On Thu, Sep 20, 2018 at 06:25:29PM +0100, Catalin Marinas wrote:
> On Wed, Jun 06, 2018 at 12:31:21PM +0530, Chintan Pandya wrote:
> > diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
> > index 8ae5d7a..65f8627 100644
> > --- a/arch/arm64/mm/mmu.c
> > +++ b/arch/arm64/mm/mmu.c
> > @@ -45,6 +4
Hi Chintan,
On Wed, Jun 06, 2018 at 12:31:21PM +0530, Chintan Pandya wrote:
> diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
> index 8ae5d7a..65f8627 100644
> --- a/arch/arm64/mm/mmu.c
> +++ b/arch/arm64/mm/mmu.c
> @@ -45,6 +45,7 @@
> #include
> #include
> #include
> +#include
>
>
On Wed, Jun 06, 2018 at 12:31:21PM +0530, Chintan Pandya wrote:
> arm64 requires break-before-make. Originally, before
> setting up new pmd/pud entry for huge mapping, in few
> cases, the modifying pmd/pud entry was still valid
> and pointing to next level page table as we only
> clear off leaf PTE
arm64 requires break-before-make. Originally, before
setting up new pmd/pud entry for huge mapping, in few
cases, the modifying pmd/pud entry was still valid
and pointing to next level page table as we only
clear off leaf PTE in unmap leg.
a) This was resulting into stale entry in TLBs (as few
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