Julien Grall 0a7ba29364 xen/arm: arm64: Add Cortex-A57 erratum 834220 workaround ...

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 check that Stage 1 translation does not generate a fault
before handling the Stage 2 fault. If it is a Stage 1 translation fault,
return to the guest to let the processor injecting the correct fault.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

2016-08-04 10:56:44 -07:00

..

device-tree

docs/arm64: clarify the documention for loading XSM support

2016-04-25 17:52:54 +01:00

booting.txt

xen: arm: doc: Add firmware requirements

2016-04-27 16:44:27 +01:00

early-printk.txt

xen/arm: drop hip04 support

2016-02-03 11:13:04 +00:00

passthrough.txt

docs/misc: arm: Add documentation about Device Tree passthrough

2015-05-21 15:12:09 +01:00

silicon-errata.txt

xen/arm: arm64: Add Cortex-A57 erratum 834220 workaround

2016-08-04 10:56:44 -07:00