Cc'ing plugin experts
On 5/4/25 13:25, Yannis Bolliger via wrote:
> Hi everyone,
I am using the execlog plugin to generate a trace of memory accesses, in
particular I am interested in the physical RAM addresses.
Now I'd like to identify which of these memory accesses are related to a
kernel buffer -> user buffer copy operation.
To that end I am logging the physical addresses as obtained by
page_to_phys (+ the offset of the RAM in the memory map) in the kernel
before the copy is done.
I'd expect to find memory accesses in my trace that go to the buffer
addresses I logged in the kernel, but I cannot find any.
Is it possible to correlate these addresses? What do I need to look out
for?
I may have a wrong understanding of how things work.
Any help is appreciated,
Yannis
Some background info:
* qemu-system-aarch64 on an x86_64 host.
* android kernel (cuttlefish)
