Files
acrn-hypervisor/hypervisor/dm/mmio_dev.c
Yifan Liu 688741074f hv: vm: Move vm common parts under common/vm.h (data structure)
This commit moves struct acrn_vm under common header vm.h, and move some
x86-specific members of struct acrn_vm into arch_vm. This commit focuses
on struct cleanup only. API cleanup will be in future patch series.

The affected members are:
e820_entry_num
e820_entries
wire_mode
wbinvd_lock
vlapic_mode_lock
vcpuid_entry_nr
vcpuid_level
vcpuid_xlevel
vcpuid_entries
reset_control
pm
sworld_control
sworld_snapshot
intr_inject_delay_delta

Moved to common vm.h:
ept_lock -> rename to stg2pt_lock
ept_pgtable -> rename to stg2_pgtable
nworld_eptp -> rename to root_stg2ptp
emul_mmio_lock
nr_emul_mmio_regions
emul_mmio
emul_pio

To avoid circular dependency, some in-header helpers are also moved into
common vm.h.

Tracked-On: #8830
Signed-off-by: Yifan Liu <yifan1.liu@intel.com>
Reviewed-by: Fei Li <fei1.li@intel.com>
Acked-by: Wang Yu1 <yu1.wang@intel.com>
2025-10-30 13:30:32 +08:00

64 lines
1.6 KiB
C

/*
* Copyright (C) 2020-2022 Intel Corporation.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <errno.h>
#include <util.h>
#include <acrn_hv_defs.h>
#include <asm/pgtable.h>
#include <vm.h>
#include <asm/guest/ept.h>
#include <logmsg.h>
int32_t assign_mmio_dev(struct acrn_vm *vm, const struct acrn_mmiodev *mmiodev)
{
int32_t i, ret = 0;
const struct acrn_mmiores *res;
for (i = 0; i < MMIODEV_RES_NUM; i++) {
res = &mmiodev->res[i];
if (mem_aligned_check(res->user_vm_pa, PAGE_SIZE) &&
mem_aligned_check(res->host_pa, PAGE_SIZE) &&
mem_aligned_check(res->size, PAGE_SIZE)) {
ept_add_mr(vm, (uint64_t *)vm->root_stg2ptp, res->host_pa,
is_service_vm(vm) ? res->host_pa : res->user_vm_pa,
res->size, EPT_RWX | (res->mem_type & EPT_MT_MASK));
} else {
pr_err("%s invalid mmio res[%d] gpa:0x%lx hpa:0x%lx size:0x%lx",
__FUNCTION__, i, res->user_vm_pa, res->host_pa, res->size);
ret = -EINVAL;
break;
}
}
return ret;
}
int32_t deassign_mmio_dev(struct acrn_vm *vm, const struct acrn_mmiodev *mmiodev)
{
int32_t i, ret = 0;
uint64_t gpa;
const struct acrn_mmiores *res;
for (i = 0; i < MMIODEV_RES_NUM; i++) {
res = &mmiodev->res[i];
gpa = is_service_vm(vm) ? res->host_pa : res->user_vm_pa;
if (ept_is_valid_mr(vm, gpa, res->size)) {
if (mem_aligned_check(gpa, PAGE_SIZE) &&
mem_aligned_check(res->size, PAGE_SIZE)) {
ept_del_mr(vm, (uint64_t *)vm->root_stg2ptp, gpa, res->size);
} else {
pr_err("%s invalid mmio res[%d] gpa:0x%lx hpa:0x%lx size:0x%lx",
__FUNCTION__, i, res->user_vm_pa, res->host_pa, res->size);
ret = -EINVAL;
break;
}
}
}
return ret;
}