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sys/arm64/vmm/vmm_instruction_emul.c
- This file was added.
/* | |||||
* Copyright (C) 2015 Mihai Carabas <mihai.carabas@gmail.com> | |||||
* 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 AUTHOR AND CONTRIBUTORS ``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 AUTHOR 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. | |||||
*/ | |||||
#ifdef _KERNEL | |||||
#include <sys/param.h> | |||||
#include <sys/pcpu.h> | |||||
#include <sys/systm.h> | |||||
#include <sys/proc.h> | |||||
#include <vm/vm.h> | |||||
#include <machine/machdep.h> | |||||
#include <machine/vmm.h> | |||||
#else | |||||
#include <sys/types.h> | |||||
#include <sys/errno.h> | |||||
#include <sys/_iovec.h> | |||||
#include <stdio.h> | |||||
#include <stdlib.h> | |||||
#include <machine/vmm.h> | |||||
#include <assert.h> | |||||
#include <vmmapi.h> | |||||
#endif | |||||
#include <machine/vmm_instruction_emul.h> | |||||
int | |||||
vmm_emulate_instruction(void *vm, int vcpuid, uint64_t gpa, struct vie *vie, | |||||
struct vm_guest_paging *paging, mem_region_read_t memread, | |||||
mem_region_write_t memwrite, void *memarg) | |||||
{ | |||||
uint64_t val; | |||||
int error; | |||||
if (vie->dir == VM_DIR_READ) { | |||||
error = memread(vm, vcpuid, gpa, &val, vie->access_size, memarg); | |||||
if (error) | |||||
goto out; | |||||
error = vm_set_register(vm, vcpuid, vie->reg, val); | |||||
} else { | |||||
error = vm_get_register(vm, vcpuid, vie->reg, &val); | |||||
if (error) | |||||
goto out; | |||||
error = memwrite(vm, vcpuid, gpa, val, vie->access_size, memarg); | |||||
} | |||||
out: | |||||
return (error); | |||||
} | |||||
int | |||||
vmm_emulate_register(void *vm, int vcpuid, struct vre *vre, reg_read_t regread, | |||||
reg_write_t regwrite, void *regarg) | |||||
{ | |||||
uint64_t val; | |||||
int error; | |||||
if (vre->dir == VM_DIR_READ) { | |||||
error = regread(vm, vcpuid, &val, regarg); | |||||
if (error) | |||||
goto out; | |||||
error = vm_set_register(vm, vcpuid, vre->reg, val); | |||||
} else { | |||||
error = vm_get_register(vm, vcpuid, vre->reg, &val); | |||||
if (error) | |||||
goto out; | |||||
error = regwrite(vm, vcpuid, val, regarg); | |||||
} | |||||
out: | |||||
return (error); | |||||
} |