Starting QEMU with -S results in current_cpu containing its initial
value of NULL. It is however possible to connect to such QEMU instance
and query various CPU registers, one example being CPUID, and doing that
results in QEMU segfaulting.
Using qemu_get_cpu(0) seem reasonable enough given that ARMv7M
architecture is a single core architecture.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
It doesn't make sense to pass a NULL ops argument to
memory_region_init_rom_device(), because the effect will
be that if the guest tries to write to the memory region
then QEMU will segfault. Catch the bug earlier by sanity
checking the arguments to this function, and remove the
misleading documentation that suggests that passing NULL
might be sensible.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1467122287-24974-4-git-send-email-peter.maydell@linaro.org
The imx boards were all incorrectly creating ROMs using
memory_region_init_rom_device() with a NULL ops pointer. This
will cause QEMU to abort if the guest tries to write to the
ROM. Switch to the new memory_region_init_rom() instead.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1467122287-24974-3-git-send-email-peter.maydell@linaro.org
Provide a new helper function memory_region_init_rom() for memory
regions which are read-only (and unlike those created by
memory_region_init_rom_device() don't have special behaviour
for writes). This has the same behaviour as calling
memory_region_init_ram() and then memory_region_set_readonly()
(which is what we do today in boards with pure ROMs) but is a
more easily discoverable API for the purpose.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1467122287-24974-2-git-send-email-peter.maydell@linaro.org
SYS_HEAPINFO is one of the few semihosting calls which has to write
values back into a parameter block in memory. When we added
support for 64-bit semihosting we updated the code which reads from
the parameter block to read 64-bit words but forgot to change the
code that writes back into the block. Update it to treat the
block as a set of words of the appropriate width for the guest.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1466783381-29506-3-git-send-email-peter.maydell@linaro.org
The fields in the TaskState heap_base, heap_limit and stack_base
are all guest addresses (representing the locations of the heap
and stack for the guest binary), so they should be abi_ulong
rather than uint32_t. (This only in practice affects ARM AArch64
since all the other semihosting implementations are 32-bit.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Message-id: 1466783381-29506-2-git-send-email-peter.maydell@linaro.org
This reverts commit 1f8828ef57.
Cc: qemu-stable@nongnu.org
Reported-by: Robin Geuze <robing@transip.nl>
Tested-by: Robin Geuze <robing@transip.nl>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio migrates the low 32 feature bits twice, the first copy is there
for compatibility but ever since
019a3edbb25f1571e876f8af1ce4c55412939e5d: ("virtio: make features 64bit
wide") it's ignored on load. This is wrong since virtio_net_load tests
self announcement and guest offloads before the second copy including
high feature bits is loaded. This means that self announcement, control
vq and guest offloads are all broken after migration.
Fix it up by loading low feature bits: somewhat ugly since high and low
bits become out of sync temporarily, but seems unavoidable for
compatibility. The right thing to do for new features is probably to
test the host features, anyway.
Fixes: 019a3edbb2
("virtio: make features 64bit wide")
Cc: qemu-stable@nongnu.org
Reported-by: Robin Geuze <robing@transip.nl>
Tested-by: Robin Geuze <robing@transip.nl>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The host notifier rework tried both to unify host notifiers across
transports and plug a possible hole during host notifier
re-assignment. Unfortunately, this meant a change in semantics that
breaks vhost and iSCSI+dataplane.
As the minimal fix, keep the common host notifier code but revert
to the old semantics so that we have time to figure out the proper
fix.
Fixes: 6798e245a3 ("virtio-bus: common ioeventfd infrastructure")
Reported-by: Peter Lieven <pl@kamp.de>
Reported-by: Jason Wang <jasowang@redhat.com>
Reported-by: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Tested-by: Jason Wang <jasowang@redhat.com>
Tested-by: Peter Lieven <pl@kamp.de>
PcPciInfo has two (ill-named) members: Range w32 is the PCI hole, and
w64 is the PCI64 hole.
