The main functional change is to convert QEMUMachine into MachineClass
and QEMUMachineInitArgs into MachineState, instance of MachineClass.
As a first step, in order to make possible an incremental development,
both QEMUMachine and QEMUMachineInitArgs are being embedded into the
new types.
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Previously libvirt required the first/default PCI bus to have name "pci".
Since QEMU can support multiple buses now, libvirt wants "pci.0" now.
This removes custom bus name and lets QEMU make up default names.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Define and use QOM cast macro. Removes some usages of legacy casting
systems.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
[AF: Rename parent field]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Create an abstract class that encompasses both max111x variants. This is
needed for QOM cast macro creation (and is the right thing to do
anyway). Macroify type-names in the process.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Remove two legacy ->qbus style casts from TYPE_SSI_BUS to TYPE_BUS in
ssi.c.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
[AF: Convert one missing ->qbus and rename parent field]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Convert legacy ->qdev style casts from TYPE_SSI_SLAVE to TYPE_DEVICE.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
[AF: Introduce local DeviceState variable for transition to QOM realize]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Move setting DeviceClass::hotpluggable default from device's
class_base_init() to device's class_init().
Reported-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Commit 1a37eca107 (qdev: add
"hotpluggable" property to Device) added a property "hotpluggable" to
each device, with its getter accessing parent_bus->allow_hotplug.
Add a NULL check.
Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
More small fixes: the issues annoy developers so
I thought they are worth fixing quickly.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
acpi,pc,test bug fixes
More small fixes: the issues annoy developers so
I thought they are worth fixing quickly.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Tue 11 Mar 2014 11:27:44 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* remotes/mst/tags/for_upstream:
acpi-test: update expected SSDT files
acpi-build: don't access unaligned addresses
q35: Correct typo BRDIGE -> BRIDGE
configure: don't modify .status on error
pc: avoid duplicate names for ROM MRs
loader: rename in_ram/has_mr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* implement WFE as yield (improves performance with emulated SMP)
* fixes to avoid undefined behaviour shifting left into sign bit
* libvixl format string fixes for 32 bit hosts
* fix build error when intptr_t and tcg_target_long are different
sizes (eg x32)
* implement PMCCNTR register
* fix incorrect setting of E bit in CPSR (broke booting under
KVM on ARM)
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140310' into staging
target-arm queue:
* implement WFE as yield (improves performance with emulated SMP)
* fixes to avoid undefined behaviour shifting left into sign bit
* libvixl format string fixes for 32 bit hosts
* fix build error when intptr_t and tcg_target_long are different
sizes (eg x32)
* implement PMCCNTR register
* fix incorrect setting of E bit in CPSR (broke booting under
KVM on ARM)
# gpg: Signature made Mon 10 Mar 2014 15:05:25 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
* remotes/pmaydell/tags/pull-target-arm-20140310:
target-arm: Implement WFE as a yield operation
hw/arm/musicpal: Avoid shifting left into sign bit
hw/ssi/xilinx_spips.c: Avoid shifting left into sign bit
hw/arm/omap1.c: Avoid shifting left into sign bit
pxa2xx: Don't shift into sign bit
libvixl: Fix format strings for several int64_t values
target-arm: Fix intptr_t vs tcg_target_long
target-arm: Implements the ARM PMCCNTR register
target-arm: Fix incorrect setting of E bit in CPSR
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
casting an unaligned address to e.g.
uint32_t can trigger undefined behaviour in C.
Replace cast + assignment with memcpy.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Since
commit 04920fc0fa
loader: store FW CFG ROM files in RAM
RAM MRs including ROM files in FW CFGs are created
and named using the file basename.
This becomes problematic if these names are
supplied by user, since the basename might not
be unique.
There are two cases we care about:
- option-rom flag.
- option ROM for devices. This triggers e.g. when
using rombar=0.
At the moment we get an assert. E.g
qemu -option-rom /usr/share/ipxe/8086100e.rom -option-rom
/usr/share/ipxe.efi/8086100e.rom
RAMBlock "/rom@genroms/8086100e.rom" already registered, abort!
This is a regression from 1.6.
For now let's keep it simple and just avoid creating the
MRs in case of option ROMs.
when using 1.7 machine types, enable
option ROMs in RAM to match that version.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
we put copy of ROMs in MR for migration.
but the name rom_in_ram makes one think we
load it in guest RAM.
Rename has_mr to make intent clearer.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Both QEMU and KVM have already accumulated a significant number of
optimizations based on the hard-coded assumption that ioapic polarity
will always use the ActiveHigh convention, where the logical and
physical states of level-triggered irq lines always match (i.e.,
active(asserted) == high == 1, inactive == low == 0). QEMU guests
are expected to follow directions given via ACPI and configure the
ioapic with polarity 0 (ActiveHigh). However, even when misbehaving
guests (e.g. OS X <= 10.9) set the ioapic polarity to 1 (ActiveLow),
QEMU will still use the ActiveHigh signaling convention when
interfacing with the emulated ioapic.
