From ab72035bb706847b360925dbd5aec9897e49227a Mon Sep 17 00:00:00 2001
From: Yuka <yuka@yuka.dev>
Date: Sat, 21 May 2022 11:24:16 +0200
Subject: [PATCH] qemu: add workaround for nested virtualisation (#171789)

---
 pkgs/applications/virtualization/qemu/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/applications/virtualization/qemu/default.nix b/pkgs/applications/virtualization/qemu/default.nix
index 9f9b0389ced..a481b50f3e1 100644
--- a/pkgs/applications/virtualization/qemu/default.nix
+++ b/pkgs/applications/virtualization/qemu/default.nix
@@ -103,6 +103,12 @@ stdenv.mkDerivation rec {
       sha256 = "sha256-gTRf9XENAfbFB3asYCXnw4OV4Af6VE1W56K2xpYDhgM=";
       revert = true;
     })
+    # Workaround for upstream issue with nested virtualisation: https://gitlab.com/qemu-project/qemu/-/issues/1008
+    (fetchpatch {
+      url = "https://gitlab.com/qemu-project/qemu/-/commit/3e4546d5bd38a1e98d4bd2de48631abf0398a3a2.diff";
+      sha256 = "sha256-oC+bRjEHixv1QEFO9XAm4HHOwoiT+NkhknKGPydnZ5E=";
+      revert = true;
+    })
     # make nixos tests that boot from USB more stable
     # https://lists.nongnu.org/archive/html/qemu-devel/2022-05/msg01484.html
     (fetchpatch {