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vmm: properly handle direct physical mapping unmap

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Matheus
2024-07-30 20:49:38 -03:00
parent 4a7ccc208c
commit d447751c30
2 changed files with 4 additions and 3 deletions
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kernel-src/include/kernel/vmm.h
+1 -1
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@@ -12,7 +12,7 @@
#define VMM_FLAGS_EXACT 16
#define VMM_FLAGS_SHARED 32
#define VMM_PERMANENT_FLAGS_MASK (VMM_FLAGS_FILE | VMM_FLAGS_SHARED)
#define VMM_PERMANENT_FLAGS_MASK (VMM_FLAGS_FILE | VMM_FLAGS_SHARED | VMM_FLAGS_PHYSICAL)
#define VMM_ACTION_READ 1
#define VMM_ACTION_WRITE 2
kernel-src/mm/vmm.c
+3 -2
View File
@@ -243,9 +243,10 @@ static void destroyrange(vmmrange_t *range, uintmax_t _offset, size_t size, int
pmm_release(physical);
}
} else {
// anonymous or private non character device mapping
// anonymous, physical or private non character device mapping
arch_mmu_unmap(_cpu()->vmmctx->pagetable, vaddr);
pmm_release(physical);
if ((range->flags & VMM_FLAGS_PHYSICAL) == 0)
pmm_release(physical);
}
}