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From: Itaru Kitayama In-Reply-To: <87qzy7tja1.wl-maz@kernel.org> Date: Wed, 23 Jul 2025 17:46:14 +0900 Cc: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, Joey Gouly , Suzuki K Poulose , Oliver Upton , Zenghui Yu , Eric Auger Content-Transfer-Encoding: quoted-printable Message-Id: <576D387F-15E6-46C1-BA32-34FB64551CBA@linux.dev> References: <20250718111154.104029-1-maz@kernel.org> <20250718111154.104029-5-maz@kernel.org> <87qzy7tja1.wl-maz@kernel.org> To: Marc Zyngier X-Migadu-Flow: FLOW_OUT > On Jul 23, 2025, at 17:15, Marc Zyngier wrote: >=20 > On Wed, 23 Jul 2025 06:00:40 +0100, > Itaru Kitayama wrote: >>=20 >> 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. >>>=20 >>> Add one such test, which covers both EL1 and EL2 registers. >>>=20 >>> Signed-off-by: Marc Zyngier >>=20 >> I've tested this selftest on the RevC FVP with kvm-arm.mode=3Dnested. >>=20 >> Tested-by: Itaru Kitayama >>=20 >> Running GIC_v3 tests. >> __vm_create: mode=3D'PA-bits:40, VA-bits:48, 4K pages' type=3D'0', = pages=3D'672' >> __vm_create: mode=3D'PA-bits:40, VA-bits:48, 4K pages' type=3D'0', = pages=3D'657' >> __vm_create: mode=3D'PA-bits:40, VA-bits:48, 4K pages' type=3D'0', = pages=3D'672' >> __vm_create: mode=3D'PA-bits:40, VA-bits:48, 4K pages' type=3D'0', = pages=3D'672' >> __vm_create: mode=3D'PA-bits:40, VA-bits:48, 4K pages' type=3D'0', = pages=3D'672' >> __vm_create: mode=3D'PA-bits:40, VA-bits:48, 4K pages' type=3D'0', = pages=3D'672' >> __vm_create: mode=3D'PA-bits:40, VA-bits:48, 4K pages' type=3D'0', = pages=3D'682' >> __vm_create: mode=3D'PA-bits:40, VA-bits:48, 4K pages' type=3D'0', = pages=3D'682' >> __vm_create: mode=3D'PA-bits:40, VA-bits:48, 4K pages' type=3D'0', = pages=3D'657' >> __vm_create: mode=3D'PA-bits:40, VA-bits:48, 4K pages' type=3D'0', = pages=3D'672' >> __vm_create: mode=3D'PA-bits:40, VA-bits:48, 4K pages' type=3D'0', = pages=3D'657' >=20 > I have no idea what you tested it on, because I get none of this > nonsense. >=20 > Where is it coming from? =46rom lib/kvm_util.c file __vm_create()=E2=80=99s pr_debug(). Anyway, I rebuilt the kernel your recent two patch sets on top of = kvm-next/next and did the test.=20 # ./arm64/vgic_init Random seed: 0x6b8b4567 Running GIC_v3 tests. SKIP SYS_ICC_AP0R1_EL1 for read SKIP SYS_ICC_AP0R1_EL1 for write SKIP SYS_ICC_AP0R2_EL1 for read SKIP SYS_ICC_AP0R2_EL1 for write SKIP SYS_ICC_AP0R3_EL1 for read SKIP SYS_ICC_AP0R3_EL1 for write SKIP SYS_ICC_AP1R1_EL1 for read SKIP SYS_ICC_AP1R1_EL1 for write SKIP SYS_ICC_AP1R2_EL1 for read SKIP SYS_ICC_AP1R2_EL1 for write SKIP SYS_ICC_AP1R3_EL1 for read SKIP SYS_ICC_AP1R3_EL1 for write SKIP SYS_ICH_AP0R1_EL2 for read SKIP SYS_ICH_AP0R1_EL2 for write SKIP SYS_ICH_AP0R2_EL2 for read SKIP SYS_ICH_AP0R2_EL2 for write SKIP SYS_ICH_AP0R3_EL2 for read SKIP SYS_ICH_AP0R3_EL2 for write SKIP SYS_ICH_AP1R1_EL2 for read SKIP SYS_ICH_AP1R1_EL2 for write SKIP SYS_ICH_AP1R2_EL2 for read SKIP SYS_ICH_AP1R2_EL2 for write SKIP SYS_ICH_AP1R3_EL2 for read SKIP SYS_ICH_AP1R3_EL2 for write Thanks, Itaru. > M. >=20 > --=20 > Jazz isn't dead. It just smells funny.