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authorLudovic Courtès <ludo@gnu.org>2014-11-27 23:59:26 +0100
committerLudovic Courtès <ludo@gnu.org>2014-11-28 00:10:28 +0100
commit0e704a2d4ea9b65cde79240f4433296645c5a220 (patch)
treeed8e9489fdd5a8c547db6e59c924b75141424dae /gnu/build
parent600c285b6345d8b0cc04f9e92e47ad5bcd437948 (diff)
linux-boot: Load modules and their dependencies, à la 'modprobe'.
* gnu/build/linux-boot.scm: Use (gnu build linux-modules). (load-linux-module*): Remove. (boot-system): Add #:linux-module-directory parameter. [lookup-module]: New procedure. Call 'current-module-debugging-port'. Pass #:lookup-module to 'load-linux-module*'. Map LOOKUP-MODULE on LINUX-MODULES. * gnu/system/linux-initrd.scm (base-initrd): Adjust 'boot-system' call accordingly. Adjust #:modules argument as well. * gnu/system.scm (operating-system-activation-script)[%modules]: Likewise. * gnu/system/vm.scm (expression->derivation-in-linux-vm): Likewise.
Diffstat (limited to 'gnu/build')
-rw-r--r--gnu/build/linux-boot.scm30
1 files changed, 15 insertions, 15 deletions
diff --git a/gnu/build/linux-boot.scm b/gnu/build/linux-boot.scm
index 3bf3268b23..b2ed1a8b54 100644
--- a/gnu/build/linux-boot.scm
+++ b/gnu/build/linux-boot.scm
@@ -26,6 +26,7 @@
#:use-module (ice-9 match)
#:use-module (ice-9 ftw)
#:use-module (guix build utils)
+ #:use-module (gnu build linux-modules)
#:use-module (gnu build file-systems)
#:export (mount-essential-file-systems
linux-command-line
@@ -34,7 +35,6 @@
configure-qemu-networking
bind-mount
- load-linux-module*
device-number
boot-system))
@@ -218,14 +218,6 @@ networking values.) Return #t if INTERFACE is up, #f otherwise."
(logand (network-interface-flags sock interface) IFF_UP)))
-(define (load-linux-module* file)
- "Load Linux module from FILE, the name of a `.ko' file."
- (define (slurp module)
- ;; TODO: Use 'mmap' to reduce memory usage.
- (call-with-input-file file get-bytevector-all))
-
- (load-linux-module (slurp file)))
-
(define (device-number major minor)
"Return the device number for the device with MAJOR and MINOR, for use as
the last argument of `mknod'."
@@ -332,16 +324,17 @@ bailing out.~%root contents: ~s~%" (scandir "/"))
(define* (boot-system #:key
(linux-modules '())
+ linux-module-directory
qemu-guest-networking?
volatile-root?
pre-mount
(mounts '()))
"This procedure is meant to be called from an initrd. Boot a system by
-first loading LINUX-MODULES (a list of absolute file names of '.ko' files),
-then setting up QEMU guest networking if QEMU-GUEST-NETWORKING? is true,
-calling PRE-MOUNT, mounting the file systems specified in MOUNTS, and finally
-booting into the new root if any. The initrd supports kernel command-line
-options '--load', '--root', and '--repl'.
+first loading LINUX-MODULES (a list of module names) from
+LINUX-MODULE-DIRECTORY, then setting up QEMU guest networking if
+QEMU-GUEST-NETWORKING? is true, calling PRE-MOUNT, mounting the file systems
+specified in MOUNTS, and finally booting into the new root if any. The initrd
+supports kernel command-line options '--load', '--root', and '--repl'.
Mount the root file system, specified by the '--root' command-line argument,
if any.
@@ -362,6 +355,10 @@ to it are lost."
mounts)
"ext4"))
+ (define (lookup-module name)
+ (string-append linux-module-directory "/"
+ (ensure-dot-ko name)))
+
(display "Welcome, this is GNU's early boot Guile.\n")
(display "Use '--repl' for an initrd REPL.\n\n")
@@ -376,7 +373,10 @@ to it are lost."
(start-repl))
(display "loading kernel modules...\n")
- (for-each load-linux-module* linux-modules)
+ (current-module-debugging-port (current-output-port))
+ (for-each (cut load-linux-module* <>
+ #:lookup-module lookup-module)
+ (map lookup-module linux-modules))
(when qemu-guest-networking?
(unless (configure-qemu-networking)