diff options
Diffstat (limited to 'sys/amd64/vmm/vmm_lapic.c')
-rw-r--r-- | sys/amd64/vmm/vmm_lapic.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/sys/amd64/vmm/vmm_lapic.c b/sys/amd64/vmm/vmm_lapic.c new file mode 100644 index 0000000..8704fcf --- /dev/null +++ b/sys/amd64/vmm/vmm_lapic.c @@ -0,0 +1,121 @@ +/*- + * 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. + * + * $FreeBSD$ + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> + +#include <machine/vmm.h> +#include "vmm_ipi.h" +#include "vmm_lapic.h" +#include "vlapic.h" + +int +lapic_write(struct vm *vm, int cpu, u_int offset, uint64_t val) +{ + int handled; + + struct vlapic *vlapic; + + vlapic = vm_lapic(vm, cpu); + + if (vlapic_op_mem_write(vlapic, offset, DWORD, val) == 0) + handled = 1; + else + handled = 0; + + return (handled); +} + +int +lapic_read(struct vm *vm, int cpu, u_int offset, uint64_t *rv) +{ + int handled; + + struct vlapic *vlapic; + + vlapic = vm_lapic(vm, cpu); + + if (vlapic_op_mem_read(vlapic, offset, DWORD, rv) == 0) + handled = 1; + else + handled = 0; + + return (handled); +} + +int +lapic_pending_intr(struct vm *vm, int cpu) +{ + struct vlapic *vlapic; + + vlapic = vm_lapic(vm, cpu); + + return (vlapic_pending_intr(vlapic)); +} + +void +lapic_intr_accepted(struct vm *vm, int cpu, int vector) +{ + struct vlapic *vlapic; + + vlapic = vm_lapic(vm, cpu); + + vlapic_intr_accepted(vlapic, vector); +} + +int +lapic_set_intr(struct vm *vm, int cpu, int vector) +{ + struct vlapic *vlapic; + + if (cpu < 0 || cpu >= VM_MAXCPU) + return (EINVAL); + + if (vector < 32 || vector > 255) + return (EINVAL); + + vlapic = vm_lapic(vm, cpu); + vlapic_set_intr_ready(vlapic, vector); + + vm_interrupt_hostcpu(vm, cpu); + + return (0); +} + +void +lapic_timer_tick(struct vm *vm, int cpu) +{ + struct vlapic *vlapic; + + vlapic = vm_lapic(vm, cpu); + + vlapic_timer_tick(vlapic); +} |