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config_tools: support vUART Timer pCPU configuration

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This patch is to allow user to pin vUART timer to specific pCPU via ACRN
config tool. User can configure by setting "vUART timer pCPU ID" under
Hypervisor->Advanced Parameters.

Tracked-On: #8648
Signed-off-by: Haiwei Li <haiwei.li@intel.com>
This commit is contained in:
Haiwei Li
2024-07-04 17:14:13 +08:00
committed by acrnsi-robot
parent f47b2b6860
commit 529ade37a4
7 changed files with 34 additions and 6 deletions
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3
hypervisor/arch/x86/init.c
View File

@@ -47,6 +47,9 @@ static void init_debug_post(uint16_t pcpu_id)
if (pcpu_id == BSP_CPU_ID) {
/* Initialize the shell */
shell_init();
}
if (pcpu_id == VUART_TIMER_CPU) {
console_setup_timer();
}

13
hypervisor/debug/console.c
View File

@@ -211,7 +211,7 @@ void console_setup_timer(void)
}
/* When lapic-pt is enabled for a vcpu working on the pcpu hosting
* console timer (currently BSP), we utilize vm-exits to drive the console.
* console timer, we utilize vm-exits to drive the console.
*
* Note that currently this approach will result in a laggy shell when
* the number of VM-exits/second is low (which is mostly true when lapic-pt is
@@ -222,8 +222,7 @@ void console_vmexit_callback(struct acrn_vcpu *vcpu)
static uint64_t prev_tsc = 0;
uint64_t tsc;
/* console_setup_timer is called on BSP only. */
if ((pcpuid_from_vcpu(vcpu) == BSP_CPU_ID) && (is_lapic_pt_enabled(vcpu))) {
if ((pcpuid_from_vcpu(vcpu) == VUART_TIMER_CPU) && (is_lapic_pt_enabled(vcpu))) {
tsc = cpu_ticks();
if (tsc - prev_tsc > (TICKS_PER_MS * CONSOLE_KICK_TIMER_TIMEOUT)) {
console_timer_callback(NULL);
@@ -234,10 +233,14 @@ void console_vmexit_callback(struct acrn_vcpu *vcpu)
void suspend_console(void)
{
del_timer(&console_timer);
if (VUART_TIMER_CPU == BSP_CPU_ID) {
del_timer(&console_timer);
}
}
void resume_console(void)
{
console_setup_timer();
if (VUART_TIMER_CPU == BSP_CPU_ID) {
console_setup_timer();
}
}

1
hypervisor/include/dm/vuart.h
View File

@@ -34,6 +34,7 @@
#define RX_BUF_SIZE CONFIG_VUART_RX_BUF_SIZE
#define TX_BUF_SIZE CONFIG_VUART_TX_BUF_SIZE
#define VUART_TIMER_CPU CONFIG_VUART_TIMER_PCPU
#define INVAILD_VUART_IDX 0xFFU
#define COM1_BASE 0x3F8U