@@ -383,4 +383,25 @@ void kvm_init_irq_routing(KVMState *s);
* > 0: irq chip was created
*/
int kvm_arch_irqchip_create(KVMState *s);
+
+/**
+ * kvm_set_one_reg - set a register value in KVM via KVM_SET_ONE_REG ioctl
+ * @id: The register ID
+ * @addr: The pointer to a value must point to a variable of the correct
+ * type/size for the register being accessed.
+ *
+ * Returns: 0 on success, or a negative errno on failure.
+ */
+int kvm_set_one_reg(CPUState *cs, uint64_t id, void *addr);
+
+/**
+ * kvm_get_one_reg - get a register value from KVM via KVM_GET_ONE_REG ioctl
+ * @id: The register ID
+ * @addr: The pointer to a value must point to a variable of the correct
+ * type/size for the register being accessed.
+ *
+ * Returns: 0 on success, or a negative errno on failure.
+ */
+int kvm_get_one_reg(CPUState *cs, uint64_t id, void *addr);
+
#endif
@@ -2114,3 +2114,21 @@ int kvm_create_device(KVMState *s, uint64_t type, bool test)
return test ? 0 : create_dev.fd;
}
+
+int kvm_set_one_reg(CPUState *cs, uint64_t id, void *addr)
+{
+ struct kvm_one_reg reg = {
+ .id = id,
+ .addr = (uintptr_t)addr,
+ };
+ return kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®);
+}
+
+int kvm_get_one_reg(CPUState *cs, uint64_t id, void *addr)
+{
+ struct kvm_one_reg reg = {
+ .id = id,
+ .addr = (uintptr_t)addr,
+ };
+ return kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®);
+}
This adds QEMU wrappers for KVM_SET_ONE_REG/KVM_GET_ONE_REG ioctls. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> --- Changes: v3: * changed comments v2: * added Doc Comments * removed error_print --- include/sysemu/kvm.h | 21 +++++++++++++++++++++ kvm-all.c | 18 ++++++++++++++++++ 2 files changed, 39 insertions(+)