On 18/6/25 13:27, Mark Cave-Ayland wrote:
Now that pc_init_isa() is independent of any PCI initialisation, move it into a
separate isapc.c file. This enables us to finally fix the dependency of ISAPC on
I440FX in hw/i386/Kconfig.
Note that as part of the move to a separate file we can see that the licence
text
is a verbatim copy of the MIT licence. The text originates from commit
1df912cf9e
("VL license of the day is MIT/BSD") so we can be sure that this was the
original
intent. As a consequence we can update the file header to use a SPDX tag as per
the current project contribution guidelines.
Signed-off-by: Mark Cave-Ayland <mark.caveayl...@nutanix.com>
---
hw/i386/Kconfig | 3 -
hw/i386/isapc.c | 145 ++++++++++++++++++++++++++++++++++++++++++++
hw/i386/meson.build | 1 +
hw/i386/pc_piix.c | 117 -----------------------------------
4 files changed, 146 insertions(+), 120 deletions(-)
create mode 100644 hw/i386/isapc.c
diff --git a/hw/i386/isapc.c b/hw/i386/isapc.c
new file mode 100644
index 0000000000..74ffd19307
--- /dev/null
+++ b/hw/i386/isapc.c
@@ -0,0 +1,145 @@
+/*
+ * QEMU PC System Emulator
+ *
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "qemu/osdep.h"
+
+#include "hw/char/parallel-isa.h"
+#include "hw/dma/i8257.h"
+#include "hw/loader.h"
+#include "hw/i386/pc.h"
+#include "hw/ide/isa.h"
+#include "hw/ide/ide-bus.h"
+#include "system/kvm.h"
+#include "hw/i386/kvm/clock.h"
+#include "hw/xen/xen-x86.h"
+#include "system/xen.h"
+#include "hw/rtc/mc146818rtc.h"
+#include "target/i386/cpu.h"
+
+static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
+static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
+static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
+
+
+static void pc_init_isa(MachineState *machine)
+{
+ PCMachineState *pcms = PC_MACHINE(machine);
+ PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
+ X86MachineState *x86ms = X86_MACHINE(machine);
+ MemoryRegion *system_memory = get_system_memory();
+ MemoryRegion *system_io = get_system_io();
+ ISABus *isa_bus;
+ GSIState *gsi_state;
+ MemoryRegion *ram_memory;
+ MemoryRegion *rom_memory = system_memory;
+ DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
+ uint32_t irq;
+ int i;
+
+ /*
+ * There is no RAM split for the isapc machine
+ */
+ if (xen_enabled()) {
+ xen_hvm_init_pc(pcms, &ram_memory);
+ } else {
+ ram_memory = machine->ram;
+
+ pcms->max_ram_below_4g = 0xe0000000; /* default: 3.5G */
+ x86ms->above_4g_mem_size = 0;
+ x86ms->below_4g_mem_size = machine->ram_size;
+ }
+
+ x86_cpus_init(x86ms, pcmc->default_cpu_version);
Should we check the CPU is 32-bit or is it OK to use 64-bit CPUs?
