2022-08-02 12:35:25

by Xianting Tian

[permalink] [raw]
Subject: [PATCH V5 3/6] riscv: Add modules to virtual kernel memory layout dump

Modules always live before the kernel, MODULES_END is fixed but
MODULES_VADDR isn't fixed, it depends on the kernel size.
Let's add it to virtual kernel memory layout dump.

As MODULES is only defined for CONFIG_64BIT, so we dump it when
CONFIG_64BIT=y.

eg,
MODULES_VADDR - MODULES_END
0xffffffff01133000 - 0xffffffff80000000

Reviewed-by: Guo Ren <[email protected]>
Reviewed-by: Heiko Stuebner <[email protected]>
Signed-off-by: Xianting Tian <[email protected]>
---
arch/riscv/mm/init.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index d466ec670e1f..2c4a64e97aec 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -135,6 +135,10 @@ static void __init print_vm_layout(void)
(unsigned long)VMEMMAP_END);
print_ml("vmalloc", (unsigned long)VMALLOC_START,
(unsigned long)VMALLOC_END);
+#ifdef CONFIG_64BIT
+ print_ml("modules", (unsigned long)MODULES_VADDR,
+ (unsigned long)MODULES_END);
+#endif
print_ml("lowmem", (unsigned long)PAGE_OFFSET,
(unsigned long)high_memory);
if (IS_ENABLED(CONFIG_64BIT)) {
--
2.17.1