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heterogeneous cpus are not supported and hotplugging different
cpu model crashes QEMU:
qemu-system-x86_64 -cpu qemu64 -smp 1,maxcpus=2
(qemu) device_add host-x86_64-cpu,socket-id=1,core-id=0,thread-id=0,id=foo
(qemu) info cpus
error: failed to get MSR 0x38d
qemu-system-x86_64: target/i386/kvm.c:2121: kvm_get_msrs: Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed.
Aborted (core dumped)
Gracefully fail hotplug process in case of user mistake.
Reported-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1507638879-200718-1-git-send-email-imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This patch fixes an off-by-one error that could lead to the
notifyee to receive notifications for ranges it is not
registered to.
The bug has been spotted by code review.
Fixes: bd2bfa4c52e5 ("memory: introduce memory_region_notify_one()")
Cc: qemu-stable@nongnu.org
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Message-Id: <20171010094247.10173-4-maxime.coquelin@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This patch let address_space_get_iotlb_entry() to use the newly
introduced page_mask parameter in flatview_do_translate(). Then we
will be sure the IOTLB can be aligned to page mask, also we should
nicely support huge pages now when introducing a764040.
Fixes: a764040 ("exec: abstract address_space_do_translate()")
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20171010094247.10173-3-maxime.coquelin@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The function is originally used for flatview_space_translate() and what
we care about most is (xlat, plen) range. However for iotlb requests, we
don't really care about "plen", but the size of the page that "xlat" is
located on. While, plen cannot really contain this information.
A simple example to show why "plen" is not good for IOTLB translations:
E.g., for huge pages, it is possible that guest mapped 1G huge page on
device side that used this GPA range:
0x100000000 - 0x13fffffff
Then let's say we want to translate one IOVA that finally mapped to GPA
0x13ffffe00 (which is located on this 1G huge page). Then here we'll
get:
(xlat, plen) = (0x13fffe00, 0x200)
So the IOTLB would be only covering a very small range since from
"plen" (which is 0x200 bytes) we cannot tell the size of the page.
Actually we can really know that this is a huge page - we just throw the
information away in flatview_do_translate().
This patch introduced "page_mask" optional parameter to capture that
page mask info. Also, I made "plen" an optional parameter as well, with
some comments for the whole function.
No functional change yet.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Message-Id: <20171010094247.10173-2-maxime.coquelin@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The tcp_chr_free_connection & tcp_chr_disconnect methods both
skip all of their cleanup work unless the 's->connected' flag
is set. This flag is set when the incoming client connection
is ready to use. Crucially this is *after* the TLS handshake
has been completed. So if the TLS handshake fails and we try
to cleanup the failed client, all the cleanup is skipped as
's->connected' is still false.
The only important thing that should be skipped in this case
is sending of the CHR_EVENT_CLOSED, because we never got as
far as sending the corresponding CHR_EVENT_OPENED. Every other
bit of cleanup can be robust against being called even when
s->connected is false.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <20171005155057.7664-1-berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The Linux kernel will query the ATA IDENTITY DEVICE data, word 217
to determine the rotations per minute of the disk. If this has
the value 1, it is taken to be an SSD and so Linux sets the
'rotational' flag to 0 for the I/O queue and will stop using that
disk as a source of random entropy. Other operating systems may
also take into account rotation rate when setting up default
behaviour.
Mgmt apps should be able to set the rotation rate for virtualized
block devices, based on characteristics of the host storage in use,
so that the guest OS gets sensible behaviour out of the box. This
patch thus adds a 'rotation-rate' parameter for 'ide-hd' device
types.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <20171004114008.14849-3-berrange@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The Linux kernel will query the SCSI "Block device characteristics"
VPD to determine the rotations per minute of the disk. If this has
the value 1, it is taken to be an SSD and so Linux sets the
'rotational' flag to 0 for the I/O queue and will stop using that
disk as a source of random entropy. Other operating systems may
also take into account rotation rate when setting up default
behaviour.
