Re: [PATCH v4 21/21] arm64: cpufeatures: Allow disabling of Pointer Auth from the command-line

2021-01-26 Thread Srinivas Ramana
Hi Marc, On 1/23/2021 6:28 AM, Catalin Marinas wrote: On Mon, Jan 18, 2021 at 09:45:33AM +, Marc Zyngier wrote: In order to be able to disable Pointer Authentication at runtime, whether it is for testing purposes, or to work around HW issues, let's add support for overriding the

Re: [PATCH v4 21/21] arm64: cpufeatures: Allow disabling of Pointer Auth from the command-line

2021-01-23 Thread Catalin Marinas
On Mon, Jan 18, 2021 at 09:45:33AM +, Marc Zyngier wrote: > In order to be able to disable Pointer Authentication at runtime, > whether it is for testing purposes, or to work around HW issues, > let's add support for overriding the ID_AA64ISAR1_EL1.{GPI,GPA,API,APA} > fields. > > This is

[PATCH v4 21/21] arm64: cpufeatures: Allow disabling of Pointer Auth from the command-line

2021-01-18 Thread Marc Zyngier
In order to be able to disable Pointer Authentication at runtime, whether it is for testing purposes, or to work around HW issues, let's add support for overriding the ID_AA64ISAR1_EL1.{GPI,GPA,API,APA} fields. This is further mapped on the arm64.nopauth command-line alias. Signed-off-by: Marc