On Fri, 2019-12-06 at 10:47 +1100, Michael Ellerman wrote:
> Michael Ellerman writes:
> > Russell Currey writes:
> > > With CONFIG_STRICT_KERNEL_RWX=y and CONFIG_KPROBES=y, there will
> > > be one
> > > W+X page at boot by default. This can be tested with
> > > CONFIG_PPC_PTDUMP=y and
Michael Ellerman writes:
> Russell Currey writes:
>> With CONFIG_STRICT_KERNEL_RWX=y and CONFIG_KPROBES=y, there will be one
>> W+X page at boot by default. This can be tested with
>> CONFIG_PPC_PTDUMP=y and CONFIG_PPC_DEBUG_WX=y set, and checking the
>> kernel log during boot.
>>
>> powerpc
Russell Currey writes:
> With CONFIG_STRICT_KERNEL_RWX=y and CONFIG_KPROBES=y, there will be one
> W+X page at boot by default. This can be tested with
> CONFIG_PPC_PTDUMP=y and CONFIG_PPC_DEBUG_WX=y set, and checking the
> kernel log during boot.
>
> powerpc doesn't implement its own alloc()
Russell Currey writes:
> With CONFIG_STRICT_KERNEL_RWX=y and CONFIG_KPROBES=y, there will be one
> W+X page at boot by default. This can be tested with
> CONFIG_PPC_PTDUMP=y and CONFIG_PPC_DEBUG_WX=y set, and checking the
> kernel log during boot.
>
> powerpc doesn't implement its own alloc()
With CONFIG_STRICT_KERNEL_RWX=y and CONFIG_KPROBES=y, there will be one
W+X page at boot by default. This can be tested with
CONFIG_PPC_PTDUMP=y and CONFIG_PPC_DEBUG_WX=y set, and checking the
kernel log during boot.
powerpc doesn't implement its own alloc() for kprobes like other
architectures
