Re: [PATCH 28/39] x86/mm/pti: Keep permissions when cloning kernel text in pti_clone_kernel_text()

On Wed, Jul 11, 2018 at 4:29 AM, Joerg Roedel wrote: > From: Joerg Roedel > > Mapping the kernel text area to user-space makes only sense > if it has the same permissions as in the kernel page-table. > If permissions are different this will cause a TLB reload > when using the kernel page-table,

Re: [PATCH 28/39] x86/mm/pti: Keep permissions when cloning kernel text in pti_clone_kernel_text()

On Wed, Jul 11, 2018 at 4:29 AM, Joerg Roedel wrote: > From: Joerg Roedel > > Mapping the kernel text area to user-space makes only sense > if it has the same permissions as in the kernel page-table. > If permissions are different this will cause a TLB reload > when using the kernel page-table,