Initial commit of d32e8d0b8d9e0ef7cf7ab2e74548982972789dfc from qemu-kvm

1 files changed, 237 insertions, 0 deletions

diff --git a/kvm.h b/kvm.h
new file mode 100644
index 0000000..f06676c
--- /dev/null
+++ b/kvm.h
@@ -0,0 +1,237 @@
+/*
+ * 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 NEED_CPU_H
+#include "qemu-kvm.h"
+#endif
+
+#ifdef CONFIG_KVM
+#include <linux/kvm.h>
+#endif
+
+extern int kvm_allowed;
+
+#if defined CONFIG_KVM || !defined NEED_CPU_H
+#define kvm_enabled() (kvm_allowed)
+#else
+#define kvm_enabled() (0)
+#endif
+
+#ifdef OBSOLETE_KVM_IMPL
+struct kvm_run;
+
+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 }
+
+/* external API */
+
+int kvm_init(void);
+#endif /* OBSOLETE_KVM_IMPL */
+
+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_many_ioeventfds(void);
+
+#ifdef NEED_CPU_H
+int kvm_init_vcpu(CPUState *env);
+
+int kvm_cpu_exec(CPUState *env);
+
+#if !defined(CONFIG_USER_ONLY)
+int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size);
+int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size);
+
+void kvm_cpu_register_phys_memory_client(void);
+
+void kvm_setup_guest_memory(void *start, size_t size);
+
+int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
+int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
+void kvm_flush_coalesced_mmio_buffer(void);
+#endif
+
+int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
+                          target_ulong len, int type);
+int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
+                          target_ulong len, int type);
+void kvm_remove_all_breakpoints(CPUState *current_env);
+int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
+#ifndef _WIN32
+int kvm_set_signal_mask(CPUState *env, const sigset_t *sigset);
+#endif
+
+int kvm_pit_in_kernel(void);
+
+/* internal API */
+
+struct KVMState;
+typedef struct KVMState KVMState;
+
+int kvm_ioctl(KVMState *s, int type, ...);
+
+int kvm_vm_ioctl(KVMState *s, int type, ...);
+
+int kvm_vcpu_ioctl(CPUState *env, int type, ...);
+
+/* Arch specific hooks */
+
+#ifdef OBSOLETE_KVM_IMPL
+extern const KVMCapabilityInfo kvm_arch_required_capabilities[];
+#endif
+
+int kvm_arch_post_run(CPUState *env, struct kvm_run *run);
+
+int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run);
+
+int kvm_arch_pre_run(CPUState *env, struct kvm_run *run);
+
+#ifdef OBSOLETE_KVM_IMPL
+int kvm_arch_process_irqchip_events(CPUState *env);
+#endif
+
+int kvm_arch_get_registers(CPUState *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(CPUState *env, int level);
+
+int kvm_arch_init(KVMState *s);
+
+int kvm_arch_init_vcpu(CPUState *env);
+
+void kvm_arch_reset_vcpu(CPUState *env);
+
+int kvm_on_sigbus_vcpu(CPUState *env, int code, void *addr);
+int kvm_on_sigbus(int code, void *addr);
+
+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);
+
+int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info);
+
+struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
+                                                 target_ulong pc);
+
+int kvm_sw_breakpoints_active(CPUState *env);
+
+int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
+                                  struct kvm_sw_breakpoint *bp);
+int kvm_arch_remove_sw_breakpoint(CPUState *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(CPUState *env, struct kvm_guest_debug *dbg);
+
+bool kvm_arch_stop_on_emulation_error(CPUState *env);
+
+int kvm_check_extension(KVMState *s, unsigned int extension);
+
+uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
+                                      uint32_t index, int reg);
+void kvm_cpu_synchronize_state(CPUState *env);
+void kvm_cpu_synchronize_post_reset(CPUState *env);
+void kvm_cpu_synchronize_post_init(CPUState *env);
+
+/* generic hooks - to be moved/refactored once there are more users */
+
+static inline void cpu_synchronize_state(CPUState *env)
+{
+    if (kvm_enabled()) {
+        kvm_cpu_synchronize_state(env);
+    }
+}
+
+static inline void cpu_synchronize_post_reset(CPUState *env)
+{
+    if (kvm_enabled()) {
+        kvm_cpu_synchronize_post_reset(env);
+    }
+}
+
+static inline void cpu_synchronize_post_init(CPUState *env)
+{
+    if (kvm_enabled()) {
+        kvm_cpu_synchronize_post_init(env);
+    }
+}
+
+#if !defined(CONFIG_USER_ONLY)
+int kvm_physical_memory_addr_from_ram(KVMState *s, ram_addr_t ram_addr,
+                                      target_phys_addr_t *phys_addr);
+#endif
+
+#endif
+int kvm_set_ioeventfd_mmio_long(int fd, uint32_t adr, uint32_t val, bool assign);
+
+#if defined(KVM_IRQFD) && defined(CONFIG_KVM)
+int kvm_set_irqfd(int gsi, int fd, bool assigned);
+#else
+static inline
+int kvm_set_irqfd(int gsi, int fd, bool assigned)
+{
+    return -ENOSYS;
+}
+#endif
+
+int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign);
+
+int kvm_has_gsi_routing(void);
+int kvm_get_irq_route_gsi(void);
+int kvm_add_msix(uint32_t gsi, uint32_t addr_lo,
+                 uint32_t addr_hi, uint32_t data);
+int kvm_del_msix(uint32_t gsi, uint32_t addr_lo,
+                 uint32_t addr_hi, uint32_t data);
+int kvm_update_msix(uint32_t old_gsi, uint32_t old_addr_lo,
+                    uint32_t old_addr_hi, uint32_t old_data,
+                    uint32_t new_gsi, uint32_t new_addr_lo,
+                    uint32_t new_addr_hi, uint32_t new_data);
+int kvm_commit_irq_routes(void);
+
+int kvm_irqchip_in_kernel(void);
+
+int kvm_set_irq(int irq, int level, int *status);
+
+#endif