diff options
| author | Bandan Das <bsd@redhat.com> | 2015-11-13 01:55:48 -0500 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-11-17 15:41:13 +0200 |
| commit | 8d211f622b11ac2877c344f29de284d5a842d9d7 (patch) | |
| tree | a4080d3e696140ff35516e8945df36b72c545c8c /hw/pci-host/piix.c | |
| parent | 1f8431f42d833e8914f2d16ce4a49b7b72b90db0 (diff) | |
i440fx: print an error message if user tries to enable iommu
There's no indication of any sort that i440fx doesn't support
"iommu=on"
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Bandan Das <bsd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Bandan Das <bsd@redhat.com>
Diffstat (limited to 'hw/pci-host/piix.c')
| -rw-r--r-- | hw/pci-host/piix.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c index 7b2fbf9598..715208b22a 100644 --- a/hw/pci-host/piix.c +++ b/hw/pci-host/piix.c @@ -34,6 +34,7 @@ #include "sysemu/sysemu.h" #include "hw/i386/ioapic.h" #include "qapi/visitor.h" +#include "qemu/error-report.h" /* * I440FX chipset data sheet. @@ -301,6 +302,10 @@ static void i440fx_pcihost_realize(DeviceState *dev, Error **errp) static void i440fx_realize(PCIDevice *dev, Error **errp) { dev->config[I440FX_SMRAM] = 0x02; + + if (object_property_get_bool(qdev_get_machine(), "iommu", NULL)) { + error_report("warning: i440fx doesn't support emulated iommu"); + } } PCIBus *i440fx_init(const char *host_type, const char *pci_type, |