extern bool kvm_kernel_irqchip;
extern bool kvm_async_interrupts_allowed;
extern bool kvm_halt_in_kernel_allowed;
+extern bool kvm_eventfds_allowed;
extern bool kvm_irqfds_allowed;
extern bool kvm_msi_via_irqfd_allowed;
extern bool kvm_gsi_routing_allowed;
+extern bool kvm_gsi_direct_mapping;
extern bool kvm_readonly_mem_allowed;
#if defined CONFIG_KVM || !defined NEED_CPU_H
*/
#define kvm_halt_in_kernel() (kvm_halt_in_kernel_allowed)
+/**
+ * kvm_eventfds_enabled:
+ *
+ * Returns: true if we can use eventfds to receive notifications
+ * from a KVM CPU (ie the kernel supports eventds and we are running
+ * with a configuration where it is meaningful to use them).
+ */
+#define kvm_eventfds_enabled() (kvm_eventfds_allowed)
+
/**
* kvm_irqfds_enabled:
*
*/
#define kvm_gsi_routing_enabled() (kvm_gsi_routing_allowed)
+/**
+ * kvm_gsi_direct_mapping:
+ *
+ * Returns: true if GSI direct mapping is enabled.
+ */
+#define kvm_gsi_direct_mapping() (kvm_gsi_direct_mapping)
+
/**
* kvm_readonly_mem_enabled:
*
#define kvm_irqchip_in_kernel() (false)
#define kvm_async_interrupts_enabled() (false)
#define kvm_halt_in_kernel() (false)
+#define kvm_eventfds_enabled() (false)
#define kvm_irqfds_enabled() (false)
#define kvm_msi_via_irqfd_enabled() (false)
#define kvm_gsi_routing_allowed() (false)
+#define kvm_gsi_direct_mapping() (false)
#define kvm_readonly_mem_enabled() (false)
#endif
/* external API */
-int kvm_init(void);
-
int kvm_has_sync_mmu(void);
int kvm_has_vcpu_events(void);
int kvm_has_robust_singlestep(void);
int kvm_vcpu_ioctl(CPUState *cpu, int type, ...);
+/**
+ * kvm_device_ioctl - call an ioctl on a kvm device
+ * @fd: The KVM device file descriptor as returned from KVM_CREATE_DEVICE
+ * @type: The device-ctrl ioctl number
+ *
+ * Returns: -errno on error, nonnegative on success
+ */
+int kvm_device_ioctl(int fd, int type, ...);
+
+/**
+ * kvm_create_device - create a KVM device for the device control API
+ * @KVMState: The KVMState pointer
+ * @type: The KVM device type (see Documentation/virtual/kvm/devices in the
+ * kernel source)
+ * @test: If true, only test if device can be created, but don't actually
+ * create the device.
+ *
+ * Returns: -errno on error, nonnegative on success: @test ? 0 : device fd;
+ */
+int kvm_create_device(KVMState *s, uint64_t type, bool test);
+
+
/* Arch specific hooks */
extern const KVMCapabilityInfo kvm_arch_required_capabilities[];
/* Returns VCPU ID to be used on KVM_CREATE_VCPU ioctl() */
unsigned long kvm_arch_vcpu_id(CPUState *cpu);
-void kvm_arch_reset_vcpu(CPUState *cpu);
-
int kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr);
int kvm_arch_on_sigbus(int code, void *addr);
int kvm_check_extension(KVMState *s, unsigned int extension);
+int kvm_vm_check_extension(KVMState *s, unsigned int extension);
+
+#define kvm_vm_enable_cap(s, capability, cap_flags, ...) \
+ ({ \
+ struct kvm_enable_cap cap = { \
+ .cap = capability, \
+ .flags = cap_flags, \
+ }; \
+ uint64_t args_tmp[] = { __VA_ARGS__ }; \
+ int i; \
+ for (i = 0; i < (int)ARRAY_SIZE(args_tmp) && \
+ i < ARRAY_SIZE(cap.args); i++) { \
+ cap.args[i] = args_tmp[i]; \
+ } \
+ kvm_vm_ioctl(s, KVM_ENABLE_CAP, &cap); \
+ })
+
+#define kvm_vcpu_enable_cap(cpu, capability, cap_flags, ...) \
+ ({ \
+ struct kvm_enable_cap cap = { \
+ .cap = capability, \
+ .flags = cap_flags, \
+ }; \
+ uint64_t args_tmp[] = { __VA_ARGS__ }; \
+ int i; \
+ for (i = 0; i < (int)ARRAY_SIZE(args_tmp) && \
+ i < ARRAY_SIZE(cap.args); i++) { \
+ cap.args[i] = args_tmp[i]; \
+ } \
+ kvm_vcpu_ioctl(cpu, KVM_ENABLE_CAP, &cap); \
+ })
+
uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function,
uint32_t index, int reg);
-void kvm_cpu_synchronize_state(CPUState *cpu);
-/* generic hooks - to be moved/refactored once there are more users */
-
-static inline void cpu_synchronize_state(CPUState *cpu)
-{
- if (kvm_enabled()) {
- kvm_cpu_synchronize_state(cpu);
- }
-}
+void kvm_set_sigmask_len(KVMState *s, unsigned int sigmask_len);
#if !defined(CONFIG_USER_ONLY)
int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr,
#endif /* NEED_CPU_H */
+void kvm_cpu_synchronize_state(CPUState *cpu);
void kvm_cpu_synchronize_post_reset(CPUState *cpu);
void kvm_cpu_synchronize_post_init(CPUState *cpu);
+void kvm_cpu_clean_state(CPUState *cpu);
+
+/* generic hooks - to be moved/refactored once there are more users */
+
+static inline void cpu_synchronize_state(CPUState *cpu)
+{
+ if (kvm_enabled()) {
+ kvm_cpu_synchronize_state(cpu);
+ }
+}
static inline void cpu_synchronize_post_reset(CPUState *cpu)
{
}
}
+static inline void cpu_clean_state(CPUState *cpu)
+{
+ if (kvm_enabled()) {
+ kvm_cpu_clean_state(cpu);
+ }
+}
+
int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg);
int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg);
void kvm_irqchip_release_virq(KVMState *s, int virq);
+int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter);
+
int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n,
EventNotifier *rn, int virq);
int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq);
void kvm_pc_gsi_handler(void *opaque, int n, int level);
void kvm_pc_setup_irq_routing(bool pci_enabled);
void kvm_init_irq_routing(KVMState *s);
+
+/**
+ * kvm_arch_irqchip_create:
+ * @KVMState: The KVMState pointer
+ *
+ * Allow architectures to create an in-kernel irq chip themselves.
+ *
+ * Returns: < 0: error
+ * 0: irq chip was not created
+ * > 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
+ * @source: The pointer to the value to be set. It 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 *source);
+
+/**
+ * kvm_get_one_reg - get a register value from KVM via KVM_GET_ONE_REG ioctl
+ * @id: The register ID
+ * @target: The pointer where the value is to be stored. It 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 *target);
#endif
projects / qemu.git / blobdiff