Three users:
* I440FXState and MCHPCIState have a member PcPciInfo pci_info, but
only pci_info.w32 is actually used. This is confusing. Replace by
Range pci_hole.
* acpi_build() uses auto PcPciInfo pci_info to forward both PCI holes
from acpi_get_pci_info() to build_dsdt(). Replace by two variables
Range pci_hole, pci_hole64. Rename acpi_get_pci_info() to
acpi_get_pci_holes().
PcPciInfo is now unused; drop it.
Signed-off-by: Markus Armbruster <armbru@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>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Range pci_info.w32 records the location of the PCI hole.
It's initialized to empty when QOM zeroes I440FXState. That's a fine
value for a still unknown PCI hole.
i440fx_init() sets pci_info.w32.begin = below_4g_mem_size. Changes
the PCI hole from empty to [below_4g_mem_size, UINT64_MAX]. That's a
bogus value.
i440fx_pcihost_initfn() sets pci_info.end = IO_APIC_DEFAULT_ADDRESS.
Since i440fx_init() ran already, this changes the PCI hole to
[below_4g_mem_size, IO_APIC_DEFAULT_ADDRESS-1]. That's the correct
value.
Setting the bounds of the PCI hole in two separate places is
confusing, and begs the question whether the bogus intermediate value
could be used by something, or what would happen if we somehow managed
to realize an i440FX device without having run the board init function
i440fx_init() first.
Avoid the confusion by setting the (constant) upper bound along with
the lower bound in i440fx_init().
Signed-off-by: Markus Armbruster <armbru@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>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Since iommu devices can be created with '-device' there is
no need to keep iommu as machine and mch property.
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Use the standard '-device intel-iommu' to create the IOMMU device.
The legacy '-machine,iommu=on' can still be used.
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Allow adding sysbus devices with -device on Q35.
At first Q35 will support only intel-iommu to be added this way,
however the command line will support all sysbus devices.
Mark with 'cannot_instantiate_with_device_add_yet' the ones
causing immediate problems (e.g. crashes).
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Skip bus_master_enable region creation on PCI device init
in order to be sure the IOMMU device (if present) would
be created in advance. Add this memory region at machine_done time.
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Mac99's PCI root bus is not part of a host bridge,
realize it manually.
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Commit "8156d48 pc: allow raising low memory via max-ram-below-4g
option" causes a regression on xen, because it uses a different
memory split.
This patch initializes max-ram-below-4g to zero and leaves the
initialization to the memory initialization functions. That way
they can pick different default values (max-ram-below-4g is zero
still) or use the user supplied value (max-ram-below-4g is non-zero).
Also skip the whole ram split calculation on Xen. xen_ram_init()
does its own split calculation anyway so it is superfluous, also
this way xen_ram_init can actually see whenever max-ram-below-4g
is zero or not.
Reported-by: Anthony PERARD <anthony.perard@citrix.com>
Tested-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Currently the internal hash code is using the gnutls hash APIs.
GNUTLS in turn is wrapping either nettle or gcrypt. Not only
were the GNUTLS hash APIs not added until GNUTLS 2.9.10, but
they don't expose support for all the algorithms QEMU needs
to use with LUKS.
Address this by directly wrapping nettle/gcrypt in QEMU and
avoiding GNUTLS's extra layer of indirection. This gives us
support for hash functions on a much wider range of platforms
and opens up ability to support more hash functions. It also
avoids a GNUTLS bug which would not correctly handle hashing
of large data blocks if int != size_t.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
On MinGW one of the system headers already has "OUT" defined
which causes a compile failure of the test suite. Rename the
test suite var to 'out' to avoid this clash
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
When opening an existing LUKS volume, if the iv generator is
essiv, then the iv hash algorithm is mandatory to provide. We
must report an error if it is omitted in the cipher mode spec,
not silently default to hash 0 (md5). If the iv generator is
not essiv, then we explicitly ignore any iv hash algorithm,
rather than report an error, for compatibility with dm-crypt.
When creating a new LUKS volume, if the iv generator is essiv
and no iv hsah algorithm is provided, we should default to
using the sha256 hash.
