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| author | Yifei Jiang <jiangyifei@huawei.com> | 2022-01-12 16:13:22 +0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2022-01-21 15:52:56 +1000 |
| commit | ad40be27084536408b47a9209181f776ec2c54a5 (patch) | |
| tree | c6107ad96cf9f20242e17b6668f99d1a7707f9f6 /hw/intc/sifive_plic.c | |
| parent | 9997cc1e19d1f909551783c280cfe441a0838943 (diff) | |
| download | qemu-ad40be27084536408b47a9209181f776ec2c54a5.zip qemu-ad40be27084536408b47a9209181f776ec2c54a5.tar.gz qemu-ad40be27084536408b47a9209181f776ec2c54a5.tar.bz2 | |
target/riscv: Support start kernel directly by KVM
Get kernel and fdt start address in virt.c, and pass them to KVM
when cpu reset. Add kvm_riscv.h to place riscv specific interface.
In addition, PLIC is created without M-mode PLIC contexts when KVM
is enabled.
Signed-off-by: Yifei Jiang <jiangyifei@huawei.com>
Signed-off-by: Mingwang Li <limingwang@huawei.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Message-id: 20220112081329.1835-7-jiangyifei@huawei.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'hw/intc/sifive_plic.c')
| -rw-r--r-- | hw/intc/sifive_plic.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/hw/intc/sifive_plic.c b/hw/intc/sifive_plic.c index 746c0f0..eebbcf3 100644 --- a/hw/intc/sifive_plic.c +++ b/hw/intc/sifive_plic.c @@ -30,6 +30,7 @@ #include "target/riscv/cpu.h" #include "migration/vmstate.h" #include "hw/irq.h" +#include "sysemu/kvm.h" static bool addr_between(uint32_t addr, uint32_t base, uint32_t num) { @@ -430,7 +431,8 @@ DeviceState *sifive_plic_create(hwaddr addr, char *hart_config, uint32_t context_stride, uint32_t aperture_size) { DeviceState *dev = qdev_new(TYPE_SIFIVE_PLIC); - int i; + int i, j = 0; + SiFivePLICState *plic; assert(enable_stride == (enable_stride & -enable_stride)); assert(context_stride == (context_stride & -context_stride)); @@ -448,13 +450,21 @@ DeviceState *sifive_plic_create(hwaddr addr, char *hart_config, sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, addr); + plic = SIFIVE_PLIC(dev); for (i = 0; i < num_harts; i++) { CPUState *cpu = qemu_get_cpu(hartid_base + i); - qdev_connect_gpio_out(dev, i, - qdev_get_gpio_in(DEVICE(cpu), IRQ_S_EXT)); - qdev_connect_gpio_out(dev, num_harts + i, - qdev_get_gpio_in(DEVICE(cpu), IRQ_M_EXT)); + if (plic->addr_config[j].mode == PLICMode_M) { + j++; + qdev_connect_gpio_out(dev, num_harts + i, + qdev_get_gpio_in(DEVICE(cpu), IRQ_M_EXT)); + } + + if (plic->addr_config[j].mode == PLICMode_S) { + j++; + qdev_connect_gpio_out(dev, i, + qdev_get_gpio_in(DEVICE(cpu), IRQ_S_EXT)); + } } return dev; |