Re: QEMU Clock record and replay

2021-02-25 Thread Arnabjyoti Kalita
Thank you Alex for such a detailed answer. It explains a lot of aspects about the QEMU timer and icount features. Let's say we start a guest in KVM mode, save its state and then allow the guest to continue. Now, let's say we load the 'saved' guest in TCG mode. I am looking for a way to ensure that

Re: QEMU Clock record and replay

2021-02-25 Thread Arnabjyoti Kalita
Thank you Lukas for your answer. I was only looking to record and replay host clock values (not any other events), i.e. record in KVM mode and replay in TCG mode. Best Regards, Arnab On Thu, Feb 25, 2021 at 10:00 PM Lukas Straub wrote: > On Thu, 25 Feb 2021 20:39:20 +0530 > Arnabjyoti Kalita

Re: Possible GPL violation on Mac App Store

2021-02-25 Thread Pranith Kumar
On Thu, Feb 25, 2021 at 1:24 AM garpin wrote: > Someone is distributing an app called "UTM Virtual Machines" based on QEMU > on Mac App Store [1]. Mac App Store has EULA, which is not compatible with > GPL [2]. Apple's EULA imposes restrictions to users' rights, for instance > it forbids reverse

Re: Possible GPL violation on Mac App Store

2021-02-25 Thread Alex Bennée
garpin writes: > Someone is distributing an app called "UTM Virtual Machines" based on QEMU on > Mac App Store [1]. Mac App Store has EULA, which is not compatible with GPL > [2]. Apple's EULA imposes restrictions to users' rights, for instance it > forbids reverse engineering. That contradi

Re: QEMU Clock record and replay

2021-02-25 Thread Alex Bennée
Arnabjyoti Kalita writes: > Hello all, > > I am trying to understand how the clock values are recorded and replayed in > QEMU (when it runs in TCG mode). I have been specifically following the > document that has been provided here - > https://github.com/qemu/qemu/blob/master/docs/replay.txt >

Re: QEMU Clock record and replay

2021-02-25 Thread Lukas Straub
On Thu, 25 Feb 2021 20:39:20 +0530 Arnabjyoti Kalita wrote: > Hello all, > > [...] > > - Let's say we record the clock values when the guest starts in KVM mode, > and we replay the clock values when the guest starts in TCG mode. Does the > record-replay functionality change a lot? Record-replay

Re: QEMU Clock record and replay

2021-02-25 Thread Philippe Mathieu-Daudé
Cc'ing Pavel/Alex. On 2/25/21 4:09 PM, Arnabjyoti Kalita wrote: > Hello all, > > I am trying to understand how the clock values are recorded and replayed > in QEMU (when it runs in TCG mode). I have been specifically following > the document that has been provided here - > https://github.com/qemu

QEMU Clock record and replay

2021-02-25 Thread Arnabjyoti Kalita
Hello all, I am trying to understand how the clock values are recorded and replayed in QEMU (when it runs in TCG mode). I have been specifically following the document that has been provided here - https://github.com/qemu/qemu/blob/master/docs/replay.txt I have the following 4 questions to ask-

RE: Optimized clocksource with AMD AVIC enabled for Windows guest

2021-02-25 Thread Vitaly Kuznetsov
Kechen Lu writes: > Hi Vitaly and Paolo, > > Sorry for the delay in response, finally got chance to access a machine with > AVIC, and was able to test out the patch and reconfirm through some > benchmarks and tests again today:) > > In summary, this patch works well and resolves the issues o

Possible GPL violation on Mac App Store

2021-02-25 Thread garpin
Someone is distributing an app called "UTM Virtual Machines" based on QEMU on Mac App Store [1]. Mac App Store has EULA, which is not compatible with GPL [2]. Apple's EULA imposes restrictions to users' rights, for instance it forbids reverse engineering. That contradicts GPL #6: "You may not im