This patch modifies the emulated ioapic to completely ignore polarity
as set by the guest OS, enabling misbehaving guests to work alongside
those which comply with the ActiveHigh polarity specified by QEMU's
ACPI tables.
Signed-off-by: Gabriel L. Somlo <somlo@cmu.edu>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Bit 7 of Input Port is the keyboard inhibit switch.
0 means keyboard inhibited, while 1 means keyboard enabled.
Incidentaly, this also fixes an error encountered while booting
an Award BIOS: "Keyboard is locked out - Unlock the key".
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
In write-only mode, writes are forwarded to RAM, while reads should not be
handled (ie should return 0xff).
Assume that in this mode, no read access is ever done, as they shouldn't
give any sensible result.
So, in write-only mode, alias PAM region to RAM, instead of PCI memory
(which can even be mapped to some device!)
This fixes Award BIOS, which use this mode to shadow system BIOS and video BIOS.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
If enabled, set the thread name at creation (on GNU systems with
pthread_set_np)
Fix up all the callers with a thread name
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
PCIE is causing asserts each time a multifunction device is added
on command line (coldplug).
This is caused by
commit a66e657e18
pci/pcie: convert PCIE hotplug to use hotplug-handler API
QEMU abort is caused by misplaced assertion, which should
be checked only when device is hotplugged.
Reference to regression report:
http://www.mail-archive.com/qemu-devel@nongnu.org/msg216226.html
Fixes: a66e657e18
Reported-By: Nigel Kukard <nkukard+qemu@lbsd.net>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
peer_{de,at}tach were called from inside assert().
We don't support building without NDEBUG but it's not tidy.
Rearrange to attach peer outside assert calls.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
As reported in
http://article.gmane.org/gmane.comp.emulators.qemu/253987
Mac OSX actually requires describing all occupied slots
in ACPI - even if hotplug isn't enabled.
I didn't expect this so I dropped description of all
non hotpluggable slots from ACPI.
As a result: before
commit 99fd437dee (enable
hotplug for pci bridges), PCI cards show up in the "device tree" of OS X
(System Information). E.g., on MountainLion users have:
Hardware -> PCI Cards:
Card Type Driver Installed Slot
*ethernet Ethernet Controller Yes PCI Slot 2
pci8086,2934 USB UHC Yes PCI Slot 29
ethernet:
Type: Ethernet Controller
Driver Installed: Yes
MSI: No
Bus: PCI
Slot PCI Slot 2
Vendor ID: 0x8086
Device ID: 0x100e
Subsystem Vendor ID: 0x1af4
Subsystem ID: 0x1100
Revision ID: 0x0003
Hardware -> Ethernet Cards
ethernet:
Type: Ethernet Controller
Bus: PCI
Slot PCI Slot 2
Vendor ID: 0x8086
Device ID: 0x100e
Subsystem Vendor ID: 0x1af4
Subsystem ID: 0x1100
Revision ID: 0x0003
BSD name: en0
Kext name: AppleIntel8254XEthernet.kext
Location: /System/Library/Extensions/...
Version: 3.1.1b1
After commit 99fd437dee, users get:
Hardware -> PCI Cards:
This computer doesn't contain any PCI cards. If you installed PCI
cards, make sure they're properly installed.
Hardware -> Ethernet Cards
ethernet:
Type: Ethernet Controller
Bus: PCI
Vendor ID: 0x8086
Device ID: 0x100e
Subsystem Vendor ID: 0x1af4
Subsystem ID: 0x1100
Revision ID: 0x0003
BSD name: en0
Kext name: AppleIntel8254XEthernet.kext
Location: /System/Library/Extensions/...
Version: 3.1.1b1
Ethernet still works, but it's not showing up on the PCI bus, and it
no longer thinks it's plugged in to slot #2, as it used to before the
change.
To fix, append description for all occupied non hotpluggable PCI slots.
One need to be careful when doing this: VGA devices
are now described in SSDT, so we need to drop description from DSDT.
And ISA devices are used in DSDT so drop them from SSDT.