Mgmt apps should be able to set the rotation rate for virtualized
block devices, based on characteristics of the host storage in use,
so that the guest OS gets sensible behaviour out of the box. This
patch thus adds a 'rotation-rate' parameter for 'scsi-hd' and
'scsi-block' device types. For the latter, this parameter will be
ignored unless the host device has TYPE_DISK.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <20171004114008.14849-2-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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stgit produces patch files that lack the ".patch" extensions. Others
might be using ".diff" too. But since we are already limiting source files
to only a handful of extensions, we can reuse that in the mode selection
code.
While at it, do not match "../foo" as a branch name.
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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'remotes/ehabkost/tags/python-next-pull-request' into staging
Python queue, 2017-10-11
# gpg: Signature made Wed 11 Oct 2017 19:49:40 BST
# gpg: using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6
* remotes/ehabkost/tags/python-next-pull-request:
scripts: Remove debug parameter from QEMUMachine
scripts: Remove debug parameter from QEMUMonitorProtocol
guestperf: Configure logging on all shell frontends
basevm: Call logging.basicConfig()
iotests: Set up Python logging
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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All scripts that use the QEMUMachine and QEMUQtestMachine classes
(device-crash-test, tests/migration/*, iotests.py, basevm.py)
already configure logging.
The basicConfig() call inside QEMUMachine.__init__() is being
kept just to make sure a script would still work if it didn't
configure logging.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20171005172013.3098-4-ehabkost@redhat.com>
Reviewed-by: Lukáš Doktor <ldoktor@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Use logging module for the QMP debug messages. The only scripts
that set debug=True are iotests.py and guestperf/engine.py, and
they already call logging.basicConfig() to set up logging.
Scripts that don't configure logging are safe as long as they
don't need debugging output, because debug messages don't trigger
the "No handlers could be found for logger" message from the
Python logging module.
Scripts that already configure logging but don't use debug=True
(e.g. scripts/vm/basevm.py) will get QMP debugging enabled for
free.
Cc: "Alex Bennée" <alex.bennee@linaro.org>
Cc: Fam Zheng <famz@redhat.com>
Cc: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20171005172013.3098-3-ehabkost@redhat.com>
Reviewed-by: Lukáš Doktor <ldoktor@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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The logging module will eventually replace the 'debug' parameter
in QEMUMachine and QEMUMonitorProtocol.
Cc: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20171005172013.3098-2-ehabkost@redhat.com>
Reviewed-by: Lukáš Doktor <ldoktor@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Just setting level=DEBUG when debug is enabled is not enough: we
need to set up a log handler if we want debug messages generated
using logging.getLogger(...).debug() to be printed.
This was not a problem before because logging.debug() calls
logging.basicConfig() implicitly, but it's safer to not rely on
that.
Cc: "Alex Bennée" <alex.bennee@linaro.org>
Cc: Fam Zheng <famz@redhat.com>
Cc: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170927130339.21444-4-ehabkost@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Lukáš Doktor <ldoktor@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Set up Python logging module instead of relying on
QEMUMachine._debug to enable debugging messages.
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Cc: qemu-block@nongnu.org
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170927130339.21444-3-ehabkost@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Lukáš Doktor <ldoktor@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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staging
# gpg: Signature made Tue 10 Oct 2017 22:33:56 BST
# gpg: using RSA key 0xDAE8E10975969CE5
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>"
# gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>"
# 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: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5
* remotes/elmarco/tags/vus-pull-request: (27 commits)
vhost-user-scsi: remove server_sock from VusDev
vhost-user-scsi: use libvhost-user glib helper
libvhost-user: add glib source helper
vhost-user-scsi: use glib logging
vhost-user-scsi: simplify source handling
vhost-user-scsi: drop extra callback pointer
vhost-user-scsi: don't copy iscsi/scsi-lowlevel.h
vhost-user-scsi: avoid use of iscsi_ namespace
vhost-user-scsi: rename VUS types
vhost-user-scsi: remove unimplemented functions
vhost-user-scsi: remove VUS_MAX_LUNS
vhost-user-scsi: remove vdev_scsi_add_iscsi_lun()
vhost-user-scsi: assert() in iscsi_add_lun()
vhost-user-scsi: use NULL pointer
vhost-user-scsi: simplify unix path cleanup
vhost-user-scsi: remove vdev_scsi_find_by_vu()
vhost-user-scsi: also free the gtree
vhost-user-scsi: glib calls that allocate don't return NULL
vhost-user-scsi: use glib allocation
vhost-user-scsi: code style fixes
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Queued TCG patches
# gpg: Signature made Tue 10 Oct 2017 20:23:12 BST
# gpg: using RSA key 0x64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* remotes/rth/tags/pull-tcg-20171010:
tcg/mips: delete commented out extern keyword.
