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hw/intc: sifive_plic: Add a reset function

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Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20220105213937.1113508-2-alistair.francis@opensource.wdc.com>
This commit is contained in:
Alistair Francis 2022-01-06 07:39:30 +10:00
parent e6b0408a17
commit 83b92b8efc
1 changed files with 18 additions and 0 deletions
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18
hw/intc/sifive_plic.c
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@ -355,6 +355,23 @@ static const MemoryRegionOps sifive_plic_ops = {
}
};
static void sifive_plic_reset(DeviceState *dev)
{
SiFivePLICState *s = SIFIVE_PLIC(dev);
int i;
memset(s->source_priority, 0, sizeof(uint32_t) * s->num_sources);
memset(s->target_priority, 0, sizeof(uint32_t) * s->num_addrs);
memset(s->pending, 0, sizeof(uint32_t) * s->bitfield_words);
memset(s->claimed, 0, sizeof(uint32_t) * s->bitfield_words);
memset(s->enable, 0, sizeof(uint32_t) * s->num_enables);
for (i = 0; i < s->num_harts; i++) {
qemu_set_irq(s->m_external_irqs[i], 0);
qemu_set_irq(s->s_external_irqs[i], 0);
}
}
/*
* parse PLIC hart/mode address offset config
*
@ -501,6 +518,7 @@ static void sifive_plic_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->reset = sifive_plic_reset;
device_class_set_props(dc, sifive_plic_properties);
dc->realize = sifive_plic_realize;
dc->vmsd = &vmstate_sifive_plic;