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serial-isa: Use MAX_ISA_SERIAL_PORTS instead of MAX_SERIAL_PORTS 

The ISA serial port handling in serial-isa.c imposes a limit
of 4 serial ports. This is because we only know of 4 IO port
and IRQ settings for them, and is unrelated to the generic
MAX_SERIAL_PORTS limit, though they happen to both be set at
4 currently.

Use a new MAX_ISA_SERIAL_PORTS wherever that is the correct
limit to be checking against.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180420145249.32435-11-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2018-04-20 15:52:46 +01:00
parent 97274d0c05
commit def337ffda
6 changed files with 12 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
hw/char/serial-isa.c
View File

@ -39,10 +39,10 @@ typedef struct ISASerialState {
SerialState state;
} ISASerialState;
static const int isa_serial_io[MAX_SERIAL_PORTS] = {
static const int isa_serial_io[MAX_ISA_SERIAL_PORTS] = {
0x3f8, 0x2f8, 0x3e8, 0x2e8
};
static const int isa_serial_irq[MAX_SERIAL_PORTS] = {
static const int isa_serial_irq[MAX_ISA_SERIAL_PORTS] = {
4, 3, 4, 3
};
@ -56,9 +56,9 @@ static void serial_isa_realizefn(DeviceState *dev, Error **errp)
if (isa->index == -1) {
isa->index = index;
}
if (isa->index >= MAX_SERIAL_PORTS) {
if (isa->index >= MAX_ISA_SERIAL_PORTS) {
error_setg(errp, "Max. supported number of ISA serial ports is %d.",
MAX_SERIAL_PORTS);
MAX_ISA_SERIAL_PORTS);
return;
}
if (isa->iobase == -1) {
@ -138,7 +138,7 @@ void serial_hds_isa_init(ISABus *bus, int from, int to)
int i;
assert(from >= 0);
assert(to <= MAX_SERIAL_PORTS);
assert(to <= MAX_ISA_SERIAL_PORTS);
for (i = from; i < to; ++i) {
if (serial_hd(i)) {

2
hw/i386/pc.c
View File

@ -1524,7 +1524,7 @@ static void pc_superio_init(ISABus *isa_bus, bool create_fdctrl, bool no_vmport)
qemu_irq *a20_line;
ISADevice *i8042, *port92, *vmmouse;
serial_hds_isa_init(isa_bus, 0, MAX_SERIAL_PORTS);
serial_hds_isa_init(isa_bus, 0, MAX_ISA_SERIAL_PORTS);
parallel_hds_isa_init(isa_bus, MAX_PARALLEL_PORTS);
for (i = 0; i < MAX_FD; i++) {

2
hw/mips/mips_r4k.c
View File

@ -274,7 +274,7 @@ void mips_r4k_init(MachineState *machine)
pit = i8254_pit_init(isa_bus, 0x40, 0, NULL);
serial_hds_isa_init(isa_bus, 0, MAX_SERIAL_PORTS);
serial_hds_isa_init(isa_bus, 0, MAX_ISA_SERIAL_PORTS);
isa_vga_init(isa_bus);

2
hw/ppc/pnv.c
View File

@ -648,7 +648,7 @@ static void pnv_init(MachineState *machine)
pnv->isa_bus = pnv_isa_create(pnv->chips[0]);
/* Create serial port */
serial_hds_isa_init(pnv->isa_bus, 0, MAX_SERIAL_PORTS);
serial_hds_isa_init(pnv->isa_bus, 0, MAX_ISA_SERIAL_PORTS);
/* Create an RTC ISA device too */
mc146818_rtc_init(pnv->isa_bus, 2000, NULL);

2
hw/sparc64/sun4u.c
View File

@ -298,7 +298,7 @@ static void ebus_realize(PCIDevice *pci_dev, Error **errp)
0, NULL, 115200, serial_hd(i), DEVICE_BIG_ENDIAN);
i++;
}
serial_hds_isa_init(s->isa_bus, i, MAX_SERIAL_PORTS);
serial_hds_isa_init(s->isa_bus, i, MAX_ISA_SERIAL_PORTS);
/* Parallel ports */
parallel_hds_isa_init(s->isa_bus, MAX_PARALLEL_PORTS);

3
include/hw/char/serial.h
View File

@ -95,6 +95,9 @@ SerialState *serial_mm_init(MemoryRegion *address_space,
Chardev *chr, enum device_endian end);
/* serial-isa.c */
#define MAX_ISA_SERIAL_PORTS 4
#define TYPE_ISA_SERIAL "isa-serial"
void serial_hds_isa_init(ISABus *bus, int from, int to);