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vmm: change how vmm_destroycontext is handled

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Matheus
2023-06-10 12:07:52 -03:00
parent 5ac1745b5f
commit f2b76caa84
4 changed files with 20 additions and 18 deletions
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kernel-src/mm/vmm.c
+6 -10
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@@ -471,15 +471,11 @@ vmmcontext_t *vmm_newcontext() {
return ctx;
}
void vmm_destroycontext(vmmcontext_t *context, int destroyrangeflags) {
vmmrange_t *range = context->space.ranges;
while (range) {
destroyrange(context, range, 0, range->size, destroyrangeflags);
vmmrange_t *next = range->next;
freerange(range);
range = next;
}
void vmm_destroycontext(vmmcontext_t *context) {
vmmcontext_t *oldctx = _cpu()->thread->vmmctx;
vmm_switchcontext(context);
vmm_unmap(context->space.start, context->space.end - context->space.start, 0);
vmm_switchcontext(oldctx);
arch_mmu_destroytable(context->pagetable);
slab_free(ctxcache, context);
}
@@ -531,7 +527,7 @@ vmmcontext_t *vmm_fork(vmmcontext_t *oldcontext) {
return newcontext;
error:
spinlock_release(&oldcontext->space.lock);
vmm_destroycontext(newcontext, VMM_DESTROY_FLAGS_NOSYNC);
vmm_destroycontext(newcontext);
return NULL;
}