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hv: enlarge vuart number from 2 to 4 for each vm 

Currently, there are 2 vuarts for each VM, vuart 0 is for console, vuart
1 is for communication.
As the requirement for communication between more VMs, add 2 additional
vuarts for each VM.

Tracked-On: #5138
Signed-off-by: Conghui Chen <conghui.chen@intel.com>
This commit is contained in:
Conghui Chen 2020-08-05 17:31:18 +00:00 committed by wenlingz
parent 70e70fa316
commit bbd91344d9
3 changed files with 12 additions and 3 deletions
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9
hypervisor/dm/vuart.c
View File

@ -515,7 +515,7 @@ static bool vuart_read(struct acrn_vcpu *vcpu, uint16_t offset_arg, __unused siz
}
/*
* @pre: vuart_idx = 0 or 1
* @pre: vuart_idx = 0, 1, 2 or 3
*/
static bool vuart_register_io_handler(struct acrn_vm *vm, uint16_t port_base, uint32_t vuart_idx)
{
@ -533,6 +533,12 @@ static bool vuart_register_io_handler(struct acrn_vm *vm, uint16_t port_base, ui
case 1U:
pio_idx = UART_PIO_IDX1;
break;
case 2U:
pio_idx = UART_PIO_IDX2;
break;
case 3U:
pio_idx = UART_PIO_IDX3;
break;
default:
printf("Not support vuart index %d, will not register \n", vuart_idx);
ret = false;
@ -638,6 +644,7 @@ void init_vuart(struct acrn_vm *vm, const struct vuart_config *vu_config)
/* This vuart is not exist */
if ((vu_config[i].type == VUART_LEGACY_PIO) &&
(vu_config[i].addr.port_base == INVALID_COM_BASE)) {
pr_info("vm %d vuart %d is invalid", vm->vm_id, i);
continue;
}
setup_vuart(vm, &vu_config[i], i);

4
hypervisor/include/arch/x86/guest/vmx_io.h
View File

@ -18,7 +18,9 @@
/* When MAX_VUART_NUM_PER_VM is larger than 2, UART_PIO_IDXn should also be added here */
#define UART_PIO_IDX0 (PCI_CFGDATA_PIO_IDX + 1U)
#define UART_PIO_IDX1 (UART_PIO_IDX0 + 1U)
#define PM1A_EVT_PIO_IDX (UART_PIO_IDX1 + 1U)
#define UART_PIO_IDX2 (UART_PIO_IDX1 + 1U)
#define UART_PIO_IDX3 (UART_PIO_IDX2 + 1U)
#define PM1A_EVT_PIO_IDX (UART_PIO_IDX3 + 1U)
#define PM1A_CNT_PIO_IDX (PM1A_EVT_PIO_IDX + 1U)
#define PM1B_EVT_PIO_IDX (PM1A_CNT_PIO_IDX + 1U)
#define PM1B_CNT_PIO_IDX (PM1B_EVT_PIO_IDX + 1U)

2
hypervisor/include/arch/x86/vm_config.h
View File

@ -21,7 +21,7 @@
#define AFFINITY_CPU(n) (1UL << (n))
#define MAX_VCPUS_PER_VM MAX_PCPU_NUM
#define MAX_VUART_NUM_PER_VM 2U
#define MAX_VUART_NUM_PER_VM 4U
#define MAX_VM_OS_NAME_LEN 32U
#define MAX_MOD_TAG_LEN 32U