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vuart: change irq from 4 to 6 

irq 4 is sharing with idma, after change vuart to level trigger, the idma
driver could handle this irq 4 and send out EOI, which cause the irq storm.

move vuart irq to a not used 6.

Tracked-On: https://github.com/projectacrn/acrn-hypervisor/issues/1476
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
This commit is contained in:
Jason Chen CJ 2018-10-15 16:34:49 +08:00 committed by Xie, Nanlin
parent 6485666a93
commit 1c7d2f653a
3 changed files with 4 additions and 3 deletions
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4
hypervisor/arch/x86/assign.c
View File

@ -45,8 +45,8 @@ is_entry_active(struct ptdev_remapping_info *entry)
static bool ptdev_hv_owned_intx(struct vm *vm, union source_id *virt_sid)
{
/* vm0 pin 4 (uart) is owned by hypervisor under debug version */
if (is_vm0(vm) && (virt_sid->intx_id.pin == 4U)) {
/* vm0 vuart pin is owned by hypervisor under debug version */
if (is_vm0(vm) && (virt_sid->intx_id.pin == COM1_IRQ)) {
return true;
} else {
return false;

1
hypervisor/debug/vuart.c
View File

@ -33,7 +33,6 @@
#include "uart16550.h"
#define COM1_BASE 0x3F8U
#define COM1_IRQ 4U
#ifndef CONFIG_PARTITION_MODE
static char vuart_rx_buf[RX_BUF_SIZE];

2
hypervisor/include/debug/vuart.h
View File

@ -69,11 +69,13 @@ struct acrn_vuart {
extern int8_t vuart_vmid;
#endif
#ifdef HV_DEBUG
#define COM1_IRQ 6U
void vuart_init(struct vm *vm);
struct acrn_vuart *vuart_console_active(void);
void vuart_console_tx_chars(struct acrn_vuart *vu);
void vuart_console_rx_chars(struct acrn_vuart *vu);
#else
#define COM1_IRQ 0xFFU
static inline void vuart_init(__unused struct vm *vm)
{
}