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small refactoring & fix

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Amoelle
2025-07-27 12:24:50 +03:00
parent f742d1fe9b
commit ee6c87c6d7
2 changed files with 24 additions and 24 deletions
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9
kernel.c
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@@ -198,7 +198,7 @@ struct process *create_process(uint32_t pc) {
// Find an unused proccess control structure
struct process *proc = NULL;
int i;
for (i = 0; i <= PROCS_MAX; i++) {
for (i = 0; i < PROCS_MAX; i++) {
if (procs[i].state == PROC_UNUSED) {
proc = &procs[i];
break;
@@ -262,11 +262,14 @@ void yield(void) {
return;
__asm__ __volatile__(
"sfence.vma\n"
"csrw satp, %[satp]\n"
"sfence.vma\n"
"csrw sscratch, %[sscratch]\n"
:
: [sscratch] "r" ((uint32_t) &next->stack[sizeof(next->stack)])
: [satp] "r" (SATP_SV32 | ((uint32_t) next->page_table / PAGE_SIZE)),
[sscratch] "r" ((uint32_t) &next->stack[sizeof(next->stack)])
);
// Context switch
struct process *prev = current_proc;
current_proc = next;