Re: [Xen-devel] [PATCH 6/7] arm64: xen: Enable user access before a privcmd hvc call

2016-08-15 Thread Stefano Stabellini
On Mon, 15 Aug 2016, Julien Grall wrote: > Hi Catalin, > > I have CCed Stefano who is maintaining the Xen ARM code in Linux. > > On 12/08/2016 17:27, Catalin Marinas wrote: > > Privcmd calls are issued by the userspace. The kernel needs to enable > > access to TTBR0_EL1 as the hypervisor would is

Re: [Xen-devel] [PATCH 6/7] arm64: xen: Enable user access before a privcmd hvc call

2016-08-15 Thread Julien Grall
Hi Catalin, I have CCed Stefano who is maintaining the Xen ARM code in Linux. On 12/08/2016 17:27, Catalin Marinas wrote: Privcmd calls are issued by the userspace. The kernel needs to enable access to TTBR0_EL1 as the hypervisor would issue stage 1 translations to user memory via AT instructio