwaddr addr, const struct arm_boot_info
*binfo,
}
}
+ rc = fdt_add_hotpluggable_memory_nodes(fdt, binfo->device_memory_start,
+ binfo->device_memory_size,
+ acells, scells);
+ if (rc < 0) {
+ fprintf(stderr, "couldn't add hotpluggable memory nodes\n");
+ goto fail;
+ }
+
rc = fdt_path_offset(fdt, "/chosen");
if (rc < 0) {
qemu_fdt_add_subnode(fdt, "/chosen");
--
2.5.5
- [Qemu-arm] [RFC v2 00/15] ARM virt: PCDIMM/NVDIMM at 2TB, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 01/15] linux-headers: header update for KVM/ARM KVM_ARM_GET_MAX_VM_PHYS_SHIFT, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 02/15] hw/boards: Add a MachineState parameter to kvm_type callback, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 03/15] kvm: add kvm_arm_get_max_vm_phys_shift, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 04/15] hw/arm/virt: support kvm_type property, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 05/15] hw/arm/virt: handle max_vm_phys_shift conflicts on migration, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 06/15] hw/arm/virt: Allocate device_memory, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 07/15] hw/arm/virt: Add memory hotplug framework, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 08/15] hw/arm/boot: introduce fdt_add_memory_node helper, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 09/15] hw/arm/boot: Expose the PC-DIMM nodes in the DT,
Eric Auger <=
- [Qemu-arm] [RFC v2 10/15] acpi: move build_srat_hotpluggable_memory to generic ACPI source, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 11/15] hw/arm/virt-acpi-build: Add PC-DIMM in SRAT, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 12/15] nvdimm: use configurable ACPI IO base and size, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 13/15] hw/arm/virt: Add nvdimm hot-plug infrastructure, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 14/15] hw/arm/boot: Expose the pmem nodes in the DT, Eric Auger, 2018/07/02
- [Qemu-arm] [RFC v2 15/15] hw/arm/virt: Add nvdimm and nvdimm-persistence options, Eric Auger, 2018/07/02
- Re: [Qemu-arm] [Qemu-devel] [RFC v2 00/15] ARM virt: PCDIMM/NVDIMM at 2TB, no-reply, 2018/07/03