Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-04-05 Thread Mark Cave-Ayland
On 04/04/2023 15:00, Thomas Huth wrote: On 05/02/2023 23.12, Mark Cave-Ayland wrote: On 30/01/2023 20:45, Alex Bennée wrote: Daniel P. Berrangé writes: On Mon, Jan 30, 2023 at 11:47:02AM +, Peter Maydell wrote: On Mon, 30 Jan 2023 at 11:44, Thomas Huth wrote: Testing 32-bit host OS

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-04-05 Thread Thomas Huth
On 05/04/2023 13.54, BALATON Zoltan wrote: On Wed, 5 Apr 2023, Thomas Huth wrote: On 04/04/2023 17.42, BALATON Zoltan wrote: On Tue, 4 Apr 2023, Cédric Le Goater wrote: [ adding Zoltan ] On 4/4/23 16:00, Thomas Huth wrote: On 05/02/2023 23.12, Mark Cave-Ayland wrote: On 30/01/2023 20:45, Al

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-04-05 Thread BALATON Zoltan
On Wed, 5 Apr 2023, Thomas Huth wrote: On 04/04/2023 17.42, BALATON Zoltan wrote: On Tue, 4 Apr 2023, Cédric Le Goater wrote: [ adding Zoltan ] On 4/4/23 16:00, Thomas Huth wrote: On 05/02/2023 23.12, Mark Cave-Ayland wrote: On 30/01/2023 20:45, Alex Bennée wrote: Daniel P. Berrangé write

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-04-05 Thread Thomas Huth
On 04/04/2023 17.42, BALATON Zoltan wrote: On Tue, 4 Apr 2023, Cédric Le Goater wrote: [ adding Zoltan ] On 4/4/23 16:00, Thomas Huth wrote: On 05/02/2023 23.12, Mark Cave-Ayland wrote: On 30/01/2023 20:45, Alex Bennée wrote: Daniel P. Berrangé writes: On Mon, Jan 30, 2023 at 11:47:02AM

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-04-04 Thread BALATON Zoltan
On Tue, 4 Apr 2023, Cédric Le Goater wrote: Unrelated to KVM: Do you happen to know whether there are any problems when running 32-bit guests with TCG with the mac99 or g3beige machine while using qemu-system-ppc64 ? We removed rfi support for 64bit machine in QEMU 2.7. Commit a2e71b28e8 ("pp

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-04-04 Thread BALATON Zoltan
On Tue, 4 Apr 2023, Thomas Huth wrote: On 05/02/2023 23.12, Mark Cave-Ayland wrote: On 30/01/2023 20:45, Alex Bennée wrote: Daniel P. Berrangé writes: On Mon, Jan 30, 2023 at 11:47:02AM +, Peter Maydell wrote: On Mon, 30 Jan 2023 at 11:44, Thomas Huth wrote: Testing 32-bit host OS s

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-04-04 Thread BALATON Zoltan
On Tue, 4 Apr 2023, Cédric Le Goater wrote: [ adding Zoltan ] On 4/4/23 16:00, Thomas Huth wrote: On 05/02/2023 23.12, Mark Cave-Ayland wrote: On 30/01/2023 20:45, Alex Bennée wrote: Daniel P. Berrangé writes: On Mon, Jan 30, 2023 at 11:47:02AM +, Peter Maydell wrote: On Mon, 30 Jan

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-04-04 Thread Cédric Le Goater
[ adding Zoltan ] On 4/4/23 16:00, Thomas Huth wrote: On 05/02/2023 23.12, Mark Cave-Ayland wrote: On 30/01/2023 20:45, Alex Bennée wrote: Daniel P. Berrangé writes: On Mon, Jan 30, 2023 at 11:47:02AM +, Peter Maydell wrote: On Mon, 30 Jan 2023 at 11:44, Thomas Huth wrote: Testing

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-04-04 Thread Cédric Le Goater
Unrelated to KVM: Do you happen to know whether there are any problems when running 32-bit guests with TCG with the mac99 or g3beige machine while using qemu-system-ppc64 ? We removed rfi support for 64bit machine in QEMU 2.7. Commit a2e71b28e8 ("ppc: Fix rfi/rfid/hrfi/... emulation"). So a m

