From 2feb03b1ffc6084248814bc75f61dca80a718289 Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Wed, 28 Jan 2026 22:25:28 +0100 Subject: [PATCH] chapter 2: runtime services exist before ExitBootServices The UEFI runtime services (e.g. variable services) must be available both before and after ExitBootServices(). Only the virtual memory services are not supported before ExitBootServices(). Signed-off-by: Heinrich Schuchardt --- source/chapter2-uefi.rst | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/source/chapter2-uefi.rst b/source/chapter2-uefi.rst index 5dad316..42bcfb8 100644 --- a/source/chapter2-uefi.rst +++ b/source/chapter2-uefi.rst @@ -494,8 +494,8 @@ Secure Boot. There are no additional requirements for Secure Boot. UEFI Runtime Services ===================== -UEFI runtime services exist after the call to `ExitBootServices()` and are -designed to provide a limited set of persistent services to the platform +UEFI runtime services remain available after the call to `ExitBootServices()` +and are designed to provide a limited set of persistent services to the platform Operating System or hypervisor. Functions contained in `EFI_RUNTIME_SERVICES` are expected to be available during both boot services and runtime services.