diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix index 1466b51b261..a5bf51cb84c 100644 --- a/pkgs/os-specific/linux/kernel/common-config.nix +++ b/pkgs/os-specific/linux/kernel/common-config.nix @@ -687,6 +687,14 @@ let HOTPLUG_PCI_ACPI = yes; # PCI hotplug using ACPI HOTPLUG_PCI_PCIE = yes; # PCI-Expresscard hotplug support + # Enable memory hotplug support + # Allows you to dynamically add & remove memory to a VM client running NixOS without requiring a reboot + ACPI_HOTPLUG_MEMORY = yes; + MEMORY_HOTPLUG = yes; + MEMORY_HOTREMOVE = yes; + MIGRATION = yes; + SPARSEMEM = yes; + } // optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux" || stdenv.hostPlatform.system == "aarch64-linux") { # Bump the maximum number of CPUs to support systems like EC2 x1.* # instances and Xeon Phi.