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-04-04 Thread Thomas Huth
On 05/02/2023 23.12, Mark Cave-Ayland wrote: On 30/01/2023 20:45, Alex Bennée wrote: Daniel P. Berrangé writes: On Mon, Jan 30, 2023 at 11:47:02AM +, Peter Maydell wrote: On Mon, 30 Jan 2023 at 11:44, Thomas Huth wrote: Testing 32-bit host OS support takes a lot of precious time duri

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-22 Thread Alex Bennée
Reinoud Zandijk writes: > On Wed, Feb 22, 2023 at 09:51:57AM +, Daniel P. Berrangé wrote: >> On Wed, Feb 22, 2023 at 09:11:13AM +, Bernhard Beschow wrote: >> > Are there any plans or ideas to support 128 bit architectures >> > such as CHERI in the future? There is already a QEMU fork >>

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-22 Thread Reinoud Zandijk
On Wed, Feb 22, 2023 at 09:51:57AM +, Daniel P. Berrangé wrote: > On Wed, Feb 22, 2023 at 09:11:13AM +, Bernhard Beschow wrote: > > Are there any plans or ideas to support 128 bit architectures > > such as CHERI in the future? There is already a QEMU fork > > implementing CHERI for RISC V [

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-22 Thread Daniel P . Berrangé
On Wed, Feb 22, 2023 at 09:11:13AM +, Bernhard Beschow wrote: > > > Am 30. Januar 2023 20:45:47 UTC schrieb "Alex Bennée" > : > > > >Daniel P. Berrangé writes: > > > >> On Mon, Jan 30, 2023 at 11:47:02AM +, Peter Maydell wrote: > >>> On Mon, 30 Jan 2023 at 11:44, Thomas Huth wrote: > >

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-22 Thread Bernhard Beschow
Am 30. Januar 2023 20:45:47 UTC schrieb "Alex Bennée" : > >Daniel P. Berrangé writes: > >> On Mon, Jan 30, 2023 at 11:47:02AM +, Peter Maydell wrote: >>> On Mon, 30 Jan 2023 at 11:44, Thomas Huth wrote: >>> > >>> > Testing 32-bit host OS support takes a lot of precious time during the >>>

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-19 Thread Stefan Weil via
Am 19.02.23 um 12:27 schrieb Reinoud Zandijk: On Fri, Feb 17, 2023 at 12:05:46PM +0100, Stefan Weil wrote: So there still seems to be a certain small need for QEMU installers for 32-bit Windows: 170 users für 32 bit only, 339 users for both 32 and 64 bit, 5132 users for 64 bit only. As you see

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-19 Thread Reinoud Zandijk
On Fri, Feb 17, 2023 at 12:05:46PM +0100, Stefan Weil wrote: > On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: > > > Which 32-bit hosts are still useful, and why? > > Citing my previous mail: > >I now checked all downloads of the latests installers since 2022-12-30. > >

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-19 Thread Reinoud Zandijk
On Fri, Feb 17, 2023 at 08:22:43AM -1000, Richard Henderson wrote: > On 2/17/23 06:06, Reinoud Zandijk wrote: > > On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: > > > I feel the discussion petered out without a conclusion. > > > > > > I don't think letting the status quo win by

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-18 Thread Jiaxun Yang
在2023年2月17日二月 下午6:57,Thomas Huth写道: > On 17/02/2023 18.43, Philippe Mathieu-Daudé wrote: >> (Cc'ing Huacai & Jiaxun). >> >> On 17/2/23 17:38, Paolo Bonzini wrote: >>> On 2/17/23 11:47, Daniel P. Berrangé wrote: On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: > I feel

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Thomas Huth
On 17/02/2023 17.38, Paolo Bonzini wrote: On 2/17/23 11:47, Daniel P. Berrangé wrote: On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: I feel the discussion petered out without a conclusion. I don't think letting the status quo win by inertia is a good outcome here. Which 32

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Thomas Huth
On 17/02/2023 18.43, Philippe Mathieu-Daudé wrote: (Cc'ing Huacai & Jiaxun). On 17/2/23 17:38, Paolo Bonzini wrote: On 2/17/23 11:47, Daniel P. Berrangé wrote: On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: I feel the discussion petered out without a conclusion. I don't t