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit adds a fast variant of SeaBIOS called 'bios-fast.bin'.
It's designed to be the fastest (also the smallest, but that's not the
main aim) SeaBIOS that is just enough to boot a Linux kernel using the
-kernel option on i686 and x86_64.
This commit does not modify the -kernel option to use this. You have
to specify it by doing something like this:
-kernel vmlinuz -bios bios-fast.bin
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
git shortlog
============
Alex Williamson (1):
fw/pci: Add support for mapping Intel IGD via QEMU
Haozhong Zhang (1):
fw/msr_feature_control: add support to set MSR_IA32_FEATURE_CONTROL
Kevin O'Connor (1):
build: fix .text section address alignment
Marcel Apfelbaum (1):
fw/pci: add Q35 S3 support
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Provide basic support for stateless DHCPv6 (see RFC 3736) so
that guests can also automatically boot via IPv6 with SLIRP
(for IPv6 network booting, see RFC 5970 for details).
Tested with:
qemu-system-ppc64 -nographic -vga none -boot n -net nic \
-net user,ipv6=yes,ipv4=no,tftp=/path/to/tftp,bootfile=ppc64.img
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Commit fad7fb9ccd ("Add IPv6 support to the TFTP code")
refactored some common code for preparing the mbuf into a new
function called tftp_prep_mbuf_data(). One part of this common
code is to do a "memset(m->m_data, 0, m->m_size);" for the related
buffer first. However, at two spots, the memset() was not removed
from the calling function, so it currently done twice in these code
paths. Thus let's delete these superfluous memsets in the calling
functions now.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
This adds the RDNSS option to IPv6 router advertisements, so that the guest
can autoconfigure the DNS server address.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
---
Changes since last submission:
- Disable on windows, until we have support for it
They look like fe80::%eth0
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
---
Changes since last submission:
- fix windows build
This makes get_dns_addr address family-agnostic, thus allowing to add the
IPv6 case.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Separate get_dns_addr into get_dns_addr_cached and get_dns_addr_resolv_conf
to make conversion to IPv6 easier.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
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Merge remote-tracking branch 'remotes/gkurz/tags/for-upstream' into staging
Only trivial fixes.
# gpg: Signature made Fri 01 Jul 2016 13:39:06 BST
# gpg: using DSA key 0x02FC3AEB0101DBC2
# gpg: Good signature from "Greg Kurz <gkurz@fr.ibm.com>"
# gpg: aka "Greg Kurz <groug@free.fr>"
# gpg: aka "Greg Kurz <gkurz@linux.vnet.ibm.com>"
# gpg: aka "Gregory Kurz (Groug) <groug@free.fr>"
# gpg: aka "Gregory Kurz (Cimai Technology) <gkurz@cimai.com>"
# gpg: aka "Gregory Kurz (Meiosys Technology) <gkurz@meiosys.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: 2BD4 3B44 535E C0A7 9894 DBA2 02FC 3AEB 0101 DBC2
* remotes/gkurz/tags/for-upstream:
9p: synth: drop v9fs_ prefix
9p: don't include <sys/uio.h>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The <sys/uio.h> system header doesn't exist on all host platforms. Code
should include "qemu/osdep.h" instead to avoid build breaks on plafforms
that don't define CONFIG_IOVEC (like win32, if it is to support 9p one day).
