haraldwolff/qemu-patch-raspberry4
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xlnx-zynqmp: Properly support the smp command line option

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Allow the -smp command line option to control the number of CPUs we
create.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Tested-by: Emilio G. Cota <cota@braap.org>
Message-id: 1510343626-25861-3-git-send-email-cota@braap.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Alistair Francis 2017-11-13 13:55:26 +00:00 committed by Peter Maydell
parent 2dda635410
commit 6908ec448b
2 changed files with 18 additions and 11 deletions
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3
hw/arm/xlnx-zcu102.c
View file

@ -235,7 +235,8 @@ static void xlnx_zcu102_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
mc->desc = "Xilinx ZynqMP ZCU102 board";
mc->desc = "Xilinx ZynqMP ZCU102 board with 4xA53s and 2xR5s based on " \
"the value of smp";
mc->init = xlnx_zcu102_init;
mc->block_default_type = IF_IDE;
mc->units_per_default_bus = 1;

26
hw/arm/xlnx-zynqmp.c
View file

@ -98,8 +98,9 @@ static void xlnx_zynqmp_create_rpu(XlnxZynqMPState *s, const char *boot_cpu,
{
Error *err = NULL;
int i;
int num_rpus = MIN(smp_cpus - XLNX_ZYNQMP_NUM_APU_CPUS, XLNX_ZYNQMP_NUM_RPU_CPUS);
for (i = 0; i < XLNX_ZYNQMP_NUM_RPU_CPUS; i++) {
for (i = 0; i < num_rpus; i++) {
char *name;
object_initialize(&s->rpu_cpu[i], sizeof(s->rpu_cpu[i]),
@ -132,8 +133,9 @@ static void xlnx_zynqmp_init(Object *obj)
{
XlnxZynqMPState *s = XLNX_ZYNQMP(obj);
int i;
int num_apus = MIN(smp_cpus, XLNX_ZYNQMP_NUM_APU_CPUS);
for (i = 0; i < XLNX_ZYNQMP_NUM_APU_CPUS; i++) {
for (i = 0; i < num_apus; i++) {
object_initialize(&s->apu_cpu[i], sizeof(s->apu_cpu[i]),
"cortex-a53-" TYPE_ARM_CPU);
object_property_add_child(obj, "apu-cpu[*]", OBJECT(&s->apu_cpu[i]),
@ -182,6 +184,7 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
MemoryRegion *system_memory = get_system_memory();
uint8_t i;
uint64_t ram_size;
int num_apus = MIN(smp_cpus, XLNX_ZYNQMP_NUM_APU_CPUS);
const char *boot_cpu = s->boot_cpu ? s->boot_cpu : "apu-cpu[0]";
ram_addr_t ddr_low_size, ddr_high_size;
qemu_irq gic_spi[GIC_NUM_SPI_INTR];
@ -233,10 +236,10 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
qdev_prop_set_uint32(DEVICE(&s->gic), "num-irq", GIC_NUM_SPI_INTR + 32);
qdev_prop_set_uint32(DEVICE(&s->gic), "revision", 2);
qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", XLNX_ZYNQMP_NUM_APU_CPUS);
qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", num_apus);
/* Realize APUs before realizing the GIC. KVM requires this. */
for (i = 0; i < XLNX_ZYNQMP_NUM_APU_CPUS; i++) {
for (i = 0; i < num_apus; i++) {
char *name;
object_property_set_int(OBJECT(&s->apu_cpu[i]), QEMU_PSCI_CONDUIT_SMC,
@ -292,7 +295,7 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
}
}
for (i = 0; i < XLNX_ZYNQMP_NUM_APU_CPUS; i++) {
for (i = 0; i < num_apus; i++) {
qemu_irq irq;
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i,
@ -307,11 +310,14 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
}
if (s->has_rpu) {
xlnx_zynqmp_create_rpu(s, boot_cpu, &err);
if (err) {
error_propagate(errp, err);
return;
}
info_report("The 'has_rpu' property is no longer required, to use the "
"RPUs just use -smp 6.");
}
xlnx_zynqmp_create_rpu(s, boot_cpu, &err);
if (err) {
error_propagate(errp, err);
return;
}
if (!s->boot_cpu_ptr) {