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2017-02-14linux-user: manage two new IFLA host message typesLaurent Vivier
Add QEMU_IFLA_GSO_MAX_SEGS and QEMU_IFLA_GSO_MAX_SIZE in host_to_target_data_link_rtattr(). These two messages are sent by the host kernel when we use "sudo". Found with qemu-m68k and Debian etch-m68k (sudo 1.6.8p12-4) and host kernel 4.7.6-200.fc24.x86_64 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <1477530049-15676-1-git-send-email-laurent@vivier.eu>
2017-02-14linux-user: Fix mq_openLena Djokic
If fourth argument is NULL it should be passed without using lock_user function which would, in that case, return EFAULT, and system call supports passing NULL as fourth argument. Signed-off-by: Lena Djokic <Lena.Djokic@rt-rk.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-02-14linux-user: Fix readaheadLena Djokic
Calculation of 64-bit offset was not correct for all cases. Signed-off-by: Lena Djokic <Lena.Djokic@rt-rk.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-02-14linux-user: Fix inotify_init1 supportLena Djokic
This commit adds necessary conversion of argument passed to inotify_init1. inotify_init1 flags can be IN_NONBLOCK and IN_CLOEXEC which rely on O_NONBLOCK and O_CLOEXEC and those can have different values on different platforms. Signed-off-by: Lena Djokic <Lena.Djokic@rt-rk.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-02-14linux-user: Fix s390x safe-syscall for z900Richard Henderson
The LT instruction was added in the extended immediate facility introduced with the z9-109 processor. Cc: Riku Voipio <riku.voipio@iki.fi> Reported-by: Michael Tokarev <mjt@tls.msk.ru> Fixes: c9bc3437a905b660561a26cd4ecc64579843267b Suggested-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-02-14linux-user: drop __cygwin__ ifdefRiku Voipio
linux-user doesn't work on cygwin anyways. Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-02-14linux-user: remove ifdef __USER_MISCRiku Voipio
This preprocessor macro isn't set anywhere. Remove the check so -strace can show these options. Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-02-14Merge remote-tracking branch 'remotes/rth/tags/pull-or-20170214' into stagingPeter Maydell
Queued openrisc patches # gpg: Signature made Mon 13 Feb 2017 21:21:03 GMT # gpg: using RSA key 0xAD1270CC4DD0279B # gpg: Good signature from "Richard Henderson <rth7680@gmail.com>" # gpg: aka "Richard Henderson <rth@redhat.com>" # gpg: aka "Richard Henderson <rth@twiddle.net>" # Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC 16A4 AD12 70CC 4DD0 279B * remotes/rth/tags/pull-or-20170214: (24 commits) target/openrisc: Optimize for r0 being zero target/openrisc: Tidy handling of delayed branches target/openrisc: Tidy ppc/npc implementation target/openrisc: Optimize l.jal to next target/openrisc: Fix madd target/openrisc: Implement muld, muldu, macu, msbu target/openrisc: Represent MACHI:MACLO as a single unit target/openrisc: Implement msync target/openrisc: Enable trap, csync, msync, psync for user mode target/openrisc: Set flags on helpers target/openrisc: Use movcond where appropriate target/openrisc: Keep SR_CY and SR_OV in a separate variables target/openrisc: Keep SR_F in a separate variable target/openrisc: Invert the decoding in dec_calc target/openrisc: Put SR[OVE] in TB flags target/openrisc: Streamline arithmetic and OVE target/openrisc: Rationalize immediate extraction target/openrisc: Tidy insn dumping target/openrisc: Implement lwa, swa target/openrisc: Fix exception handling status registers ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-14target/openrisc: Optimize for r0 being zeroRichard Henderson
The HW does not special-case r0, but the ABI specifies that r0 should contain 0. If we expose this fact to the optimizer, we can simplify a lot of the generated code. We must of course verify that r0==0, but that is trivial to do with a TB flag. Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Tidy handling of delayed branchesRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Tidy ppc/npc implementationRichard Henderson
The NPC SPR is really only supposed to be used for FPGA debugging. It contains the same contents as PC, unless one plays games. Follow the or1ksim implementation in flushing delayed branch state when it is changed. The PPC SPR need not be updated every instruction, merely when we exit the TB or attempt to read its contents. Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Optimize l.jal to nextRichard Henderson
This allows the tcg optimizer to see, and fold, all of the constants involved in a GOT base register load sequence. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Fix maddRichard Henderson
