GNU bug report logs - #30604
[PATCH 0/4] Load Linux module only when supported hardware is present.

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From: Danny Milosavljevic <dannym <at> scratchpost.org>
To: 30604 <at> debbugs.gnu.org
Cc: Danny Milosavljevic <dannym <at> scratchpost.org>
Subject: [bug#30604] [PATCH v2 6/6] vm: Make the virtio-blk is uniquely identifyable in /sys.
Date: Mon, 26 Feb 2018 04:50:25 +0100

* gnu/build/vm.scm (load-in-linux-vm): Set virtio-blk pci addr to 0x10.
* gnu/system/vm.scm (common-qemu-options): Set virtio-blk pci addr to 0x10.
---
 gnu/build/vm.scm  | 2 +-
 gnu/system/vm.scm | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/gnu/build/vm.scm b/gnu/build/vm.scm
index fe003ea45..ebf9e9f6e 100644
--- a/gnu/build/vm.scm
+++ b/gnu/build/vm.scm
@@ -154,7 +154,7 @@ the #:references-graphs parameter of 'derivation'."
                                            builder)
                   (append
                    (if make-disk-image?
-                       `("-device" "virtio-blk,drive=myhd"
+                       `("-device" "virtio-blk-pci,addr=0x10,drive=myhd"
                          "-drive" ,(string-append "if=none,file=" output
                                                   ",format=" disk-image-format
                                                   ",id=myhd"))
diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm
index c64c9678f..ad48999ee 100644
--- a/gnu/system/vm.scm
+++ b/gnu/system/vm.scm
@@ -704,7 +704,8 @@ with '-virtfs' options for the host file systems listed in SHARED-FS."
 
      #$@(map virtfs-option shared-fs)
      "-vga std"
-     (format #f "-drive file=~a,if=virtio,cache=writeback,werror=report,readonly"
+     "-device" "virtio-blk-pci,addr=0x10,drive=myhd"
+     (format #f "-drive id=myhd,file=~a,if=none,cache=writeback,werror=report,readonly"
              #$image)))
 
 (define* (system-qemu-image/shared-store-script os

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