In order to use the new S390x virtio bus we just introduced, we also
need a machine description that sets up the machine according to our
PV specification.
Let's add that machine description and be happy!
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
On S390x we don't want to go through the hassle of emulating real existing
hardware, because we don't need to for running Linux.
So let's instead implement a machine that is 100% based on VirtIO which we
fortunately implement already.
This patch implements the bus that is the groundwork for such an S390x
virtio machine.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Let's enable the basics for system emulation so we can run virtual machines
with KVM!
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
KVM on S390x requires the virtual address space of the guest's RAM to be
within the first 256GB.
The general direction I'd like to see KVM on S390 move is that this requirement
is losened, but for now that's what we're stuck with.
So let's just hack up qemu_ram_alloc until KVM behaves nicely :-).
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
S390x was one of the first platforms that received support for KVM back in the
day. Unfortunately until now there hasn't been a qemu implementation that would
enable users to actually run guests.
So let's include support for KVM S390x in qemu!
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Qemu won't let us run a KVM target without having host TCG support. Well, for
now we don't have any so let's implement a fake target that only stubs out
everything.
I tried to keep the patch as close to Uli's source as possible, so whenever
he feels like it he can easily diff his version against this one.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This patch makes configure aware of S390 hosts and guests. When not explicitly
defined using --target-list= no S390 targets will be built though.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Because Qemu currently requires a TCG target to exist and there are quite some
useful helpers here to lay the groundwork for out KVM target, let's create a
stub TCG emulation target for S390X CPUs.
This is required to make tcg happy. The emulation target itself won't work
though.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This implements the audio control or volume read support as needed by
some systems. A Conectiva Parolin system required this to detect an IDE
device as CD-ROM, through the CDVOLREAD ioctl.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Some PAGE constants were used instead of the macros we already have
defined in internal.h.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* buf was too small for longer register names.
* Use consistent upper case for nouns in register names.
* Use better name for array with e100 register names.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Since commit a992fe3d0f
config-devices.h is no longer used.
So there is no need to keep the dependency rules
any longer.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This should avoid truncating the register name when debugging.
Signed-off-by: David Benjamin <davidben@mit.edu>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
In mb_mod_length a return value is stored that is negative in error case. With
an unsigned type the check goes wrong.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Checking for nbytes < 0 is pointless as long as it's a size_t. If we want to
use negative numbers for error codes, we should use signed types.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch fixes the follow error when LSI_DEBUG is set.
CC libhw64/lsi53c895a.o
cc1: warnings being treated as errors
qemu/hw/lsi53c895a.c: In function 'lsi_io_mapfunc':
qemu/hw/lsi53c895a.c:1932: error: format '%08x' expects type 'unsigned int', but argument 2 has type 'pcibus_t'
qemu/hw/lsi53c895a.c: In function 'lsi_ram_mapfunc':
/qemu/hw/lsi53c895a.c:1947: error: format '%08x' expects type 'unsigned int', but argument 2 has type 'pcibus_t'
qemu/hw/lsi53c895a.c: In function 'lsi_mmio_mapfunc':
qemu/hw/lsi53c895a.c:1957: error: format '%08x' expects type 'unsigned int', but argument 2 has type 'pcibus_t'
make[1]: *** [lsi53c895a.o] Error 1
make: *** [subdir-libhw64] Error 2
Signed-off-by: Ryan Harper <ryanh@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Make using mingw32 on windows fails when running grep "=y$$".
The command is expanded to grep "=y$ and the missing "
results in an error.
I don't expect a file config-devices.mak with =y somewhere in
the middle of a line (they are always at the end of the line),
so simplifying the regular expression to =y seems to be permitted.
This avoids problems with wrong expansion.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Make using mingw32 on windows does not preserve $@ in macros
when they are modified using this pattern:
target: macro += something
This behaviour results in an error when QEMU_CFLAGS containing
"-MMD -MP -MT $@" is modified for compilation of source files
which use SDL: $@ will expand to nothing, -MT no longer has
the correct argument (it will take the next one from the command
line) and the build will fail or run with a wrong command line.
The problem is fixed by using a new macro QEMU_DGFLAGS
which is not modified by a target rule.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
A code review run by Steve Grubb complained about code in e1000.c:
In hw/e1000.c at line 89, vlan is declared to be 4 bytes.
At line 382 is an attempt to do a memmove over it with a size of 12.
