Since commit
dd0247e0 pc: acpi: mark all possible CPUs as enabled in SRAT
Linux kernel actually tries to use CPU to Node mapping from
QEMU provided SRAT table instead of discarding it, and that
in some cases breaks build_sched_domains() which expects
sane mapping where cores/threads belonging to the same socket
are on the same NUMA node.
With current default round-robin mapping of VCPUs to nodes
guest ends-up with cores/threads belonging to the same socket
being on different NUMA nodes.
For example with following CLI:
qemu-system-x86_64 -m 4G \
-cpu Opteron_G3,vendor=AuthenticAMD \
-smp 5,sockets=1,cores=4,threads=1,maxcpus=8 \
-numa node,nodeid=0 -numa node,nodeid=1
2.6.32 based kernels will hang on boot due to incorrectly built
sched_group-s list in update_sd_lb_stats()
Replacing default mapping with a manual, where VCPUs belonging to
the same socket are on the same NUMA node, fixes the issue for
guests which can't handle nonsense topology i.e. changing CLI to:
-numa node,nodeid=0,cpus=0-3 -numa node,nodeid=1,cpus=4-7
So instead of simply scattering VCPUs around nodes, provide
callback to map the same socket VCPUs to the same NUMA node,
which is what guests would expect from a sane hardware/BIOS.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Current default round-robin way of distributing VCPUs among
NUMA nodes might be wrong in case on multi-core/threads
CPUs. Making guests confused wrt topology where cores from
the same socket are on different nodes.
Allow a machine to override default mapping by providing
MachineClass::cpu_index_to_socket_id()
callback which would allow it group VCPUs from a socket
on the same NUMA node.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Each CPU can appear in only one NUMA node on the NUMA config. Reject
configuration if a CPU appears in multiple nodes.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
CPU index is always less than max_cpus, as documented at sysemu.h:
> The following shall be true for all CPUs:
> cpu->cpu_index < max_cpus <= MAX_CPUMASK_BITS
Reject configuration which uses invalid CPU indexes.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Fix the CPU index check to ensure we don't go beyond the size of the
node_cpu bitmap.
CPU index is always less than MAX_CPUMASK_BITS, as documented at
sysemu.h:
> The following shall be true for all CPUs:
> cpu->cpu_index < max_cpus <= MAX_CPUMASK_BITS
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Error classes are a leftover from the days of "rich" error objects.
New code should always use ERROR_CLASS_GENERIC_ERROR. Commit
b7b9d39..7c6a4ab added uses of ERROR_CLASS_DEVICE_NOT_FOUND. Replace
them.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Changes:
* bug fixes
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Merge remote-tracking branch 'remotes/lalrae/tags/mips-20150318' into staging
MIPS patches 2015-03-18
Changes:
* bug fixes
# gpg: Signature made Wed Mar 18 10:06:00 2015 GMT using RSA key ID 0B29DA6B
# gpg: Can't check signature: public key not found
* remotes/lalrae/tags/mips-20150318:
target-mips: save cpu state before calling MSA load and store helpers
target-mips: fix hflags modified in delay / forbidden slot
target-mips: fix CP0.BadVAddr by stopping translation on Address Error
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-vnc-20150318-1' into staging
vnc: fix websockets & QMP.
# gpg: Signature made Wed Mar 18 13:12:35 2015 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-vnc-20150318-1:
ui: ensure VNC websockets server checks the ACL if requested
ui: remove separate gnutls_session for websockets server
ui: enforce TLS when using websockets server
ui: fix setup of VNC websockets auth scheme with TLS
ui: split setup of VNC auth scheme into separate method
ui: report error if user requests VNC option that is unsupported
ui: replace printf() calls with VNC_DEBUG
ui: remove unused 'wiremode' variable in VncState struct
vnc: Fix QMP change not to use funky error class
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Users of virtio-serial may want to know when a port becomes writable. A
port can stop accepting writes if the guest port is open but not being
read from. In this case, data gets queued up in the virtqueue, and
after the vq is full, writes to the port do not succeed.
When the guest reads off a vq element, and adds a new one for the host
to put data in, we can tell users the port is available for more writes,
via the new ->guest_writable() callback.
