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[PATCH 7/7] pc: add floppy=OnOffAuto
From: |
Gerd Hoffmann |
Subject: |
[PATCH 7/7] pc: add floppy=OnOffAuto |
Date: |
Wed, 4 Aug 2021 16:27:37 +0200 |
Allows to enable/disable the floppy controller. Default depends on
MachineClass->no_floppy. It's ON for now, but we can flip the default
for 6.2+ machine types.
NOTE: This requires -nodefaults or no_floppy=1 to actually have an
effect. Otherwise the default floppy drive created by qemu will
auto-enable the floppy controller. Not sure how to deal with that best.
IMHO we should simply stop creating a default floppy, unfortunaly
that will break live migration.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
include/hw/i386/pc.h | 2 ++
hw/i386/pc.c | 23 +++++++++++++++++++++++
hw/i386/pc_piix.c | 8 +++++++-
3 files changed, 32 insertions(+), 1 deletion(-)
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 88dffe751724..b418ead6c260 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -38,6 +38,7 @@ typedef struct PCMachineState {
/* Configuration options: */
uint64_t max_ram_below_4g;
OnOffAuto vmport;
+ OnOffAuto floppy;
bool acpi_build_enabled;
bool smbus_enabled;
@@ -59,6 +60,7 @@ typedef struct PCMachineState {
#define PC_MACHINE_MAX_RAM_BELOW_4G "max-ram-below-4g"
#define PC_MACHINE_DEVMEM_REGION_SIZE "device-memory-region-size"
#define PC_MACHINE_VMPORT "vmport"
+#define PC_MACHINE_FLOPPY "floppy"
#define PC_MACHINE_SMBUS "smbus"
#define PC_MACHINE_SATA "sata"
#define PC_MACHINE_PIT "pit"
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index c2b9d62a358f..832ea9cc8ef8 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1468,6 +1468,23 @@ static void pc_machine_set_vmport(Object *obj, Visitor
*v, const char *name,
visit_type_OnOffAuto(v, name, &pcms->vmport, errp);
}
+static void pc_machine_get_floppy(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ PCMachineState *pcms = PC_MACHINE(obj);
+ OnOffAuto floppy = pcms->floppy;
+
+ visit_type_OnOffAuto(v, name, &floppy, errp);
+}
+
+static void pc_machine_set_floppy(Object *obj, Visitor *v, const char *name,
+ void *opaque, Error **errp)
+{
+ PCMachineState *pcms = PC_MACHINE(obj);
+
+ visit_type_OnOffAuto(v, name, &pcms->floppy, errp);
+}
+
static bool pc_machine_get_smbus(Object *obj, Error **errp)
{
PCMachineState *pcms = PC_MACHINE(obj);
@@ -1751,6 +1768,12 @@ static void pc_machine_class_init(ObjectClass *oc, void
*data)
object_class_property_set_description(oc, PC_MACHINE_VMPORT,
"Enable vmport (pc & q35)");
+ object_class_property_add(oc, PC_MACHINE_FLOPPY, "OnOffAuto",
+ pc_machine_get_floppy, pc_machine_set_floppy,
+ NULL, NULL);
+ object_class_property_set_description(oc, PC_MACHINE_FLOPPY,
+ "Enable floppy (pc only)");
+
object_class_property_add_bool(oc, PC_MACHINE_SMBUS,
pc_machine_get_smbus, pc_machine_set_smbus);
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 30b8bd6ea92d..7f81729e42cd 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -235,8 +235,14 @@ static void pc_init1(MachineState *machine,
pcms->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON;
}
+ if (pcms->floppy == ON_OFF_AUTO_AUTO) {
+ pcms->floppy = MACHINE_CLASS(pcmc)->no_floppy
+ ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON;
+ }
+
/* init basic PC hardware */
- pc_basic_device_init(pcms, isa_bus, x86ms->gsi, &rtc_state, true,
+ pc_basic_device_init(pcms, isa_bus, x86ms->gsi, &rtc_state,
+ pcms->floppy == ON_OFF_AUTO_ON,
0x4);
pc_nic_init(pcmc, isa_bus, pci_bus);
--
2.31.1
- [PATCH 0/7] floppy: build as modules., Gerd Hoffmann, 2021/08/04
- [PATCH 2/7] floppy: move isa_fdc_init_drives + fdctrl_init_drives, Gerd Hoffmann, 2021/08/04
- [PATCH 1/7] floppy: move isa_fdc_get_drive_type to separate source file., Gerd Hoffmann, 2021/08/04
- [PATCH 4/7] floppy: move sun4m_fdctrl_init, Gerd Hoffmann, 2021/08/04
- [PATCH 5/7] floppy: move cmos_get_fd_drive_type, Gerd Hoffmann, 2021/08/04
- [PATCH 3/7] floppy: move fdctrl_init_sysbus, Gerd Hoffmann, 2021/08/04
- [PATCH 7/7] pc: add floppy=OnOffAuto,
Gerd Hoffmann <=
- [PATCH 6/7] floppy: build as modules., Gerd Hoffmann, 2021/08/04
- Re: [PATCH 0/7] floppy: build as modules., Philippe Mathieu-Daudé, 2021/08/04