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HV: decouple legacy vuart interface from acrn_vuart layer

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support pci-vuart type, and refine:
1.Rename init_vuart() to init_legacy_vuarts(), only init PIO type.
2.Rename deinit_vuart() to deinit_legacy_vuarts(), only deinit PIO type.
3.Move io handler code out of setup_vuart(), into init_legacy_vuarts()
4.add init_pci_vuart(), deinit_pci_vuart, for one pci vuart vdev.

and some change from requirement:
1.Increase MAX_VUART_NUM_PER_VM to 8.

Tracked-On: #5394
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Wang, Yu1 <yu1.wang@intel.com>
This commit is contained in:
Tao Yuhong
2020-10-21 09:16:24 -04:00
committed by wenlingz
parent 6ed7b8767c
commit 4120bd391a
4 changed files with 66 additions and 34 deletions
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84
hypervisor/dm/vuart.c
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@@ -561,8 +561,7 @@ static bool vuart_register_io_handler(struct acrn_vm *vm, uint16_t port_base, ui
return ret;
}
static void setup_vuart(struct acrn_vm *vm,
const struct vuart_config *vu_config, uint16_t vuart_idx)
static void setup_vuart(struct acrn_vm *vm, uint16_t vuart_idx)
{
uint32_t divisor;
struct acrn_vuart *vu = &vm->vuart[vuart_idx];
@@ -578,16 +577,6 @@ static void setup_vuart(struct acrn_vm *vm,
vu->ier = 0U;
vuart_toggle_intr(vu);
vu->target_vu = NULL;
if (vu_config->type == VUART_LEGACY_PIO) {
vu->port_base = vu_config->addr.port_base;
vu->irq = vu_config->irq;
if (vuart_register_io_handler(vm, vu->port_base, vuart_idx) != 0U) {
vu->active = true;
}
} else {
/*TODO: add pci vuart support here*/
printf("PCI vuart is not support\n");
}
}
static struct acrn_vuart *find_active_target_vuart(const struct vuart_config *vu_config)
@@ -647,36 +636,73 @@ bool is_vuart_intx(const struct acrn_vm *vm, uint32_t intx_gsi)
return ret;
}
void init_vuart(struct acrn_vm *vm, const struct vuart_config *vu_config)
void init_legacy_vuarts(struct acrn_vm *vm, const struct vuart_config *vu_config)
{
uint8_t i;
struct acrn_vuart *vu;
for (i = 0U; i < MAX_VUART_NUM_PER_VM; i++) {
vm->vuart[i].active = false;
/* This vuart is not exist */
if ((vu_config[i].type == VUART_LEGACY_PIO) &&
(vu_config[i].addr.port_base == INVALID_COM_BASE)) {
continue;
}
setup_vuart(vm, &vu_config[i], i);
/*
* The first vuart is used for VM console.
* The rest of vuarts are used for connection.
*/
if (i != 0U) {
vuart_setup_connection(vm, &vu_config[i], i);
(vu_config[i].addr.port_base != INVALID_COM_BASE)) {
vu = &vm->vuart[i];
setup_vuart(vm, i);
vu->port_base = vu_config[i].addr.port_base;
vu->irq = vu_config[i].irq;
if (vuart_register_io_handler(vm, vu->port_base, i) != 0U) {
vu->active = true;
}
/*
* The first vuart is used for VM console.
* The rest of vuarts are used for connection.
*/
if (i != 0U) {
vuart_setup_connection(vm, &vu_config[i], i);
}
}
}
}
void deinit_vuart(struct acrn_vm *vm)
void deinit_legacy_vuarts(struct acrn_vm *vm)
{
uint8_t i;
for (i = 0U; i < MAX_VUART_NUM_PER_VM; i++) {
vm->vuart[i].active = false;
if (vm->vuart[i].target_vu != NULL) {
vuart_deinit_connection(&vm->vuart[i]);
if (vm->vuart[i].port_base != INVALID_COM_BASE) {
vm->vuart[i].active = false;
if (vm->vuart[i].target_vu != NULL) {
vuart_deinit_connection(&vm->vuart[i]);
}
}
}
}
void init_pci_vuart(struct pci_vdev *vdev)
{
struct acrn_vuart *vu = vdev->priv_data;
struct acrn_vm_pci_dev_config *pci_cfg = vdev->pci_dev_config;
uint16_t idx = pci_cfg->vuart_idx;
struct acrn_vm *vm = container_of(vdev->vpci, struct acrn_vm, vpci);
struct acrn_vm_config *vm_cfg = get_vm_config(vm->vm_id);
setup_vuart(vm, idx);
vu->vdev = vdev;
vm_cfg->vuart[idx].type = VUART_PCI;
vm_cfg->vuart[idx].t_vuart.vm_id = pci_cfg->t_vuart.vm_id;
vm_cfg->vuart[idx].t_vuart.vuart_id = pci_cfg->t_vuart.vuart_id;
vu->active = true;
if (pci_cfg->vuart_idx != 0U) {
vuart_setup_connection(vm, &vm_cfg->vuart[idx], idx);
}
}
void deinit_pci_vuart(struct pci_vdev *vdev)
{
struct acrn_vuart *vu = vdev->priv_data;
vu->active = false;
if (vu->target_vu != NULL) {
vuart_deinit_connection(vu);
}
}