luckfox-pico-sdk/sysdrv/source/kernel/arch/x86/xen/smp_hvm.c
luckfox-eng29 8f34c2760d project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches.
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between
the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door
for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more
usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp:
Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for
compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem.
sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device
tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately.
sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick
boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades.
sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for
fastboot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
2024-10-14 09:47:04 +08:00

93 lines
2.0 KiB
C

// SPDX-License-Identifier: GPL-2.0
#include <linux/thread_info.h>
#include <asm/smp.h>
#include <xen/events.h>
#include "xen-ops.h"
#include "smp.h"
static void __init xen_hvm_smp_prepare_boot_cpu(void)
{
BUG_ON(smp_processor_id() != 0);
native_smp_prepare_boot_cpu();
/*
* Setup vcpu_info for boot CPU. Secondary CPUs get their vcpu_info
* in xen_cpu_up_prepare_hvm().
*/
xen_vcpu_setup(0);
/*
* Called again in case the kernel boots on vcpu >= MAX_VIRT_CPUS.
* Refer to comments in xen_hvm_init_time_ops().
*/
xen_hvm_init_time_ops();
/*
* The alternative logic (which patches the unlock/lock) runs before
* the smp bootup up code is activated. Hence we need to set this up
* the core kernel is being patched. Otherwise we will have only
* modules patched but not core code.
*/
xen_init_spinlocks();
}
static void __init xen_hvm_smp_prepare_cpus(unsigned int max_cpus)
{
int cpu;
native_smp_prepare_cpus(max_cpus);
if (xen_have_vector_callback) {
WARN_ON(xen_smp_intr_init(0));
xen_init_lock_cpu(0);
}
for_each_possible_cpu(cpu) {
if (cpu == 0)
continue;
/* Set default vcpu_id to make sure that we don't use cpu-0's */
per_cpu(xen_vcpu_id, cpu) = XEN_VCPU_ID_INVALID;
}
}
#ifdef CONFIG_HOTPLUG_CPU
static void xen_hvm_cpu_die(unsigned int cpu)
{
if (common_cpu_die(cpu) == 0) {
if (xen_have_vector_callback) {
xen_smp_intr_free(cpu);
xen_uninit_lock_cpu(cpu);
xen_teardown_timer(cpu);
}
}
}
#else
static void xen_hvm_cpu_die(unsigned int cpu)
{
BUG();
}
#endif
void __init xen_hvm_smp_init(void)
{
smp_ops.smp_prepare_boot_cpu = xen_hvm_smp_prepare_boot_cpu;
smp_ops.smp_prepare_cpus = xen_hvm_smp_prepare_cpus;
smp_ops.smp_cpus_done = xen_smp_cpus_done;
smp_ops.cpu_die = xen_hvm_cpu_die;
if (!xen_have_vector_callback) {
#ifdef CONFIG_PARAVIRT_SPINLOCKS
nopvspin = true;
#endif
return;
}
smp_ops.smp_send_reschedule = xen_smp_send_reschedule;
smp_ops.send_call_func_ipi = xen_smp_send_call_function_ipi;
smp_ops.send_call_func_single_ipi = xen_smp_send_call_function_single_ipi;
}