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Re: [Qemu-ppc] [Qemu-devel] [PULL 095/107] spapr: clock should count onl
From: |
Laurent Vivier |
Subject: |
Re: [Qemu-ppc] [Qemu-devel] [PULL 095/107] spapr: clock should count only if vm is running |
Date: |
Thu, 2 Feb 2017 10:13:16 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.6.0 |
On 02/02/2017 09:37, Mark Cave-Ayland wrote:
> On 02/02/17 05:14, David Gibson wrote:
>
...
> Hi David/Laurent,
Hi Mark,
> I just noticed this in your pull request today - this looks like it is
> along similar lines to the prototype patch I proposed last year as part
> of the decrementer migration thread discussion, i.e. use a
> vm_change_state_handler() to sync the clock on pause/resume.
>
> Am I right in thinking this now solves the timebase migration problem,
> and so the only part required is to encode the decrementer relative to
> the timebase during migration to ensure its value is also migrated
> correctly?
Do you have a link to this thread discussion?
The main purpose of this patch was only to stop the clock (TBR) while
the machine is paused, so I'd like to know what is the problem you are
speaking about.
Thanks,
Laurent
- [Qemu-ppc] [PULL 088/107] target-ppc: Add xscvsdqp and xscvudqp instructions, (continued)
- [Qemu-ppc] [PULL 088/107] target-ppc: Add xscvsdqp and xscvudqp instructions, David Gibson, 2017/02/02
- [Qemu-ppc] [PULL 102/107] target/ppc/debug: Print LPCR register value if register exists, David Gibson, 2017/02/02
- [Qemu-ppc] [PULL 077/107] target-ppc: Add xviexpsp instruction, David Gibson, 2017/02/02
- [Qemu-ppc] [PULL 090/107] target-ppc: Add xsmulqp instruction, David Gibson, 2017/02/02
- [Qemu-ppc] [PULL 100/107] target-ppc: Add xvtstdc[sp, dp] instructions, David Gibson, 2017/02/02
- [Qemu-ppc] [PULL 086/107] ppc: Implement bcdutrunc. instruction, David Gibson, 2017/02/02
- [Qemu-ppc] [PULL 089/107] target-ppc: Add xsdivqp instruction, David Gibson, 2017/02/02
- [Qemu-ppc] [PULL 080/107] target-ppc: Add xvxexpdp instruction, David Gibson, 2017/02/02
- [Qemu-ppc] [PULL 095/107] spapr: clock should count only if vm is running, David Gibson, 2017/02/02
- Re: [Qemu-ppc] [Qemu-devel] [PULL 095/107] spapr: clock should count only if vm is running, Mark Cave-Ayland, 2017/02/02
- Re: [Qemu-ppc] [Qemu-devel] [PULL 095/107] spapr: clock should count only if vm is running,
Laurent Vivier <=
- Re: [Qemu-ppc] [Qemu-devel] [PULL 095/107] spapr: clock should count only if vm is running, Mark Cave-Ayland, 2017/02/02
- Re: [Qemu-ppc] [Qemu-devel] [PULL 095/107] spapr: clock should count only if vm is running, Laurent Vivier, 2017/02/02
- Re: [Qemu-ppc] [Qemu-devel] [PULL 095/107] spapr: clock should count only if vm is running, Mark Cave-Ayland, 2017/02/02
- Re: [Qemu-ppc] [Qemu-devel] [PULL 095/107] spapr: clock should count only if vm is running, Laurent Vivier, 2017/02/07
- Re: [Qemu-ppc] [Qemu-devel] [PULL 095/107] spapr: clock should count only if vm is running, Mark Cave-Ayland, 2017/02/09
- Re: [Qemu-ppc] [Qemu-devel] [PULL 095/107] spapr: clock should count only if vm is running, Laurent Vivier, 2017/02/09
- [Qemu-ppc] [PULL 078/107] target-ppc: Add xviexpdp instruction, David Gibson, 2017/02/02
- [Qemu-ppc] [PULL 081/107] target-ppc: Add xvxsigsp instruction, David Gibson, 2017/02/02
- [Qemu-ppc] [PULL 084/107] ppc/prep: update MAINTAINERS file, David Gibson, 2017/02/02
- [Qemu-ppc] [PULL 085/107] ppc: Implement bcdtrunc. instruction, David Gibson, 2017/02/02