Hi,
In the Qemu monitor:
(qemu) info qom-tree
/machine (vcpu-machine)
/peripheral (container)
/peripheral-anon (container)
/unattached (container)
/sysbus (System)
and
(qemu) info qtree
bus: main-system-bus
type System
dev: vcpu-control, id ""
chardev_out = "serial0"
chardev_in = ""
...
dev: armv7m, id ""
gpio-in "NMI" 1
gpio-out "SYSRESETREQ" 1
gpio-in "" 64
cpu-type = "cortex-m3-arm-cpu"
memory = "/machine/unattached/system[0]"
idau = ""
init-svtor = 0 (0x0)
enable-bitband = false
start-powered-off = false
vfp = true
dsp = true
dev: ARM,bitband-memory, id ""
base = 0 (0x0)
source-memory = ""
mmio ffffffffffffffff/0000000002000000
dev: ARM,bitband-memory, id ""
base = 0 (0x0)
source-memory = ""
mmio ffffffffffffffff/0000000002000000
dev: armv7m_nvic, id ""
gpio-in "systick-trigger" 2
gpio-out "sysbus-irq" 1
num-irq = 80 (0x50)
mmio ffffffffffffffff/0000000000001000
dev: armv7m_systick, id ""
gpio-out "sysbus-irq" 1
mmio ffffffffffffffff/00000000000000e0
What does this "Unattached" mean here?
BR.
Abhijeet.
On Wed, Dec 8, 2021 at 11:37 PM abhijeet inamdar <
abhijeetinamdar3...@gmail.com> wrote:
> How important are these lines
> https://github.com/qemu/qemu/blob/stable-4.2/target/arm/cpu.c#L1928-#L1929
> .
>
> Anyways I will use the newer Qemu but curious was this a problem in my
> building?
> Please let me know so that I can move forward. It's really important for
> me.
>
> BR.
> Abhijeet.
>
> On Wed, Dec 8, 2021 at 3:11 PM abhijeet inamdar <
> abhijeetinamdar3...@gmail.com> wrote:
>
>> I will look into the latest one. Can you elaborate on that please!
>>
>> And I'm running a test.elf for the similar machine which I'm building. It
>> runs test only if the given size of the flash and RAM are double of the
>> required/being used size. How? Is there any offset kind of thing that needs
>> to be changed or I wandering I'm doing something wrong?
>>
>> BR.
>> Abhijeet.
>>
>> On Wed, 8 Dec, 2021, 12:30 Peter Maydell, <peter.mayd...@linaro.org>
>> wrote:
>>
>>> On Wed, 8 Dec 2021 at 10:45, abhijeet inamdar
>>> <abhijeetinamdar3...@gmail.com> wrote:
>>> >
>>> > Hi,
>>> >
>>> > Are these lines to be changed accordingly for my compatible
>>> https://github.com/qemu/qemu/blob/stable-4.2/target/arm/helper.c#L9842-#L9852
>>> or is it fixed?
>>>
>>> Those lines aren't board-specific, they are an
>>> architectural requirement on the CPU. They set up the
>>> default memory permissions (executable or not) when the
>>> MPU is disabled.
>>>
>>> Also, you're looking at QEMU 4.2 there, which is now
>>> pretty old. If you're actively developing a new board
>>> model, use the most recent QEMU at least, and preferably
>>> head-of-git.
>>>
>>> thanks
>>> -- PMM
>>>
>>
