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[Qemu-devel] [PATCH v1 22/22] petalogix-ml605: Make the LMB visible only
From: |
edgar . iglesias |
Subject: |
[Qemu-devel] [PATCH v1 22/22] petalogix-ml605: Make the LMB visible only to the CPU |
Date: |
Mon, 16 Dec 2013 18:06:10 +1000 |
From: "Edgar E. Iglesias" <address@hidden>
Signed-off-by: Edgar E. Iglesias <address@hidden>
---
hw/microblaze/petalogix_ml605_mmu.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/hw/microblaze/petalogix_ml605_mmu.c
b/hw/microblaze/petalogix_ml605_mmu.c
index 4009ff5..0a13b0e 100644
--- a/hw/microblaze/petalogix_ml605_mmu.c
+++ b/hw/microblaze/petalogix_ml605_mmu.c
@@ -88,10 +88,18 @@ petalogix_ml605_init(QEMUMachineInitArgs *args)
hwaddr ddr_base = MEMORY_BASEADDR;
MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
+ MemoryRegion *sysmem_alias = g_new(MemoryRegion, 1);
+ MemoryRegion *mr_cpu_root = g_new(MemoryRegion, 1);
+ AddressSpace *as_cpu = g_malloc0(sizeof(*as_cpu));
qemu_irq irq[32], *cpu_irq;
+ /* Setup the CPU specific address-space. */
+ memory_region_init(mr_cpu_root, NULL, "as-cpu-root", INT64_MAX);
+ address_space_init(as_cpu, mr_cpu_root, "as/cpu");
+
/* init CPUs */
cpu = MICROBLAZE_CPU(object_new(TYPE_MICROBLAZE_CPU));
+ qdev_prop_set_address_space(DEVICE(cpu), "address-space", as_cpu);
object_property_set_bool(OBJECT(cpu), true, "realized", &err);
if (err) {
error_report("%s", error_get_pretty(err));
@@ -100,11 +108,18 @@ petalogix_ml605_init(QEMUMachineInitArgs *args)
env = &cpu->env;
+ /* Populate the CPU AS with the LMB only visible to the CPU. */
+ memory_region_init_alias(sysmem_alias, NULL, "sysmem_alias",
+ address_space_mem, 0,
+ memory_region_size(address_space_mem));
+ memory_region_add_subregion(mr_cpu_root, 0x00000000, sysmem_alias);
+
/* Attach emulated BRAM through the LMB. */
memory_region_init_ram(phys_lmb_bram, NULL, "petalogix_ml605.lmb_bram",
LMB_BRAM_SIZE);
vmstate_register_ram_global(phys_lmb_bram);
- memory_region_add_subregion(address_space_mem, 0x00000000, phys_lmb_bram);
+ memory_region_add_subregion_overlap(mr_cpu_root, 0x00000000,
+ phys_lmb_bram, 2);
memory_region_init_ram(phys_ram, NULL, "petalogix_ml605.ram", ram_size);
vmstate_register_ram_global(phys_ram);
--
1.7.10.4
- [Qemu-devel] [PATCH v1 15/22] exec: Make stl_*_phys input an AddressSpace, (continued)
- [Qemu-devel] [PATCH v1 15/22] exec: Make stl_*_phys input an AddressSpace, edgar . iglesias, 2013/12/16
- [Qemu-devel] [PATCH v1 16/22] exec: Make stl_phys_notdirty input an AddressSpace, edgar . iglesias, 2013/12/16
- [Qemu-devel] [PATCH v1 17/22] exec: Make stw_*_phys input an AddressSpace, edgar . iglesias, 2013/12/16
- [Qemu-devel] [PATCH v1 18/22] exec: Make stb_phys input an AddressSpace, edgar . iglesias, 2013/12/16
- [Qemu-devel] [PATCH v1 19/22] exec: Make cpu_physical_memory_write_rom input an AS, edgar . iglesias, 2013/12/16
- [Qemu-devel] [PATCH v1 20/22] exec: Make cpu_memory_rw_debug use the CPUs AS, edgar . iglesias, 2013/12/16
- [Qemu-devel] [PATCH v1 21/22] petalogix-ml605: Create the CPU with object_new(), edgar . iglesias, 2013/12/16
- [Qemu-devel] [PATCH v1 22/22] petalogix-ml605: Make the LMB visible only to the CPU,
edgar . iglesias <=
- Re: [Qemu-devel] [PATCH v1 22/22] petalogix-ml605: Make the LMB visible only to the CPU, Edgar E. Iglesias, 2013/12/16
- Re: [Qemu-devel] [PATCH v1 22/22] petalogix-ml605: Make the LMB visible only to the CPU, Edgar E. Iglesias, 2013/12/16