Note that the specification for lf.madd.s is confused. It's the only mention of supposed FPMADDHI/FPMADDLO special registers. On the other hand, or1ksim implements a somewhat normal non-fused multiply and add. Mirror that. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Implement muld, muldu, macu, msbuRichard Henderson
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Represent MACHI:MACLO as a single unitRichard Henderson
Significantly simplifies the implementation of the use of MAC. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Implement msyncRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Enable trap, csync, msync, psync for user modeRichard Henderson
Not documented as disabled for user mode. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Set flags on helpersRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Use movcond where appropriateRichard Henderson
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Keep SR_CY and SR_OV in a separate variablesRichard Henderson
This significantly streamlines carry and overflow production. Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Keep SR_F in a separate variableRichard Henderson
This avoids having to keep merging and extracting the flag from SR. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Invert the decoding in dec_calcRichard Henderson
Decoding the opcodes in the right order reduces by 100+ lines. Also, it happens to put the opcodes in the same order as Chapter 17. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Put SR[OVE] in TB flagsRichard Henderson
Removes a call at execution time for overflow exceptions. Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Streamline arithmetic and OVERichard Henderson
Fix incorrect overflow calculation. Move overflow exception check to a helper function, to eliminate inline branches. Remove some incorrect special casing of R0. Implement multiply inline. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Rationalize immediate extractionRichard Henderson
The architecture manual is consistent in using "I" for signed fields and "K" for unsigned fields. Mirror that. Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Tidy insn dumpingRichard Henderson
Avoids warnings from unused variables etc. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Implement lwa, swaRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Fix exception handling status registersStafford Horne
I am working on testing instruction emulation patches for the linux kernel. During testing I found these 2 issues: - sets DSX (delay slot exception) but never clears it - EEAR for illegal insns should point to the bad exception (as per openrisc spec) but its not This patch fixes these two issues by clearing the DSX flag when not in a delay slot and by setting EEAR to exception PC when handling illegal instruction exceptions. After this patch the openrisc kernel with latest patches boots great on qemu and instruction emulation works. Cc: qemu-trivial@nongnu.org Cc: openrisc@lists.librecores.org Signed-off-by: Stafford Horne <shorne@gmail.com> Message-Id: <20170113220028.29687-1-shorne@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14linux-user: Honor CLONE_SETTLS for openriscRichard Henderson
Threads work much better when you set the TLS register. This was fixed in the upstream kernel for Linux 4.9. Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14linux-user: Fix openrisc cpu_loopRichard Henderson
We need to handle EXCP_DEBUG and EXCP_INTERRUPT. We need to send signals to the guest using queue_signal. Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14linux-user: Add MMAP_SHIFT for openriscRichard Henderson
The page size on openrisc is 8k. Sync the shift required for the mmap2 syscall. Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-14target/openrisc: Rename the cpu from or32 to or1kRichard Henderson
This is in keeping with the toolchain and or1ksim. Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-02-13Merge remote-tracking branch ↵Peter Maydell
