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Re: [Xen-devel] [PATCH FOR-4.5] xen: arm64: Handle memory banks which are not 1GB aligned

To: Ian Campbell <ian.campbell@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxx>
From: Suravee Suthikulanit <suravee.suthikulpanit@xxxxxxx>
Date: Fri, 10 Oct 2014 19:28:29 -0500
Cc: Roy Franz <roy.franz@xxxxxxxxxx>, julien.grall@xxxxxxxxxx, tim@xxxxxxx, Vijay Kilari <vijay.kilari@xxxxxxxxx>, stefano.stabellini@xxxxxxxxxxxxx
Delivery-date: Sat, 11 Oct 2014 00:29:19 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

Ian,

This one seems to workaround the issue with pagetable setup in Xen wesaw earlier here:


http://lists.xen.org/archives/html/xen-devel/2014-10/msg01013.html

However, it's now breaking in Dom0 when trying to parse device tree.I'll look at this over the weekend. Here is the boot log.


Shell> FS0:xen -cfg=xen-seattle.cfg

Xen 4.5-unstable (c/s Fri Oct 10 15:43:14 2014 +0100 git:38bbdef-dirty)EFI loader

Image: 0x00000083fbc25000-0x00000083fc525890
- UART enabled -
- CPU 00000000 booting -
- Current EL 00000008 -
- Xen starting at EL2 -
- Zero BSS -
- Setting up control registers -
- Setup boot first -
- Setup boot second -
- Setup boot third -
- Turning on paging -
- Ready -
(XEN) Checking for initrd in /chosen
(XEN) RAM: 0000008001000000 - 0000008007ffdfff
(XEN) RAM: 0000008007ffe000 - 0000008007ffffff
(XEN) RAM: 0000008008000000 - 000000801fffdfff
(XEN) RAM: 000000801fffe000 - 000000801fffffff
(XEN) RAM: 0000008020000000 - 0000008027ffffff
(XEN) RAM: 0000008028100000 - 000000802fffffff
(XEN) RAM: 0000008030001000 - 00000083f0ffffff
(XEN) RAM: 00000083f1000000 - 00000083f101ffff
(XEN) RAM: 00000083f1020000 - 00000083fbc22fff
(XEN) RAM: 00000083fc529000 - 00000083fc529fff
(XEN) RAM: 00000083fc715000 - 00000083fec1cfff
(XEN) RAM: 00000083fec1d000 - 00000083fee7bfff
(XEN) RAM: 00000083fee7c000 - 00000083ff21cfff
(XEN) RAM: 00000083ff21d000 - 00000083ff253fff
(XEN) RAM: 00000083ffe70000 - 00000083ffffffff
(XEN)
(XEN) MODULE[0]: 00000083fc526000 - 00000083fc529000 Device Tree

(XEN) MODULE[1]: 00000083fbc25000 - 00000083fc525890 Kernelconsole=hvc0 console=ttyAMA0,115200 earlycon=pl011,0xe1010000root=/dev/sda2 rootwait

(XEN) MODULE[2]: 0000008020000000 - 00000080209e6950 Kernel
(XEN)

(XEN) Command line: FS0:xen no-bootscrub console=dtuart conswitch=xdtuart=serial0 noreboot sync_console dom0_mem=256M dom0_max_vcpus=1

(XEN) Placing Xen at 0x0000008027e00000-0x0000008028000000

(XEN) Update BOOTMOD_XEN from 00000083fc52b000-00000083fc635d81 =>0000008027e00000-0000008027f0ad81

(XEN) Domain heap initialised
(XEN) Looking for UART console serial0
 Xen 4.5-unstable

(XEN) Xen version 4.5-unstable (ssuthiku@xxxxxxx) (aarch64-linux-gnu-gcc(crosstool-NG linaro-1.13.1-4.8-2014.01 - Linaro GCC 2013.11) 4.8.320140106 (prerelease)) debug=y Fri Oct 10 19:02:44 CDT 2014