Reported-by: Gabriel L. Somlo <gsomlo@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Also update generated dsdt and pcihp hex dump files.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* remotes/kvaneesh/for-upstream:
hw/9pfs: Include virtio-9p-device.o in build
hw/9pfs: use g_strdup_printf() instead of PATH_MAX limitation
hw/9pfs/virtio-9p-local.c: use snprintf() instead of sprintf()
hw/9pfs/virtio-9p-local.c: move v9fs_string_free() to below "err_out:"
fsdev: Fix overrun after readlink() fills buffer completely
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block patches
# gpg: Signature made Fri 07 Mar 2014 13:30:04 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream:
block: qemu-iotests 085 - live snapshots tests
hw/ide/ahci.h: Avoid shifting left into sign bit
block: Fix error path segfault in bdrv_open()
qemu-iotests: Test a few blockdev-add error cases
blockdev: Fix NULL pointer dereference in blockdev-add
blockdev: Fail blockdev-add with encrypted images
block/raw-win32: Strip "file:" prefix on creation
block/raw-win32: Implement bdrv_parse_filename()
block/raw-posix: Strip "file:" prefix on creation
block/raw-posix: Implement bdrv_parse_filename()
block: Keep "filename" option after parsing
block: mirror - remove code cruft that has no function
block: make bdrv_swap rebuild the bs graph node list field.
block: Fix bs->request_alignment assertion for bs->sg=1
iscsi: Use bs->sg for everything else than disks
qemu-iotests: Test progress output for conversion
qemu-img convert: Fix progress output
gluster: Remove unused defines and header include
gluster: Change licence to GPLv2+
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In commit 5643706a09 (console: add head
to index to qemu consoles.) graphic_console_init() was extended to take
an additional argument, but xenfb was not updated accordingly. Fix it.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Don Slutz <dslutz@verizon.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1394228528-31625-1-git-send-email-afaerber@suse.de
Add 'U' suffixes to avoid undefined behaviour shifting left into
the signed bit of a signed integer type. Clang's sanitizer will
warn about this:
hw/ide/ahci.c:1210:27: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Handle the new CCW_CMD_SET_IND_ADAPTER command enabling adapter interrupts
on guest request. When active, host->guest notifications will be handled
via global_indicator -> queue indicators instead of queue indicators +
subchannel I/O interrupt. Indicators for virtqueues may be present at an
offset.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This makes use of @cpu_dt_id and related API in:
1. emulated XICS hypercall handlers as they receive fixed CPU indexes;
2. XICS-KVM to enable in-kernel XICS on right CPU;
3. device-tree renderer.
This removes @cpu_index fixup as @cpu_dt_id is used instead so QEMU monitor
can accept command-line CPU indexes again.
This changes kvm_arch_vcpu_id() to use ppc_get_vcpu_dt_id() as at the moment
KVM CPU id and device tree ID are calculated using the same algorithm.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Mike Day <ncmike@ncultra.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Normally CPUState::cpu_index is used to pick the right CPU for various
operations. However default consecutive numbering does not always work
for POWERPC.
These indexes are reflected in /proc/device-tree/cpus/PowerPC,POWER7@XX
and used to call KVM VCPU's ioctls. In order to achieve this,
kvmppc_fixup_cpu() was introduced. Roughly speaking, it multiplies
cpu_index by the number of threads per core.
This approach has disadvantages such as:
1. NUMA configuration stays broken after the fixup;
2. CPU-targeted commands from the QEMU Monitor do not work properly as
CPU indexes have been fixed and there is no clear way for the user to
know what the new CPU indexes are.
This introduces a @cpu_dt_id field in the CPUPPCState struct which
is initialized from @cpu_index by default and can be fixed later
to meet the device tree requirements.
This adds an API to handle @cpu_dt_id.
This removes kvmppc_fixup_cpu() as it is not more needed, @cpu_dt_id
is calculated in ppc_cpu_realize().
This will be used later in machine code.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Mike Day <ncmike@ncultra.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
This patch introduces the hypervisor call H_GET_TCE which is basically the
reverse of H_PUT_TCE, as defined in the Power Architecture Platform
Requirements (PAPR).
The hcall H_GET_TCE is required by the kdump kernel which is calling it to
retrieve the TCE set up by the panicing kernel.
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
For updating in kernel htab we need to provide both pte0 and pte1, hence update
the interface to take pte0 and pte1 together
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[ ldq_phys() API change, Greg Kurz <gkurz@linux.vnet.ibm.com> ]
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
With kvm enabled, we store the hash page table information in the hypervisor.
Use ioctl to read the htab contents. Without this we get the below error when
trying to read the guest address
(gdb) x/10 do_fork
0xc000000000098660 <do_fork>: Cannot access memory at address 0xc000000000098660
(gdb)
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[ fixes for 32 bit build (casts!), ldq_phys() API change,
Greg Kurz <gkurz@linux.vnet.ibm.com ]
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Correctly update the htab_mask using the return value of
KVM_PPC_ALLOCATE_HTAB ioctl. Also we don't update sdr1
on GET_SREGS for HV. We check for external htab and if
found true, we don't need to update sdr1
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[ fixed pte group offset computation in ppc_hash64_htab_lookup() that
caused TCG to fail, Greg Kurz <gkurz@linux.vnet.ibm.com> ]
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
We currently size the msi window trap page according to the host's page
size so that we poke a working hole into a memory slot in case we overlap.
