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-rw-r--r--Makefile.am1
-rw-r--r--gnu/system/vm.scm77
-rw-r--r--guix/build/vm.scm97
3 files changed, 117 insertions, 58 deletions
diff --git a/Makefile.am b/Makefile.am
index 84e77259af..8d425f1be9 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -69,6 +69,7 @@ MODULES = \
guix/build/pull.scm \
guix/build/rpath.scm \
guix/build/svn.scm \
+ guix/build/vm.scm \
guix/packages.scm \
guix/snix.scm \
guix/scripts/download.scm \
diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm
index a7d81feb4a..9d8ad87b88 100644
--- a/gnu/system/vm.scm
+++ b/gnu/system/vm.scm
@@ -119,67 +119,27 @@ made available under the /xchg CIFS share."
;; Code that launches the VM that evaluates EXP.
`(let ()
(use-modules (guix build utils)
- (srfi srfi-1)
- (ice-9 rdelim))
-
- (let ((out (assoc-ref %outputs "out"))
- (cu (string-append (assoc-ref %build-inputs "coreutils")
- "/bin"))
- (qemu (string-append (assoc-ref %build-inputs "qemu")
- "/bin/qemu-system-"
- (car (string-split ,system #\-))))
- (img (string-append (assoc-ref %build-inputs "qemu")
- "/bin/qemu-img"))
- (linux (string-append (assoc-ref %build-inputs "linux")
+ (guix build vm))
+
+ (let ((linux (string-append (assoc-ref %build-inputs "linux")
"/bzImage"))
(initrd (string-append (assoc-ref %build-inputs "initrd")
"/initrd"))
- (builder (assoc-ref %build-inputs "builder")))
-
- ;; XXX: QEMU uses "rm -rf" when it's done to remove the temporary SMB
- ;; directory, so it really needs `rm' in $PATH.
- (setenv "PATH" cu)
-
- ,(if make-disk-image?
- `(zero? (system* img "create" "-f" "qcow2" "image.qcow2"
- ,(number->string disk-image-size)))
- '(begin))
-
- (mkdir "xchg")
-
- ;; Copy the reference-graph files under xchg/ so EXP can access it.
- (begin
- ,@(match references-graphs
- (((graph-files . _) ...)
- (map (lambda (file)
- `(copy-file ,file
- ,(string-append "xchg/" file)))
- graph-files))
- (#f '())))
-
- (and (zero?
- (system* qemu "-enable-kvm" "-nographic" "-no-reboot"
- "-m" ,(number->string memory-size)
- "-net" "nic,model=virtio"
- "-virtfs"
- ,(string-append "local,id=store_dev,path=" (%store-prefix)
- ",security_model=none,mount_tag=store")
- "-virtfs"
- ,(string-append "local,id=xchg_dev,path=xchg"
- ",security_model=none,mount_tag=xchg")
- "-kernel" linux
- "-initrd" initrd
- "-append" (string-append "console=ttyS0 --load="
- builder)
- ,@(if make-disk-image?
- '("-hda" "image.qcow2")
- '())))
- ,(if make-disk-image?
- '(copy-file "image.qcow2" ; XXX: who mkdir'd OUT?
- out)
- '(begin
- (mkdir out)
- (copy-recursively "xchg" out)))))))
+ (builder (assoc-ref %build-inputs "builder"))
+ (graphs ',(match references-graphs
+ (((graph-files . _) ...) graph-files)
+ (_ #f))))
+
+ (set-path-environment-variable "PATH" '("bin")
+ (map cdr %build-inputs))
+
+ (load-in-linux-vm builder
+ #:output (assoc-ref %outputs "out")
+ #:linux linux #:initrd initrd
+ #:memory-size ,memory-size
+ #:make-disk-image? ,make-disk-image?
+ #:disk-image-size ,disk-image-size
+ #:references-graphs graphs))))
(mlet* %store-monad
((input-alist (sequence %store-monad input-alist))
@@ -206,6 +166,7 @@ made available under the /xchg CIFS share."
#:env-vars env-vars
#:modules (delete-duplicates
`((guix build utils)
+ (guix build vm)
,@modules))
#:guile-for-build guile-for-build
#:references-graphs references-graphs)))
diff --git a/guix/build/vm.scm b/guix/build/vm.scm
new file mode 100644
index 0000000000..725ede4e1f
--- /dev/null
+++ b/guix/build/vm.scm
@@ -0,0 +1,97 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix build vm)
+ #:use-module (ice-9 match)
+ #:use-module (guix build utils)
+ #:export (load-in-linux-vm))
+
+;;; Commentary:
+;;;
+;;; This module provides supporting code to run virtual machines and build
+;;; virtual machine images using QEMU.
+;;;
+;;; Code:
+
+(define (qemu-command)
+ "Return the default name of the QEMU command for the current host."
+ (string-append "qemu-system-"
+ (substring %host-type 0
+ (string-index %host-type #\-))))
+
+
+(define* (load-in-linux-vm builder
+ #:key
+ output
+ (qemu (qemu-command)) (memory-size 512)
+ linux initrd
+ make-disk-image? (disk-image-size 100)
+ (references-graphs '()))
+ "Run BUILDER, a Scheme file, into a VM running LINUX with INITRD, and copy
+the result to OUTPUT.
+
+When MAKE-DISK-IMAGE? is true, OUTPUT will contain a VM image of
+DISK-IMAGE-SIZE MiB resulting from the execution of BUILDER, which may access
+it via /dev/hda.
+
+REFERENCES-GRAPHS can specify a list of reference-graph files as produced by
+the #:references-graphs parameter of 'derivation'."
+
+ (when make-disk-image?
+ (unless (zero? (system* "qemu-img" "create" "-f" "qcow2" "image.qcow2"
+ (number->string disk-image-size)))
+ (error "qemu-img failed")))
+
+ (mkdir "xchg")
+
+ (match references-graphs
+ ((graph-files ...)
+ ;; Copy the reference-graph files under xchg/ so EXP can access it.
+ (map (lambda (file)
+ (copy-file file (string-append "xchg/" file)))
+ graph-files))
+ (_ #f))
+
+ (unless (zero?
+ (apply system* qemu "-enable-kvm" "-nographic" "-no-reboot"
+ "-m" (number->string memory-size)
+ "-net" "nic,model=virtio"
+ "-virtfs"
+ (string-append "local,id=store_dev,path="
+ (%store-directory)
+ ",security_model=none,mount_tag=store")
+ "-virtfs"
+ (string-append "local,id=xchg_dev,path=xchg"
+ ",security_model=none,mount_tag=xchg")
+ "-kernel" linux
+ "-initrd" initrd
+ "-append" (string-append "console=ttyS0 --load="
+ builder)
+ (if make-disk-image?
+ '("-hda" "image.qcow2")
+ '())))
+ (error "qemu failed" qemu))
+
+ (if make-disk-image?
+ (copy-file "image.qcow2" ; XXX: who mkdir'd OUTPUT?
+ output)
+ (begin
+ (mkdir output)
+ (copy-recursively "xchg" output))))
+
+;;; vm.scm ends here
generated by cgit v1.2.3 (git 2.45.0) at 2024-11-20 16:21:11 +0000