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target/riscv: Implement function kvm_arch_init_vcpu

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Get isa info from kvm while kvm init.

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.patel@wdc.com>
Message-id: 20220112081329.1835-4-jiangyifei@huawei.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Yifei Jiang 2022-01-12 16:13:19 +08:00 committed by Alistair Francis
parent 91654e613b
commit 0a312b85cb
1 changed files with 33 additions and 1 deletions
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34
target/riscv/kvm.c
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@ -38,6 +38,24 @@
#include "qemu/log.h"
#include "hw/loader.h"
static uint64_t kvm_riscv_reg_id(CPURISCVState *env, uint64_t type,
uint64_t idx)
{
uint64_t id = KVM_REG_RISCV | type | idx;
switch (riscv_cpu_mxl(env)) {
case MXL_RV32:
id |= KVM_REG_SIZE_U32;
break;
case MXL_RV64:
id |= KVM_REG_SIZE_U64;
break;
default:
g_assert_not_reached();
}
return id;
}
const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
KVM_CAP_LAST_INFO
};
@ -79,7 +97,21 @@ void kvm_arch_init_irq_routing(KVMState *s)
int kvm_arch_init_vcpu(CPUState *cs)
{
return 0;
int ret = 0;
target_ulong isa;
RISCVCPU *cpu = RISCV_CPU(cs);
CPURISCVState *env = &cpu->env;
uint64_t id;
id = kvm_riscv_reg_id(env, KVM_REG_RISCV_CONFIG,
KVM_REG_RISCV_CONFIG_REG(isa));
ret = kvm_get_one_reg(cs, id, &isa);
if (ret) {
return ret;
}
env->misa_ext = isa;
return ret;
}
int kvm_arch_msi_data_to_gsi(uint32_t data)