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-rw-r--r--gnu/build/vm.scm44
1 files changed, 34 insertions, 10 deletions
diff --git a/gnu/build/vm.scm b/gnu/build/vm.scm
index 20ee12709b..404f324045 100644
--- a/gnu/build/vm.scm
+++ b/gnu/build/vm.scm
@@ -1,7 +1,7 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2016 Christopher Allan Webber <cwebber@dustycloud.org>
-;;; Copyright © 2016 Leo Famulari <leo@famulari.name>
+;;; Copyright © 2016, 2017 Leo Famulari <leo@famulari.name>
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
;;;
@@ -77,6 +77,7 @@
linux initrd
make-disk-image?
single-file-output?
+ target-arm32?
(disk-image-size (* 100 (expt 2 20)))
(disk-image-format "qcow2")
(references-graphs '()))
@@ -91,6 +92,31 @@ access it via /dev/hda.
REFERENCES-GRAPHS can specify a list of reference-graph files as produced by
the #:references-graphs parameter of 'derivation'."
+
+ (define arch-specific-flags
+ `(;; On ARM, a machine has to be specified. Use "virt" machine to avoid
+ ;; hardware limits imposed by other machines.
+ ,@(if target-arm32? '("-M" "virt") '())
+
+ ;; Only enable kvm if we see /dev/kvm exists. This allows users without
+ ;; hardware virtualization to still use these commands. KVM support is
+ ;; still buggy on some ARM32 boards. Do not use it even if available.
+ ,@(if (and (file-exists? "/dev/kvm")
+ (not target-arm32?))
+ '("-enable-kvm")
+ '())
+ "-append"
+ ;; The serial port name differs between emulated architectures/machines.
+ ,@(if target-arm32?
+ `(,(string-append "console=ttyAMA0 --load=" builder))
+ `(,(string-append "console=ttyS0 --load=" builder)))
+ ;; NIC is not supported on ARM "virt" machine, so use a user mode
+ ;; network stack instead.
+ ,@(if target-arm32?
+ '("-device" "virtio-net-pci,netdev=mynet"
+ "-netdev" "user,id=mynet")
+ '("-net" "nic,model=virtio"))))
+
(when make-disk-image?
(format #t "creating ~a image of ~,2f MiB...~%"
disk-image-format (/ disk-image-size (expt 2 20)))
@@ -113,7 +139,8 @@ the #:references-graphs parameter of 'derivation'."
(unless (zero?
(apply system* qemu "-nographic" "-no-reboot"
"-m" (number->string memory-size)
- "-net" "nic,model=virtio"
+ "-object" "rng-random,filename=/dev/urandom,id=guixsd-vm-rng"
+ "-device" "virtio-rng-pci,rng=guixsd-vm-rng"
"-virtfs"
(string-append "local,id=store_dev,path="
(%store-directory)
@@ -127,15 +154,12 @@ the #:references-graphs parameter of 'derivation'."
builder)
(append
(if make-disk-image?
- `("-drive" ,(string-append "file=" output
- ",if=virtio"))
+ `("-device" "virtio-blk,drive=myhd"
+ "-drive" ,(string-append "if=none,file=" output
+ ",format=" disk-image-format
+ ",id=myhd"))
'())
- ;; Only enable kvm if we see /dev/kvm exists.
- ;; This allows users without hardware virtualization to still
- ;; use these commands.
- (if (file-exists? "/dev/kvm")
- '("-enable-kvm")
- '()))))
+ arch-specific-flags)))
(error "qemu failed" qemu))
;; When MAKE-DISK-IMAGE? is true, the image is in OUTPUT already.