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[PATCH v2 45/86] x86:microvm: use memdev for RAM
From: |
Igor Mammedov |
Subject: |
[PATCH v2 45/86] x86:microvm: use memdev for RAM |
Date: |
Wed, 15 Jan 2020 16:07:00 +0100 |
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 <address@hidden>
---
CC: address@hidden
CC: address@hidden
CC: address@hidden
CC: address@hidden
CC: address@hidden
---
hw/i386/microvm.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
index 827ce29..7d78b99 100644
--- a/hw/i386/microvm.c
+++ b/hw/i386/microvm.c
@@ -167,7 +167,7 @@ static void microvm_memory_init(MicrovmMachineState *mms)
{
MachineState *machine = MACHINE(mms);
X86MachineState *x86ms = X86_MACHINE(mms);
- MemoryRegion *ram, *ram_below_4g, *ram_above_4g;
+ MemoryRegion *ram_below_4g, *ram_above_4g;
MemoryRegion *system_memory = get_system_memory();
FWCfgState *fw_cfg;
ram_addr_t lowmem;
@@ -214,12 +214,8 @@ static void microvm_memory_init(MicrovmMachineState *mms)
x86ms->below_4g_mem_size = machine->ram_size;
}
- ram = g_malloc(sizeof(*ram));
- memory_region_allocate_system_memory(ram, NULL, "microvm.ram",
- machine->ram_size);
-
ram_below_4g = g_malloc(sizeof(*ram_below_4g));
- memory_region_init_alias(ram_below_4g, NULL, "ram-below-4g", ram,
+ memory_region_init_alias(ram_below_4g, NULL, "ram-below-4g", machine->ram,
0, x86ms->below_4g_mem_size);
memory_region_add_subregion(system_memory, 0, ram_below_4g);
@@ -227,7 +223,8 @@ static void microvm_memory_init(MicrovmMachineState *mms)
if (x86ms->above_4g_mem_size > 0) {
ram_above_4g = g_malloc(sizeof(*ram_above_4g));
- memory_region_init_alias(ram_above_4g, NULL, "ram-above-4g", ram,
+ memory_region_init_alias(ram_above_4g, NULL, "ram-above-4g",
+ machine->ram,
x86ms->below_4g_mem_size,
x86ms->above_4g_mem_size);
memory_region_add_subregion(system_memory, 0x100000000ULL,
@@ -502,6 +499,7 @@ static void microvm_class_init(ObjectClass *oc, void *data)
mc->auto_enable_numa_with_memhp = false;
mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE;
mc->nvdimm_supported = false;
+ mc->default_ram_id = "microvm.ram";
/* Avoid relying too much on kernel components */
mc->default_kernel_irqchip_split = true;
--
2.7.4
- Re: [PATCH v2 35/86] arm:xilinx_zynq: use memdev for RAM, (continued)
- [PATCH v2 42/86] hw/hppa/machine: Restrict the total memory size to 3GB, Igor Mammedov, 2020/01/15
- [PATCH v2 39/86] null-machine: use memdev for RAM, Igor Mammedov, 2020/01/15
- [PATCH v2 37/86] arm:xlnx-zcu102: use memdev for RAM, Igor Mammedov, 2020/01/15
- [PATCH v2 40/86] cris:axis_dev88: use memdev for RAM, Igor Mammedov, 2020/01/15
- [PATCH v2 43/86] hw/hppa/machine: Map the PDC memory region with higher priority, Igor Mammedov, 2020/01/15
- [PATCH v2 45/86] x86:microvm: use memdev for RAM,
Igor Mammedov <=
- [PATCH v2 44/86] hppa: use memdev for RAM, Igor Mammedov, 2020/01/15
- [PATCH v2 38/86] s390x:s390-virtio-ccw: use memdev for RAM, Igor Mammedov, 2020/01/15
- [PATCH v2 41/86] hw/hppa/machine: Correctly check the firmware is in PDC range, Igor Mammedov, 2020/01/15