Signal handling support for NetBSD arm/aarch64
-----BEGIN PGP SIGNATURE-----
iQFRBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAl7WgZkdHHJpY2hhcmQu
aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV8ZZwf9Flw0VHTBBzsZHPjL
JVOdJsz8pnQLRDxk9JUo7D40xehpN1oE5mFCV5aFNMSz929r7OB5WfUHsyNpbms/
aCDz2ADRscBZ4xEZY9cxUYiNzq4fb3Hez64ibGbRm3uHU1C2pPNDRlFpL9aFQMCE
elhn54hwOAZUZAAKszepClHGglPffijY5QU5VX6Gq6nmqEmCBlA8lkxMtaV/NRnS
QfskDF4KvglGqGDCcKI2tfotu5Y9k3R4yh7Nzc2JnotbHk4WrNbhBl6r9KcdXddi
uQng4J0zhBa1Kq4ENdpKgAqN/ZNVEbsFzev5aY77UD76cnxqbQQ7hfXl2gAORp6m
Vy5lVw==
=nRee
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20200602' into staging
Vector rotate support
Signal handling support for NetBSD arm/aarch64
# gpg: Signature made Tue 02 Jun 2020 17:43:05 BST
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* remotes/rth/tags/pull-tcg-20200602:
accel/tcg: Provide a NetBSD specific aarch64 cpu_signal_handler
accel/tcg: Adjust cpu_signal_handler for NetBSD/arm
tcg: Improve move ops in liveness_pass_2
target/s390x: Use tcg_gen_gvec_rotl{i,s,v}
target/ppc: Use tcg_gen_gvec_rotlv
tcg/ppc: Implement INDEX_op_rot[lr]v_vec
tcg/aarch64: Implement INDEX_op_rotl{i,v}_vec
tcg/i386: Implement INDEX_op_rotl{i,s,v}_vec
tcg: Implement gvec support for rotate by scalar
tcg: Remove expansion to shift by vector from do_shifts
tcg: Implement gvec support for rotate by vector
tcg: Implement gvec support for rotate by immediate
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fix qemu build on NetBSD/evbarm-aarch64 by providing a NetBSD specific
cpu_signal_handler.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Nick Hudson <skrll@netbsd.org>
Message-Id: <20200517101529.5367-1-skrll@netbsd.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Fix building on NetBSD/arm by extracting the FSR value from the
correct siginfo_t field.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Nick Hudson <skrll@netbsd.org>
Message-Id: <20200516154147.24842-1-skrll@netbsd.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
If the output of the move is dead, then the last use is in
the store. If we propagate the input to the store, then we
can remove the move opcode entirely.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Merge VERLL and VERLLV into op_vesv and op_ves, alongside
all of the other vector shift operations.
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We already had support for rotlv, using a target-specific opcode;
convert to use the generic opcode. Handle rotrv via simple negation.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For immediate rotate , we can implement this in two instructions,
using SLI. For variable rotate, the oddness of aarch64 right-shift-
as-negative-left-shift means a backend-specific expansion works best.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For immediates, we must continue the special casing of 8-bit
elements. The other element sizes and shift types are trivially
implemented with shifts.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
No host backend support yet, but the interfaces for rotls
are in place. Only implement left-rotate for now, as the
only known use of vector rotate by scalar is s390x, so any
right-rotate would be unused and untestable.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We do not reflect this expansion in tcg_can_emit_vecop_list,
so it is unused and unusable. However, we actually perform
the same expansion in do_gvec_shifts, so it is also unneeded.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
No host backend support yet, but the interfaces for rotlv
and rotrv are in place.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v3: Drop the generic expansion from rot to shift; we can do better
for each backend, and then this code becomes unused.
No host backend support yet, but the interfaces for rotli
are in place. Canonicalize immediate rotate to the left,
based on a survey of architectures, but provide both left
and right shift interfaces to the translators.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
migration_rate_limit will erroneously ratelimit a shutdown socket,
which causes the migration thread to hang in ram_save_host_page
if the socket is shutdown.
Fix this by explicitly testing if the socket has errors or was
shutdown in migration_rate_limit.
Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Message-Id: <e79085bbe2d46dfa007dd41820194d5e2d4fcd80.1590007004.git.lukasstraub2@web.de>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
If the secondary has to failover during checkpointing, it still is
in the old state (i.e. different state than primary). Thus we can't
expose the primary state until after the checkpoint is sent.
This fixes sporadic connection reset of client connections during
failover.
Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Message-Id: <d4555dd5146a54518c4d9d4efd996b7c745c6687.1589193382.git.lukasstraub2@web.de>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
If vmstate_loading is true, secondary_vm_do_failover will set failover
status to FAILOVER_STATUS_RELAUNCH and return success without initiating
failover. However, if there is an error during the vmstate_loading
section, failover isn't relaunched. Instead we then wait for
failover on colo_incoming_sem.
Fix this by relaunching failover even if there was an error. Also,
to make this work properly, set vmstate_loading to false when
returning during the vmstate_loading section.
Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Message-Id: <f60b0a8e2fadaaec792e04819dfc46951842d6ba.1589193382.git.lukasstraub2@web.de>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
If we suceed in receiving ram state, but fail receiving the device
state, there will be a mismatch between the two.
Fix this by flushing the ram cache only after the vmstate has been
received.
Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Message-Id: <3289d007d494cb0e2f05b1cf4ae6a78d300fede3.1589193382.git.lukasstraub2@web.de>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
cpu_synchronize_all_pre_loadvm() marks all vcpus as dirty, so the
registers are loaded from CPUState before we continue running
the vm. However if we failover during checkpoint, CPUState is not
initialized and the registers are loaded with garbage. This causes
guest hangs and crashes.
Fix this by using cpu_synchronize_all_states(), which initializes
CPUState from the current cpu registers additionally to marking
the vcpus as dirty.
Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Message-Id: <9675031ce557b73ebd10e7bd20ebbf57f30b177c.1589193382.git.lukasstraub2@web.de>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
If multiple packets miscompare in a short timeframe, the semaphore
value will be increased multiple times. This causes multiple
checkpoints even if one would be sufficient.
Fix this by using a event instead of a semaphore for triggering
checkpoints. Now, checkpoint requests will be ignored until the
checkpoint event is sent to colo-compare (which releases the
miscompared packets).
Benchmark results (iperf3):
Client-to-server tcp:
without patch: ~66 Mbit/s
with patch: ~61 Mbit/s
Server-to-client tcp:
without patch: ~702 Kbit/s
with patch: ~16 Mbit/s
Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Message-Id: <fd601ba1beb524aada54ba66e87ebfc12cf4574b.1589193382.git.lukasstraub2@web.de>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
"migration/vmstate.h" only uses pointer to MemoryRegion, which
is already forward declared in "qemu/typedefs.h".
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200530165512.15225-1-f4bug@amsat.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Path lookup in the kernel has special rules for looking up magic symlinks
under /proc. If a filesystem operation is instructed to follow symlinks
(e.g. via AT_SYMLINK_FOLLOW or lack of AT_SYMLINK_NOFOLLOW), and the final
component is such a proc symlink, then the target of the magic symlink is
used for the operation, even if the target itself is a symlink. I.e. path
lookup is always terminated after following a final magic symlink.
I was erronously assuming that in the above case the target symlink would
also be followed, and so workarounds were added for a couple of operations
to handle the symlink case. Since the symlink can be handled simply by
following the proc symlink, these workardouds are not needed.
Also remove the "norace" option, which disabled the workarounds.
Commit bdfd667883 ("virtiofsd: Fix xattr operations") already dealt with
the same issue for xattr operations.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Message-Id: <20200514140736.20561-1-mszeredi@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Simplify qom_set by making it use qmp_qom_set and the JSON parser.
(qemu) qom-get /machine smm
"auto"
(qemu) qom-set /machine smm "auto"
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20200520151108.160598-3-dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
With 's'->'S' type change suggested by Paolo and Markus
This started off as Andreas Färber's implementation from
March 2015, but after feedback from Paolo and Markus it morphed into
using the json output which handles structs reasonably.
Use with qom-list to find the members of an object.