tcg: define TCG_HIGHWATER
util: move qemu_real_host_page_size/mask to osdep.h
tcg: take .helpers out of TCGContext
tci: move tci_regs to tcg_qemu_tb_exec's stack
exec-all: extract tb->tc_* into a separate struct tc_tb
translate-all: define and use DEBUG_TB_CHECK_GATE
translate-all: define and use DEBUG_TB_INVALIDATE_GATE
exec-all: introduce TB_PAGE_ADDR_FMT
translate-all: define and use DEBUG_TB_FLUSH_GATE
exec-all: bring tb->invalid into tb->cflags
tcg: consolidate TB lookups in tb_lookup__cpu_state
tcg: remove addr argument from lookup_tb_ptr
tcg/mips: constify tcg_target_callee_save_regs
tcg/i386: constify tcg_target_callee_save_regs
cpu-exec: rename have_tb_lock to acquired_tb_lock in tb_find
translate-all: make have_tb_lock static
exec-all: fix typos in TranslationBlock's documentation
tcg: fix corruption of code_time profiling counter upon tb_flush
cputlb: bring back tlb_flush_count under !TLB_DEBUG
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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It is unneeded in the VusDev device structure, and also simplify a bit
the code.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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This file implements a bridge from the vu_init API of libvhost-user to
GSource, so that libvhost-user can be used inside a GLib main loop.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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- PLOG is unused
- code is compiled out unless debug is enabled
- logging is too verbose
- you can pipe to ts to have timestamp if needed, or use structured
logging with more recent glib
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Using a hashtable.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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Use the one from the source with casting, like any other glib source.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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There is no need to include hw/virtio/virtio-scsi.h, then the conflict
with SCSI_XFER enum goes away.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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It is confusing and could easily conflict with future versions.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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- use Vus prefix consistently
- use CamelCase, since that's glib & libvhost-user style
- avoid _t postfix, usually for system headers
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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There is no code to support more than 1 yet, no need for that today.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Instead of a preliminary check, add an assert to the function that has
the pre-condition.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Always remove the unix path when leaving the program (instead of when
freeing scsi_dev). Note that unix_sock_new() also unlink() exisiting
path before creating the socket.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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The *dev pointer belongs to the vhost_scsi_dev_t parent.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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They abort instead, so get rid of failure conditions.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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Use g_new/g_free instead of plain malloc. This simplify a bit memory
handling since glib will abort if it cannot allocate.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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This simplify a little bit memory management in the following patches.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Since vhost-user-scsi uses glib.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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libvhost-user is meant to be free of glib dependency. Make sure it is
by droping qemu/osdep.h (which included glib.h)
This fixes a bad malloc()/g_free() pair.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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And actually link to it from vhost-user-bridge.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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Delete commented out extern keyword on link_error().
Signed-off-by: Jiang Biao <jiang.biao2@zte.com.cn>
Message-Id: <1506762042-32145-1-git-send-email-jiang.biao2@zte.com.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Will come in handy very soon.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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These only depend on the host and therefore belong in the common
osdep, not in a target-dependent object.
While at it, query the host during an init constructor, which guarantees
the page size will be well-defined throughout the execution of the program.
Suggested-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Groundwork for supporting multiple TCG contexts.
The hash table becomes read-only after it is filled in,
so we can save space by keeping just a global pointer to it.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Groundwork for supporting multiple TCG contexts.
Compile-tested for all targets on an x86_64 host.
Suggested-by: Richard Henderson <rth@twiddle.net>
Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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In preparation for adding tc.size to be able to keep track of
TB's using the binary search tree implementation from glib.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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This prevents bit rot by ensuring the debug code is compiled when
building a user-mode target.
Unfortunately the helpers are user-mode-only so we cannot fully
get rid of the ifdef checks. Add a comment to explain this.
Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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This gets rid of an ifdef check while ensuring that the debug code
is compiled, which prevents bit rot.
Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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