[PATCH v3 12/36] KVM: arm64: gic-v5: Support GICv5 FGTs & FGUs

Jonathan Cameron jonathan.cameron at huawei.com
Mon Jan 12 06:55:24 PST 2026


On Fri, 9 Jan 2026 17:04:42 +0000
Sascha Bischoff <Sascha.Bischoff at arm.com> wrote:

> Extend the existing FGT/FGU infrastructure to include the GICv5 trap
> registers (ICH_HFGRTR_EL2, ICH_HFGWTR_EL2, ICH_HFGITR_EL2). This
> involves mapping the trap registers and their bits to the
> corresponding feature that introduces them (FEAT_GCIE for all, in this
> case), and mapping each trap bit to the system register/instruction
> controlled by it.
> 
> As of this change, none of the GICv5 instructions or register accesses
> are being trapped.
> 
> Signed-off-by: Sascha Bischoff <sascha.bischoff at arm.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron at huawei.com>





More information about the linux-arm-kernel mailing list