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authorJani Nikula <jani.nikula@intel.com>2018-11-02 09:00:55 +0200
committerJani Nikula <jani.nikula@intel.com>2018-11-02 09:01:28 +0200
commit7a085c3aad94cce7e11031c6800e41668418ae4c (patch)
treeb3474f8bd622f87ad39227057f9de60959c8bd95 /arch/x86/kernel/eisa.c
parent18cde299df33ff73908f7e5dcebf321fb79ed36c (diff)
parentf9885ef875e9160454392f85159163674159c51f (diff)
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Merge drm/drm-next into drm-intel-next-queued
Although there's nothing crucial missing, it's been a long time since the last backmerge. Catch up with drm-next. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'arch/x86/kernel/eisa.c')
-rw-r--r--arch/x86/kernel/eisa.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86/kernel/eisa.c b/arch/x86/kernel/eisa.c
index f260e452e4f8..e8c8c5d78dbd 100644
--- a/arch/x86/kernel/eisa.c
+++ b/arch/x86/kernel/eisa.c
@@ -7,11 +7,17 @@
#include <linux/eisa.h>
#include <linux/io.h>
+#include <xen/xen.h>
+
static __init int eisa_bus_probe(void)
{
- void __iomem *p = ioremap(0x0FFFD9, 4);
+ void __iomem *p;
+
+ if (xen_pv_domain() && !xen_initial_domain())
+ return 0;
- if (readl(p) == 'E' + ('I'<<8) + ('S'<<16) + ('A'<<24))
+ p = ioremap(0x0FFFD9, 4);
+ if (p && readl(p) == 'E' + ('I' << 8) + ('S' << 16) + ('A' << 24))
EISA_bus = 1;
iounmap(p);
return 0;