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smp: nmi ipi support

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Matheus
2024-05-26 20:51:54 -03:00
parent dd1719096a
commit 8d42b80855
5 changed files with 20 additions and 8 deletions
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kernel-src/arch/x86-64/smp.c
+14 -5
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@@ -5,6 +5,7 @@
#include <arch/gdt.h>
#include <arch/idt.h>
#include <kernel/cmdline.h>
#include <arch/smp.h>
static volatile struct limine_smp_request smprequest = {
.id = LIMINE_SMP_REQUEST
@@ -13,11 +14,19 @@ static volatile struct limine_smp_request smprequest = {
// set to 1 because of the bsp
size_t arch_smp_cpusawake = 1;
// for panic. if the nosmp argument is given to the kernel, this is what the APs will jump to
static void cpuwakeuphalt(struct limine_smp_info *info) {
asm("cli");
for (;;) CPU_HALT();
}
static void cpuwakeup(struct limine_smp_info *info) {
cpu_set((cpu_t *)info->extra_argument);
arch_gdt_reload();
arch_idt_reload();
interrupt_register(0xfd, (void *)cpuwakeuphalt, NULL, IPL_IGNORE);
dpc_init();
arch_mmu_apswitch();
vmm_apinit();
@@ -30,16 +39,16 @@ static void cpuwakeup(struct limine_smp_info *info) {
sched_apentry();
}
// if the nosmp argument is given to the kernel, this is what the APs will jump to
static void cpuwakeuphalt(struct limine_smp_info *info) {
for (;;) CPU_HALT();
void arch_smp_sendipi(cpu_t *targcpu, isr_t *isr, int target, bool nmi) {
arch_apic_sendipi(targcpu ? targcpu->id : 0, INTERRUPT_IDTOVECTOR(isr->id), target, nmi ? APIC_MODE_NMI : 0, 0);
}
void arch_smp_sendipi(cpu_t *targcpu, isr_t *isr, int target) {
arch_apic_sendipi(targcpu ? targcpu->id : 0, INTERRUPT_IDTOVECTOR(isr->id), target, 0, 1);
void arch_smp_haltallothers() {
arch_smp_sendipi(NULL, &_cpu()->isr[0xfd], ARCH_SMP_IPI_OTHERCPUS, true);
}
void arch_smp_wakeup() {
interrupt_register(0xfd, (void *)cpuwakeuphalt, NULL, IPL_IGNORE);
struct limine_smp_response *response = smprequest.response;
if (response == NULL) {
// TODO try to detect the other processors manually