(XEN) Latest ChangeSet: Fri Oct 10 15:43:14 2014 +0100 git:38bbdef-dirty
(XEN) Console output is synchronous.
(XEN) Processor: 410fd070: "ARM Limited", variant: 0x0, part 0xd07, rev 0x0
(XEN) 64-bit Execution:
(XEN)   Processor Features: 0000000000002222 0000000000000000
(XEN)     Exception Levels: EL3:64+32 EL2:64+32 EL1:64+32 EL0:64+32
(XEN)     Extensions: FloatingPoint AdvancedSIMD
(XEN)   Debug Features: 0000000010305106 0000000000000000
(XEN)   Auxiliary Features: 0000000000000000 0000000000000000
(XEN)   Memory Model Features: 0000000000001124 0000000000000000
(XEN)   ISA Features:  0000000000011120 0000000000000000
(XEN) 32-bit Execution:
(XEN)   Processor Features: 00000131:00011011
(XEN)     Instruction Sets: AArch32 Thumb Thumb-2 Jazelle
(XEN)     Extensions: GenericTimer Security
(XEN)   Debug Features: 03010066
(XEN)   Auxiliary Features: 00000000
(XEN)   Memory Model Features: 10101105 40000000 01260000 02102211
(XEN)  ISA Features: 02101110 13112111 21232042 01112131 00011142 00011121
(XEN) Platform: SEATTLE
(XEN) Generic Timer IRQ: phys=30 hyp=26 virt=27
(XEN) Using generic timer at 187500 KHz
(XEN) GICv2 initialization:
(XEN)         gic_dist_addr=00000000e1110000
(XEN)         gic_cpu_addr=00000000e112f000
(XEN)         gic_hyp_addr=00000000e1140000
(XEN)         gic_vcpu_addr=00000000e1160000
(XEN)         gic_maintenance_irq=24
(XEN) GICv2: 448 lines, 8 cpus, secure (IID 0200143b).
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) I/O virtualisation disabled
(XEN) Allocated console ring of 64 KiB.
(XEN) Bringing up CPU1
- CPU 00000201 booting -
- Current EL 00000008 -
- Xen starting at EL2 -
- Setting up control registers -
- Setup boot first -
- Setup boot second -
- Setup boot third -
- Turning on paging -
- Ready -
(XEN) CPU 1 booted.
(XEN) Bringing up CPU2
- CPU 00000200 booting -
- Current EL 00000008 -
- Xen starting at EL2 -
- Setting up control registers -
- Setup boot first -
- Setup boot second -
- Setup boot third -
- Turning on paging -
- Ready -
(XEN) CPU 2 booted.
(XEN) Bringing up CPU3
- CPU 00000101 booting -
- Current EL 00000008 -
- Xen starting at EL2 -
- Setting up control registers -
- Setup boot first -
- Setup boot second -
- Setup boot third -
- Turning on paging -
- Ready -
(XEN) CPU 3 booted.
(XEN) Bringing up CPU4
- CPU 00000100 booting -
- Current EL 00000008 -
- Xen starting at EL2 -
- Setting up control registers -
- Setup boot first -
- Setup boot second -
- Setup boot third -
- Turning on paging -
- Ready -
(XEN) CPU 4 booted.
(XEN) Bringing up CPU5
- CPU 00000001 booting -
- Current EL 00000008 -
- Xen starting at EL2 -
- Setting up control registers -
- Setup boot first -
- Setup boot second -
- Setup boot third -
- Turning on paging -
- Ready -
(XEN) Brought up 6 CPUs
(XEN) CPU 5 booted.
(XEN) P2M: 44-bit IPA with 44-bit PA
(XEN) P2M: 4 levels with order-0 root, VTCR 0x80043594
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Loading kernel from boot module @ 00000083fbc25000
(XEN) Allocating 1:1 mappings totalling 256MB for dom0:
(XEN) BANK[0] 0x00008010000000-0x00008020000000 (256MB)

(XEN) Loading zImage from 00000083fbc25000 to0000008010080000-0000008010980890

(XEN) Loading dom0 DTB to 0x0000008018000000-0x000000801800190d
(XEN) Std. Loglevel: All
(XEN) Guest Loglevel: All
(XEN) **********************************************
(XEN) ******* WARNING: CONSOLE OUTPUT IS SYNCHRONOUS
(XEN) ******* This option is intended to aid debugging of Xen by ensuring
(XEN) ******* that all output is synchronously delivered on the serial line.
(XEN) ******* However it can introduce SIGNIFICANT latencies and affect
(XEN) ******* timekeeping. It is NOT recommended for production use!
(XEN) **********************************************
(XEN) 3... 2... 1...

(XEN) *** Serial input -> DOM0 (type 'CTRL-x' three times to switchinput to Xen)

(XEN) Freed 288kB init memory.

(XEN) DOM0: Linux version 3.17.0-rc7-styx-xen+(ssuthiku@ssuthiku-fedora-lt) (gcc version 4.8.3 20140106 (prerelease)(crosstool-NG linaro(XEN) DOM0: -1.13.1-4.8-2014.01 - Linaro GCC 2013.11) ) #25 SMP Tue Sep30 03:07:19 CDT 2014

(XEN) DOM0: CPU: AArch64 Processor [410fd070] revision 0
(XEN) DOM0: Detected PIPT I-cache on CPU0
(XEN) DOM0: Early serial console at I/O port 0x0 (options '')
(XEN) DOM0: bootconsole [uart0] enabled
(XEN) DOM0: efi: Getting EFI parameters from FDT:

(XEN) DOM0: Unhandled fault: ttbr address size fault (0x96000000) at0xffff7ffffbc7ff18

(XEN) DOM0: Internal error: : 96000000 [#1] SMP
(XEN) DOM0: Modules linked in:
(XEN) DOM0: CPU: 0 PID: 0 Comm: swapper Not tainted 3.17.0-rc7-styx-xen+ #25

