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[Qemu-devel] [PATCH v4 22/22] petalogix-ml605: Make the LMB visible only
From: |
Edgar E. Iglesias |
Subject: |
[Qemu-devel] [PATCH v4 22/22] petalogix-ml605: Make the LMB visible only to the CPU |
Date: |
Mon, 3 Feb 2014 19:44:50 +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 37cbbfd..d1acbff 100644
--- a/hw/microblaze/petalogix_ml605_mmu.c
+++ b/hw/microblaze/petalogix_ml605_mmu.c
@@ -86,16 +86,31 @@ petalogix_ml605_init(QEMUMachineInitArgs *args)
MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
qemu_irq irq[32];
+ MemoryRegion *sysmem_alias = g_new(MemoryRegion, 1);
+ MemoryRegion *mr_cpu_root = g_new(MemoryRegion, 1);
+ AddressSpace *as_cpu = g_malloc0(sizeof(*as_cpu));
+
+ /* 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", &error_abort);
+ /* 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);
--
1.8.1.2
- [Qemu-devel] [PATCH v4 11/22] exec: Make stq_*_phys input an AddressSpace, (continued)
- [Qemu-devel] [PATCH v4 11/22] exec: Make stq_*_phys input an AddressSpace, Edgar E. Iglesias, 2014/02/03
- [Qemu-devel] [PATCH v4 12/22] exec: Make stl_*_phys input an AddressSpace, Edgar E. Iglesias, 2014/02/03
- [Qemu-devel] [PATCH v4 13/22] exec: Make stl_phys_notdirty input an AddressSpace, Edgar E. Iglesias, 2014/02/03
- [Qemu-devel] [PATCH v4 14/22] exec: Make stw_*_phys input an AddressSpace, Edgar E. Iglesias, 2014/02/03
- [Qemu-devel] [PATCH v4 15/22] exec: Make stb_phys input an AddressSpace, Edgar E. Iglesias, 2014/02/03
- [Qemu-devel] [PATCH v4 17/22] exec: Make cpu_memory_rw_debug use the CPUs AS, Edgar E. Iglesias, 2014/02/03
- [Qemu-devel] [PATCH v4 18/22] memory: Add address_space_find_by_name(), Edgar E. Iglesias, 2014/02/03
- [Qemu-devel] [PATCH v4 19/22] qdev: Add qdev property type for AddressSpaces, Edgar E. Iglesias, 2014/02/03
- [Qemu-devel] [PATCH v4 20/22] cpu: Add address-space property, Edgar E. Iglesias, 2014/02/03
- [Qemu-devel] [PATCH v4 21/22] petalogix-ml605: Create the CPU with object_new(), Edgar E. Iglesias, 2014/02/03
- [Qemu-devel] [PATCH v4 22/22] petalogix-ml605: Make the LMB visible only to the CPU,
Edgar E. Iglesias <=
- [Qemu-devel] [PATCH v4 16/22] exec: Make cpu_physical_memory_write_rom input an AS, Edgar E. Iglesias, 2014/02/03
- Re: [Qemu-devel] [PATCH v4 00/22] Steps towards per CPU address-spaces, Peter Maydell, 2014/02/05
- Re: [Qemu-devel] [PATCH v4 00/22] Steps towards per CPU address-spaces, Andreas Färber, 2014/02/09
- Re: [Qemu-devel] [PATCH v4 00/22] Steps towards per CPU address-spaces, Edgar E. Iglesias, 2014/02/10
- Re: [Qemu-devel] [PATCH v4 00/22] Steps towards per CPU address-spaces, Peter Maydell, 2014/02/10