diff options
author | Andreas Färber <afaerber@suse.de> | 2012-12-23 00:39:34 +0100 |
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committer | Andreas Färber <afaerber@suse.de> | 2012-12-23 00:40:49 +0100 |
commit | 501a7ce7270955be151c442c27620fa7af2f3ce5 (patch) | |
tree | 0374e4d581a0246074d55712b81baf01f3c439b6 /include/sysemu/kvm.h | |
parent | 62e0c095450f6a7eb37914991f3f7966aa4da7a1 (diff) | |
parent | 36f25d2537c40c6c47f4abee5d31a24863d1adf7 (diff) |
Merge branch 'master' of git://git.qemu.org/qemu into qom-cpu
Adapt header include paths.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'include/sysemu/kvm.h')
-rw-r--r-- | include/sysemu/kvm.h | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h new file mode 100644 index 0000000000..3db19ffdac --- /dev/null +++ b/include/sysemu/kvm.h @@ -0,0 +1,280 @@ +/* + * QEMU KVM support + * + * Copyright IBM, Corp. 2008 + * + * Authors: + * Anthony Liguori <aliguori@us.ibm.com> + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#ifndef QEMU_KVM_H +#define QEMU_KVM_H + +#include <errno.h> +#include "config-host.h" +#include "qemu/queue.h" + +#ifdef CONFIG_KVM +#include <linux/kvm.h> +#include <linux/kvm_para.h> +#endif + +extern int kvm_allowed; +extern bool kvm_kernel_irqchip; +extern bool kvm_async_interrupts_allowed; +extern bool kvm_irqfds_allowed; +extern bool kvm_msi_via_irqfd_allowed; +extern bool kvm_gsi_routing_allowed; + +#if defined CONFIG_KVM || !defined NEED_CPU_H +#define kvm_enabled() (kvm_allowed) +/** + * kvm_irqchip_in_kernel: + * + * Returns: true if the user asked us to create an in-kernel + * irqchip via the "kernel_irqchip=on" machine option. + * What this actually means is architecture and machine model + * specific: on PC, for instance, it means that the LAPIC, + * IOAPIC and PIT are all in kernel. This function should never + * be used from generic target-independent code: use one of the + * following functions or some other specific check instead. + */ +#define kvm_irqchip_in_kernel() (kvm_kernel_irqchip) + +/** + * kvm_async_interrupts_enabled: + * + * Returns: true if we can deliver interrupts to KVM + * asynchronously (ie by ioctl from any thread at any time) + * rather than having to do interrupt delivery synchronously + * (where the vcpu must be stopped at a suitable point first). + */ +#define kvm_async_interrupts_enabled() (kvm_async_interrupts_allowed) + +/** + * kvm_irqfds_enabled: + * + * Returns: true if we can use irqfds to inject interrupts into + * a KVM CPU (ie the kernel supports irqfds and we are running + * with a configuration where it is meaningful to use them). + */ +#define kvm_irqfds_enabled() (kvm_irqfds_allowed) + +/** + * kvm_msi_via_irqfd_enabled: + * + * Returns: true if we can route a PCI MSI (Message Signaled Interrupt) + * to a KVM CPU via an irqfd. This requires that the kernel supports + * this and that we're running in a configuration that permits it. + */ +#define kvm_msi_via_irqfd_enabled() (kvm_msi_via_irqfd_allowed) + +/** + * kvm_gsi_routing_enabled: + * + * Returns: true if GSI routing is enabled (ie the kernel supports + * it and we're running in a configuration that permits it). + */ +#define kvm_gsi_routing_enabled() (kvm_gsi_routing_allowed) + +#else +#define kvm_enabled() (0) +#define kvm_irqchip_in_kernel() (false) +#define kvm_async_interrupts_enabled() (false) +#define kvm_irqfds_enabled() (false) +#define kvm_msi_via_irqfd_enabled() (false) +#define kvm_gsi_routing_allowed() (false) +#endif + +struct kvm_run; +struct kvm_lapic_state; + +typedef struct KVMCapabilityInfo { + const char *name; + int value; +} KVMCapabilityInfo; + +#define KVM_CAP_INFO(CAP) { "KVM_CAP_" stringify(CAP), KVM_CAP_##CAP } +#define KVM_CAP_LAST_INFO { NULL, 0 } + +struct KVMState; +typedef struct KVMState KVMState; +extern KVMState *kvm_state; + +/* 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_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); +int kvm_has_intx_set_mask(void); + +#ifdef NEED_CPU_H +int kvm_init_vcpu(CPUArchState *env); + +int kvm_cpu_exec(CPUArchState *env); + +#if !defined(CONFIG_USER_ONLY) +void *kvm_vmalloc(ram_addr_t size); +void *kvm_arch_vmalloc(ram_addr_t size); +void kvm_setup_guest_memory(void *start, size_t size); + +void kvm_flush_coalesced_mmio_buffer(void); +#endif + +int kvm_insert_breakpoint(CPUArchState *current_env, target_ulong addr, + target_ulong len, int type); +int kvm_remove_breakpoint(CPUArchState *current_env, target_ulong addr, + target_ulong len, int type); +void kvm_remove_all_breakpoints(CPUArchState *current_env); +int kvm_update_guest_debug(CPUArchState *env, unsigned long reinject_trap); +#ifndef _WIN32 +int kvm_set_signal_mask(CPUArchState *env, const sigset_t *sigset); +#endif + +int kvm_on_sigbus_vcpu(CPUArchState *env, int code, void *addr); +int kvm_on_sigbus(int code, void *addr); + +/* internal API */ + +int kvm_ioctl(KVMState *s, int type, ...); + +int kvm_vm_ioctl(KVMState *s, int type, ...); + +int kvm_vcpu_ioctl(CPUState *cpu, int type, ...); + +/* Arch specific hooks */ + +extern const KVMCapabilityInfo kvm_arch_required_capabilities[]; + +void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run); +void kvm_arch_post_run(CPUState *cpu, struct kvm_run *run); + +int kvm_arch_handle_exit(CPUState *cpu, struct kvm_run *run); + +int kvm_arch_process_async_events(CPUState *cpu); + +int kvm_arch_get_registers(CPUState *cpu); + +/* state subset only touched by the VCPU itself during runtime */ +#define KVM_PUT_RUNTIME_STATE 1 +/* state subset modified during VCPU reset */ +#define KVM_PUT_RESET_STATE 2 +/* full state set, modified during initialization or on vmload */ +#define KVM_PUT_FULL_STATE 3 + +int kvm_arch_put_registers(CPUState *cpu, int level); + +int kvm_arch_init(KVMState *s); + +int kvm_arch_init_vcpu(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); + +void kvm_arch_init_irq_routing(KVMState *s); + +int kvm_set_irq(KVMState *s, int irq, int level); +int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg); + +void kvm_irqchip_add_irq_route(KVMState *s, int gsi, int irqchip, int pin); + +void kvm_put_apic_state(DeviceState *d, struct kvm_lapic_state *kapic); +void kvm_get_apic_state(DeviceState *d, struct kvm_lapic_state *kapic); + +struct kvm_guest_debug; +struct kvm_debug_exit_arch; + +struct kvm_sw_breakpoint { + target_ulong pc; + target_ulong saved_insn; + int use_count; + QTAILQ_ENTRY(kvm_sw_breakpoint) entry; +}; + +QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint); + +struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *cpu, + target_ulong pc); + +int kvm_sw_breakpoints_active(CPUState *cpu); + +int kvm_arch_insert_sw_breakpoint(CPUState *current_cpu, + struct kvm_sw_breakpoint *bp); +int kvm_arch_remove_sw_breakpoint(CPUState *current_cpu, + struct kvm_sw_breakpoint *bp); +int kvm_arch_insert_hw_breakpoint(target_ulong addr, + target_ulong len, int type); +int kvm_arch_remove_hw_breakpoint(target_ulong addr, + target_ulong len, int type); +void kvm_arch_remove_all_hw_breakpoints(void); + +void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg); + +bool kvm_arch_stop_on_emulation_error(CPUState *cpu); + +int kvm_check_extension(KVMState *s, unsigned int extension); + +uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function, + uint32_t index, int reg); +void kvm_cpu_synchronize_state(CPUArchState *env); +void kvm_cpu_synchronize_post_reset(CPUArchState *env); +void kvm_cpu_synchronize_post_init(CPUArchState *env); + +/* generic hooks - to be moved/refactored once there are more users */ + +static inline void cpu_synchronize_state(CPUArchState *env) +{ + if (kvm_enabled()) { + kvm_cpu_synchronize_state(env); + } +} + +static inline void cpu_synchronize_post_reset(CPUArchState *env) +{ + if (kvm_enabled()) { + kvm_cpu_synchronize_post_reset(env); + } +} + +static inline void cpu_synchronize_post_init(CPUArchState *env) +{ + if (kvm_enabled()) { + kvm_cpu_synchronize_post_init(env); + } +} + + +#if !defined(CONFIG_USER_ONLY) +int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr, + hwaddr *phys_addr); +#endif + +#endif +int kvm_set_ioeventfd_mmio(int fd, uint32_t adr, uint32_t val, bool assign, + uint32_t size); + +int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign); + +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_irqfd_notifier(KVMState *s, EventNotifier *n, 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); +#endif |