Peter -
Thanks for the clarification, that makes perfect sense.
In this case, using GDB is clearly the best way to go about the tracing.
I appreciate your time!
-S
On Thu, Jun 24, 2021 at 1:51 PM Peter Maydell
wrote:
> On Thu, 24 Jun 2021 at 18:09, Steven Raasch wrote:
> > NOTE: I do not ye
On Thu, 24 Jun 2021 at 18:09, Steven Raasch wrote:
> NOTE: I do not yet understand how gdb interacts with the virtual machine. I
> have experience with GDB, but only at a linux app-debug level. I don't grok
> how gdb on a linux host works with QEMU running a windows guest.
> My *assumption* is t
Understood with your KVM/TCG snapshot comment. I thought it was worth a try.
NOTE: I do not yet understand how gdb interacts with the virtual machine. I
have experience with GDB, but only at a linux app-debug level. I don't grok
how gdb on a linux host works with QEMU running a windows guest.
My *
On Wed, 23 Jun 2021 at 22:10, Steven Raasch wrote:
> I have used KVM to create a snapshot of a windows-10 guest running a
> graphics-intensive app. The *original* issue is that the app does not execute
> correctly when re-started from the snapshot using TCG (it doesn't crash, but
> it doesn't r
I see. I haven't encountered the corrupted RIP problem you described -
maybe someone else has seen it.
Even if the overhead of the gdb ipc is prohibitive, looking at gdbstub.c
might be useful for comparing with your tracing code. Under the hood,
the gdb stub is calling the same cpu_single_step fun
Alex -
Our application is similar to a high-end game in that it adjusts it's
code-path depending on how "fast" it is running. Our previous attempts to
trace it's execution have run into issues due to the overhead of the trace
collection.
My hope had been that by using QEMU, I could control the "h
On 210623 1514, Steven Raasch wrote:
> Hi -
>
> I'm trying to create a hack that will allow me to extract an instruction
> trace from QEMU/KVM (i386). The KVM part is important (see below).
>
> Background:
>
>- I have used KVM to create a snapshot of a windows-10 guest running a
>graphic
Hi -
I'm trying to create a hack that will allow me to extract an instruction
trace from QEMU/KVM (i386). The KVM part is important (see below).
Background:
- I have used KVM to create a snapshot of a windows-10 guest running a
graphics-intensive app. The *original* issue is that the app d