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Richard Henderson
On 2/17/23 06:06, Reinoud Zandijk wrote: On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: I feel the discussion petered out without a conclusion. I don't think letting the status quo win by inertia is a good outcome here. Which 32-bit hosts are still useful, and why? NetBSD

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Philippe Mathieu-Daudé
(Cc'ing Huacai & Jiaxun). On 17/2/23 17:38, Paolo Bonzini wrote: On 2/17/23 11:47, Daniel P. Berrangé wrote: On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: I feel the discussion petered out without a conclusion. I don't think letting the status quo win by inertia is a good

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Daniel P . Berrangé
On Fri, Feb 17, 2023 at 05:06:42PM +0100, Reinoud Zandijk wrote: > On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: > > I feel the discussion petered out without a conclusion. > > > > I don't think letting the status quo win by inertia is a good outcome > > here. > > > > Which 3

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Paolo Bonzini
On 2/17/23 11:47, Daniel P. Berrangé wrote: On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: I feel the discussion petered out without a conclusion. I don't think letting the status quo win by inertia is a good outcome here. Which 32-bit hosts are still useful, and why? Whi

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Reinoud Zandijk
On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: > I feel the discussion petered out without a conclusion. > > I don't think letting the status quo win by inertia is a good outcome > here. > > Which 32-bit hosts are still useful, and why? NetBSD runs on a bunch of 32 bit-only h

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Daniel P . Berrangé
On Fri, Feb 17, 2023 at 12:05:46PM +0100, Stefan Weil wrote: > On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: > > > Which 32-bit hosts are still useful, and why? > > > Citing my previous mail: > >I now checked all downloads of the latests installers since 2022-12-30. >

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Markus Armbruster
Stefan Weil writes: > On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: > >> Which 32-bit hosts are still useful, and why? > > > Citing my previous mail: > >I now checked all downloads of the latests installers since 2022-12-30. > >qemu-w32-setup-20221230.exe – 509 differ

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Claudio Fontana
On 1/30/23 12:44, Thomas Huth wrote: > Testing 32-bit host OS support takes a lot of precious time during the QEMU > contiguous integration tests, and considering that many OS vendors stopped > shipping 32-bit variants of their OS distributions and most hardware from > the past >10 years is capable

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Stefan Weil via
On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: Which 32-bit hosts are still useful, and why? Citing my previous mail: I now checked all downloads of the latests installers since 2022-12-30. qemu-w32-setup-20221230.exe – 509 different IP addresses qemu-w64-setup-

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Daniel P . Berrangé
On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: > I feel the discussion petered out without a conclusion. > > I don't think letting the status quo win by inertia is a good outcome > here. > > Which 32-bit hosts are still useful, and why? Which 32-bit hosts does Linux still pro

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Claudio Fontana
On 2/17/23 11:36, Markus Armbruster wrote: > I feel the discussion petered out without a conclusion. > > I don't think letting the status quo win by inertia is a good outcome > here. > > Which 32-bit hosts are still useful, and why? Hi Markus, if the question is very very general, my opinion i

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Daniel P . Berrangé
On Fri, Feb 17, 2023 at 11:36:41AM +0100, Markus Armbruster wrote: > I feel the discussion petered out without a conclusion. > > I don't think letting the status quo win by inertia is a good outcome > here. > > Which 32-bit hosts are still useful, and why? > > Please note my question is not abou

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-17 Thread Markus Armbruster
I feel the discussion petered out without a conclusion. I don't think letting the status quo win by inertia is a good outcome here. Which 32-bit hosts are still useful, and why? Please note my question is not about the cost of keeping them (or savings from not keeping them), it's about the value

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-02-05 Thread Mark Cave-Ayland
On 30/01/2023 20:45, Alex Bennée wrote: Daniel P. Berrangé writes: On Mon, Jan 30, 2023 at 11:47:02AM +, Peter Maydell wrote: On Mon, 30 Jan 2023 at 11:44, Thomas Huth wrote: Testing 32-bit host OS support takes a lot of precious time during the QEMU contiguous integration tests, and

