diff options
| author | Yifei Jiang | 2022-01-12 09:13:19 +0100 |
|---|---|---|
| committer | Alistair Francis | 2022-01-21 06:52:56 +0100 |
| commit | 0a312b85cb433386804a2ca79f4a1f7ab75f64a7 (patch) | |
| tree | 85b43134ff2cdc87f853077de502e6c808c108f6 /target/riscv | |
| parent | target/riscv: Add target/riscv/kvm.c to place the public kvm interface (diff) | |
| download | qemu-0a312b85cb433386804a2ca79f4a1f7ab75f64a7.tar.gz qemu-0a312b85cb433386804a2ca79f4a1f7ab75f64a7.tar.xz qemu-0a312b85cb433386804a2ca79f4a1f7ab75f64a7.zip | |
target/riscv: Implement function kvm_arch_init_vcpu
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>
Diffstat (limited to 'target/riscv')
| -rw-r--r-- | target/riscv/kvm.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/target/riscv/kvm.c b/target/riscv/kvm.c index 687dd4b621..9e66b4a97f 100644 --- a/target/riscv/kvm.c +++ b/target/riscv/kvm.c @@ -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) |