Re: [RFC PATCH v1] iommu/io-pgtable-arm-v7s: Check for leaf entry right after finding it

On Tue, Feb 21, 2017 at 03:31:26PM +0200, Oleksandr Tyshchenko wrote: > On Tue, Feb 21, 2017 at 2:00 PM, Robin Murphy wrote: > > Would it not be more logical (and simpler) to just check that the thing > > we dereference is valid to dereference when we dereference it? i.e.: >

Re: [RFC PATCH v1] iommu/io-pgtable-arm-v7s: Check for leaf entry right after finding it

Hi, Robin. On Tue, Feb 21, 2017 at 2:00 PM, Robin Murphy wrote: > On 16/02/17 13:52, Oleksandr Tyshchenko wrote: >> From: Oleksandr Tyshchenko >> >> Do a check for already installed leaf entry at the current level before >> performing any

Re: [RFC PATCH v1] iommu/io-pgtable-arm-v7s: Check for leaf entry right after finding it

On 16/02/17 13:52, Oleksandr Tyshchenko wrote: > From: Oleksandr Tyshchenko > > Do a check for already installed leaf entry at the current level before > performing any actions when trying to map. > > This check is already present in arm_v7s_init_pte(), i.e.

Re: [RFC PATCH v1] iommu/io-pgtable-arm-v7s: Check for leaf entry right after finding it

Hi, Robin. It would be greatly appreciated if you could test this patch if nobody has objections to the patch itself. On Thu, Feb 16, 2017 at 3:52 PM, Oleksandr Tyshchenko wrote: > From: Oleksandr Tyshchenko > > Do a check for already

[RFC PATCH v1] iommu/io-pgtable-arm-v7s: Check for leaf entry right after finding it

From: Oleksandr Tyshchenko Do a check for already installed leaf entry at the current level before performing any actions when trying to map. This check is already present in arm_v7s_init_pte(), i.e. before installing new leaf entry at the current level if