Commit Graph

14 Commits

Author SHA1 Message Date
Matthew Bauer
47b56e7c19 runInLinuxVM, test-driver: use -cpu max instead of -cpu host
This appears to avoid requiring KVM when it’s not available. This is
what I originally though -cpu host did. Unfortunately not much
documentation available from the QEMU side on this, but this appears
to square with help:

$ qemu-system-x86 -cpu help
...
x86 host                  KVM processor with all supported host features
x86 max                   Enables all features supported by the accelerator in the current host
...

Whether we actually want to support this not clear, since this only
happens when your CPU doesn’t have full KVM support. Some Nix builders
are lying about kvm support though. Things aren’t too slow without it
though.

Fixes https://github.com/NixOS/nixpkgs/issues/85394

Alternative to https://github.com/NixOS/nixpkgs/pull/83920
2020-08-21 23:42:07 -05:00
Bas van Dijk
6e7822b8f3 lib: toHex -> toHexString & toBase -> toBaseDigits
This makes the type of these functions more apparent from the name.
2020-07-20 13:14:19 +02:00
Bas van Dijk
e15815e885 nixos/tests/networking.nix: test the services.dhcpd4.machines option
This modifies the `router` to not give out a range of IP addresses but
only give out a fixed address based on the MAC address using the
`services.dhcpd4.machines` option.

To get access to the MAC address the `qemuNicMac` function is defined
and exported from `qemu-flags.nix`.
2020-07-20 13:09:27 +02:00
Bas van Dijk
0410f5dff9 nixos/tests: support up to 255 nodes in NixOS tests 2020-07-20 13:09:27 +02:00
volth
2bd296a7e9 runInLinuxVM, test-driver: pass host's cpu type to guest vm
'kvm64' is the most generic CPU, which does not support SSE4.2, AVX and other ISA extentions.
2020-01-15 23:35:00 +00:00
volth
35d68ef143 treewide: remove redundant quotes 2019-08-26 21:40:19 +00:00
John Ericson
2c2f1e37d4 reewide: Purge all uses stdenv.system and top-level system
It is deprecated and will be removed after 18.09.
2018-08-30 17:20:32 -04:00
volth
341250fa10 qemu: 2.12.1 -> 3.0.0 2018-08-20 22:02:02 +00:00
Matthew Bauer
753c63dbc1 qemu-flags: default to qemu-kvm
this is the "generic" version & should work everywhere.

also add darwin case
2018-05-31 12:34:15 -04:00
John Ericson
ba52ae5048 treewide: isArm -> isAarch32
Following legacy packing conventions, `isArm` was defined just for
32-bit ARM instruction set. This is confusing to non packagers though,
because Aarch64 is an ARM instruction set.

The official ARM overview for ARMv8[1] is surprisingly not confusing,
given the overall state of affairs for ARM naming conventions, and
offers us a solution. It divides the nomenclature into three levels:

```
ISA:             ARMv8   {-A, -R, -M}
                 /    \
Mode:     Aarch32     Aarch64
             |         /   \
Encoding:   A64      A32   T32
```

At the top is the overall v8 instruction set archicture. Second are the
two modes, defined by bitwidth but differing in other semantics too, and
buttom are the encodings, (hopefully?) isomorphic if they encode the
same mode.

The 32 bit encodings are mostly backwards compatible with previous
non-Thumb and Thumb encodings, and if so we can pun the mode names to
instead mean "sets of compatable or isomorphic encodings", and then
voilà we have nice names for 32-bit and 64-bit arm instruction sets
which do not use the word ARM so as to not confused either laymen or
experienced ARM packages.

[1]: https://developer.arm.com/products/architecture/a-profile
2018-04-25 15:28:55 -04:00
Tuomas Tynkkynen
71631a922b runInLinuxVM: Use QEMU command line that works on other architectures
... by moving the existing definition to qemu-flags.nix and reusing
that.
2018-01-30 16:57:27 +02:00
Tuomas Tynkkynen
8e83158f12 nixos/qemu: Deduplicate QEMU serialDevice into qemu-flags.nix 2018-01-30 16:57:27 +02:00
Tuomas Tynkkynen
1ce1380497 nixos/qemu-flags: Take a 'pkgs' parameter
I'm gonna use it in the next commit.
2018-01-30 16:57:27 +02:00
Eelco Dolstra
5c1f8cbc70 Move all of NixOS to nixos/ in preparation of the repository merge 2013-10-10 13:28:20 +02:00