Commit 6be1ff43 authored by Guo Ren's avatar Guo Ren Committed by Palmer Dabbelt

riscv: pgtable: Fixup comment for KERN_VIRT_SIZE

KERN_VIRT_SIZE is 1/4 of the entries of the page global directory,
not half.

Fixes: f7ae0233 ("riscv: Move KASAN mapping next to the kernel mapping")
Signed-off-by: default avatarGuo Ren <guoren@linux.alibaba.com>
Signed-off-by: default avatarGuo Ren <guoren@kernel.org>
Cc: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Reviewed-by: default avatarAlexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20230110080419.931185-1-guoren@kernel.orgSigned-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent 61a9b712
...@@ -31,7 +31,7 @@ ...@@ -31,7 +31,7 @@
#define PTRS_PER_PTE (PAGE_SIZE / sizeof(pte_t)) #define PTRS_PER_PTE (PAGE_SIZE / sizeof(pte_t))
/* /*
* Half of the kernel address space (half of the entries of the page global * Half of the kernel address space (1/4 of the entries of the page global
* directory) is for the direct mapping. * directory) is for the direct mapping.
*/ */
#define KERN_VIRT_SIZE ((PTRS_PER_PGD / 2 * PGDIR_SIZE) / 2) #define KERN_VIRT_SIZE ((PTRS_PER_PGD / 2 * PGDIR_SIZE) / 2)
......
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