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| author | Andrew Waterman <andrew@sifive.com> | 2021-02-10 17:03:03 -0800 |
|---|---|---|
| committer | Andrew Waterman <andrew@sifive.com> | 2021-03-25 22:21:06 -0700 |
| commit | 817e7d0dfea820a369a5b5c2d5d729942b7daf42 (patch) | |
| tree | a725081a6966d928cb9ddacdd2172251ef1691f9 /pk/mmap.h | |
| parent | b7f64fe5584094a6fe65d94d5e2382ff9289cbda (diff) | |
| download | pk-817e7d0dfea820a369a5b5c2d5d729942b7daf42.zip pk-817e7d0dfea820a369a5b5c2d5d729942b7daf42.tar.gz pk-817e7d0dfea820a369a5b5c2d5d729942b7daf42.tar.bz2 | |
pk: only access user memory through explicit accessors
Enforced with sstatus.SUM.
Diffstat (limited to 'pk/mmap.h')
| -rw-r--r-- | pk/mmap.h | 5 |
1 files changed, 2 insertions, 3 deletions
@@ -34,8 +34,7 @@ uintptr_t do_mremap(uintptr_t addr, size_t old_size, size_t new_size, int flags) uintptr_t do_mprotect(uintptr_t addr, size_t length, int prot); uintptr_t do_brk(uintptr_t addr); -#define va2pa(va) ({ uintptr_t __va = (uintptr_t)(va); \ - extern uintptr_t first_free_paddr; \ - __va >= MEM_START ? __va : __va + first_free_paddr; }) +#define kva2pa(va) ((uintptr_t)(va)) +#define is_uva(va) ((uintptr_t)(va) < MEM_START) #endif |