vm-kernel

Hi guys, it is about one month since posting last blog entry. These days I am really very busy preparing the GRE and Tofel test. Moreover I have to work to support my life. So I have to spend less time on qemu-loongson.

Anyway, there are progress these days.

• Rewrite the GPIO I2C emulation for gdium. Now it is more clear than before.
• add st4180 rtc emulation to qemu
• add stds75 temperature sensor emulation to qemu
• change a little in uart emulation to satisfy pmon’s uart probing process
• fix a little bug in pflash_cfi02.c
• fix gdb stub bug in qemu to support mips64

Follow is the uart output of qemu-loongson.

kill-bill:/home/root/sdd/gdium/qemu-loongson/mips64el-softmmu# ./qemu-system-mips64el -M gdium -pflash gzrom.bin.gdb -nographic -S -s
Register sst39vf040  size 80000  at offset 08800000 addr 1fc00000 'pflash0' 80
devfn 70
unassigned_mem_readl Unassigned mem read 000000001fbffffc
unassigned_mem_readl Unassigned mem read 000000001fbffffc
new_sm502_mm_io 7000000 pci_mem _base 10000000
PMON2000 MIPS Initializing. Standby...
PRID=00006302
enable register space of MEMORY
DDR2 config begin_whd
DIMM read
0000008000000008read DIMM number of rows
read number of cols
module data width
DIMM SIZE=20000000
cols rows:
04030940DDR2 config end
DDR2 DLL locked
00000004
disable register space of MEMORY
jlliu : rom speed reg : 0x00000f8c
Init SDRAM Done!
Sizing caches...
Init caches...
godson2 caches found
Init caches done, cfg = 00030932
Copy PMON to execute location...
copy text section done.
Copy PMON to execute location done.
sp=80ffc000...............new_sm502_mm_io 6000000 pci_mem _base 10000000
cmd 7
mmio 6000000
FREQ
FREI
DONE
DEVI
ENVI
MAPV
nvram=bfc00000
NVRAM is invalid!
NVRAM@bfc00000
STDV
80100000: heap is already above this point
SBDD
P12PCIH