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kernel: mmu: fix boot address translation macros

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The Z_BOOT_VIRT_TO_PHYS() and Z_BOOT_PHYS_TO_VIRT() address
translation macros are flipped in their calculations.
The calculation is supposed to be:

  virt = phys + ((KERNEL_VM_BASE + KERNEL_VM_OFFSET) -
                 SRAM_BASE_ADDRESS)

So fix the them.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2021-02-12 14:03:06 -08:00 committed by Anas Nashif
parent d21412e96d
commit ec21c0b92f
1 changed files with 2 additions and 2 deletions
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4
kernel/include/mmu.h
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@ -47,8 +47,8 @@
* been remapped or paged out. Never use this unless you know exactly what you
* are doing.
*/
#define Z_BOOT_VIRT_TO_PHYS(virt) ((uintptr_t)(((uint8_t *)virt) + Z_VM_OFFSET))
#define Z_BOOT_PHYS_TO_VIRT(phys) ((uint8_t *)(((uintptr_t)phys) - Z_VM_OFFSET))
#define Z_BOOT_VIRT_TO_PHYS(virt) ((uintptr_t)(((uint8_t *)virt) - Z_VM_OFFSET))
#define Z_BOOT_PHYS_TO_VIRT(phys) ((uint8_t *)(((uintptr_t)phys) + Z_VM_OFFSET))
#ifdef CONFIG_ARCH_MAPS_ALL_RAM
#define Z_FREE_VM_START Z_BOOT_PHYS_TO_VIRT(Z_PHYS_RAM_END)