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[Qemu-devel] [Bug 1805445] Re: QEMU arm virt machine was stopped by STMF
From: |
Igor |
Subject: |
[Qemu-devel] [Bug 1805445] Re: QEMU arm virt machine was stopped by STMFD command while debug process |
Date: |
Tue, 27 Nov 2018 18:26:21 -0000 |
Okey, thank you for attentioned me to arm mode.
The STR instruction is STR R11, [0x82000012]. Can I set rule for qemu to write
RAM from 0x80000000 to 0x8FFFFFFF for execute basic arm instruction, Or need
fix source and rebuild qemu?
I have experience to rebuild source qemu for change spi flash from
n25q256a to n25q032a11. Do you include to wishlist change flash-chip
function?
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https://bugs.launchpad.net/bugs/1805445
Title:
QEMU arm virt machine was stopped by STMFD command while debug process
Status in QEMU:
New
Bug description:
Hello, i have a big problem with QEMU arm virtual machine. So...
I run QEMU machine with bare-metal ThreadX fullflash from Texet TM-333 phone
(Spreadtrum platform)
[CODE]qemu-system-arm -S -gdb tcp::1234,ipv4 -drive
file=C:\cygwin64\home\flash.bin,if=mtd,format=raw -M palmetto-bmc -cpu arm926
-m 64M[/CODE]
I use palmetto-bmc platform because it have ARM926EJ-S core and support SPI
Flash.
Then, i attach to gdb qemu process from IDA and run code step-by-step.
[IMG]https://pp.userapi.com/c847218/v847218546/13ec1c/iSIcre5-js4.jpg[/IMG]
When the IDA run 00032534 STR R11, [R10] command
[IMG]https://pp.userapi.com/c846416/v846416708/133f60/GQzxORvf4Tg.jpg[/IMG]
instead of store R11 on R10 adress, it jump 000328DC STMFD SP!, {R0-R12,LR}
instruction...
[IMG]https://pp.userapi.com/c847218/v847218546/13ec26/32A0VcaJywg.jpg[/IMG]
and virt machine not execute new instruction...
[IMG]https://pp.userapi.com/c850624/v850624111/528f3/N7FTpgloWVU.jpg[/IMG]
and why i did not change flash from n25q256a to n25q032a11 in aspeed.c
without rebuild qemu?
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- [Qemu-devel] [Bug 1805445] [NEW] QEMU arm virt machine was stopped by STMFD command while debug process, Igor, 2018/11/27
- [Qemu-devel] [Bug 1805445] Re: QEMU arm virt machine was stopped by STMFD command while debug process, Peter Maydell, 2018/11/27
- [Qemu-devel] [Bug 1805445] Re: QEMU arm virt machine was stopped by STMFD command while debug process, Peter Maydell, 2018/11/27
- [Qemu-devel] [Bug 1805445] Re: QEMU arm virt machine was stopped by STMFD command while debug process,
Igor <=
- [Qemu-devel] [Bug 1805445] Re: QEMU arm virt machine was stopped by STMFD command while debug process, Peter Maydell, 2018/11/27
- [Qemu-devel] [Bug 1805445] Re: QEMU arm virt machine was stopped by STMFD command while debug process, Igor, 2018/11/27
- [Qemu-devel] [Bug 1805445] Re: QEMU arm virt machine was stopped by STMFD command while debug process, Igor, 2018/11/27
- [Qemu-devel] [Bug 1805445] Re: QEMU arm virt machine was stopped by STMFD command while debug process, Peter Maydell, 2018/11/27
- [Qemu-devel] [Bug 1805445] Re: QEMU arm virt machine was stopped by STMFD command while debug process, Igor, 2018/11/28
- [Qemu-devel] [Bug 1805445] Re: QEMU arm virt machine was stopped by STMFD command while debug process, Igor, 2018/11/28