Commit Graph

18 Commits

Author SHA1 Message Date
Avi Kivity
a8170e5e97 Rename target_phys_addr_t to hwaddr
target_phys_addr_t is unwieldly, violates the C standard (_t suffixes are
reserved) and its purpose doesn't match the name (most target_phys_addr_t
addresses are not target specific).  Replace it with a finger-friendly,
standards conformant hwaddr.

Outstanding patchsets can be fixed up with the command

  git rebase -i --exec 'find -name "*.[ch]"
                        | xargs s/target_phys_addr_t/hwaddr/g' origin

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-23 08:58:25 -05:00
Gerd Hoffmann
488cb996cd serial: split serial.c
Split serial.c into serial.c, serial.h and serial-isa.c.  While being at
creating a serial.h header file move the serial prototypes from pc.h to
the new serial.h.  The latter leads to s/pc.h/serial.h/ in tons of
boards which just want the serial bits from pc.h

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-22 13:26:42 -05:00
Eduardo Habkost
5f072e1f30 create struct for machine initialization arguments
This should help us to:
- More easily add or remove machine initialization arguments without
  having to change every single machine init function;
- More easily make mechanical changes involving the machine init
  functions in the future;
- Let machine initialization forward the init arguments to other
  functions more easily.

This change was half-mechanical process: first the struct was added with
the local ram_size, boot_device, kernel_*, initrd_*, and cpu_model local
variable initialization to all functions. Then the compiler helped me
locate the local variables that are unused, so they could be removed.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-10-20 07:53:28 +00:00
Alexander Graf
fb37c3029c PPC: e500: Only expose even TLB sizes in initial TLB
When booting our e500 machine, we automatically generate a big TLB entry
in TLB1 that covers all of the code we need to run in there until the guest
can handle its TLB on its own.

However, e500v2 can only handle MAS1.0 sizes. However, we keep our TLB
information in MAS2.0 layout, which means we have twice as many TLB sizes
to choose from. That also means we can run into a situation where we try
to add a TLB size that could not fit into the MAS1.0 size bits.

Fix it by making sure we always have the lower bit set to 0. That way we
are always guaranteed to have MAS1.0 compatible TLB size information.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-10-05 02:35:11 +02:00
Scott Wood
7e7ec2d290 PPC: e500: calculate initrd_base like dt_base
While investigating dtb pad issues, I noticed that initrd_base wasn't taking
loadaddr into account the way dt_base was.  This seems wrong.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-10-05 02:35:11 +02:00
Scott Wood
9dd5eba1bc PPC: e500: increase DTC_LOAD_PAD
An allowance of 5 MiB for BSS is not enough for Linux kernels with certain
debug options enabled (not sure exactly which one caused it, but I'd guess
lockdep).  The kernel I ran into this with had a BSS of around 6.4 MB.

Unfortunately, uImage does not give us enough information to determine the
actual BSS size.  Increase the allowance to 18 MiB to give us plenty of
room.  Eventually this should be more intelligent, possibly packing
initrd+dtb at the end of guest RAM.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-10-05 02:35:11 +02:00
Alexander Graf
711934334e fdt: move dumpdtb interpretation code to device_tree.c
The dumpdtb code can be useful in more places than just for e500. Move it
to a generic place.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-10-05 02:35:11 +02:00
Alexander Graf
7e99826c35 Revert "PPC: e500: Use new MPIC dt format"
This reverts commit 518c7fb44f. It breaks
new Linux guests with SMP, because IPIs get mapped to large vectors which
our MPIC emulation does not implement.

Conflicts:

	hw/ppc/e500.c
2012-08-15 19:43:14 +02:00
Scott Wood
4d5c29ca45 PPC: e500: add generic e500 platform
This gives the kernel a paravirtualized machine to target, without
requiring both sides to pretend to be targeting a specific board
that likely has little to do with the host in KVM scenarios.  This
avoids the need to add new boards to QEMU, just to be able to
run KVM on new CPUs.

Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: conditionalize on CONFIG_FDT]
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-08-15 19:43:13 +02:00
Scott Wood
e6eaabeb8d PPC: e500: split mpc8544ds machine from generic e500 code
Currently the only mpc8544ds-ism that is factored out is
toplevel compatible and model.  In the future the generic e500
code is expected to become more generic.

Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: conditionalize on CONFIG_FDT]
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-08-15 19:43:13 +02:00
Scott Wood
b330598137 PPC: e500: change internal references away from mpc8544ds
No functional changes -- machine is still outwardly mpc8544ds.

The references that are not changed contain mpc8544 hardware details that
need to be parameterized if/when a different e500 platform wants to
change them.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-08-15 19:43:13 +02:00
Scott Wood
4a18e7c92a PPC: e500: rename mpc8544ds into generic file
Rename the file (with no changes other than fixing up the header paths)
in preparation for refactoring into a generic e500 platform.  Also move
it into the newly created ppc/ directory.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
[agraf: conditionalize on CONFIG_FDT]
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-08-15 19:43:13 +02:00
David Gibson
ad0ebb91cd pseries: Convert sPAPR TCEs to use generic IOMMU infrastructure
The pseries platform already contains an IOMMU implementation, since it is
essential for the platform's paravirtualized VIO devices.  This IOMMU
support is currently built into the implementation of the VIO "bus" and
the various VIO devices.

This patch converts this code to make use of the new common IOMMU
infrastructure.

We don't yet handle synchronization of map/unmap callbacks vs. invalidations,
this will require some complex interaction with the kernel and is not a
major concern at this stage.

Cc: Alex Graf <agraf@suse.de>

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-06-27 16:33:25 -05:00
Alexander Graf
63397dd0be PPC: e500: require libfdt
Now that we're moving all of the device tree generation from an external
pre-execution generated blob to runtime generation using libfdt, we absolutely
must have libfdt around.

This requirement was there before already, as the only way to not require libfdt
with e500 was to not use -kernel, which was the only way to boot the mpc8544ds
machine. This patch only manifests said requirement in the build system.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24 01:04:47 +02:00
Andreas Färber
9bbfbb61af hw/xilinx_*: Share Xilinx devices between ppc and microblaze
Speeds up the build.

xilinx_ethlite uses tswap32() and is thus target-dependent.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2012-06-15 12:44:26 +02:00
Andreas Färber
7c760cbcea target-ppc: Unbreak kvm_ppc.c build
The file is located in target-ppc/, not hw/.

Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-09 10:20:42 +00:00
Paolo Bonzini
49ac9e0a8c build: move device tree to per-target Makefile.objs
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-06-07 09:21:18 +02:00
Paolo Bonzini
5e8861a036 build: move obj-TARGET-y variables to nested Makefile.objs
Also drop duplicate occurrence of device-hotplug.o.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-06-07 07:17:36 +02:00