Re: [kernel-hardening] Re: [PATCH 1/2] powerpc: mm: support ARCH_MMAP_RND_BITS

On 24 February 2017 6:32:13 pm AEDT, Bhupesh Sharma wrote: >Hi Michael, > >On Thu, Feb 16, 2017 at 10:19 AM, Bhupesh Sharma >wrote: >> Hi Michael, >> >> On Fri, Feb 10, 2017 at 4:41 PM, Bhupesh Sharma >wrote: >>> On Fri, Feb 10,

Re: [kernel-hardening] Re: [PATCH 1/2] powerpc: mm: support ARCH_MMAP_RND_BITS

Hi Michael, On Thu, Feb 16, 2017 at 10:19 AM, Bhupesh Sharma wrote: > Hi Michael, > > On Fri, Feb 10, 2017 at 4:41 PM, Bhupesh Sharma wrote: >> On Fri, Feb 10, 2017 at 4:31 PM, Michael Ellerman >> wrote: >>> Bhupesh Sharma

Re: [kernel-hardening] Re: [PATCH 1/2] powerpc: mm: support ARCH_MMAP_RND_BITS

Hi Michael, On Fri, Feb 10, 2017 at 4:41 PM, Bhupesh Sharma wrote: > On Fri, Feb 10, 2017 at 4:31 PM, Michael Ellerman wrote: >> Bhupesh Sharma writes: >> >>> HI Michael, >>> >>> On Thu, Feb 2, 2017 at 3:53 PM, Michael Ellerman

Re: [kernel-hardening] Re: [PATCH 1/2] powerpc: mm: support ARCH_MMAP_RND_BITS

On Fri, Feb 10, 2017 at 4:31 PM, Michael Ellerman wrote: > Bhupesh Sharma writes: > >> HI Michael, >> >> On Thu, Feb 2, 2017 at 3:53 PM, Michael Ellerman wrote: >>> Bhupesh Sharma writes: >>> powerpc:

Re: [kernel-hardening] Re: [PATCH 1/2] powerpc: mm: support ARCH_MMAP_RND_BITS

Bhupesh Sharma writes: > HI Michael, > > On Thu, Feb 2, 2017 at 3:53 PM, Michael Ellerman wrote: >> Bhupesh Sharma writes: >> >>> powerpc: arch_mmap_rnd() uses hard-coded values, (23-PAGE_SHIFT) for >>> 32-bit and (30-PAGE_SHIFT)

Re: [kernel-hardening] Re: [PATCH 1/2] powerpc: mm: support ARCH_MMAP_RND_BITS

Balbir Singh writes: > On Thu, Feb 02, 2017 at 09:23:33PM +1100, Michael Ellerman wrote: >> +config ARCH_MMAP_RND_BITS_MIN >> +# On 64-bit up to 1G of address space (2^30) >> +default 12 if 64BIT && PPC_256K_PAGES # 256K (2^18), = 30 - 18 = 12 >> +default 14