'remotes/dgilbert/tags/pull-migration-20170213a' into staging Migration Amit: migration: remove myself as maintainer MAINTAINERS: update my email address Ashijeet: migrate: Introduce zero RAM checks to skip RAM migration Pavel: Postcopy release RAM Halil: consolidate VMStateField.start Hailiang: COLO: fix setting checkpoint-delay not working properly COLO: Shutdown related socket fd while do failover COLO: Don't process failover request while loading VM's state Me: migration: Add VMSTATE_UNUSED_VARRAY_UINT32 migration: Add VMSTATE_WITH_TMP tests/migration: Add test for VMSTATE_WITH_TMP virtio-net VMState conversion and new VMSTATE macros # gpg: Signature made Mon 13 Feb 2017 17:36:39 GMT # gpg: using RSA key 0x0516331EBC5BFDE7 # gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@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: 45F5 C71B 4A0C B7FB 977A 9FA9 0516 331E BC5B FDE7 * remotes/dgilbert/tags/pull-migration-20170213a: virtio/migration: Migrate virtio-net to VMState tests/migration: Add test for VMSTATE_WITH_TMP migration: Add VMSTATE_WITH_TMP migration: Add VMSTATE_UNUSED_VARRAY_UINT32 COLO: Don't process failover request while loading VM's state COLO: Shutdown related socket fd while do failover COLO: fix setting checkpoint-delay not working properly migration: consolidate VMStateField.start migrate: Introduce zero RAM checks to skip RAM migration migration: discard non-dirty ram pages after the start of postcopy add 'release-ram' migrate capability migration: add MigrationState arg for ram_save_/compressed_/page() MAINTAINERS: update my email address migration: remove myself as maintainer Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-13virtio/migration: Migrate virtio-net to VMStateDr. David Alan Gilbert
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <20170203160651.19917-5-dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Merge fix against Halil's removal of the '_start' field in VMSTATE_VBUFFER_MULTIPLY
2017-02-13tests/migration: Add test for VMSTATE_WITH_TMPDr. David Alan Gilbert
Add a test for VMSTATE_WITH_TMP to tests/test-vmstate.c Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20170203160651.19917-4-dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13migration: Add VMSTATE_WITH_TMPDr. David Alan Gilbert
VMSTATE_WITH_TMP is for handling structures where some calculation or rearrangement of the data needs to be performed before the data hits the wire. For example, where the value on the wire is an offset from a non-migrated base, but the data in the structure is the actual pointer. To use it, a temporary type is created and a vmsd used on that type. The first element of the type must be 'parent' a pointer back to the type of the main structure. VMSTATE_WITH_TMP takes care of allocating and freeing the temporary before running the child vmsd. The post_load/pre_save on the child vmsd can copy things from the parent to the temporary using the parent pointer and do any other calculations needed; it can then use normal VMSD entries to do the actual data storage without having to fiddle around with qemu_get_*/qemu_put_* Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20170203160651.19917-3-dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13migration: Add VMSTATE_UNUSED_VARRAY_UINT32Dr. David Alan Gilbert
VMSTATE_UNUSED_VARRAY_UINT32 is used to skip a chunk of the stream that's an n-element array; note the array size and the dynamic value read never get multiplied so there's no overflow risk. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20170203160651.19917-2-dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13COLO: Don't process failover request while loading VM's statezhanghailiang
We should not do failover work while the main thread is loading VM's state. Otherwise the consistent of VM's memory and device state will be broken. We will restart the loading process after jump over the stage, The new failover status 'RELAUNCH' will help to record if we need to restart the process. Cc: Eric Blake <eblake@redhat.com> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <1484657864-21708-4-git-send-email-zhang.zhanghailiang@huawei.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Added a missing '(Since 2.9)'
2017-02-13COLO: Shutdown related socket fd while do failoverzhanghailiang
If the net connection between primary host and secondary host breaks while COLO/COLO incoming threads are doing read() or write(). It will block until connection is timeout, and the failover process will be blocked because of it. So it is necessary to shutdown all the socket fds used by COLO to avoid this situation. Besides, we should close the corresponding file descriptors after failvoer BH shutdown them, Or there will be an error. Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <1484657864-21708-3-git-send-email-zhang.zhanghailiang@huawei.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13COLO: fix setting checkpoint-delay not working properlyzhanghailiang