(qemu) qom-get /backend/console[0]/device/vga.rom[0] size
65536
(qemu) qom-get /machine smm
"auto"
(qemu) qom-get /machine rtc-time
{
"tm_year": 120,
"tm_sec": 51,
"tm_hour": 9,
"tm_min": 50,
"tm_mon": 4,
"tm_mday": 20
}
(qemu) qom-get /machine frob
Error: Property '.frob' not found
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20200520151108.160598-2-dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
When error happen in initializing 'rdma_return_path', we should cleanup rdma context
before g_free(rdma) to avoid some memleaks. This patch fix that.
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-Id: <20200508100755.7875-3-pannengyuan@huawei.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
'rdma' is NULL when taking the first error branch in rdma_start_incoming_migration.
And it will cause a null pointer access in label 'err'. Fix that.
Fixes: 59c59c67ee
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-Id: <20200508100755.7875-2-pannengyuan@huawei.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Note this is CID 1428762
this also removes tricore_cpu_get_phys_page_attrs_debug() as it was a
temporary fix from b190f477e2.
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20200529072148.284037-5-kbastian@mail.uni-paderborn.de>
this is needed for remote gdb connections.
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20200529072148.284037-4-kbastian@mail.uni-paderborn.de>
this allows us to remove the references to env from ctx. This also fixes
a segfault that was due to the unititalized ctx->env ptr.
Reported-by: Andreas Konopik <andreas.konopik@fau.de>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20200529072148.284037-3-kbastian@mail.uni-paderborn.de>
EXCP_DEBUG is the only user. If we encounter a jump in tricore-gdb it's
target was overwritten by generate_qemu_excp() and we would never leave.
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20200529072148.284037-2-kbastian@mail.uni-paderborn.de>
Loongson processor prefers 16KB page size in system emulator, so let's
define mc->minimum_page_bits to 14.
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Signed-off-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Message-Id: <1586337380-25217-2-git-send-email-chenhc@lemote.com>
Traditionally, MIPS use 4KB page size, but Loongson prefer 16KB page
size in system emulator. So, let's define TARGET_PAGE_BITS_VARY and
TARGET_PAGE_BITS_MIN to support variable page size.
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Signed-off-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Message-Id: <1586337380-25217-1-git-send-email-chenhc@lemote.com>
Currently, KVM/MIPS only deliver I/O interrupt via IP2, this patch add
IP3 delivery as well, because Loongson-3 based machine use both IRQ2
(CPU's IP2) and IRQ3 (CPU's IP3).
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Signed-off-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Message-Id: <1588501221-1205-4-git-send-email-chenhc@lemote.com>
Preparing for Loongson-3 virtualization, add KVM target support for
MIPS64 in configure script.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Signed-off-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Message-Id: <1588501221-1205-2-git-send-email-chenhc@lemote.com>
The description of "make check" is out-of-date, so fix it by adding
block and softfloat.
Reviewed-by: Claudio Fontana <cfontana@suse.de>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Signed-off-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Message-Id: <1588674291-6486-1-git-send-email-chenhc@lemote.com>
This patch moves image downloading functions to the separate class to allow
reusing them from record/replay tests.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <159073593167.20809.17582679291556188984.stgit@pasha-ThinkPad-X280>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
This patch splits code in BootLinuxConsole class into two different
classes to allow reusing it by record/replay tests.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <159073588490.20809.13942096070255577558.stgit@pasha-ThinkPad-X280>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Console interaction in avocado scripts was possible only with single
default VM.
This patch modifies the function parameters to allow passing a specific
VM as a parameter to interact with it.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <159073587933.20809.5122618715976660635.stgit@pasha-ThinkPad-X280>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
When the source finishes migration the destination will still be
receiving the data sent by the source, so it might not have quite
finished yet, so won't quite have reached 'completed'.
This lead to occasional asserts in the next few checks.
After the source has finished, check the destination as well.
(We can't just switch to checking the destination, because it doesn't
give a status until it has started receiving the migration).
Reported-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200528112404.121972-1-dgilbert@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200512103238.7078-7-philmd@redhat.com>