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-01-30 Thread Philippe Mathieu-Daudé
On 31/1/23 00:33, Richard Henderson wrote: On 1/30/23 13:14, Philippe Mathieu-Daudé wrote: On 30/1/23 20:19, Richard Henderson wrote: But I do question whether we need to support 64-bit guests on 32-bit hosts at all. Retaining 32-bit on 32-bit allows arm32 to emulate i686, which I suspect, bu

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-01-30 Thread Richard Henderson
On 1/30/23 13:14, Philippe Mathieu-Daudé wrote: On 30/1/23 20:19, Richard Henderson wrote: But I do question whether we need to support 64-bit guests on 32-bit hosts at all. Retaining 32-bit on 32-bit allows arm32 to emulate i686, which I suspect, but have no proof, is the limit of what users

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-01-30 Thread Philippe Mathieu-Daudé
On 30/1/23 20:19, Richard Henderson wrote: But I do question whether we need to support 64-bit guests on 32-bit hosts at all. Retaining 32-bit on 32-bit allows arm32 to emulate i686, which I suspect, but have no proof, is the limit of what users actually want. I presume you implicitly restric

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-01-30 Thread Alex Bennée
Daniel P. Berrangé writes: > On Mon, Jan 30, 2023 at 11:47:02AM +, Peter Maydell wrote: >> On Mon, 30 Jan 2023 at 11:44, Thomas Huth wrote: >> > >> > Testing 32-bit host OS support takes a lot of precious time during the QEMU >> > contiguous integration tests, and considering that many OS

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-01-30 Thread Richard Henderson
On 1/30/23 02:01, Daniel P. Berrangé wrote: I vaguely recall someone mentioned problems with atomic ops in the past, or was it 128-bit ints, caused implications for the codebase ? TCG_OVERSIZED_GUEST, where 32-bit host running 64-bit guest cannot run the guest except in round-robin mode. It's

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-01-30 Thread Thomas Huth
On 30/01/2023 13.43, Daniel P. Berrangé wrote: On Mon, Jan 30, 2023 at 01:22:22PM +0100, Thomas Huth wrote: On 30/01/2023 13.01, Daniel P. Berrangé wrote: On Mon, Jan 30, 2023 at 11:47:02AM +, Peter Maydell wrote: On Mon, 30 Jan 2023 at 11:44, Thomas Huth wrote: Testing 32-bit host OS s

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-01-30 Thread Daniel P . Berrangé
On Mon, Jan 30, 2023 at 01:22:22PM +0100, Thomas Huth wrote: > On 30/01/2023 13.01, Daniel P. Berrangé wrote: > > On Mon, Jan 30, 2023 at 11:47:02AM +, Peter Maydell wrote: > > > On Mon, 30 Jan 2023 at 11:44, Thomas Huth wrote: > > > > > > > > Testing 32-bit host OS support takes a lot of pre

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-01-30 Thread Thomas Huth
On 30/01/2023 13.01, Daniel P. Berrangé wrote: On Mon, Jan 30, 2023 at 11:47:02AM +, Peter Maydell wrote: On Mon, 30 Jan 2023 at 11:44, Thomas Huth wrote: Testing 32-bit host OS support takes a lot of precious time during the QEMU contiguous integration tests, and considering that many OS

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-01-30 Thread Daniel P . Berrangé
On Mon, Jan 30, 2023 at 11:47:02AM +, Peter Maydell wrote: > On Mon, 30 Jan 2023 at 11:44, Thomas Huth wrote: > > > > Testing 32-bit host OS support takes a lot of precious time during the QEMU > > contiguous integration tests, and considering that many OS vendors stopped > > shipping 32-bit v

Re: [RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-01-30 Thread Peter Maydell
On Mon, 30 Jan 2023 at 11:44, Thomas Huth wrote: > > Testing 32-bit host OS support takes a lot of precious time during the QEMU > contiguous integration tests, and considering that many OS vendors stopped > shipping 32-bit variants of their OS distributions and most hardware from > the past >10 y

[RFC PATCH] docs/about/deprecated: Deprecate 32-bit host systems

2023-01-30 Thread Thomas Huth
Testing 32-bit host OS support takes a lot of precious time during the QEMU contiguous integration tests, and considering that many OS vendors stopped shipping 32-bit variants of their OS distributions and most hardware from the past >10 years is capable of 64-bit, keeping the 32-bit support alive