Re: [PATCH 07/11] arm64: add basic pointer authentication support

On Fri, Aug 11, 2017 at 08:46:28AM +0100, Yao Qi wrote: > Hi Mark, > > On 19/07/17 17:01, Mark Rutland wrote: > >+#define HWCAP_APIA (1 << 16) > > Can you rename it to HWCAP_ARM64_APIA or HWCAP_ARM_APIA? When we > use it in user space, at least in GDB, we usually do this, > > #ifndef

Re: [PATCH 07/11] arm64: add basic pointer authentication support

Hi Mark, On 19/07/17 17:01, Mark Rutland wrote: +#define HWCAP_APIA (1 << 16) Can you rename it to HWCAP_ARM64_APIA or HWCAP_ARM_APIA? When we use it in user space, at least in GDB, we usually do this, #ifndef HWCAP_APIA #define HWCAP_APIA (1 << 16) #endif However, the code use th

Re: [PATCH 07/11] arm64: add basic pointer authentication support

On Wed, Jul 19, 2017 at 05:01:28PM +0100, Mark Rutland wrote: > This patch adds basic support for pointer authentication, allowing > userspace to make use of APIAKey. The kernel maintains an APIAKey value > for each process (shared by all threads within), which is initialised to > a random value at