diff options
Diffstat (limited to 'qemu/include/sysemu/kvm.h')
| -rw-r--r-- | qemu/include/sysemu/kvm.h | 93 |
1 files changed, 77 insertions, 16 deletions
diff --git a/qemu/include/sysemu/kvm.h b/qemu/include/sysemu/kvm.h index 983e99e1e..0e18f15c9 100644 --- a/qemu/include/sysemu/kvm.h +++ b/qemu/include/sysemu/kvm.h @@ -14,8 +14,6 @@ #ifndef QEMU_KVM_H #define QEMU_KVM_H -#include <errno.h> -#include "config-host.h" #include "qemu/queue.h" #include "qom/cpu.h" #include "exec/memattrs.h" @@ -43,6 +41,7 @@ extern bool kvm_allowed; extern bool kvm_kernel_irqchip; +extern bool kvm_split_irqchip; extern bool kvm_async_interrupts_allowed; extern bool kvm_halt_in_kernel_allowed; extern bool kvm_eventfds_allowed; @@ -52,6 +51,8 @@ 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; +extern bool kvm_direct_msi_allowed; +extern bool kvm_ioeventfd_any_length_allowed; #if defined CONFIG_KVM || !defined NEED_CPU_H #define kvm_enabled() (kvm_allowed) @@ -69,6 +70,16 @@ extern bool kvm_readonly_mem_allowed; #define kvm_irqchip_in_kernel() (kvm_kernel_irqchip) /** + * kvm_irqchip_is_split: + * + * Returns: true if the user asked us to split the irqchip + * implementation between user and kernel space. The details are + * architecture and machine specific. On PC, it means that the PIC, + * IOAPIC, and PIT are in user space while the LAPIC is in the kernel. + */ +#define kvm_irqchip_is_split() (kvm_split_irqchip) + +/** * kvm_async_interrupts_enabled: * * Returns: true if we can deliver interrupts to KVM @@ -145,9 +156,23 @@ extern bool kvm_readonly_mem_allowed; */ #define kvm_readonly_mem_enabled() (kvm_readonly_mem_allowed) +/** + * kvm_direct_msi_enabled: + * + * Returns: true if KVM allows direct MSI injection. + */ +#define kvm_direct_msi_enabled() (kvm_direct_msi_allowed) + +/** + * kvm_ioeventfd_any_length_enabled: + * Returns: true if KVM allows any length io eventfd. + */ +#define kvm_ioeventfd_any_length_enabled() (kvm_ioeventfd_any_length_allowed) + #else #define kvm_enabled() (0) #define kvm_irqchip_in_kernel() (false) +#define kvm_irqchip_is_split() (false) #define kvm_async_interrupts_enabled() (false) #define kvm_halt_in_kernel() (false) #define kvm_eventfds_enabled() (false) @@ -157,6 +182,8 @@ extern bool kvm_readonly_mem_allowed; #define kvm_gsi_routing_allowed() (false) #define kvm_gsi_direct_mapping() (false) #define kvm_readonly_mem_enabled() (false) +#define kvm_direct_msi_enabled() (false) +#define kvm_ioeventfd_any_length_enabled() (false) #endif struct kvm_run; @@ -182,8 +209,6 @@ int kvm_has_sync_mmu(void); int kvm_has_vcpu_events(void); int kvm_has_robust_singlestep(void); int kvm_has_debugregs(void); -int kvm_has_xsave(void); -int kvm_has_xcrs(void); int kvm_has_pit_state2(void); int kvm_has_many_ioeventfds(void); int kvm_has_gsi_routing(void); @@ -210,6 +235,10 @@ int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset); int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr); int kvm_on_sigbus(int code, void *addr); +/* interface with exec.c */ + +void phys_mem_set_alloc(void *(*alloc)(size_t, uint64_t *align)); + /* internal API */ int kvm_ioctl(KVMState *s, int type, ...); @@ -240,6 +269,32 @@ int kvm_device_ioctl(int fd, int type, ...); int kvm_vm_check_attr(KVMState *s, uint32_t group, uint64_t attr); /** + * kvm_device_check_attr - check for existence of a specific device attribute + * @fd: The device file descriptor + * @group: the group + * @attr: the attribute of that group to query for + * + * Returns: 1 if the attribute exists + * 0 if the attribute either does not exist or if the vm device + * interface is unavailable + */ +int kvm_device_check_attr(int fd, uint32_t group, uint64_t attr); + +/** + * kvm_device_access - set or get value of a specific vm attribute + * @fd: The device file descriptor + * @group: the group + * @attr: the attribute of that group to set or get + * @val: pointer to a storage area for the value + * @write: true for set and false for get operation + * + * This function is not allowed to fail. Use kvm_device_check_attr() + * in order to check for the availability of optional attributes. + */ +void kvm_device_access(int fd, int group, uint64_t attr, + void *val, bool write); + +/** * 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 @@ -251,6 +306,15 @@ int kvm_vm_check_attr(KVMState *s, uint32_t group, uint64_t attr); */ int kvm_create_device(KVMState *s, uint64_t type, bool test); +/** + * kvm_device_supported - probe whether KVM supports specific device + * + * @vmfd: The fd handler for VM + * @type: type of device + * + * @return: true if supported, otherwise false. + */ +bool kvm_device_supported(int vmfd, uint64_t type); /* Arch specific hooks */ @@ -261,6 +325,8 @@ MemTxAttrs kvm_arch_post_run(CPUState *cpu, struct kvm_run *run); int kvm_arch_handle_exit(CPUState *cpu, struct kvm_run *run); +int kvm_arch_handle_ioapic_eoi(CPUState *cpu, struct kvm_run *run); + int kvm_arch_process_async_events(CPUState *cpu); int kvm_arch_get_registers(CPUState *cpu); @@ -287,7 +353,7 @@ int kvm_arch_on_sigbus(int code, void *addr); void kvm_arch_init_irq_routing(KVMState *s); int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, - uint64_t address, uint32_t data); + uint64_t address, uint32_t data, PCIDevice *dev); int kvm_arch_msi_data_to_gsi(uint32_t data); @@ -380,7 +446,6 @@ int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr, 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 */ @@ -405,18 +470,13 @@ static inline void cpu_synchronize_post_init(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); +int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg, PCIDevice *dev); +int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg, + PCIDevice *dev); void kvm_irqchip_release_virq(KVMState *s, int virq); int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter); +int kvm_irqchip_add_hv_sint_route(KVMState *s, uint32_t vcpu, uint32_t sint); int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n, EventNotifier *rn, int virq); @@ -434,6 +494,7 @@ void kvm_init_irq_routing(KVMState *s); /** * kvm_arch_irqchip_create: * @KVMState: The KVMState pointer + * @MachineState: The MachineState pointer * * Allow architectures to create an in-kernel irq chip themselves. * @@ -441,7 +502,7 @@ void kvm_init_irq_routing(KVMState *s); * 0: irq chip was not created * > 0: irq chip was created */ -int kvm_arch_irqchip_create(KVMState *s); +int kvm_arch_irqchip_create(MachineState *ms, KVMState *s); /** * kvm_set_one_reg - set a register value in KVM via KVM_SET_ONE_REG ioctl |