Hi,
I am trying to boot Xen on TX2. But I got a problem with loading domain0
kernel. Hope somebody could help me.
I compiled the Xen 4.9.1 on Jetson TX2. The domain0 kernel version is 4.4.38. I
made some modifications to the device tree provided by the TX2. Then I can boot
xen hypervisor, but when it comes to boot domain0 kernel. It hangs there. No
more output. I enabled Xen related configurations in domain0 kernel and pass
the console=hvc0 command to the kernel. It doesn't work. What is the problem
?? Any suggestion is appreciated. Thanks!
Baoqian Wang
Here is the bootargs and log:
U-Boot 2016.07-g0ce7ca2 (Jul 20 2017 - 00:45:25 -0700)
TEGRA186
Model: NVIDIA P2771--500
DRAM: 7.8 GiB
MC: Tegra SD/MMC: 0, Tegra SD/MMC: 1
In:serial
Out: serial
Err: serial
Net: eth0: ethernet@249
Hit any key to stop autoboot: 2 ^H^H^H 0
Tegra186 (P2771--500) # ext4load $dev $kernel_addr_r $kernel_path
20418088 bytes read in 538 ms (36.2 MiB/s)
Tegra186 (P2771--500) # setenv kernel_size 0x$filesize
Tegra186 (P2771--500) #
Tegra186 (P2771--500) # ext4load $dev $xen_addr_r $xen_path
819536 bytes read in 100 ms (7.8 MiB/s)
Tegra186 (P2771--500) # ext4load $dev $dtb_addr_r $dtb_path
267196 bytes read in 92 ms (2.8 MiB/s)
Tegra186 (P2771--500) # fdt addr $dtb_addr_r
Tegra186 (P2771--500) # fdt resize
Tegra186 (P2771--500) # fdt set /chosen xen,xen-bootargs \"$xen_bootargs\"
Tegra186 (P2771--500) # fdt set /chosen xen,dom0-bootargs \"$dom0_bootargs\"
Tegra186 (P2771--500) # fdt set /chosen xen,dom0-bootargs \"$dom0_bootargs\"
Tegra186 (P2771--500) # fdt mknode /chosen modules
Tegra186 (P2771--500) # fdt set /chosen/modules '#address-cells' <1>
Tegra186 (P2771--500) # fdt set /chosen/modules '#size-cells' <1>
Tegra186 (P2771--500) # fdt mknode /chosen/modules module@0
Tegra186 (P2771--500) # fdt set /chosen/modules/module@0 compatible
xen,linux-zimage xen,multiboot-module
Tegra186 (P2771--500) # fdt set /chosen/modules/module@0 reg
<$kernel_addr_r $kernel_size>
Tegra186 (P2771--500) # fdt print /chosen
chosen {
xen,dom0-bootargs = "vmalloc=256M console=hvc0 psci=enable
earlyprintk=xen debug clk_ignore_unused root=/dev/mmcblk0p1 rootwait rw";
xen,xen-bootargs = "sync_console console=dtuart dtuart=/serial@310
earlyprintk=xen dom0_mem=800M";
modules {
#size-cells = <0x0001>;
#address-cells = <0x0001>;
module@0 {
reg = <0x8200 0x01378e28>;
compatible = "xen,linux-zimage", "xen,multiboot-module";
};
};
};
Tegra186 (P2771--500) # booti $xen_addr_r - $dtb_addr_r
Image lacks image_size field, assuming 16MiB
## Flattened Device Tree blob at 9200
Booting using the fdt blob at 0x9200
reserving fdt memory region: addr=8000 size=1
reserving fdt memory region: addr=9200 size=42000
Using Device Tree in place at 9200, end 92044fff
Starting kernel ...
- UART enabled -
- CPU 0100 booting -
- Current EL 0008 -
- Xen starting at EL2 -
- Zero BSS -
- Setting up control registers -
- Turning on paging -
- Ready -
(XEN) Checking for initrd in /chosen
(XEN) RAM: 8000 - efff
(XEN) RAM: f011 - 000275f0
(XEN)
(XEN) MODULE[0]: 9200 - 92042000 Device Tree
(XEN) MODULE[1]: 8200 - 83378e28 Kernel
(XEN) RESVD[0]: 8000 - 8001
(XEN) RESVD[1]: 9200 - 92042000
(XEN)
(XEN) Command line: sync_console console=dtuart dtuart=/serial@310
earlyprintk=xen dom0_mem=800M
(XEN) Placing Xen at 0x000275c0-0x000275e0
(XEN) Update BOOTMOD_XEN from 8000-80112d81 =>
000275c0-000275d12d81
(XEN) Domain heap initialised
(XEN) Booting using Device Tree
(XEN) Platform: Generic System
(XEN) Looking for dtuart at "/serial@3 Xen 4.9.0
(XEN) Xen version 4.9.0 (root@) (gcc (Ubuntu/Linaro 5.3.1-14ubuntu2.1) 5.3.1
20160413) debug=y Mon Dec 18 21:49:04 UTC 2017
(XEN) Latest ChangeSet:
(XEN) Console output is synchronous.
(XEN) Processor: 411fd073: "ARM Limited", variant: 0x1, part 0xd07, rev 0x3
(XEN) 64-bit Execution:
(XEN) Processor Features:
(XEN) Exception Levels: EL3:64+32 EL2:64+32 EL1:64+32 EL0:64+32
(XEN) Extensions: FloatingPoint AdvancedSIMD
(XEN) Debug Features: 10305106
(XEN) Auxiliary Features:
(XEN) Memory Model Features: 1124
(XEN) ISA Features: 00011120
(XEN) 32-bit Execution:
(XEN) Processor Features: 0131:00011011
(XEN) Instruction Sets: AArch32 A32 Thumb Thumb-2 Jazelle
(XEN) Extensions: GenericTimer Security
(XEN) Debug Features: 03010066
(XEN) Auxiliary Features:
(XEN) M
