From e3a33fdf03ae06685422a0e3b526c08b85570f6a Mon Sep 17 00:00:00 2001
From: Ryan Yin <xiaoyin_c@qq.com>
Date: Wed, 24 Sep 2025 11:42:12 +0800
Subject: [PATCH] fix: podman cross platform - binfmt

---
 hosts/12kingdoms-shoukei/hardware-configuration.nix  | 4 ++++
 hosts/idols-ai/hardware-configuration.nix            | 4 ++++
 hosts/idols-ruby/default.nix                         | 4 ++++
 hosts/k8s/kubevirt-shoryu/hardware-configuration.nix | 5 -----
 4 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/hosts/12kingdoms-shoukei/hardware-configuration.nix b/hosts/12kingdoms-shoukei/hardware-configuration.nix
index 15b78834..a8ed6dc9 100644
--- a/hosts/12kingdoms-shoukei/hardware-configuration.nix
+++ b/hosts/12kingdoms-shoukei/hardware-configuration.nix
@@ -28,6 +28,10 @@ in
     "x86_64-linux"
     "riscv64-linux"
   ];
+  # This enables the kernel to preload the emulator binaries when the binfmt registrations are added,
+  # obviating the need to make the emulator binaries available inside chroots and chroot-like sandboxes.
+  boot.binfmt.preferStaticEmulators = true; # required to work with podman
+
   # supported file systems, so we can mount any removable disks with these filesystems
   boot.supportedFilesystems = lib.mkForce [
     "ext4"
diff --git a/hosts/idols-ai/hardware-configuration.nix b/hosts/idols-ai/hardware-configuration.nix
index 948a48b2..051db43e 100644
--- a/hosts/idols-ai/hardware-configuration.nix
+++ b/hosts/idols-ai/hardware-configuration.nix
@@ -43,6 +43,10 @@
     "aarch64-linux"
     "riscv64-linux"
   ];
+  # This enables the kernel to preload the emulator binaries when the binfmt registrations are added,
+  # obviating the need to make the emulator binaries available inside chroots and chroot-like sandboxes.
+  boot.binfmt.preferStaticEmulators = true; # required to work with podman
+
   # supported file systems, so we can mount any removable disks with these filesystems
   boot.supportedFilesystems = [
     "ext4"
diff --git a/hosts/idols-ruby/default.nix b/hosts/idols-ruby/default.nix
index 17ada8a6..1721285d 100644
--- a/hosts/idols-ruby/default.nix
+++ b/hosts/idols-ruby/default.nix
@@ -22,6 +22,10 @@ in {
     "aarch64-linux"
     "riscv64-linux"
   ];
+  # This enables the kernel to preload the emulator binaries when the binfmt registrations are added,
+  # obviating the need to make the emulator binaries available inside chroots and chroot-like sandboxes.
+  boot.binfmt.preferStaticEmulators = true; # required to work with podman
+
   # supported file systems, so we can mount any removable disks with these filesystems
   boot.supportedFilesystems = [
     "ext4"
diff --git a/hosts/k8s/kubevirt-shoryu/hardware-configuration.nix b/hosts/k8s/kubevirt-shoryu/hardware-configuration.nix
index 1db440cd..d69566d0 100644
--- a/hosts/k8s/kubevirt-shoryu/hardware-configuration.nix
+++ b/hosts/k8s/kubevirt-shoryu/hardware-configuration.nix
@@ -33,11 +33,6 @@
   ];
   boot.extraModprobeConfig = "options kvm_amd nested=1"; # for amd cpu
 
-  # Enable binfmt emulation of aarch64-linux, this is required for cross compilation.
-  boot.binfmt.emulatedSystems = [
-    "aarch64-linux"
-    "riscv64-linux"
-  ];
   # supported file systems, so we can mount any removable disks with these filesystems
   boot.supportedFilesystems = [
     "ext4"