diff options
Diffstat (limited to 'sys/amd64/include/vmm.h')
| -rw-r--r-- | sys/amd64/include/vmm.h | 40 |
1 files changed, 34 insertions, 6 deletions
diff --git a/sys/amd64/include/vmm.h b/sys/amd64/include/vmm.h index 9c05b89..6895e64 100644 --- a/sys/amd64/include/vmm.h +++ b/sys/amd64/include/vmm.h @@ -34,6 +34,7 @@ enum vm_suspend_how { VM_SUSPEND_RESET, VM_SUSPEND_POWEROFF, VM_SUSPEND_HALT, + VM_SUSPEND_TRIPLEFAULT, VM_SUSPEND_LAST }; @@ -88,6 +89,16 @@ enum x2apic_state { X2APIC_STATE_LAST }; +#define VM_INTINFO_VECTOR(info) ((info) & 0xff) +#define VM_INTINFO_DEL_ERRCODE 0x800 +#define VM_INTINFO_RSVD 0x7ffff000 +#define VM_INTINFO_VALID 0x80000000 +#define VM_INTINFO_TYPE 0x700 +#define VM_INTINFO_HWINTR (0 << 8) +#define VM_INTINFO_NMI (2 << 8) +#define VM_INTINFO_HWEXCEPTION (3 << 8) +#define VM_INTINFO_SWINTR (4 << 8) + #ifdef _KERNEL #define VM_MAX_NAMELEN 32 @@ -278,14 +289,31 @@ struct vatpit *vm_atpit(struct vm *vm); int vm_inject_exception(struct vm *vm, int vcpuid, struct vm_exception *vme); /* - * Returns 0 if there is no exception pending for this vcpu. Returns 1 if an - * exception is pending and also updates 'vme'. The pending exception is - * cleared when this function returns. + * This function is called after a VM-exit that occurred during exception or + * interrupt delivery through the IDT. The format of 'intinfo' is described + * in Figure 15-1, "EXITINTINFO for All Intercepts", APM, Vol 2. * - * This function should only be called in the context of the thread that is - * executing this vcpu. + * If a VM-exit handler completes the event delivery successfully then it + * should call vm_exit_intinfo() to extinguish the pending event. For e.g., + * if the task switch emulation is triggered via a task gate then it should + * call this function with 'intinfo=0' to indicate that the external event + * is not pending anymore. + * + * Return value is 0 on success and non-zero on failure. */ -int vm_exception_pending(struct vm *vm, int vcpuid, struct vm_exception *vme); +int vm_exit_intinfo(struct vm *vm, int vcpuid, uint64_t intinfo); + +/* + * This function is called before every VM-entry to retrieve a pending + * event that should be injected into the guest. This function combines + * nested events into a double or triple fault. + * + * Returns 0 if there are no events that need to be injected into the guest + * and non-zero otherwise. + */ +int vm_entry_intinfo(struct vm *vm, int vcpuid, uint64_t *info); + +int vm_get_intinfo(struct vm *vm, int vcpuid, uint64_t *info1, uint64_t *info2); void vm_inject_gp(struct vm *vm, int vcpuid); /* general protection fault */ void vm_inject_ud(struct vm *vm, int vcpuid); /* undefined instruction fault */ |
