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02/03: build: vm: Fix arm32 support.
From: |
guix-commits |
Subject: |
02/03: build: vm: Fix arm32 support. |
Date: |
Fri, 22 Nov 2019 10:34:54 -0500 (EST) |
mothacehe pushed a commit to branch master
in repository guix.
commit 2608417ab8889cf8c1a61032633c474228141e78
Author: Mathieu Othacehe <address@hidden>
Date: Fri Aug 23 09:51:33 2019 +0200
build: vm: Fix arm32 support.
* 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 a5d9fef..b85398e 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.