Re: [PATCH 1/8] build-system: clean up TCG/TCI configury
- To: Peter Maydell <peter.maydell@linaro.org>, Daniel P. Berrangé <berrange@redhat.com>
- Cc: Philippe Mathieu-Daudé <f4bug@amsat.org>, Aurelien Jarno <aurelien@aurel32.net>, Stefan Weil <sw@weilnetz.de>, John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>, debian-hppa@lists.debian.org, debian-superh@lists.debian.org, QEMU Developers <qemu-devel@nongnu.org>, Stefan Hajnoczi <stefanha@redhat.com>, Marc-André Lureau <marcandre.lureau@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Alex Bennée <alex.bennee@linaro.org>
- Subject: Re: [PATCH 1/8] build-system: clean up TCG/TCI configury
- From: Helge Deller <deller@gmx.de>
- Date: Wed, 13 Jan 2021 21:39:27 +0100
- Message-id: <[🔎] 2def24cf-1bc7-d4f3-8124-0ca8688c8a2c@gmx.de>
- In-reply-to: <[🔎] CAFEAcA8xTCq50bBZXams1ryzTkxNJq0M8WNnzcSGu=hJSnP+4Q@mail.gmail.com>
- References: <20210107140039.467969-1-pbonzini@redhat.com> <20210107140039.467969-2-pbonzini@redhat.com> <CAFEAcA9yyUUmd+hj6kgAV8KWtCC41Q55JRfE0q1zTaDaOofgOQ@mail.gmail.com> <a5cd4c43-2f12-2dbf-8db7-21acc7abc73d@redhat.com> <20210107160653.GD1029501@redhat.com> <[🔎] d1b5a493-0658-3bba-b1b4-0116f337031d@amsat.org> <[🔎] 46e79fb0-2ce1-35a8-3ce8-44699508a1d1@gmx.de> <[🔎] 20210113135705.GC1568240@redhat.com> <[🔎] CAFEAcA8xTCq50bBZXams1ryzTkxNJq0M8WNnzcSGu=hJSnP+4Q@mail.gmail.com>
On 1/13/21 3:23 PM, Peter Maydell wrote:
> On Wed, 13 Jan 2021 at 13:57, Daniel P. Berrangé <berrange@redhat.com> wrote:
>> The question still remains whether anyone is actually likely to be
>> running/using QEMU on a sh4/hppa *host*, to emulate a different
>> guest arch ? This is what that TCG interpreter provides for.
>> eg would anyone really want to emulate aarch64 guest when runing on
>> a hppa host ?
>
> If anybody does, they should provide and help us maintain
> an hppa backend for tcg (and resources so we can CI it).
My time is currently too limited to actually work on such a
backend, but out of couriosity, what hardware resources would be needed?
Is a login to a machine sufficient?
> TCI is going to be so slow as to be useless -- you might
> be able to tick a box saying "we built QEMU for this port"
> but I find it hard to believe anybody would actually use
> the result.
True. As I said in the other mail, it would be useful for small
tools/builds only.
Helge
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