Put GPR CSR and FP registers to kvm by KVM_SET_ONE_REG ioctl
Signed-off-by: Yifei Jiang <jiangyifei(a)huawei.com>
Signed-off-by: Yipeng Yin <yinyipeng1(a)huawei.com>
---
target/riscv/kvm.c | 142 ++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 141 insertions(+), 1 deletion(-)
diff --git a/target/riscv/kvm.c b/target/riscv/kvm.c
index e91f505607..7afb4263e9 100644
--- a/target/riscv/kvm.c
+++ b/target/riscv/kvm.c
@@ -85,6 +85,31 @@ static int kvm_riscv_get_regs_core(CPUState *cs)
return ret;
}
+static int kvm_riscv_put_regs_core(CPUState *cs)
+{
+ int ret = 0;
+ int i;
+ target_ulong reg;
+ CPURISCVState *env = &RISCV_CPU(cs)->env;
+
+ reg = env->pc;
+ ret = kvm_set_one_reg(cs, RISCV_CORE_REG(regs.pc), ®);
+ if (ret) {
+ return ret;
+ }
+
+ for (i = 1; i < 32; i++) {
+ __u64 id = kvm_riscv_reg_id(KVM_REG_RISCV_CORE, i);
+ reg = env->gpr[i];
+ ret = kvm_set_one_reg(cs, id, ®);
+ if (ret) {
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
static int kvm_riscv_get_regs_csr(CPUState *cs)
{
int ret = 0;
@@ -148,6 +173,70 @@ static int kvm_riscv_get_regs_csr(CPUState *cs)
return ret;
}
+static int kvm_riscv_put_regs_csr(CPUState *cs)
+{
+ int ret = 0;
+ target_ulong reg;
+ CPURISCVState *env = &RISCV_CPU(cs)->env;
+
+ reg = env->mstatus;
+ ret = kvm_set_one_reg(cs, RISCV_CSR_REG(sstatus), ®);
+ if (ret) {
+ return ret;
+ }
+
+ reg = env->mie;
+ ret = kvm_set_one_reg(cs, RISCV_CSR_REG(sie), ®);
+ if (ret) {
+ return ret;
+ }
+
+ reg = env->stvec;
+ ret = kvm_set_one_reg(cs, RISCV_CSR_REG(stvec), ®);
+ if (ret) {
+ return ret;
+ }
+
+ reg = env->sscratch;
+ ret = kvm_set_one_reg(cs, RISCV_CSR_REG(sscratch), ®);
+ if (ret) {
+ return ret;
+ }
+
+ reg = env->sepc;
+ ret = kvm_set_one_reg(cs, RISCV_CSR_REG(sepc), ®);
+ if (ret) {
+ return ret;
+ }
+
+ reg = env->scause;
+ ret = kvm_set_one_reg(cs, RISCV_CSR_REG(scause), ®);
+ if (ret) {
+ return ret;
+ }
+
+ reg = env->sbadaddr;
+ ret = kvm_set_one_reg(cs, RISCV_CSR_REG(stval), ®);
+ if (ret) {
+ return ret;
+ }
+
+ reg = env->mip;
+ ret = kvm_set_one_reg(cs, RISCV_CSR_REG(sip), ®);
+ if (ret) {
+ return ret;
+ }
+
+ reg = env->satp;
+ ret = kvm_set_one_reg(cs, RISCV_CSR_REG(satp), ®);
+ if (ret) {
+ return ret;
+ }
+
+ return ret;
+}
+
+
static int kvm_riscv_get_regs_fp(CPUState *cs)
{
int ret = 0;
@@ -181,6 +270,40 @@ static int kvm_riscv_get_regs_fp(CPUState *cs)
return ret;
}
+static int kvm_riscv_put_regs_fp(CPUState *cs)
+{
+ int ret = 0;
+ int i;
+ CPURISCVState *env = &RISCV_CPU(cs)->env;
+
+ if (riscv_has_ext(env, RVD)) {
+ uint64_t reg;
+ for (i = 0; i < 32; i++) {
+ reg = env->fpr[i];
+ ret = kvm_set_one_reg(cs, RISCV_FP_D_REG(i), ®);
+ if (ret) {
+ return ret;
+ }
+ }
+ return ret;
+ }
+
+ if (riscv_has_ext(env, RVF)) {
+ uint32_t reg;
+ for (i = 0; i < 32; i++) {
+ reg = env->fpr[i];
+ ret = kvm_set_one_reg(cs, RISCV_FP_F_REG(i), ®);
+ if (ret) {
+ return ret;
+ }
+ }
+ return ret;
+ }
+
+ return ret;
+}
+
+
const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
KVM_CAP_LAST_INFO
};
@@ -209,7 +332,24 @@ int kvm_arch_get_registers(CPUState *cs)
int kvm_arch_put_registers(CPUState *cs, int level)
{
- return 0;
+ int ret = 0;
+
+ ret = kvm_riscv_put_regs_core(cs);
+ if (ret) {
+ return ret;
+ }
+
+ ret = kvm_riscv_put_regs_csr(cs);
+ if (ret) {
+ return ret;
+ }
+
+ ret = kvm_riscv_put_regs_fp(cs);
+ if (ret) {
+ return ret;
+ }
+
+ return ret;
}
int kvm_arch_release_virq_post(int virq)
--
2.19.1