On Sat, 21 Aug 2021 13:39:04 +0100, Chester Lin <clin@xxxxxxxx> wrote: > > The following log shows that the "Last" bit (GICR_TYPER[4]) of RD at > 508e0000 has been set. > > localhost:~ # dmesg | grep GIC > [ 0.000000] CPU features: detected: GIC system register CPU interface > [ 0.000000] GICv3: 544 SPIs implemented > [ 0.000000] GICv3: 0 Extended SPIs implemented > [ 0.000000] GICv3: Distributor has no Range Selector support > [ 0.000000] GICv3: 16 PPIs implemented > [ 0.000000] GICv3: CPU0: found redistributor 0 region 0:0x0000000050880000 last: 0 > [ 0.078745] GICv3: CPU1: found redistributor 1 region 0:0x00000000508a0000 last: 0 > [ 0.089598] GICv3: CPU2: found redistributor 100 region 0:0x00000000508c0000 last: 0 > [ 0.100395] GICv3: CPU3: found redistributor 101 region 0:0x00000000508e0000 last: 1 Looks convincing enough. Trimming the RD range to 512kB is then the right thing to do. Thanks, M. -- Without deviation from the norm, progress is not possible.