Acked-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Michael Fritscher <michael@fritscher.net>
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Here's the current ppc patch queue. This is a fairly large batch,
containing:
* A number of further preliminary patches towards full hypervisor
mode emulation
* Some further fixes / cleanups for the recently merged device_add
based CPU hotplug
* Preliminary patches towards supporting a native (rather than
paravirtualized) XICS device. This will be needed to emulate a
physical Power machine, including hypervisor capabilities
* Assorted bug fixes
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.7-20160701' into staging
ppc patch queue 2016-07-01
Here's the current ppc patch queue. This is a fairly large batch,
containing:
* A number of further preliminary patches towards full hypervisor
mode emulation
* Some further fixes / cleanups for the recently merged device_add
based CPU hotplug
* Preliminary patches towards supporting a native (rather than
paravirtualized) XICS device. This will be needed to emulate a
physical Power machine, including hypervisor capabilities
* Assorted bug fixes
# gpg: Signature made Fri 01 Jul 2016 06:56:35 BST
# gpg: using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-2.7-20160701: (23 commits)
qmp: fix spapr example of query-hotpluggable-cpus
spapr: drop duplicate variable in spapr_core_release()
spapr: do proper error propagation in spapr_cpu_core_realize_child()
spapr: drop reference on child object during core realization
spapr: Restore support for 970MP and POWER8NVL CPU cores
target-ppc: gen_pause for instructions: yield, mdoio, mdoom, miso
ppc/xics: Replace "icp" with "xics" in most places
ppc/xics: Implement H_IPOLL using an accessor
ppc/xics: Move SPAPR specific code to a separate file
ppc/xics: Rename existing xics to xics_spapr
ppc: Fix 64K pages support in full emulation
target-ppc: Eliminate redundant and incorrect function booke206_page_size_to_tlb
spapr: Restore support for older PowerPC CPU cores
spapr: fix write-past-end-of-array error in cpu core device init code
hw/ppc/spapr: Add some missing hcall function set strings
ppc: Print HSRR0/HSRR1 in "info registers"
ppc: LPCR is a HV resource
ppc: Initial HDEC support
ppc: Enforce setting MSR:EE,IR and DR when MSR:PR is set
ppc: Fix conditions for delivering external interrupts to a guest
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
... so configure re-runs on pc-bios updates such as new pxe roms.
Needed because configure symlinks the prebuilt roms from src
into build tree.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
27393c33 qapi: keep names in 'CpuInstanceProperties' in sync with struct CPUCore
added -id suffix to property names but forgot to fix example in qmp-commands.hx
Fix example to have 'core-id' instead of 'core' to match current code
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This patch changes spapr_cpu_core_realize_child() to have a local error
pointer and use error_propagate() as it is supposed to be done.
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
When a core is being realized, we create a child object for each thread
of the core.
The child is first initialized with object_initialize() which sets its ref
count to 1, and then added to the core with object_property_add_child()
which bumps the ref count to 2.
When the core gets released, object_unparent() decreases the ref count to 1,
and we g_free() the object: we hence loose the reference on an unfinalized
object. This is likely to cause random crashes.
Let's drop the extra reference as soon as we don't need it, after the
thread is added to the core.
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Introduction of core based CPU hotplug for PowerPC sPAPR didn't
add support for 970MP and POWER8NVL based core types. Add support for
the same.
While we are here, add support for explicit specification of POWER5+_v2.1
core type.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Call gen_pause for all "or rx,rx,rx" encodings other nop. This
provides a reasonable implementation for yield, and a better
approximation for mdoio, mdoom, and miso. The choice to pause for all
encodings !=0 leverages the PowerISA admonition that the reserved
encodings might change program priority, providing a slight "future
proofing".
Signed-off-by: Aaron Larson <alarson@ddci.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The "ICP" is a different object than the "XICS". For historical reasons,
we have a number of places where we name a variable "icp" while it contains
a XICSState pointer. There *is* an ICPState structure too so this makes
the code really confusing.
This is a mechanical replacement of all those instances to use the name
"xics" instead. There should be no functional change.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[spapr_cpu_init has been moved to spapr_cpu_core.c, change there]
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
None of the other presenter functions directly mucks with the
internal state, so don't do it there either.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Leave the core ICP/ICS logic in xics.c and move the top level
class wrapper, hypercall and RTAS handlers to xics_spapr.c
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[add cpu.h in xics_spapr.c, move set_nr_irqs and set_nr_servers to
xics_spapr.c]
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The common class doesn't change, the KVM one is sPAPR specific. Rename
variables and functions to xics_spapr.
Retain the type name as "xics" to preserve migration for existing sPAPR
guests.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Andrey Smirnov