Re: [PATCH v5 4/5] arm64: kgdb: Round up cpus using IPI as NMI

2020-10-20 Thread Sumit Garg
On Mon, 19 Oct 2020 at 17:45, Marc Zyngier wrote: > > On 2020-10-14 12:12, Sumit Garg wrote: > > arm64 platforms with GICv3 or later supports pseudo NMIs which can be > > leveraged to round up CPUs which are stuck in hard lockup state with > > interrupts disabled that wouldn't be possible with a n

Re: [PATCH v5 4/5] arm64: kgdb: Round up cpus using IPI as NMI

2020-10-19 Thread Marc Zyngier
On 2020-10-14 12:12, Sumit Garg wrote: arm64 platforms with GICv3 or later supports pseudo NMIs which can be leveraged to round up CPUs which are stuck in hard lockup state with interrupts disabled that wouldn't be possible with a normal IPI. So instead switch to round up CPUs using IPI turned a

[PATCH v5 4/5] arm64: kgdb: Round up cpus using IPI as NMI

2020-10-14 Thread Sumit Garg
arm64 platforms with GICv3 or later supports pseudo NMIs which can be leveraged to round up CPUs which are stuck in hard lockup state with interrupts disabled that wouldn't be possible with a normal IPI. So instead switch to round up CPUs using IPI turned as NMI. And in case a particular arm64 pla