buffer etc.) ?
Other parameters are deterministic in record/replay case, because they
are generated by the guest code.
Best Regards,
Arnabjyoti Kalita
On Fri, Aug 13, 2021 at 7:47 PM Pavel Dovgalyuk
wrote:
On 13.08.2021 08:53, Arnabjyoti Kalita wrote:
Hello all,
I am trying to use
On 13.08.2021 08:53, Arnabjyoti Kalita wrote:
Hello all,
I am trying to use the blkreplay driver to record and replay disk
operations. My disk record and replay mechanism is a variant of the
inbuilt record replay mechanism in QEMU.
During record, I just store the completion ids of the disk
On 05.08.2021 09:06, Arnabjyoti Kalita wrote:
Hello all,
I was following the docs on QEMU replay
(https://github.com/qemu/qemu/blob/master/docs/replay.txt) and I had a
few questions about the implementation of block I/O record and replay
in QEMU.
All my questions are numbered. And for context,
On 07.06.2021 05:59, Arnabjyoti Kalita wrote:
Hello all,
I am trying to use the "blkreplay" filter to record and replay block I/O
operations. Whenever I get a disk interrupt, I'm planning to replay the
disk operation basically. You can assume that I know when the disk
interrupt happened when
of the HPET clocks would be
deterministic? Do you see any other potential causes of concern?
Right, I don't see any other issues.
Best Regards,
Arnabjyoti Kalita
On Mon, May 17, 2021 at 1:05 PM Pavel Dovgalyuk
wrote:
On 14.05.2021 06:30, Arnabjyoti Kalita wrote:
Hello all,
I am recording
On 14.05.2021 06:30, Arnabjyoti Kalita wrote:
Hello all,
I am recording and replaying HPET timer values for my guest.
I am running QEMU version 5.0.1. The guest kernel is a
4.4.0-21-generic Ubuntu flavor. The host and target architecture is
both x86-64.
To record, I start QEMU in KVM mode as
/replay includes
additional synchronization for them.
Pavel Dovgalyuk
?
Checkpoints are related to QEMU threads, not guest threads.
Timers are needed for virtual devices, that can generate interrupts, DMA
requests and so on. Therefore we synchronize them with vCPU to make
execution deterministic.
Pavel Dovgalyuk
in TCG mode?
This clock is used for icount-related timers. For now icount is required
for record replay. If you want to replay only host clock, you don't need
this one.
Pavel Dovgalyuk
Thanks for reporting, we'll fix this in the next iteration of patches.
Pavel Dovgalyuk
> -Original Message-
> From: Alberto Garcia [mailto:be...@igalia.com]
> Sent: Saturday, October 28, 2017 10:56 PM
> To: Akiv Jhirad; qemu-discuss@nongnu.org; Pavel Dovgalyuk
> Subject
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