Merge commit 'a343533bccc62400e8a9560423486a3b6c11a23b'

1 files changed, 10 insertions, 0 deletions

diff --git a/nixpkgs/nixos/doc/manual/development/running-nixos-tests.section.md b/nixpkgs/nixos/doc/manual/development/running-nixos-tests.section.md
index 33076f5dc2a7..b8191ebd313c 100644
--- a/nixpkgs/nixos/doc/manual/development/running-nixos-tests.section.md
+++ b/nixpkgs/nixos/doc/manual/development/running-nixos-tests.section.md
@@ -18,3 +18,13 @@ you can view a log of the test:
 ```ShellSession
 $ nix-store --read-log result
 ```
+
+## System Requirements {#sec-running-nixos-tests-requirements}
+
+NixOS tests require virtualization support.
+This means that the machine must have `kvm` in its [system features](https://nixos.org/manual/nix/stable/command-ref/conf-file.html?highlight=system-features#conf-system-features) list, or `apple-virt` in case of macOS.
+These features are autodetected locally, but `apple-virt` is only autodetected since Nix 2.19.0.
+
+Features of **remote builders** must additionally be configured manually on the client, e.g. on NixOS with [`nix.buildMachines.*.supportedFeatures`](https://search.nixos.org/options?show=nix.buildMachines.*.supportedFeatures&sort=alpha_asc&query=nix.buildMachines) or through general [Nix configuration](https://nixos.org/manual/nix/stable/advanced-topics/distributed-builds).
+
+If you run the tests on a **macOS** machine, you also need a "remote" builder for Linux; possibly a VM. [nix-darwin](https://daiderd.com/nix-darwin/) users may enable [`nix.linux-builder.enable`](https://daiderd.com/nix-darwin/manual/index.html#opt-nix.linux-builder.enable) to launch such a VM.