From d758f8849851dd4e97a575e52c11ec748ab1bbec Mon Sep 17 00:00:00 2001 From: Daniel Henrique Barboza Date: Thu, 6 Jul 2023 07:17:25 -0300 Subject: [PATCH] target/riscv: read marchid/mimpid in kvm_riscv_init_machine_ids() Allow 'marchid' and 'mimpid' to also be initialized in kvm_riscv_init_machine_ids(). After this change, the handling of mvendorid/marchid/mimpid for the 'host' CPU type will be equal to what we already have for TCG named CPUs, i.e. the user is not able to set these values to a different val than the one that is already preset. Signed-off-by: Daniel Henrique Barboza Reviewed-by: Andrew Jones Acked-by: Alistair Francis Message-Id: <20230706101738.460804-8-dbarboza@ventanamicro.com> Signed-off-by: Alistair Francis --- target/riscv/kvm.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/target/riscv/kvm.c b/target/riscv/kvm.c index 7402bfbfc5..d8c1423b54 100644 --- a/target/riscv/kvm.c +++ b/target/riscv/kvm.c @@ -378,6 +378,22 @@ static void kvm_riscv_init_machine_ids(RISCVCPU *cpu, KVMScratchCPU *kvmcpu) if (ret != 0) { error_report("Unable to retrieve mvendorid from host, error %d", ret); } + + reg.id = kvm_riscv_reg_id(env, KVM_REG_RISCV_CONFIG, + KVM_REG_RISCV_CONFIG_REG(marchid)); + reg.addr = (uint64_t)&cpu->cfg.marchid; + ret = ioctl(kvmcpu->cpufd, KVM_GET_ONE_REG, ®); + if (ret != 0) { + error_report("Unable to retrieve marchid from host, error %d", ret); + } + + reg.id = kvm_riscv_reg_id(env, KVM_REG_RISCV_CONFIG, + KVM_REG_RISCV_CONFIG_REG(mimpid)); + reg.addr = (uint64_t)&cpu->cfg.mimpid; + ret = ioctl(kvmcpu->cpufd, KVM_GET_ONE_REG, ®); + if (ret != 0) { + error_report("Unable to retrieve mimpid from host, error %d", ret); + } } void kvm_riscv_init_user_properties(Object *cpu_obj)