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Currently, if the user requests aio=native, but forgets to choose a
cache mode that sets O_DIRECT, that request is silently ignored and raw
falls back to aio=threads.
Deprecate that behaviour so we can make it an error in future qemu
versions.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Just a bunch of bugfixes. Should be nothing remarkable here.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pci, virtio bugfixes for 2.3
Just a bunch of bugfixes. Should be nothing remarkable here.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Wed Mar 18 12:31:03 2015 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:
pcie_aer: fix comment to match pcie spec
pci: fix several trivial typos in comment
aer: fix a wrong init PCI_ERR_COR_STATUS w1cmask type register
pcie_aer: fix typos in pcie_aer_inject_error comment
aer: fix wrong check on expose aer tlp prefix log
pcie: correct mistaken register bit for End-End TLP Prefix Blocking
virtio: Fix memory leaks reported by Coverity
virtio: validate the existence of handle_output before calling it
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Raise your hand if you have a physical floppy drive in a computer
you've powered on in 2015. Okay, I see we got a few weirdos in the
audience. That's okay, weirdos are welcome here.
Kidding aside, media change detection doesn't fully work, isn't going
to be fixed, and floppy passthrough just isn't earning its keep
anymore.
Deprecate block driver host_floppy now, so we can drop it after a
grace period.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
- virtio-scsi: misc fixes
- fix for --enable-profiler
- nbd: fixes from Max
- build: fix for scripts/make_device_config.sh
- exec: fix for address_space_translate
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
- kvm: ioeventfd fix for PPC64LE
- virtio-scsi: misc fixes
- fix for --enable-profiler
- nbd: fixes from Max
- build: fix for scripts/make_device_config.sh
- exec: fix for address_space_translate
# gpg: Signature made Wed Mar 18 11:11:08 2015 GMT using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@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: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* remotes/bonzini/tags/for-upstream:
exec: Respect as_tranlsate_internal length clamp
virtio-scsi-dataplane: fix memory leak in virtio_scsi_vring_init
profiler: Reenable built-in profiler
kvm: fix ioeventfd endianness on bi-endian architectures
virtio-scsi: Fix assert in virtio_scsi_push_event
build: pass .d file name to scripts/make_device_config.sh, fix makefile target
coroutine-io: Return -errno in case of error
nbd: Drop unexpected data for NBD_OPT_LIST
nbd: Fix interpretation of the export flags
nbd: Fix nbd_receive_options()
nbd: Set block size to BDRV_SECTOR_SIZE
nbd: Fix potential signed overflow issues
qemu-nbd: fork() can fail
nbd: Handle blk_getlength() failure
nbd: Pass return value from nbd_handle_list()
nbd: Fix nbd_establish_connection()'s return value
qemu-nbd: Detect unused partitions by system == 0
util/uri: Add overflow check to rfc3986_parse_port
nbd: Fix overflow return value
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
It's detected by coverity. Close the dirfd.
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This fixes a warning from Coverity.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Coverity reports a truncation due to cast operation on operand
reltab->sh_size from 64 bits to 32 bits for calls of load_at.
Fix the types of the function arguments to match their use in
function load_at: the offset is used for lseek which takes an
off_t parameter, the size is used for g_malloc and read.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Several issues:
* Commands i and o lack @item. Their one-liner documentation gets
squashed into the preceding command print. Add the obvious @item.
* Commands i, o and cpu-add lack @findex. The function index doesn't
have them. Add the obvious @findex.
* Commit 727f005 put block_set_io_throttle was added in the middle of
block_passwd. Move it.
* Correct spelling of commands chardev-add and chardev-remove in @item
and @findex.
* Some commands have a blank line between @item/@findex and the text,
most don't. Normalize to no blank line.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
A thinko that clang 3.5.0 caught.
Thankfully does not introduce any new failures.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
monitor_fdset_add_fd returns an AddfdInfo struct (used by the QMP
command add_fd). Free it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The pc-dimm option presented on device list (by argument "-device \?")
is the unique option that don't have any information about it. This
patch adds a description for the pc-dimm device to help users to
identify it.
Signed-off-by: Paulo Vital <paulo.vital@profitbricks.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Here's a trivial change to enable kvm on x32 architecture.
