From: Yifei Jiang <jiangyifei@huawei.com>
To: <qemu-devel@nongnu.org>, <qemu-riscv@nongnu.org>
Cc: zhang.zhanghailiang@huawei.com, sagark@eecs.berkeley.edu,
kbastian@mail.uni-paderborn.de, victor.zhangxiaofeng@huawei.com,
Yifei Jiang <jiangyifei@huawei.com>,
Alistair.Francis@wdc.com, yinyipeng1@huawei.com,
palmer@dabbelt.com, wu.wubin@huawei.com, dengkai1@huawei.com
Subject: [PATCH 5/5] target/riscv: Add sifive_plic vmstate
Date: Tue, 29 Sep 2020 10:03:37 +0800 [thread overview]
Message-ID: <20200929020337.1559-6-jiangyifei@huawei.com> (raw)
In-Reply-To: <20200929020337.1559-1-jiangyifei@huawei.com>
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>
---
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
prev parent reply other threads:[~2020-09-29 2:09 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-29 2:03 [PATCH 0/5] Support RISC-V migration Yifei Jiang
2020-09-29 2:03 ` [PATCH 1/5] target/riscv: Add basic vmstate description of CPU Yifei Jiang
2020-10-01 17:23 ` Richard Henderson
2020-10-09 8:11 ` Jiangyifei
2020-09-29 2:03 ` [PATCH 2/5] target/riscv: Add PMP state description Yifei Jiang
2020-10-05 22:10 ` Alistair Francis
2020-10-09 8:33 ` Jiangyifei
2020-09-29 2:03 ` [PATCH 3/5] target/riscv: Add H extention " Yifei Jiang
2020-10-01 17:28 ` Richard Henderson
2020-10-05 22:09 ` Alistair Francis
2020-10-09 8:29 ` Jiangyifei
2020-09-29 2:03 ` [PATCH 4/5] target/riscv: Add V " Yifei Jiang
2020-10-01 17:30 ` Richard Henderson
2020-09-29 2:03 ` Yifei Jiang [this message]
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