subject:"\[Xen\-devel\] \[PATCH v3 06\/18\] livepatch\: Initial ARM64 support."

Re: [Xen-devel] [PATCH v3 06/18] livepatch: Initial ARM64 support.

2016-09-12 Thread Jan Beulich

>>> On 11.09.16 at 22:35, wrote: > As compared to x86 the va of the hypervisor .text > is locked down - we cannot modify the running pagetables > to have the .ro flag unset. We borrow the same idea that > alternative patching has - which is to vmap the entire > .text

[Xen-devel] [PATCH v3 06/18] livepatch: Initial ARM64 support.

2016-09-11 Thread Konrad Rzeszutek Wilk

As compared to x86 the va of the hypervisor .text is locked down - we cannot modify the running pagetables to have the .ro flag unset. We borrow the same idea that alternative patching has - which is to vmap the entire .text region and use the alternative virtual address for patching. Since we