I'm not 100% sure the result works correctly in all cases,
but this is a good start and in theory everything should
work.
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
This is a continuation of the work started in commit 565f65d27:
"error: Use error_report_err() where appropriate"
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: Michael Tokarev <mjt@tls.msk.ru>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
.user_print isn't used with QMP commands, only with HMP commands.
Copied over when QMP got its own command table in commit 82a56f0.
Most of them have been dropped since, but a few stragglers remain.
Drop them.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The command handler is a union of two function types. If
cmd->user_print is set, handle_user_command() calls
cmd->mhandler.cmd_new(), else cmd->mhandler.cmd().
Command definitions must therefore either set both user_print() and
mhandler.cmd_new(), or only mhandler.cmd().
quit's sets user_print and mhandler.cmd(). handle_user_command()
calls hmp_quit() through mhandler.cmd_new() rather than
mhandler.cmd(), i.e. through a function pointer with a different type.
Broken in commit 7a7f325, v1.0.
Works in practice because hmp_quit() doesn't use its arguments, and
handle_user_command() ignores its function value.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Report from Sparse:
target-moxie/mmu.h:9:12: error: dubious one-bit signed bitfield
target-moxie/mmu.h:10:12: error: dubious one-bit signed bitfield
target-moxie/mmu.h:11:12: error: dubious one-bit signed bitfield
target-moxie/mmu.h:12:12: error: dubious one-bit signed bitfield
target-moxie/mmu.h:13:12: error: dubious one-bit signed bitfield
Cc: Anthony Green <green@moxielogic.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Sparse reports this warning:
block/qapi.c:417:47: warning:
too long initializer-string for array of char(no space for nul char)
Replacing the string by an array of characters fixes this warning.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Sparse report:
qom/cpu.c:99:5: warning: returning void-valued expression
Cc: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Sparse report:
backends/tpm.c:39:5: warning: returning void-valued expression
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Code comment says "table 6-2" but in fact it's is not a table, it is
"Figure 6-2" on page 479.
Cc: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Error Status Register, so this patch fix a wrong definition
for PCI_ERR_COR_STATUS register with w1cmask type.
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Refer to "PCI Express Base Spec3.0", this comments can't
fit the description in spec, so we should fix them.
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
when specify TLP Prefix log as using pcie_aer_inject_error,
the TLP prefix log is always discarded. because the check
is incorrect, the End-End TLP Prefix Supported bit
(PCI_EXP_DEVCAP2_EETLPP) should be in Device Capabilities 2 Register.
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
from pcie spec 7.8.17, the End-End TLP Prefix Blocking bit local
is 15(e.g. 0x8000) in device control 2 register.
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
address_space_translate_internal will clamp the *plen length argument
based on the size of the memory region being queried. The iommu walker
logic in addresss_space_translate was ignoring this by discarding the
post fn call value of *plen. Fix by just always using *plen as the
length argument throughout the fn, removing the len local variable.
This fixes a bootloader bug when a single elf section spans multiple
QEMU memory regions.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-Id: <1426570554-15940-1-git-send-email-peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
if k->set_host_notifier failed, VirtIOSCSIVring *r will leak
Signed-off-by: Bo Su <subo7@huawei.com>
Message-Id: <1426671732-80213-1-git-send-email-subo7@huawei.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2ed1ebcf6 "timer: replace time() with QEMU_CLOCK_HOST" broke compile
when configured with --enable-profiler. Turned out the profiler has been
broken for a while.
This does s/qemu_time/tcg_time/ as the profiler only works in a TCG mode.
This also fixes the compile error.
This changes profile_getclock() to return nanoseconds rather than
CPU ticks as the "profile" HMP command prints seconds and there is no
platform-independent way to get ticks-per-second rate.
Since TCG is quite slow and get_clock() returns nanoseconds (fine
enough), this should not affect precision much.
This removes unused qemu_time_start and tlb_flush_time.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <1426478258-29961-1-git-send-email-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
KVM expects host endian values. Hosts that don't use the default endianness
need to negate the swap performed in adjust_endianness().
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Message-Id: <20150313212337.31142.3991.stgit@bahia.local>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
