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authorJosh Rahm <joshuarahm@gmail.com>2020-11-25 12:23:11 -0700
committerJosh Rahm <joshuarahm@gmail.com>2020-11-25 12:25:05 -0700
commitf06d29ca9da724866ae99ee2225d53f382d32bcd (patch)
treefbec7a13e7e05654898116037d7506637aa0ebff /include/kern/mpu/mpu_manager.h
parentd7d50cc81f72d1275140d7a15c52b6f9e272896f (diff)
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Add priv.h/c to allow switching to user mode. Change some things with the MPU in main() to actually work.
Diffstat (limited to 'include/kern/mpu/mpu_manager.h')
-rw-r--r--include/kern/mpu/mpu_manager.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/kern/mpu/mpu_manager.h b/include/kern/mpu/mpu_manager.h
index 5e0bc7b..7c47722 100644
--- a/include/kern/mpu/mpu_manager.h
+++ b/include/kern/mpu/mpu_manager.h
@@ -34,14 +34,14 @@ typedef enum {
REGION_SIZE_4Gb = 31,
} region_size_t;
-#define region_size_mask(region_size) ((1 << (region_size)) - 1)
+#define region_size_mask(region_size) ((1 << (region_size + 1)) - 1)
typedef enum {
/* Neither Privileged nor non-Privileged code cannnot access this region */
ACCESS_PERMS_NO_ACCESS = 0,
/* Only privileged users can access this memory. */
- ACCESS_PERMS_ONLY_PERMS = 1,
+ ACCESS_PERMS_ONLY_PRIV = 1,
/* Privileged code can access fully, but non-privilege only has Read-only
access.*/