[v6] refactor main RAM allocation to use hostmem backend

[PATCH v6 52/79] mips/mips_fulong2e: use memdev for RAM

Igor Mammedov posted 79 patches 5 years, 11 months ago

Diff against v1 v2 v3 v3 v4 v5
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[PATCH v6 52/79] mips/mips_fulong2e: use memdev for RAM

Posted by Igor Mammedov 5 years, 11 months ago

memory_region_allocate_system_memory() API is going away, so
replace it with memdev allocated MemoryRegion. The later is
initialized by generic code, so board only needs to opt in
to memdev scheme by providing
  MachineClass::default_ram_id
and using MachineState::ram instead of manually initializing
RAM memory region.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
CC: amarkovic@wavecomp.com
CC: aurelien@aurel32.net
CC: aleksandar.rikalo@rt-rk.com
---
 hw/mips/mips_fulong2e.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/hw/mips/mips_fulong2e.c b/hw/mips/mips_fulong2e.c
index cf00211bd2..c373ab066b 100644
--- a/hw/mips/mips_fulong2e.c
+++ b/hw/mips/mips_fulong2e.c
@@ -294,7 +294,6 @@ static void mips_fulong2e_init(MachineState *machine)
     const char *initrd_filename = machine->initrd_filename;
     char *filename;
     MemoryRegion *address_space_mem = get_system_memory();
-    MemoryRegion *ram = g_new(MemoryRegion, 1);
     MemoryRegion *bios = g_new(MemoryRegion, 1);
     long bios_size;
     uint8_t *spd_data;
@@ -320,13 +319,11 @@ static void mips_fulong2e_init(MachineState *machine)
     }
 
     /* allocate RAM */
-    memory_region_allocate_system_memory(ram, NULL, "fulong2e.ram",
-                                         machine->ram_size);
     memory_region_init_ram(bios, NULL, "fulong2e.bios", BIOS_SIZE,
                            &error_fatal);
     memory_region_set_readonly(bios, true);
 
-    memory_region_add_subregion(address_space_mem, 0, ram);
+    memory_region_add_subregion(address_space_mem, 0, machine->ram);
     memory_region_add_subregion(address_space_mem, 0x1fc00000LL, bios);
 
     /*
@@ -402,6 +399,7 @@ static void mips_fulong2e_machine_init(MachineClass *mc)
     mc->block_default_type = IF_IDE;
     mc->default_cpu_type = MIPS_CPU_TYPE_NAME("Loongson-2E");
     mc->default_ram_size = 256 * MiB;
+    mc->default_ram_id = "fulong2e.ram";
 }
 
 DEFINE_MACHINE("fulong2e", mips_fulong2e_machine_init)
-- 
2.18.1