[PATCH 4/4] KVM: arm64: selftest: vgic-v3: Add basic GICv3 sysreg userspace access test

[Marc Zyngier]

On Wed, 23 Jul 2025 06:00:40 +0100,
Itaru Kitayama <itaru.kitayama at linux.dev> wrote:
> 
> On Fri, Jul 18, 2025 at 12:11:54PM +0100, Marc Zyngier wrote:
> > We have a lot of more or less useful vgic tests, but none of them
> > tracks the availability of GICv3 system registers, which is a bit
> > annoying.
> > 
> > Add one such test, which covers both EL1 and EL2 registers.
> > 
> > Signed-off-by: Marc Zyngier <maz at kernel.org>
> 
> I've tested this selftest on the RevC FVP with kvm-arm.mode=nested.
> 
> Tested-by: Itaru Kitayama <itaru.kitayama at fujitsu.com>
> 
> Running GIC_v3 tests.
> __vm_create: mode='PA-bits:40,  VA-bits:48,  4K pages' type='0', pages='672'
> __vm_create: mode='PA-bits:40,  VA-bits:48,  4K pages' type='0', pages='657'
> __vm_create: mode='PA-bits:40,  VA-bits:48,  4K pages' type='0', pages='672'
> __vm_create: mode='PA-bits:40,  VA-bits:48,  4K pages' type='0', pages='672'
> __vm_create: mode='PA-bits:40,  VA-bits:48,  4K pages' type='0', pages='672'
> __vm_create: mode='PA-bits:40,  VA-bits:48,  4K pages' type='0', pages='672'
> __vm_create: mode='PA-bits:40,  VA-bits:48,  4K pages' type='0', pages='682'
> __vm_create: mode='PA-bits:40,  VA-bits:48,  4K pages' type='0', pages='682'
> __vm_create: mode='PA-bits:40,  VA-bits:48,  4K pages' type='0', pages='657'
> __vm_create: mode='PA-bits:40,  VA-bits:48,  4K pages' type='0', pages='672'
> __vm_create: mode='PA-bits:40,  VA-bits:48,  4K pages' type='0', pages='657'

I have no idea what you tested it on, because I get none of this
nonsense.

Where is it coming from?

	M.

-- 
Jazz isn't dead. It just smells funny.