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kernel - various changes

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+ vmm: higher half should not be identify-mapped
+ panic: now displays current process
+ kernel: fix physical addresses (ḑ̷̩̜̦̥̰͔̻͔̖͎̳̗̫̓̓͊́̒͜ơ̸͙͎̠͎̩̤̭̬̙͚̬̣͇̤̼̑̐̿̿͆͠͝ ̷̗̟̘͎̥̤̭̂͛͆́͂͝͠ͅN̴̨̛̥̩̺͚̺̠͙̼̙̯̱͚̫̊̐̅̀̌̏͆̋̕͜͝͠ͅö̵̪͚̞̞̜͎͉̦́́̍̀̃̋̇̄̓͊̎͝t̶̡͍̩̤̹̤̂̑̓͌͂̾̑̈́͒̾̾́͐͆͊͂ ̴̨̫̺̦̊̍̒͛͌̌͂͘̚̚͘͘͝I̶̥͚̯̖̙̩͂́͜d̸̢̡̗͉̠̹̒͠e̸̡̪̺͎͖͚̗̟̟̥͍͑̈̋̉̋̓̐̊̚͘͜n̸̡̍͐͗̈͌̀̓̃́́͠t̶̢͈͈̦̻̰͎̪̰̒̄͒̃̐͜ĩ̴͕̼̻͓͚͕̲̬̤͈̜̣̐̍́̾̀̏̏̑͒̚ͅf̷̡̨̼̻̠̠͔̪͍͛y̴͉͓̓͒̆̎̚ ̶̟͙͖̙̟͍̟͕̞̥̹͇̌̉́̑͗͋̀̕ͅͅM̷͙̬̲̓a̶̫̰̞̺̖̍̀p̶̡̨̡̗̖̹̩̫̯̞̬͋͂̏̍̾̽͜ͅ ̶̧̨̧̫͉̝̮̳͎͍̱̟̪̝̀̽͑̂̿̄̈̇̓͘Ḫ̶̨̨̗̣̪͓̺͙͈͙̀ḭ̶̧̡͇̹͙̩͍͎̮̤̦̜̻͎̞̔̐̇̉̓͒͛̅̿͊̍͆͘̕g̷͖͙͍͓̯̪̩̑̑͋̈́͌͐̊̀͝͠͝ĥ̴̢̡̫̪̟̞̭̟͕̖͎͊͑͛̆͝e̴̡̨̗̱̱͙͔̻̤͎͆̒̾̾̓̈͊̓ͅr̵̛͈̩͍̔̌̃̇͊̽̀̉̽̊͌̿́ ̷̨̡̛̩̹̹̇̇̈́̑̍̊͒̄́͛H̷̨̪̜̤͍̻͎̲̜͋́̆͋̂̚͘͘͜͠ą̷̠͓̫̲́́̽̉̒͌́̓ͅl̴̢̛͈̤̺̱̙̬̆̎̄̊̈́̐̾̏̿̕f̸̢̰͓̦̺̰̯͚̣̙͔̺̂͜͜)
This commit is contained in:
RaphProductions 2025-05-16 08:01:37 +02:00
parent a8e919b033
commit b2ec036055
32 changed files with 265 additions and 265 deletions
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53
kernel/src/arch/x86_64/smp.c
View file

@ -1,49 +1,52 @@
#include "arch//x86_64/smp.h"
#include "arch/x86_64/smp.h"
#include "lib/spinlock.h"
#include "sys/log.h"
#include "limine.h"
#include "sys/log.h"
#include <stdint.h>
__attribute__((
used,
section(".limine_requests"))) static volatile struct limine_mp_request
used, section(".limine_requests"))) static volatile struct limine_mp_request
smp_request = {.id = LIMINE_MP_REQUEST, .revision = 0};
uint32_t bootstrap_lapic_id = 0;
uint32_t smp_cpu_count = 0; // Number of processors
spinlock_t smp_lock = { 0 };
spinlock_t smp_lock = {0};
uint32_t ctr = 0;
void smp_entry(struct limine_mp_info* smp_info) {
//spinlock_acquire(&smp_lock);
void smp_entry(struct limine_mp_info *smp_info) {
// spinlock_acquire(&smp_lock);
log("smp - CPU %d started (LAPIC ID: %d)\n", smp_info->processor_id, smp_info->lapic_id);
__atomic_fetch_add(&ctr, 1, __ATOMIC_SEQ_CST);
log("smp - CPU %d started (LAPIC ID: %d)\n", smp_info->processor_id,
smp_info->lapic_id);
__atomic_fetch_add(&ctr, 1, __ATOMIC_SEQ_CST);
while (1)
;;
//spinlock_release(&smp_lock);
while (1)
;
;
// spinlock_release(&smp_lock);
}
void smp_init() {
bootstrap_lapic_id = smp_request.response->bsp_lapic_id;
smp_cpu_count = smp_request.response->cpu_count;
bootstrap_lapic_id = smp_request.response->bsp_lapic_id;
smp_cpu_count = smp_request.response->cpu_count;
log("smp - detected %d CPUs\n", smp_cpu_count);
log("smp - detected %d CPUs\n", smp_cpu_count);
for (uint64_t i = 0; i < smp_cpu_count; i++) {
if (smp_request.response->cpus[i]->lapic_id != bootstrap_lapic_id) {
uint32_t old_ctr = __atomic_load_n(&ctr, __ATOMIC_SEQ_CST);
for (uint64_t i = 0; i < smp_cpu_count; i++) {
if (smp_request.response->cpus[i]->lapic_id != bootstrap_lapic_id) {
uint32_t old_ctr = __atomic_load_n(&ctr, __ATOMIC_SEQ_CST);
__atomic_store_n(&smp_request.response->cpus[i]->goto_address, smp_entry, __ATOMIC_SEQ_CST);
__atomic_store_n(&smp_request.response->cpus[i]->goto_address, smp_entry,
__ATOMIC_SEQ_CST);
while (__atomic_load_n(&ctr, __ATOMIC_SEQ_CST) == old_ctr)
;
} else {
log("smp - CPU %d is the bootstrap processor (LAPIC ID: %d)\n", i, smp_request.response->cpus[i]->lapic_id);
}
while (__atomic_load_n(&ctr, __ATOMIC_SEQ_CST) == old_ctr)
;
} else {
log("smp - CPU %d is the bootstrap processor (LAPIC ID: %d)\n", i,
smp_request.response->cpus[i]->lapic_id);
}
}
log("smp - initialized\n");
log("smp - initialized\n");
}