Re: [PATCH v3 2/4] arm64: mte: Add asynchronous mode support

2021-01-16 Thread Vincenzo Frascino
On 1/15/21 3:13 PM, Mark Rutland wrote: > On Fri, Jan 15, 2021 at 12:00:41PM +, Vincenzo Frascino wrote: >> MTE provides an asynchronous mode for detecting tag exceptions. In >> particular instead of triggering a fault the arm64 core updates a >> register which is checked by the kernel after

Re: [PATCH v3 2/4] arm64: mte: Add asynchronous mode support

2021-01-15 Thread Mark Rutland
On Fri, Jan 15, 2021 at 12:00:41PM +, Vincenzo Frascino wrote: > MTE provides an asynchronous mode for detecting tag exceptions. In > particular instead of triggering a fault the arm64 core updates a > register which is checked by the kernel after the asynchronous tag > check fault has

[PATCH v3 2/4] arm64: mte: Add asynchronous mode support

2021-01-15 Thread Vincenzo Frascino
MTE provides an asynchronous mode for detecting tag exceptions. In particular instead of triggering a fault the arm64 core updates a register which is checked by the kernel after the asynchronous tag check fault has occurred. Add support for MTE asynchronous mode. The exception handling