linux-dev/arch/riscv/include/asm/ptdump.h, branch linus/masterLinux kernel development work - see feature brancheshttps://git.zx2c4.com/linux-dev/atom/arch/riscv/include/asm/ptdump.h?h=linus%2Fmaster2020-06-04T03:09:50Zriscv: support DEBUG_WX2020-06-04T03:09:50ZZong Lizong.li@sifive.com2020-06-03T23:03:55Zurn:sha1:b422d28b21773bbfc9e84dbb5579a8ce355279ca
Support DEBUG_WX to check whether there are mapping with write and execute
permission at the same time.
[akpm@linux-foundation.org: replace macros with C]
Signed-off-by: Zong Li <zong.li@sifive.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Link: http://lkml.kernel.org/r/282e266311bced080bc6f7c255b92f87c1eb65d6.1587455584.git.zong.li@sifive.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
riscv: Add support to dump the kernel page tables2020-03-26T16:29:49ZZong Lizong.li@sifive.com2020-03-12T02:58:35Zurn:sha1:59c4da8640ccf4721d54d36835706f3eefb521a4
In a similar manner to arm64, x86, powerpc, etc., it can traverse all
page tables, and dump the page table layout with the memory types and
permissions.
Add a debugfs file at /sys/kernel/debug/kernel_page_tables to export
the page table layout to userspace.
Signed-off-by: Zong Li <zong.li@sifive.com>
Tested-by: Alexandre Ghiti <alex@ghiti.fr>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>