GNU bug report logs - #36477
Add Guix System cross-compilation support

Previous Next

Full log

Message #701 received at 36477 <at> debbugs.gnu.org (full text, mbox):

From: Mathieu Othacehe <m.othacehe <at> gmail.com>
To: 36477 <at> debbugs.gnu.org
Cc: Mathieu Othacehe <m.othacehe <at> gmail.com>
Subject: [PATCH v4 20/23] build: vm: Fix arm32 support.
Date: Wed,  2 Oct 2019 11:59:01 +0200

* gnu/build/vm.scm (load-in-linux-vm): Disable qemu highmem support on ARM32
systems.
---
 gnu/build/vm.scm | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/gnu/build/vm.scm b/gnu/build/vm.scm
index a5d9fefa62..b85398ed24 100644
--- a/gnu/build/vm.scm
+++ b/gnu/build/vm.scm
@@ -102,6 +102,14 @@ the #:references-graphs parameter of 'derivation'."
       ;; hardware limits imposed by other machines.
       ,@(if target-arm32? '("-M" "virt") '())
 
+      ;; On ARM32, if the kernel is built without LPAE support, ECAM conflicts
+      ;; with VIRT_PCIE_MMIO causing PCI devices not to show up.  Disable
+      ;; explicitely highmem to fix it.
+      ;; See: https://bugs.launchpad.net/qemu/+bug/1790975.
+      ,@(if target-arm32?
+            '("-machine" "highmem=off")
+            '())
+
       ;; 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.
-- 
2.23.0

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.