acrn-hypervisor/hypervisor/dm/mmio_dev.c
Liang Yi 688a41c290 hv: mod: do not use explicit arch name when including headers
Instead of "#include <x86/foo.h>", use "#include <asm/foo.h>".

In other words, we are adopting the same practice in Linux kernel.

Tracked-On: #5920
Signed-off-by: Liang Yi <yi.liang@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
2021-05-08 11:15:46 +08:00

44 lines
1.1 KiB
C

/*
* Copyright (C) 2020 Intel Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <errno.h>
#include <util.h>
#include <acrn_hv_defs.h>
#include <asm/pgtable.h>
#include <asm/guest/vm.h>
#include <asm/guest/ept.h>
int32_t assign_mmio_dev(struct acrn_vm *vm, const struct acrn_mmiodev *mmiodev)
{
int32_t ret = -EINVAL;
if (mem_aligned_check(mmiodev->base_gpa, PAGE_SIZE) &&
mem_aligned_check(mmiodev->base_hpa, PAGE_SIZE) &&
mem_aligned_check(mmiodev->size, PAGE_SIZE)) {
ept_add_mr(vm, (uint64_t *)vm->arch_vm.nworld_eptp, mmiodev->base_hpa,
is_sos_vm(vm) ? mmiodev->base_hpa : mmiodev->base_gpa,
mmiodev->size, EPT_RWX | EPT_UNCACHED);
ret = 0;
}
return ret;
}
int32_t deassign_mmio_dev(struct acrn_vm *vm, const struct acrn_mmiodev *mmiodev)
{
int32_t ret = -EINVAL;
if (mem_aligned_check(mmiodev->base_gpa, PAGE_SIZE) &&
mem_aligned_check(mmiodev->base_hpa, PAGE_SIZE) &&
mem_aligned_check(mmiodev->size, PAGE_SIZE)) {
ept_del_mr(vm, (uint64_t *)vm->arch_vm.nworld_eptp,
is_sos_vm(vm) ? mmiodev->base_hpa : mmiodev->base_gpa, mmiodev->size);
ret = 0;
}
return ret;
}