1 files changed, 118 insertions, 0 deletions
diff --git a/sys/amd64/vmm/io/vlapic.h b/sys/amd64/vmm/io/vlapic.h
new file mode 100644
index 000000000000..569dce6b272f
--- /dev/null
+++ b/sys/amd64/vmm/io/vlapic.h
@@ -0,0 +1,118 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2011 NetApp, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _VLAPIC_H_
+#define	_VLAPIC_H_
+
+struct vm;
+struct vm_snapshot_meta;
+enum x2apic_state;
+
+int vlapic_write(struct vlapic *vlapic, int mmio_access, uint64_t offset,
+    uint64_t data, bool *retu);
+int vlapic_read(struct vlapic *vlapic, int mmio_access, uint64_t offset,
+    uint64_t *data, bool *retu);
+
+/*
+ * Returns 0 if there is no eligible vector that can be delivered to the
+ * guest at this time and non-zero otherwise.
+ *
+ * If an eligible vector number is found and 'vecptr' is not NULL then it will
+ * be stored in the location pointed to by 'vecptr'.
+ *
+ * Note that the vector does not automatically transition to the ISR as a
+ * result of calling this function.
+ */
+int vlapic_pending_intr(struct vlapic *vlapic, int *vecptr);
+
+/*
+ * Transition 'vector' from IRR to ISR. This function is called with the
+ * vector returned by 'vlapic_pending_intr()' when the guest is able to
+ * accept this interrupt (i.e. RFLAGS.IF = 1 and no conditions exist that
+ * block interrupt delivery).
+ */
+void vlapic_intr_accepted(struct vlapic *vlapic, int vector);
+
+/*
+ * Returns 1 if the vcpu needs to be notified of the interrupt and 0 otherwise.
+ */
+int vlapic_set_intr_ready(struct vlapic *vlapic, int vector, bool level);
+
+/*
+ * Post an interrupt to the vcpu running on 'hostcpu'. This will use a
+ * hardware assist if available (e.g. Posted Interrupt) or fall back to
+ * sending an 'ipinum' to interrupt the 'hostcpu'.
+ */
+void vlapic_post_intr(struct vlapic *vlapic, int hostcpu, int ipinum);
+
+void vlapic_fire_cmci(struct vlapic *vlapic);
+int vlapic_trigger_lvt(struct vlapic *vlapic, int vector);
+
+void vlapic_sync_tpr(struct vlapic *vlapic);
+
+uint64_t vlapic_get_apicbase(struct vlapic *vlapic);
+int vlapic_set_apicbase(struct vlapic *vlapic, uint64_t val);
+void vlapic_set_x2apic_state(struct vcpu *vcpu, enum x2apic_state s);
+bool vlapic_enabled(struct vlapic *vlapic);
+
+void vlapic_deliver_intr(struct vm *vm, bool level, uint32_t dest, bool phys,
+    int delmode, int vec);
+
+/* Reset the trigger-mode bits for all vectors to be edge-triggered */
+void vlapic_reset_tmr(struct vlapic *vlapic);
+
+/*
+ * Set the trigger-mode bit associated with 'vector' to level-triggered if
+ * the (dest,phys,delmode) tuple resolves to an interrupt being delivered to
+ * this 'vlapic'.
+ */
+void vlapic_set_tmr_level(struct vlapic *vlapic, uint32_t dest, bool phys,
+    int delmode, int vector);
+
+void vlapic_set_cr8(struct vlapic *vlapic, uint64_t val);
+uint64_t vlapic_get_cr8(struct vlapic *vlapic);
+
+/* APIC write handlers */
+void vlapic_id_write_handler(struct vlapic *vlapic);
+void vlapic_ldr_write_handler(struct vlapic *vlapic);
+void vlapic_dfr_write_handler(struct vlapic *vlapic);
+void vlapic_svr_write_handler(struct vlapic *vlapic);
+void vlapic_esr_write_handler(struct vlapic *vlapic);
+int vlapic_icrlo_write_handler(struct vlapic *vlapic, bool *retu);
+void vlapic_icrtmr_write_handler(struct vlapic *vlapic);
+void vlapic_dcr_write_handler(struct vlapic *vlapic);
+void vlapic_lvt_write_handler(struct vlapic *vlapic, uint32_t offset);
+void vlapic_self_ipi_handler(struct vlapic *vlapic, uint64_t val);
+
+#ifdef BHYVE_SNAPSHOT
+int vlapic_snapshot(struct vm *vm, struct vm_snapshot_meta *meta);
+#endif
+
+int vm_handle_ipi(struct vcpu *vcpu, struct vm_exit *vme, bool *retu);
+
+#endif	/* _VLAPIC_H_ */