Week 4: Jailhouse recipe, part 2
Last week I continued to work on the Jailhouse recipe. I published my Yocto layer meta-jailhouse with the current code. I have a working Jailhouse recipe that should give all the necessary stuff. I don’t have a recipe that would set up the ARM Trusted Firmware on the Raspberry yet, so I had to copy the bl31.bin manually to the boot partition of the SD card and set armstub=bl31.bin in config.txt. I’ve got the binary from the build of jailhouse-images. However, when enabling Jailhouse, I get this error message:
raspberrypi4-64:~# jailhouse enable /usr/share/jailhouse/cells/rpi4.cell
Initializing Jailhouse hypervisor v0.12 (59-g4ce7658d-dirty) on CPU 2
Code location: 0x0000ffffc0200800
Page pool usage after early setup: mem 39/994, remap 0/131072
Initializing processors:
CPU 2... OK
CPU 1... OK
CPU 3... OK
CPU 0... OK
Initializing unit: irqchip
Initializing unit: ARM SMMU v3
Initializing unit: PVU IOMMU
Initializing unit: PCI
Adding virtual PCI device 00:00.0 to cell "Raspberry-Pi4"
Adding virtual PCI device 00:01.0 to cell "Raspberry-Pi4"
Page pool usage after late setup: mem 61/994, remap 5/131072
FATAL: instruction abort at 0xfbfff7d0
FATAL: forbidden access (exception class 0x20)
Cell state before exception:
pc: ffffffc008c147d0 lr: ffffffc008c147d0 spsr: 20000085 EL1
sp: ffffffc01190ba70 esr: 20 1 0000086
x0: 0000000000000000 x1: 0000000000000000 x2: 0000000000000000
x3: 0000000000000000 x4: 0000000000000000 x5: 0000000000000000
x6: 0000000000000000 x7: 0000000000000000 x8: 0000000000000000
x9: 0000000000000000 x10: 0000000000000000 x11: 0000000000000000
x12: 0000000000000000 x13: 0000000000000000 x14: 0000000000000000
x15: 0000000000000000 x16: 0000000000000000 x17: 0000000000000000
x18: 0000000000000000 x19: ffffffc008c1bc28 x20: ffffffc014400000
x21: 0000000000000000 x22: 0000000000000000 x23: 0000000000000000
x24: 0000000000000420 x25: ffffffc008c1b010 x26: 0000000000000004
x27: ffffffc008c1b880 x28: ffffffc008c1bc28 x29: ffffffc01190ba70
Parking CPU 1 (Cell: "Raspberry-Pi4")
I tried to solve that by using the kernel patches from Jan Kiszska’s kernel repository, but it didn’t help. So now I have to dive into this further.
Last week I continued to work on the Jailhouse recipe. I published my Yocto layer meta-jailhouse with the current code. I have a working Jailhouse recipe that should give all the necessary stuff. I don’t have a recipe that would set up the ARM Trusted Firmware on the Raspberry yet, so I had to copy the bl31.bin manually to the boot partition of the SD card and set armstub=bl31.bin in config.txt. I’ve got the binary from the build of jailhouse-images. However, when enabling Jailhouse, I get this error message:
raspberrypi4-64:~# jailhouse enable /usr/share/jailhouse/cells/rpi4.cell
Initializing Jailhouse hypervisor v0.12 (59-g4ce7658d-dirty) on CPU 2
Code location: 0x0000ffffc0200800
Page pool usage after early setup: mem 39/994, remap 0/131072
Initializing processors:
CPU 2... OK
CPU 1... OK
CPU 3... OK
CPU 0... OK
Initializing unit: irqchip
Initializing unit: ARM SMMU v3
Initializing unit: PVU IOMMU
Initializing unit: PCI
Adding virtual PCI device 00:00.0 to cell "Raspberry-Pi4"
Adding virtual PCI device 00:01.0 to cell "Raspberry-Pi4"
Page pool usage after late setup: mem 61/994, remap 5/131072
FATAL: instruction abort at 0xfbfff7d0
FATAL: forbidden access (exception class 0x20)
Cell state before exception:
pc: ffffffc008c147d0 lr: ffffffc008c147d0 spsr: 20000085 EL1
sp: ffffffc01190ba70 esr: 20 1 0000086
x0: 0000000000000000 x1: 0000000000000000 x2: 0000000000000000
x3: 0000000000000000 x4: 0000000000000000 x5: 0000000000000000
x6: 0000000000000000 x7: 0000000000000000 x8: 0000000000000000
x9: 0000000000000000 x10: 0000000000000000 x11: 0000000000000000
x12: 0000000000000000 x13: 0000000000000000 x14: 0000000000000000
x15: 0000000000000000 x16: 0000000000000000 x17: 0000000000000000
x18: 0000000000000000 x19: ffffffc008c1bc28 x20: ffffffc014400000
x21: 0000000000000000 x22: 0000000000000000 x23: 0000000000000000
x24: 0000000000000420 x25: ffffffc008c1b010 x26: 0000000000000004
x27: ffffffc008c1b880 x28: ffffffc008c1bc28 x29: ffffffc01190ba70
Parking CPU 1 (Cell: "Raspberry-Pi4")
I tried to solve that by using the kernel patches from Jan Kiszska’s kernel repository, but it didn’t help. So now I have to dive into this further.
Jakub
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