If we set checkpoint-delay through command 'migrate-set-parameters', It will not take effect until we finish last sleep chekpoint-delay, That's will be offensive espeically when we want to change its value from an extreme big one to a proper value. Fix it by using timer to realize checkpoint-delay. Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Message-Id: <1484657864-21708-2-git-send-email-zhang.zhanghailiang@huawei.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13migration: consolidate VMStateField.startHalil Pasic
The member VMStateField.start is used for two things, partial data migration for VBUFFER data (basically provide migration for a sub-buffer) and for locating next in QTAILQ. The implementation of the VBUFFER feature is broken when VMSTATE_ALLOC is used. This however goes unnoticed because actually partial migration for VBUFFER is not used at all. Let's consolidate the usage of VMStateField.start by removing support for partial migration for VBUFFER. Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com> Message-Id: <20170203175217.45562-1-pasic@linux.vnet.ibm.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13migrate: Introduce zero RAM checks to skip RAM migrationAshijeet Acharya
Migration of a "none" machine with no RAM crashes abruptly as bitmap_new() fails and thus aborts. Instead place zero RAM checks at appropriate places to skip migration of RAM in this case and complete migration successfully for devices only. Signed-off-by: Ashijeet Acharya <ashijeetacharya@gmail.com> Message-Id: <1486564125-31366-1-git-send-email-ashijeetacharya@gmail.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13migration: discard non-dirty ram pages after the start of postcopyPavel Butsykin
After the start of postcopy migration there are some non-dirty pages which have already been migrated. These pages are no longer needed on the source vm so that we can free them and it doen't hurt to complete the migration. Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com> Message-Id: <20170203152321.19739-4-pbutsykin@virtuozzo.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13add 'release-ram' migrate capabilityPavel Butsykin
This feature frees the migrated memory on the source during postcopy-ram migration. In the second step of postcopy-ram migration when the source vm is put on pause we can free unnecessary memory. It will allow, in particular, to start relaxing the memory stress on the source host in a load-balancing scenario. Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com> Message-Id: <20170203152321.19739-3-pbutsykin@virtuozzo.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Manually merged in Pavel's 'migration: madvise error_report fixup!'
2017-02-13migration: add MigrationState arg for ram_save_/compressed_/page()Pavel Butsykin
Cosmetic patch. The use of ms variable instead of migrate_get_current() looks nicer, especially when there reuse. Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com> Message-Id: <20170203152321.19739-2-pbutsykin@virtuozzo.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13MAINTAINERS: update my email addressAmit Shah
I'm leaving my job at Red Hat, this email address will stop working next week. Update it to one that I will have access to later. Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-Id: <1486120433-11628-1-git-send-email-amit.shah@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13migration: remove myself as maintainerAmit Shah
I'm switching jobs, and I'm not sure I can continue maintaining migration. Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-Id: <1486120416-11566-1-git-send-email-amit.shah@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' ↵Peter Maydell
into staging # gpg: Signature made Mon 13 Feb 2017 16:29:26 GMT # gpg: using RSA key 0x9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha/tags/tracing-pull-request: Makefile: Make "install" depend on "trace-events-all" docs: update manpage for stderr->log rename Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-13Makefile: Make "install" depend on "trace-events-all"Fam Zheng
We install this file to data dir but since 0ab8ed18 it's no longer required by any objects during "make". List it explicitly as a depended target of install and fix the broken "make install" command. Signed-off-by: Fam Zheng <famz@redhat.com> Message-id: 20170204143245.15974-1-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-13docs: update manpage for stderr->log renamePhilipp Gesang
With commit ed7f5f1d8db06fc31352a5ef4f54985e630c575a the name of this backend changed from “stderr” to “log”. Signed-off-by: Philipp Gesang <philipp.gesang@intra2net.com> Message-id: 20170202114101.2655-1-philipp.gesang@intra2net.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>