However, this is only ever necessary with KVM active. Without KVM, we should
rather try to be host platform agnostic and use a constant size: 4k.
This fixes a build breakage on win32 hosts.
Signed-off-by: Alexander Graf <agraf@suse.de>
When the guests adds buffers to receive queue, the network device
should flush its queue of pending packets. This is done with
qemu_flush_queued_packets.
This adds a call to qemu_flush_queued_packets() which wakes up the main
loop and let QEMU update the network device status which now is "can
receive". The patch basically does the same thing as e8b4c68 does.
Suggested-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
When we have 2 separate qdev devices that both create a qbus of the
same type without specifying a bus name or device name, we end up
with two buses of the same name, such as ide.0 on the Mac machines:
dev: macio-ide, id ""
bus: ide.0
type IDE
dev: macio-ide, id ""
bus: ide.0
type IDE
If we now spawn a device that connects to a ide.0 the last created
bus gets the device, with the first created bus inaccessible to the
command line.
After some discussion on IRC we concluded that the best quick fix way
forward for this is to make automated bus-class type based allocation
count a global counter. That's what this patch implements. With this
we instead get
dev: macio-ide, id ""
bus: ide.1
type IDE
dev: macio-ide, id ""
bus: ide.0
type IDE
on the example mentioned above.
This also means that if you did -device ...,bus=ide.0 you got a device
on the first bus (the last created one) before this patch and get that
device on the second one (the first created one) now. Breaks
migration unless you change bus=ide.0 to bus=ide.1 on the destination.
This is intended and makes the bus enumeration work as expected.
As per review request follows a list of otherwise affected boards and
the reasoning for the conclusion that they are ok:
target machine bus id times
------ ------- ------ -----
aarch64 n800 i2c-bus.0 2
aarch64 n810 i2c-bus.0 2
arm n800 i2c-bus.0 2
arm n810 i2c-bus.0 2
-> Devices are only created explicitly on one of the two buses, using
s->mpu->i2c[0], so no change to the guest.
aarch64 vexpress-a15 virtio-mmio-bus.0 4
aarch64 vexpress-a9 virtio-mmio-bus.0 4
aarch64 virt virtio-mmio-bus.0 32
arm vexpress-a15 virtio-mmio-bus.0 4
arm vexpress-a9 virtio-mmio-bus.0 4
arm virt virtio-mmio-bus.0 32
-> Makes -device bus= work for all virtio-mmio buses. Breaks
migration. Workaround for migration from old to new: specify
virtio-mmio-bus.4 or .32 respectively rather than .0 on the
destination.
aarch64 xilinx-zynq-a9 usb-bus.0 2
arm xilinx-zynq-a9 usb-bus.0 2
mips64el fulong2e usb-bus.0 2
-> Normal USB operation not affected. Migration driver needs command
line to use the other bus.
i386 isapc ide.0 2
x86_64 isapc ide.0 2
mips mips ide.0 2
mips64 mips ide.0 2
mips64el mips ide.0 2
mipsel mips ide.0 2
ppc g3beige ide.0 2
ppc mac99 ide.0 2
ppc prep ide.0 2
ppc64 g3beige ide.0 2
ppc64 mac99 ide.0 2
ppc64 prep ide.0 2
-> Makes -device bus= work for all IDE buses. Breaks migration.
Workaround for migration from old to new: specify ide.1 rather than
ide.0 on the destination.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Andreas Faerber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
We will use this in later patches to make sure we use the right load
functions when copying hpte entries.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This makes use of new error codes which load_elf() can return and
prints more informative error message.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
The existing load_elf() just returns -1 if it fails to load ELF. However
it could be smarter than this and tell more about the failure such as
wrong endianness or incompatible platform.
This adds additional return codes for wrong architecture, wrong
endianness and if the image is not ELF at all.
This adds a load_elf_strerror() helper to convert return codes into
string messages.
This fixes handling of what load_elf() returns for s390x, other
callers just check the return value for <0 and this remains unchanged.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
At the moment in the case of error, load_elf() returns -1 so load_kernel()
will not signal error at all.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
Currently everybody uses ELF kernel images with "-kernel" option on
pseries machine but QEMU still tries to boot from an image even it
fails to recognize it is ELF. This produces undefined behaviour if
the user tries a kernel image compiled for another architecture.
This removes support of raw kernel images.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
