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Re: [Bug 1897680] Re: memory address over 0x2000_7ffc is not accessible
From: |
Changho Choi |
Subject: |
Re: [Bug 1897680] Re: memory address over 0x2000_7ffc is not accessible in mps2-an505 |
Date: |
Tue, 29 Sep 2020 10:10:39 -0000 |
Thank you for all your kind answers and suggestions.
I also have confirmed that the memory address over 0x2000_8000 is not
accessible in the real board.
Regards,
Changho Choi
2020년 9월 29일 (화) 오후 6:25, Peter Maydell <1897680@bugs.launchpad.net>님이
작성:
> (If you were just interested in having a large area of contiguous RAM,
> the "PSRAM" is the largest lump on this board: it's 16MB starting at
> 0x8000_0000.)
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1897680
>
> Title:
> memory address over 0x2000_7ffc is not accessible in mps2-an505
>
> Status in QEMU:
> New
>
> Bug description:
> I currently run qemu with the following options
> `qemu-system-aarch64 -machine mps2-an505 -cpu cortex-m33 -m 16`
>
> For some reason, memory address over 0x2000_7ffc is not accessible.
> It can be tested in gdb as follow.
>
> (gdb) x/x 0x20007ffc
> 0x20007ffc: 0x00000000
> (gdb) x/x 0x20007ffd
> 0x20007ffd: Cannot access memory at address 0x20007ffd
> (gdb) x/x 0x20008000
> 0x20008000: Cannot access memory at address 0x20008000
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/qemu/+bug/1897680/+subscriptions
>
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https://bugs.launchpad.net/bugs/1897680
Title:
memory address over 0x2000_7ffc is not accessible in mps2-an505
Status in QEMU:
New
Bug description:
I currently run qemu with the following options
`qemu-system-aarch64 -machine mps2-an505 -cpu cortex-m33 -m 16`
For some reason, memory address over 0x2000_7ffc is not accessible.
It can be tested in gdb as follow.
(gdb) x/x 0x20007ffc
0x20007ffc: 0x00000000
(gdb) x/x 0x20007ffd
0x20007ffd: Cannot access memory at address 0x20007ffd
(gdb) x/x 0x20008000
0x20008000: Cannot access memory at address 0x20008000
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1897680/+subscriptions
- [Bug 1897680] [NEW] memory address over 0x2000_7ffc is not accessible in mps2-an505, Changho Choi, 2020/09/29
- [Bug 1897680] Re: memory address over 0x2000_7ffc is not accessible in mps2-an505, Peter Maydell, 2020/09/29
- [Bug 1897680] Re: memory address over 0x2000_7ffc is not accessible in mps2-an505, Peter Maydell, 2020/09/29
- [Bug 1897680] Re: memory address over 0x2000_7ffc is not accessible in mps2-an505, Peter Maydell, 2020/09/29
- Re: [Bug 1897680] Re: memory address over 0x2000_7ffc is not accessible in mps2-an505,
Changho Choi <=
- Re: [Bug 1897680] [NEW] memory address over 0x2000_7ffc is not accessible in mps2-an505, Philippe Mathieu-Daudé, 2020/09/29
- [Bug 1897680] Re: memory address over 0x2000_7ffc is not accessible in mps2-an505, Peter Maydell, 2020/09/29