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| author | Tianrui Zhao <zhaotianrui@loongson.cn> | 2024-01-05 15:58:02 +0800 |
|---|---|---|
| committer | Song Gao <gaosong@loongson.cn> | 2024-01-11 19:14:00 +0800 |
| commit | a05a950f2faf63ec14347153cded4f113af020f0 (patch) | |
| tree | ee779c29ad9c869662c76f9d02bdcfefd6564232 | |
| parent | d11681c94f4b52d1e095e60ca101df80578437e5 (diff) | |
| download | qemu-a05a950f2faf63ec14347153cded4f113af020f0.zip qemu-a05a950f2faf63ec14347153cded4f113af020f0.tar.gz qemu-a05a950f2faf63ec14347153cded4f113af020f0.tar.bz2 | |
target/loongarch: Implement kvm_arch_handle_exit
Implement kvm_arch_handle_exit for loongarch. In this
function, the KVM_EXIT_LOONGARCH_IOCSR is handled,
we read or write the iocsr address space by the addr,
length and is_write argument in kvm_run.
Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
Signed-off-by: xianglai li <lixianglai@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240105075804.1228596-8-zhaotianrui@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
| -rw-r--r-- | target/loongarch/kvm/kvm.c | 24 | ||||
| -rw-r--r-- | target/loongarch/trace-events | 1 |
2 files changed, 24 insertions, 1 deletions
diff --git a/target/loongarch/kvm/kvm.c b/target/loongarch/kvm/kvm.c index 85e7aeb..d2dab3f 100644 --- a/target/loongarch/kvm/kvm.c +++ b/target/loongarch/kvm/kvm.c @@ -723,7 +723,29 @@ bool kvm_arch_cpu_check_are_resettable(void) int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) { - return 0; + int ret = 0; + LoongArchCPU *cpu = LOONGARCH_CPU(cs); + CPULoongArchState *env = &cpu->env; + MemTxAttrs attrs = {}; + + attrs.requester_id = env_cpu(env)->cpu_index; + + trace_kvm_arch_handle_exit(run->exit_reason); + switch (run->exit_reason) { + case KVM_EXIT_LOONGARCH_IOCSR: + address_space_rw(&env->address_space_iocsr, + run->iocsr_io.phys_addr, + attrs, + run->iocsr_io.data, + run->iocsr_io.len, + run->iocsr_io.is_write); + break; + default: + ret = -1; + warn_report("KVM: unknown exit reason %d", run->exit_reason); + break; + } + return ret; } void kvm_arch_accel_class_init(ObjectClass *oc) diff --git a/target/loongarch/trace-events b/target/loongarch/trace-events index 937c3c7..0218398 100644 --- a/target/loongarch/trace-events +++ b/target/loongarch/trace-events @@ -11,3 +11,4 @@ kvm_failed_get_counter(const char *msg) "Failed to get counter from KVM: %s" kvm_failed_put_counter(const char *msg) "Failed to put counter into KVM: %s" kvm_failed_get_cpucfg(const char *msg) "Failed to get cpucfg from KVM: %s" kvm_failed_put_cpucfg(const char *msg) "Failed to put cpucfg into KVM: %s" +kvm_arch_handle_exit(int num) "kvm arch handle exit, the reason number: %d" |