(XEN) DOM0: task: ffff8000009188e0 ti: ffff80000090c000 task.ti:ffff80000090c000

(XEN) DOM0: PC is at uefi_init+0xac/0x1a4
(XEN) DOM0: LR is at uefi_init+0xa0/0x1a4

(XEN) DOM0: pc : [<ffff8000008c0dc0>] lr : [<ffff8000008c0db4>] pstate:600000c5

(XEN) DOM0: sp : ffff80000090fdf0
(XEN) DOM0: x29: ffff80000090fdf0 x28: 0000808010000000
(XEN) DOM0: x27: ffff8000000805a8 x26: 0000008010a02000
(XEN) DOM0: x25: 00000080109ff000 x24: 0000008010000000
(XEN) DOM0: x23: ffff80000095e338 x22: ffff80000095e000
(XEN) DOM0: x21: ffff80000095e000 x20: ffff80000090fe38
(XEN) DOM0: x19: ffff80000095e000 x18: 0000000000001124
(XEN) DOM0: x17: 0000000000000000 x16: 0000000000002222
(XEN) DOM0: x15: ffffffffffffffff x14: 0fffffffffffffff
(XEN) DOM0: x13: ffffff0000000000 x12: 0000000000000000
(XEN) DOM0: x11: fffffffffffffffd x10: 0000000000000003
(XEN) DOM0: x9 : 0000000000000008 x8 : 0000000000000003
(XEN) DOM0: x7 : 0000000000000001 x6 : 0000000000180000
(XEN) DOM0: x5 : 0000008010983000 x4 : ffff800000983000
(XEN) DOM0: x3 : 0000000000000020 x2 : ffff7ffffbc7ff18
(XEN) DOM0: x1 : ffff80000095e338 x0 : 0000000020494249
(XEN) DOM0:
(XEN) DOM0: Process swapper (pid: 0, stack limit = 0xffff80000090c058)
(XEN) DOM0: Stack: (0xffff80000090fdf0 to 0xffff800000910000)

(XEN) DOM0: fde0: 0090fea0 ffff8000008c155c ffff8000(XEN) DOM0: fe00: 008f9000 ffff8000 008f91c0 ffff8000 009845a0 ffff800000984000 ffff8000(XEN) DOM0: fe20: 00984598 ffff8000 008d1408 ffff8000 008f9000 ffff80006e6b6e75 006e776f(XEN) DOM0: fe40: 00000000 00000000 00000000 00000000 00000000 0000000000000000 00000000(XEN) DOM0: fe60: 00000000 00000000 00000000 00000000 00000000 0000000000000000 00000000(XEN) DOM0: fe80: 00000000 00000000 00000000 00000000 00000000 0000000000000000 ffff8000(XEN) DOM0: fea0: 0090ff10 ffff8000 008bf718 ffff8000 00984000 ffff800000984000 ffff8000(XEN) DOM0: fec0: 00080000 ffff8000 0090ffe8 ffff8000 1091a000 0000008010000000 00000080(XEN) DOM0: fee0: 109ff000 00000080 10a02000 00000080 ff3bef18 00000083fbc23018 00000083(XEN) DOM0: ff00: 000004e0 00000030 00000001 ffff8000 0090ffa0 ffff8000008bd67c ffff8000(XEN) DOM0: ff20: 00984000 ffff8000 008f7e30 ffff8000 00000000 0000000000984000 ffff8000(XEN) DOM0: ff40: 1091a000 00000080 10000000 00000080 109ff000 0000008010a02000 00000080(XEN) DOM0: ff60: 000805a8 ffff8000 006a90c8 ffff8000 00000001 0000000018000000 00000080(XEN) DOM0: ff80: 00984100 ffff8000 00115ce0 ffff8000 009845e8 ffff8000009fed78 ffff8000(XEN) DOM0: ffa0: 00000000 00000000 10080340 00000080 00000000 0000000000000e11 00000000(XEN) DOM0: ffc0: 18000000 00000080 410fd070 00000000 1091a000 0000008000000000 00000000(XEN) DOM0: ffe0: 00000000 00000000 008f8658 ffff8000 00000000 0000000000000000 00000000

(XEN) DOM0: Call trace:
(XEN) DOM0: [<ffff8000008c0dc0>] uefi_init+0xac/0x1a4
(XEN) DOM0: [<ffff8000008c1558>] efi_init+0x98/0x1d8
(XEN) DOM0: [<ffff8000008bf714>] setup_arch+0x224/0x528
(XEN) DOM0: [<ffff8000008bd678>] start_kernel+0x8c/0x39c
(XEN) DOM0: Code: 97ed8f84 f9412e62 d2884920 f2a40920 (f9400041)
(XEN) DOM0: ---[ end trace cb88537fdc8fa200 ]---
(XEN) DOM0: Kernel panic - not syncing: Attempted to kill the idle task!

(XEN) DOM0: ---[ end Kernel panic - not syncing: Attempted to kill theidle task!


Thanks,
Suravee


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References:
- [Xen-devel] [PATCH FOR-4.5] xen: arm64: Handle memory banks which are not 1GB aligned
  - From: Ian Campbell

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