Gentoo Archives: gentoo-user

From: Ian Zimmerman <itz@××××××××××××.org>
To: gentoo-user@l.g.o
Subject: [gentoo-user] mostly OT: qemu sparc64 emulation
Date: Mon, 30 Oct 2017 15:44:07
Message-Id: 20171030154350.lw6iic6e5wd2ujlt@matica.foolinux.mooo.com
1 I built the gentoo qemu package [1] with support for a couple of non-x86
2 arches. Trying the sparc64 one, I installed FreeBSD-11.1 into it. It
3 kind of works, but:
4
5 1. It's very slow - I estimate about 5x-10x slower than an emulated x86_64,
6 also running FreeBSD-11.1.
7
8 2. 1 processor on the host (a 4-way Phenom) is always at 100%, even
9 when the guest is completely idle. This makes me think there is a
10 virtual interrupt line that is always on, and this probably is the cause
11 of #1. Again, this doesn't happen when the guest CPU is x86_64.
12
13 3. There is no emulated network device. This could be related to the
14 ne2k_pci issue mentioned at [2]. I'd be willing to debug this, _if_ it
15 were not for #1 and #2 ...
16
17 anyone has a guess what is happening here?
18
19 [1]
20 the one in gentoo "stable" i.e. app-emulation/qemu-2.10.0
21
22 [2]
23 https://wiki.qemu.org/Documentation/Platforms/SPARC
24
25 --
26 Please don't Cc: me privately on mailing lists and Usenet,
27 if you also post the followup to the list or newsgroup.
28 Do obvious transformation on domain to reply privately _only_ on Usenet.

Replies

Subject Author
Re: [gentoo-user] mostly OT: qemu sparc64 emulation Walter Dnes <waltdnes@××××××××.org>
Re: [gentoo-user] mostly OT: qemu sparc64 emulation R0b0t1 <r030t1@×××××.com>