diff options
| author | David Gibson <david@gibson.dropbear.id.au> | 2016-11-09 13:31:22 +1100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2017-02-06 12:33:21 +1100 |
| commit | 1fc125f5675df8f861c7a66fab6922c630a81eb6 (patch) | |
| tree | 53a236c3e00680260903d56b52dbfd11c96c0fd3 | |
| parent | 1401c322c8d431fa750cff8276ab725e406086ac (diff) | |
Allow ISA bus to be configured out
Currently, the code to handle the legacy ISA bus is always included in
qemu. However there are lots of platforms that don't include ISA legacy
devies, and quite a few that have never used ISA legacy devices at all.
This patch allows the ISA bus code to be disabled in the configuration for
platforms where it doesn't make sense.
For now, the default configs are adjusted to include ISA on all platforms
including PCI: anything with PCI can at least in principle add an i82378
PCI->ISA bridge. Also, CONFIG_IDE_CORE which is already in pci.mak
requires ISA support.
We also explicitly enable ISA on some other non-PCI platforms which include
ISA devices: moxie, sparc and unicore32. We may want to pare this down in
future.
The platforms that will lose ISA by default are: cris, lm32, microblazeel,
microblaze, openrisc, s390x, tricore, xtensaeb, xtensa. As far as I can
tell none of these ever used ISA.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | default-configs/moxie-softmmu.mak | 1 | ||||
| -rw-r--r-- | default-configs/pci.mak | 2 | ||||
| -rw-r--r-- | default-configs/sparc-softmmu.mak | 1 | ||||
| -rw-r--r-- | default-configs/unicore32-softmmu.mak | 1 | ||||
| -rw-r--r-- | hw/isa/Makefile.objs | 2 |
5 files changed, 6 insertions, 1 deletions
diff --git a/default-configs/moxie-softmmu.mak b/default-configs/moxie-softmmu.mak index 7e228638b3..e00d099994 100644 --- a/default-configs/moxie-softmmu.mak +++ b/default-configs/moxie-softmmu.mak @@ -1,5 +1,6 @@ # Default configuration for moxie-softmmu +CONFIG_ISA_BUS=y CONFIG_MC146818RTC=y CONFIG_SERIAL=y CONFIG_SERIAL_ISA=y diff --git a/default-configs/pci.mak b/default-configs/pci.mak index d8d654838c..60dc6510ec 100644 --- a/default-configs/pci.mak +++ b/default-configs/pci.mak @@ -1,4 +1,6 @@ CONFIG_PCI=y +# For now, CONFIG_IDE_CORE requires ISA, so we enable it here +CONFIG_ISA_BUS=y CONFIG_VIRTIO_PCI=y CONFIG_VIRTIO=y CONFIG_USB_UHCI=y diff --git a/default-configs/sparc-softmmu.mak b/default-configs/sparc-softmmu.mak index ab796b3d4f..004b0f4e77 100644 --- a/default-configs/sparc-softmmu.mak +++ b/default-configs/sparc-softmmu.mak @@ -1,5 +1,6 @@ # Default configuration for sparc-softmmu +CONFIG_ISA_BUS=y CONFIG_ECC=y CONFIG_ESP=y CONFIG_ESCC=y diff --git a/default-configs/unicore32-softmmu.mak b/default-configs/unicore32-softmmu.mak index de38577a35..5f6c4a8047 100644 --- a/default-configs/unicore32-softmmu.mak +++ b/default-configs/unicore32-softmmu.mak @@ -1,4 +1,5 @@ # Default configuration for unicore32-softmmu +CONFIG_ISA_BUS=y CONFIG_PUV3=y CONFIG_PTIMER=y CONFIG_PCKBD=y diff --git a/hw/isa/Makefile.objs b/hw/isa/Makefile.objs index 9164556a4d..fb37c55cf2 100644 --- a/hw/isa/Makefile.objs +++ b/hw/isa/Makefile.objs @@ -1,4 +1,4 @@ -common-obj-y += isa-bus.o +common-obj-$(CONFIG_ISA_BUS) += isa-bus.o common-obj-$(CONFIG_APM) += apm.o common-obj-$(CONFIG_I82378) += i82378.o common-obj-$(CONFIG_PC87312) += pc87312.o |