Hi Stefano,
On 27/01/2017 19:27, Stefano Stabellini wrote:
On Thu, 26 Jan 2017, Tamas K Lengyel wrote:
On Thu, Jan 26, 2017 at 10:54 AM, Tamas K Lengyel
<tamas.leng...@zentific.com> wrote:
On Thu, Jan 26, 2017 at 4:30 AM, Julien Grall <julien.gr...@arm.com> wrote:
So according to the manual (C5.3.9-10) IALLU and IALLUIS are not
available from EL0. IVAU can be enabled to execute in EL0; however on
my 4.1 kernel it generates a permission fault. I'm also not sure if
IVAU would actually be a solution.
I think there is a Linux syscall available for this kind of things,
called cacheflush. See arch/arm/kernel/traps.c:arm_syscall.
The cacheflush system is only implement on ARM32. And even thought, we
have a domctl cacheflush for this purpose.
Cheers,
--
Julien Grall
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