On Sunday, October 21, 2018 at 7:34:12 PM UTC+8, J. Kiszka wrote: > On 19.10.18 11:19, Jan Kiszka wrote: > > On 19.10.18 09:42, minskey guo wrote: > >> > >>>> > >>>> to get a bzImage for non-root cell. Now, the COM1 has output now during > >>>> booting non-root-cell linux , but I run into another issue: > >>>> > >>>> 1.797742] RAPL PMU: API unit is 2^-32 Joules, 5 fixed counters, > >>>> 655360 > >>>> ms ovfl timer > >>>> [ 1.805696] RAPL PMU: hw unit of domain pp0-core 2^-14 Joules > >>>> [ 1.811470] RAPL PMU: hw unit of domain package 2^-14 Joules > >>>> [ 1.817155] RAPL PMU: hw unit of domain dram 2^-14 Joules > >>>> [ 1.822574] RAPL PMU: hw unit of domain pp1-gpu 2^-14 Joules > >>>> [ 1.828254] RAPL PMU: hw unit of domain psys 2^-14 Joules > >>>> [ 1.833679] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: > >>>> 0x2717868ea45, max_idle_s > >>>> [ 1.843722] clocksource: Switched to clocksource tsc > >>>> FATAL: Invalid PIO read, port: 87 size: 1 > >>> > >>> That's a legacy resources, and that indicates your kernel lacks Jailhouse > >>> awareness (CONFIG_JAILHOUSE_GUEST). There kernel will also report during > >>> boot if > >>> it detected (and is aware of) Jailhouse. > >> > >> My kconfig has CONFIG_JAILHOUSE_GUEST. Just realized that 87 is hex, so > >> it is > >> DMA page register port. Currently, I set pio_bitmap[] for that port to 1 > >> in > >> both root and non-root cell. What else should I do ? > >> > > > > You should not (have to) hand this over. I thought to remember it was > > disabled > > by one of the platform hooks in x86 that we have for Jailhouse, but maybe > > it was > > some driver that should rather be turned off. > > > > Try deriving your config from the one we using in jailhouse-images. > > Actually, we have the issue in jailhouse-image as well. Will send out a patch > these days, but the trick to resolve it is simple: disable CONFIG_ISA_DMA_API > (requires CONFIG_EXPERT). The issue started with 4.18 > > Jan > > -- > Siemens AG, Corporate Technology, CT RDA IOT SES-DE > Corporate Competence Center Embedded Linux
Can u send me the patch for a try ? thanks, -Minskey -- You received this message because you are subscribed to the Google Groups "Jailhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to jailhouse-dev+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