This was fixed by splitting the memmove in two calls and
adding a comment to the declaration of vlan and data.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
While trying to run -kernel with -bios pc-bios/pcbios.bin, I realized
that I was actually writing data to %es, but only set up %ds to a 32-bit
segment we want to write to.
So at the end of the day the data hasn't actually been copied. Oops.
So here's a fix to set ES instead of DS, which makes -kernel work with
BOCHS bios again (and actually makes the code do the correct thing)!
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Commit 26a9e82a has the following flaws:
* It enabled DEBUG.
* It referenced two properties by the wrong name in
usb_host_device_open(), which crashes with "qdev_prop_set: property
"USB Host Device.bus" not found".
* It broke "-usbdevice host:auto:..." by calling parse_filter()
incorrectly.
* It broke parsing of "-usbdevice host:BUS.ADDR" and "-usbdevice
host:VID:PRID" with a trivial pasto.
* It broke wildcards in "-usbdevice host:auto:...". Before, the four
filter components were stored as int, and the wildcard was encoded
as -1. The faulty commit changed storage to uint32_t, and the
wildcard encoding to 0. But it failed to update parse_filter()
accordingly.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Valid description taken from qemu-img.texi, although it would be better
to have this information recorded in only one place.
Signed-off-by: Pierre Riteau <Pierre.Riteau@irisa.fr>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
To avoid the build failing with:
gcc -Wall -Wstrict-prototypes -Werror -fomit-frame-pointer -fno-
builtin -I/export/home/andreas/QEMU/qemu -Wall -Wstrict-prototypes -
Werror -fomit-frame-pointer -fno-builtin -I/export/home/andreas/QEMU/
qemu -c -o multiboot.o multiboot.S
/var/tmp//ccd3aWyk.s: Assembler messages:
/var/tmp//ccd3aWyk.s:15: Error: value of 512 too large for field of 1
bytes at 0000000000000002
gmake[1]: *** [multiboot.o] Error 1
disable recursion into pc-bios/optionrom, as done for Darwin already.
Signed-off-by: Andreas Faerber <andreas.faerber@web.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Either rename variables and functions to refer to write errors (which is what
they actually do) or introduce a parameter to distinguish reads and writes.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Vendor identification, product identification and product revision level
should be padded with spaces without a terminating NULL character, see
SCSI-2 standard, 8.2.5.1 Standard INQUIRY data.
Signed-off-by: Laszlo Ast <laszlo.ast@siemens-enterprise.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch extends the qemu-kvm state sync logic with support for
KVM_GET/SET_VCPU_EVENTS, giving access to yet missing exception,
interrupt and NMI states.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Some recent change made PPC guests always start at address 0x0 because env
isn't synced to kvm_state on first bootup.
I'm not sure if this is the correct bugfix, but at least it makes PPC boot
again with KVM enabled.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
While x86 only needs to sync cr0-4 to know all about its MMU state and enable
qemu to resolve virtual to physical addresses, we need to sync all of the
segment registers on PPC to know which mapping we're in.
So let's grab the segment register contents to be able to use the "x" monitor
command and also enable the gdbstub to resolve virtual addresses.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Cirrus vga has a copy of many PCI macros,
and it doesn't even use them. Clean up.
We also don't need to override header type
as it is NORMAL by default.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
PCI memory should be disabled at reset, otherwise
we might claim transactions at address 0.
I/O should also be disabled, although for cirrus
it is harmless to enable it as we do not
have I/O bar.
Note: bios fix needed for this patch to work
was already applied:
previously bios incorrently assumed that it does not
need to enable i/o unless device has i/o bar.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
We're leaking file descriptors to child processes. Set FD_CLOEXEC on file
descriptors that don't need to be passed to children to stop this misbehaviour.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
I haven't heard yet of anyone using qemu-img to copy an image to a real floppy,
but it's a valid use case.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Currently qcow2 unnecessarily rounds up the length of the backing format string
to the next multiple of 8. At the same time, the array in BlockDriverState can
only hold 15 characters, so in effect backing formats with 9 characters or more
don't work (e.g. host_device).
Save the real string length and things start to work for all valid image format
names.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
rerror controls the action to be taken when an error occurs while accessing the
guest image file. It corresponds to werror which already controls the action
take for write errors.
This purely introduces parsing rerror command line option into the right
structures, real support for it in the device emulation is added in the
following patches.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Either rename variables and functions to refer to write errors (which is what
they actually do) or introduce a parameter to distinguish reads and writes.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
As we may do more than one migration (cancellation, live backup), reset
bytes_transferred on stage 1.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
