| Message ID | 20201023091225.224-7-jiangyifei@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Support RISC-V migration | expand |
On Fri, Oct 23, 2020 at 2:13 AM Yifei Jiang <jiangyifei@huawei.com> wrote: > > Add sifive_plic vmstate for supporting sifive_plic migration. > Current vmstate framework only supports one structure parameter > as num field to describe variable length arrays, so introduce > num_enables. > > Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> > Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Alistair > --- > hw/intc/sifive_plic.c | 26 +++++++++++++++++++++++++- > hw/intc/sifive_plic.h | 1 + > 2 files changed, 26 insertions(+), 1 deletion(-) > > diff --git a/hw/intc/sifive_plic.c b/hw/intc/sifive_plic.c > index f42fd695d8..97a1a27a9a 100644 > --- a/hw/intc/sifive_plic.c > +++ b/hw/intc/sifive_plic.c > @@ -30,6 +30,7 @@ > #include "hw/intc/sifive_plic.h" > #include "target/riscv/cpu.h" > #include "sysemu/sysemu.h" > +#include "migration/vmstate.h" > > #define RISCV_DEBUG_PLIC 0 > > @@ -448,11 +449,12 @@ static void sifive_plic_realize(DeviceState *dev, Error **errp) > TYPE_SIFIVE_PLIC, plic->aperture_size); > parse_hart_config(plic); > plic->bitfield_words = (plic->num_sources + 31) >> 5; > + plic->num_enables = plic->bitfield_words * plic->num_addrs; > plic->source_priority = g_new0(uint32_t, plic->num_sources); > plic->target_priority = g_new(uint32_t, plic->num_addrs); > plic->pending = g_new0(uint32_t, plic->bitfield_words); > plic->claimed = g_new0(uint32_t, plic->bitfield_words); > - plic->enable = g_new0(uint32_t, plic->bitfield_words * plic->num_addrs); > + plic->enable = g_new0(uint32_t, plic->num_enables); > sysbus_init_mmio(SYS_BUS_DEVICE(dev), &plic->mmio); > qdev_init_gpio_in(dev, sifive_plic_irq_request, plic->num_sources); > > @@ -472,12 +474,34 @@ static void sifive_plic_realize(DeviceState *dev, Error **errp) > msi_nonbroken = true; > } > > +static const VMStateDescription vmstate_sifive_plic = { > + .name = "riscv_sifive_plic", > + .version_id = 1, > + .minimum_version_id = 1, > + .fields = (VMStateField[]) { > + VMSTATE_VARRAY_UINT32(source_priority, SiFivePLICState, > + num_sources, 0, > + vmstate_info_uint32, uint32_t), > + VMSTATE_VARRAY_UINT32(target_priority, SiFivePLICState, > + num_addrs, 0, > + vmstate_info_uint32, uint32_t), > + VMSTATE_VARRAY_UINT32(pending, SiFivePLICState, bitfield_words, 0, > + vmstate_info_uint32, uint32_t), > + VMSTATE_VARRAY_UINT32(claimed, SiFivePLICState, bitfield_words, 0, > + vmstate_info_uint32, uint32_t), > + VMSTATE_VARRAY_UINT32(enable, SiFivePLICState, num_enables, 0, > + vmstate_info_uint32, uint32_t), > + VMSTATE_END_OF_LIST() > + } > +}; > + > static void sifive_plic_class_init(ObjectClass *klass, void *data) > { > DeviceClass *dc = DEVICE_CLASS(klass); > > device_class_set_props(dc, sifive_plic_properties); > dc->realize = sifive_plic_realize; > + dc->vmsd = &vmstate_sifive_plic; > } > > static const TypeInfo sifive_plic_info = { > diff --git a/hw/intc/sifive_plic.h b/hw/intc/sifive_plic.h > index b75b1f145d..1e451a270c 100644 > --- a/hw/intc/sifive_plic.h > +++ b/hw/intc/sifive_plic.h > @@ -52,6 +52,7 @@ struct SiFivePLICState { > uint32_t num_addrs; > uint32_t num_harts; > uint32_t bitfield_words; > + uint32_t num_enables; > PLICAddr *addr_config; > uint32_t *source_priority; > uint32_t *target_priority; > -- > 2.19.1 > >
diff --git a/hw/intc/sifive_plic.c b/hw/intc/sifive_plic.c index f42fd695d8..97a1a27a9a 100644 --- a/hw/intc/sifive_plic.c +++ b/hw/intc/sifive_plic.c @@ -30,6 +30,7 @@ #include "hw/intc/sifive_plic.h" #include "target/riscv/cpu.h" #include "sysemu/sysemu.h" +#include "migration/vmstate.h" #define RISCV_DEBUG_PLIC 0 @@ -448,11 +449,12 @@ static void sifive_plic_realize(DeviceState *dev, Error **errp) TYPE_SIFIVE_PLIC, plic->aperture_size); parse_hart_config(plic); plic->bitfield_words = (plic->num_sources + 31) >> 5; + plic->num_enables = plic->bitfield_words * plic->num_addrs; plic->source_priority = g_new0(uint32_t, plic->num_sources); plic->target_priority = g_new(uint32_t, plic->num_addrs); plic->pending = g_new0(uint32_t, plic->bitfield_words); plic->claimed = g_new0(uint32_t, plic->bitfield_words); - plic->enable = g_new0(uint32_t, plic->bitfield_words * plic->num_addrs); + plic->enable = g_new0(uint32_t, plic->num_enables); sysbus_init_mmio(SYS_BUS_DEVICE(dev), &plic->mmio); qdev_init_gpio_in(dev, sifive_plic_irq_request, plic->num_sources); @@ -472,12 +474,34 @@ static void sifive_plic_realize(DeviceState *dev, Error **errp) msi_nonbroken = true; } +static const VMStateDescription vmstate_sifive_plic = { + .name = "riscv_sifive_plic", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_VARRAY_UINT32(source_priority, SiFivePLICState, + num_sources, 0, + vmstate_info_uint32, uint32_t), + VMSTATE_VARRAY_UINT32(target_priority, SiFivePLICState, + num_addrs, 0, + vmstate_info_uint32, uint32_t), + VMSTATE_VARRAY_UINT32(pending, SiFivePLICState, bitfield_words, 0, + vmstate_info_uint32, uint32_t), + VMSTATE_VARRAY_UINT32(claimed, SiFivePLICState, bitfield_words, 0, + vmstate_info_uint32, uint32_t), + VMSTATE_VARRAY_UINT32(enable, SiFivePLICState, num_enables, 0, + vmstate_info_uint32, uint32_t), + VMSTATE_END_OF_LIST() + } +}; + static void sifive_plic_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); device_class_set_props(dc, sifive_plic_properties); dc->realize = sifive_plic_realize; + dc->vmsd = &vmstate_sifive_plic; } static const TypeInfo sifive_plic_info = { diff --git a/hw/intc/sifive_plic.h b/hw/intc/sifive_plic.h index b75b1f145d..1e451a270c 100644 --- a/hw/intc/sifive_plic.h +++ b/hw/intc/sifive_plic.h @@ -52,6 +52,7 @@ struct SiFivePLICState { uint32_t num_addrs; uint32_t num_harts; uint32_t bitfield_words; + uint32_t num_enables; PLICAddr *addr_config; uint32_t *source_priority; uint32_t *target_priority;