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..131d2bdc15
--- /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(CPUArchState *env, int type, ...);
+
+/* Arch specific hooks */
+
+extern const KVMCapabilityInfo kvm_arch_required_capabilities[];
+
+void kvm_arch_pre_run(CPUArchState *env, struct kvm_run *run);
+void kvm_arch_post_run(CPUArchState *env, struct kvm_run *run);
+
+int kvm_arch_handle_exit(CPUArchState *env, struct kvm_run *run);
+
+int kvm_arch_process_async_events(CPUArchState *env);
+
+int kvm_arch_get_registers(CPUArchState *env);
+
+/* 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(CPUArchState *env, int level);
+
+int kvm_arch_init(KVMState *s);
+
+int kvm_arch_init_vcpu(CPUArchState *env);
+
+void kvm_arch_reset_vcpu(CPUArchState *env);
+
+int kvm_arch_on_sigbus_vcpu(CPUArchState *env, 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(CPUArchState *env,
+                                                 target_ulong pc);
+
+int kvm_sw_breakpoints_active(CPUArchState *env);
+
+int kvm_arch_insert_sw_breakpoint(CPUArchState *current_env,
+                                  struct kvm_sw_breakpoint *bp);
+int kvm_arch_remove_sw_breakpoint(CPUArchState *current_env,
+                                  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(CPUArchState *env, struct kvm_guest_debug *dbg);
+
+bool kvm_arch_stop_on_emulation_error(CPUArchState *env);
+
+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