Re: [PATCH v2 0/3] ARM: Support KFENCE feature

[Kefeng Wang]

On 2021/11/4 20:12, Russell King (Oracle) wrote:
> The ARM tree is closed; we're in the mainline merge window. Please
> resend after -rc1 is released.

Got it, will do.

> On Wed, Nov 03, 2021 at 09:38:42PM +0800, Kefeng Wang wrote:
> > This patchset supports Kfence feature, tested the kfence_test on ARM QEMU
> > with or without ARM_LPAE and all passed.
> >
> > V2:
> > - drop patch4 in v1, which is used a new way to skip kfence test
> >    see commit c40c6e593bf9 ("kfence: test: fail fast if disabled at boot")
> > - fix some issue about NO MMU
> >    - drop useless set_memory_valid() under no mmu
> >    - fix implicit declaration of function ‘is_write_fault’ if no mmu
> > - make KFENCE depends on !XIP_KERNEL, no tested with xip
> >
> > v1:
> > https://lore.kernel.org/linux-arm-kernel/20210825092116.149975-1-wangkefeng.wang@xxxxxxxxxx/
> >
> > Kefeng Wang (3):
> >    ARM: mm: Provide set_memory_valid()
> >    ARM: mm: Provide is_write_fault()
> >    ARM: Support KFENCE for ARM
> >
> >   arch/arm/Kconfig                  |  1 +
> >   arch/arm/include/asm/kfence.h     | 53 +++++++++++++++++++++++++++++++
> >   arch/arm/include/asm/set_memory.h |  1 +
> >   arch/arm/mm/fault.c               | 16 ++++++++--
> >   arch/arm/mm/pageattr.c            | 42 ++++++++++++++++++------
> >   5 files changed, 100 insertions(+), 13 deletions(-)
> >   create mode 100644 arch/arm/include/asm/kfence.h
> >
> > --
> > 2.26.2