On Monday, April 9, 2018 at 11:55:26 AM UTC+5:30, J. Kiszka wrote:
> On 2018-04-08 11:59, anilapp...@gmail.com wrote:
> > On Saturday, April 7, 2018 at 3:24:13 PM UTC+5:30, Jan Kiszka wrote:
> >> On 2018-04-07 06:01, anilapp...@gmail.com wrote:
> >>> Hi Henning,
> >>> Thanks for understanding our issue for ready to help us. I want to inform 
> >>> one more failure which we observed we after non rootcell bootup( it shows 
> >>> io remap failed).
> >>>
> >>>
> >>>
> >>>     0.403714] cpuidle: using governor ladder
> >>> [    0.412705] cpuidle: using governor menu
> >>> [    0.416813] PCI: Using configuration type 1 for base access
> >>> [    0.422401] PCI: ashok JH PCI MMCONFIG
> >>> [    0.426159] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 
> >>> 0x80000000-0x8fffffff] (base 0x80000000)
> >>> [    0.435469] ------------[ cut here ]------------
> >>> [    0.440098] WARNING: CPU: 0 PID: 1 at arch/x86/mm/ioremap.c:121 
> >>> __ioremap_caller+0x286/0x360
> >>> [    0.448536] ioremap on RAM at 0x0000000080000000 - 0x000000008fffffff
> >>> [    0.454974] Modules linked in:
> >>> [    0.458050] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 
> >>> 4.9.47-rt37+-RedHawk-7.4-custom #27
> >>> [    0.466216]  ffffc9000062bd10 ffffffff8155da23 ffffc9000062bd60 
> >>> 0000000000000000
> >>> [    0.473666]  ffffc9000062bd50 ffffffff81077d1b 00000079ffffffff 
> >>> 0000000010000000
> >>> [    0.481119]  0000000000000002 ffffffff81d95e3f 0000000080000000 
> >>> 0000000000000000
> >>> [    0.488573] Call Trace:
> >>> [    0.491021]  [<ffffffff8155da23>] dump_stack+0x85/0xc2
> >>> [    0.496159]  [<ffffffff81077d1b>] __warn+0xcb/0xf0
> >>> [    0.500945]  [<ffffffff81d95e3f>] ? pci_mmcfg_arch_map+0x2f/0x70
> >>> [    0.506947]  [<ffffffff81077d8f>] warn_slowpath_fmt+0x4f/0x60
> >>> [    0.512685]  [<ffffffff81060c16>] __ioremap_caller+0x286/0x360
> >>> [    0.518510]  [<ffffffff810dec19>] ? vprintk_default+0x29/0x40
> >>> [    0.524249]  [<ffffffff811afde4>] ? printk+0x48/0x50
> >>> [    0.529213]  [<ffffffff82b35f15>] ? pcibios_resource_survey+0x70/0x70
> >>> [    0.535641]  [<ffffffff81060d07>] ioremap_nocache+0x17/0x20
> >>> [    0.541205]  [<ffffffff81d95e3f>] pci_mmcfg_arch_map+0x2f/0x70
> >>> [    0.547029]  [<ffffffff82b35fbd>] pci_mmcfg_arch_init+0x1d/0x42
> >>> [    0.552941]  [<ffffffff82ae0a25>] jailhouse_pci_arch_init+0x40/0x44
> >>> [    0.559197]  [<ffffffff82b35f50>] pci_arch_init+0x3b/0x66
> >>> [    0.564588]  [<ffffffff81000420>] do_one_initcall+0x50/0x190
> >>> [    0.570238]  [<ffffffff8109aa7a>] ? parse_args+0x26a/0x3f0
> >>> [    0.575717]  [<ffffffff82ac9154>] kernel_init_freeable+0x1cf/0x257
> >>> [    0.581887]  [<ffffffff81f3cab0>] ? rest_init+0x90/0x90
> >>> [    0.587102]  [<ffffffff81f3cabe>] kernel_init+0xe/0x120
> >>> [    0.592321]  [<ffffffff81f464fa>] ret_from_fork+0x2a/0x40
> >>> [    0.597728] ---[ end trace 38a36dc7a73d77e3 ]---
> >>> [    0.602349] PCI: can't map MMCONFIG at [mem 0x80000000-0x8fffffff]
> >>> [    0.609402] kworker/u4:4 (63) used greatest stack depth: 13512 bytes 
> >>> left
> >>>
> >>>
> >>> I attached complete logs for your reference. we will try with what ever 
> >>> the inputs you gave to us and will let you know. I am also sharing 
> >>> rootcell and non root cell configs which we are using.
> >>
> >> You configured a conflict here: The shared memory region is also a RAM
> >> region for the cell.
> >>
> >> Jan
> > 
> > Jan,
> > we added below region for shared memory
> > 
> >                .phys_start = 0x404100000,                                   
> >                             
> >  .virt_start = 0x404100000, 
> >                        .size = 0x100000, 
> > This is not RAM region. I attached iomem file for by Machine. Can you 
> > please check.
> > 
> 
> Ah, sorry, it's not the shared memory, it's the MMCONFIG region:
> 
> [    0.440098] WARNING: CPU: 0 PID: 1 at arch/x86/mm/ioremap.c:121 
> __ioremap_caller+0x286/0x360
> [    0.448536] ioremap on RAM at 0x0000000080000000 - 0x000000008fffffff
> 
> because of (fixed)
> 
>               .platform_info = {
>                       .pci_mmconfig_base = 0x80000000,
>                       .pci_mmconfig_end_bus = 0xff,
> 
> 
> vs. 
> 
>                /* high RAM */ 
>                {
>                         .phys_start = 0x404300000/*0x401100000*/,
>                         .virt_start = 0x00200000,
>                         .size = 0xC0000000, /*1GB*/
>                         /*.size = 0x32000000, */      /*800MB try*/   
> /*0x1BF00000, 400MB rajmohan*/ /*0xC800000*/
>                         .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
>                               JAILHOUSE_MEM_EXECUTE | JAILHOUSE_MEM_DMA |
>                               JAILHOUSE_MEM_LOADABLE,
>                },
> 
> BTW, I would recommend to cleanup your configs. They are... hard to read
> now.
> 
> Jan
> -- 
> Siemens AG, Corporate Technology, CT RDA IOT SES-DE
> Corporate Competence Center Embedded Linux

Hi Jan,

>From the above config, pci_mmconfig_base = 0x80000000(2GB)  & phys_start = 
>0x404300000, size is 0xC0000000 (1GB)Our hypervisor start addresses is 
>0x400000000(16Gb).
How will they conflict?
Regards,
Anil

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