Re: [Xen-devel] [PATCH v3 16/16] xen/arm: arm64: Document Cortex-A57 erratum 834220

2016-06-22 Thread Stefano Stabellini
On Wed, 22 Jun 2016, Julien Grall wrote: > Hi Stefano, > > On 22/06/16 11:08, Stefano Stabellini wrote: > > On Tue, 7 Jun 2016, Julien Grall wrote: > > > The ARM erratum applies to certain revisions of Cortex-A57. The > > > processor may report a Stage 2 translation fault as the result of > > > St

Re: [Xen-devel] [PATCH v3 16/16] xen/arm: arm64: Document Cortex-A57 erratum 834220

2016-06-22 Thread Julien Grall
Hi Stefano, On 22/06/16 11:08, Stefano Stabellini wrote: On Tue, 7 Jun 2016, Julien Grall wrote: The ARM erratum applies to certain revisions of Cortex-A57. The processor may report a Stage 2 translation fault as the result of Stage 1 fault for load crossing a page boundary when there is a perm

Re: [Xen-devel] [PATCH v3 16/16] xen/arm: arm64: Document Cortex-A57 erratum 834220

2016-06-22 Thread Stefano Stabellini
On Tue, 7 Jun 2016, Julien Grall wrote: > The ARM erratum applies to certain revisions of Cortex-A57. The > processor may report a Stage 2 translation fault as the result of > Stage 1 fault for load crossing a page boundary when there is a > permission fault or device memory fault at stage 1 and a

Re: [Xen-devel] [PATCH v3 16/16] xen/arm: arm64: Document Cortex-A57 erratum 834220

2016-06-14 Thread Julien Grall
Hello, On 07/06/16 17:06, Julien Grall wrote: The ARM erratum applies to certain revisions of Cortex-A57. The processor may report a Stage 2 translation fault as the result of Stage 1 fault for load crossing a page boundary when there is a permission fault or device memory fault at stage 1 and a

[Xen-devel] [PATCH v3 16/16] xen/arm: arm64: Document Cortex-A57 erratum 834220

2016-06-07 Thread Julien Grall
The ARM erratum applies to certain revisions of Cortex-A57. The processor may report a Stage 2 translation fault as the result of Stage 1 fault for load crossing a page boundary when there is a permission fault or device memory fault at stage 1 and a translation fault at Stage 2. So Xen needs to c