Regards, Bharat Gohil
On Thu, Feb 22, 2018 at 4:57 PM, Julien Grall <julien.gr...@arm.com> wrote: > Hi, > > Please configure your e-mail client to quote with '>'. It is incredibly > difficult to read e-mail when space is used for quoting (see below). > > > On 22/02/18 10:33, bharat gohil wrote: > >> I have tried your suggestion, I got following crash. It unable >> find interrupt controller but this kernel working fine without >> Xen. >> Do you have any suggestion? >> >> [2018-02-22 14:04:15] (XEN) DOM0: [ 0.000000] OF: >> of_irq_init: children remain, but no parents >> [2018-02-22 14:04:15] (XEN) DOM0: [ 0.000000] Kernel panic - >> not syncing: No interrupt controller found. >> [2018-02-22 14:04:15] (XEN) DOM0: [ 0.000000] CPU: 0 PID: 0 >> Comm: swapper/0 Not tainted 4.9.44+ #15 >> [2018-02-22 14:04:15] (XEN) DOM0: [ 0.000000] Hardware name: >> XXXXX board (DT) >> [2018-02-22 14:04:15] (XEN) DOM0: [ 0.000000] Call trace: >> [2018-02-22 14:04:15] (XEN) DOM0: [ 0.000000] >> [<ffffff8008089f88>] dump_backtrace+0x0/0x1d8 >> [2018-02-22 14:04:15] (XEN) DOM0: [ 0.000000] >> [<ffffff800808a184>] show_stack+0x24/0x30 >> [2018-02-22 14:04:15] (XEN) DOM0: [ 0.000000] >> [<ffffff800838a0e4>] dump_stack+0x94/0xb8 >> [2018-02-22 14:04:15] (XEN) DOM0: [ 0.000000] >> [<ffffff8008196da0>] panic+0x124/0x270 >> [2018-02-22 14:04:15] (XEN) DOM0: [ 0.000000] >> [<ffffff8008c92c08>] init_IRQ+0x24/0x2c >> [2018-02-22 14:04:15] (XEN) DOM0: [ 0.000000] >> [<ffffff8008c909f8>] start_kernel+0x230/0x388 >> [2018-02-22 14:04:15] (XEN) DOM0: [ 0.000000] >> [<ffffff8008c901e0>] __primary_switched+0x5c/0x64 >> [2018-02-22 14:04:15] (XEN) DOM0: [ 0.000000] Rebooting in 1 >> seconds.. >> >> >> SoC has different interrupt parent than GIC so I make GIC as >> interrupt parent and I am able to move ahead. update you once Dom0 >> boot completely. >> > > This looks quite wrong to me. By modifying the interrupt parent property, > you also modify which interrupt controller will be used for routing the > interrupt. This is probably the reason of the hang you mention below. > > What are the interrupts controller you have on your platform? > > >It has interrupt controller which change the polarity of SPI IRQ before redirect to GIC-400. >In DTB debug, I got following trace, >(XEN) irq 0 not connected to primary controller. Connected to /intpol-controller@10220a80. >I think Xen skip interrupt controller(if other than GIC) while domain creation. >Do you have suggestion to solve this? >Do I need to support custom IRQ controller in Xen or hard code the custom controller register in Xen and modified DTB with GIC as primary controller? > > >> >> System got hand and I got following traces related to energy aware >> scheduler. Is Xen affected with guest scheduling mechanism? I have SoC >> which has 4-Cortex A35 and 2-Cortex A72. >> >> [ 0.202545] Xen: initializing cpu4 >> [ 0.202562] Invalid sched_group_energy for CPU4 >> [ 0.202564] CPU4: update cpu_capacity 1024 >> [ 0.202566] CPU4: Booted secondary processor [410fd041] >> [ 0.230197] Detected PIPT I-cache on CPU5 >> [ 0.230202] CPU features: SANITY CHECK: Unexpected variation in >> SYS_ID_AA64MMFR0_EL1. Boot CPU: 0x00000000101122, CPU5: 0x00000000001124 >> [ 0.230250] Xen: initializing cpu5 >> [ 0.230264] Invalid sched_group_energy for CPU5 >> [ 0.230265] CPU5: update cpu_capacity 1024 >> [ 0.230267] CPU5: Booted secondary processor [410fd041] >> [ 0.230373] Brought up 6 CPUs >> [ 0.234084] SMP: Total of 6 processors activated. >> [ 0.234108] CPU features: detected feature: 32-bit EL0 Support >> [ 0.234382] CPU: All CPU(s) started at EL1 >> [ 0.234627] Invalid sched_group_energy for CPU5 >> [ 0.234662] CPU5: update max cpu_capacity 1024 >> [ 0.234680] Invalid sched_group_energy for Cluster5 >> [ 0.234698] Invalid sched_group_energy for CPU4 >> [ 0.234715] Invalid sched_group_energy for Cluster4 >> [ 0.234733] Invalid sched_group_energy for CPU3 >> [ 0.234750] Invalid sched_group_energy for Cluster3 >> [ 0.234767] Invalid sched_group_energy for CPU2 >> [ 0.234784] Invalid sched_group_energy for Cluster2 >> [ 0.234801] Invalid sched_group_energy for CPU1 >> [ 0.234819] Invalid sched_group_energy for Cluster1 >> [ 0.234836] Invalid sched_group_energy for CPU0 >> [ 0.234853] Invalid >> > > Cheers, > > -- > Julien Grall >
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