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2017-05-29linux-user: add rt_tgsigqueueinfo() straceMiloš Stojanović
This commit improves strace support for syscall rt_tgsigqueueinfo(). Prior to this commit, typical strace output used to look like this: 7775 rt_tgsigqueueinfo(7775,7775,50,1996483164,0,0) = 0 After this commit, it looks like this: 7775 rt_tgsigqueueinfo(7775,7775,50,0x76ffea5c) = 0 Signed-off-by: Miloš Stojanović <Milos.Stojanovic@rt-rk.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-05-29linux-user: add support for rt_tgsigqueueinfo() system callMiloš Stojanović
Add a new system call: rt_tgsigqueueinfo(). This system call is similar to rt_sigqueueinfo(), but instead of sending the signal and data to the whole thread group with the ID equal to the argument tgid, it sends it to a single thread within that thread group. The ID of the thread is specified by the tid argument. The implementation is based on the rt_sigqueueinfo() in linux-user mode, where the tid is added as the second argument and the previous second and third argument become arguments three and four, respectively. Signed-off-by: Miloš Stojanović <Milos.Stojanovic@rt-rk.com> Conflicts: linux-user/syscall.c Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-05-29linux-user: fix argument type declaration of rt_sigqueinfo() syscallMiloš Stojanović
Change the type of the first argument of rt_sigqueinfo() from int to pid_t in the syscall declaration to match specifications of the system call. Proper spacing is added to satisfy checkpatch.pl. Signed-off-by: Miloš Stojanović <Milos.Stojanovic@rt-rk.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-05-29linux-user: fix mismatch of lock/unlock_user() invocations in ↵Miloš Stojanović
rt_sigqueinfo() syscall Change the unlock_user() argument from arg1 to arg3 to match with lock_user(), since arg3 contains the pointer to the siginfo_t structure. Signed-off-by: Miloš Stojanović <Milos.Stojanovic@rt-rk.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-05-29linux-user: fix ssetmask() system callMiloš Stojanović
Fix the ssetmask() system call by removing the invocation of sigorset(). The ssetmask() system call should replace the old signal mask with the new and return the old mask. It shouldn't combine the old and the new mask with sigorset(). Fetching the old mask for sigorset() is also no longer needed. The problem was detected after running LTP test group syscalls for the MIPS EL 32 R2 architecture where the test ssetmask01 failed with exit code 1. The test passes now that the ssetmask() system call is fixed. Signed-off-by: Miloš Stojanović <Milos.Stojanovic@rt-rk.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-05-29linux-user: add tkill(), tgkill() and rt_sigqueueinfo() straceMiloš Stojanović
Improve strace support for syscall tkill(), tgkill() and rt_sigqueueinfo() by implementing print functions that match arguments types of the system calls and add them to the corresponding starce.list entry. tkill: Prior to this commit, typical strace output used to look like this: 4886 tkill(4886,50,0,4832615904,0,-9151031864016699136) = 0 After this commit, it looks like this: 4886 tkill(4886,50) = 0 tgkill: Prior to this commit, typical strace output used to look like this: 4890 tgkill(4890,4890,50,8,4832630528,4832615904) = 0 After this commit, it looks like this: 4890 tgkill(4890,4890,50) = 0 rt_sigqueueinfo: Prior to this commit, typical strace output used to look like this: 8307 rt_sigqueueinfo(8307,50,1996483164,0,0,50) = 0 After this commit, it looks like this: 8307 rt_sigqueueinfo(8307,50,0x00000040007ff6b0) = 0 Signed-off-by: Miloš Stojanović <Milos.Stojanovic@rt-rk.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-05-29linux-user: add strace for getuid(), gettid(), getppid(), geteuid()Miloš Stojanović
Improve strace support for syscalls getuid(), gettid(), getppid() and geteuid(). Since these system calls don't have arguments, "%s()" is added in the corresponding strace.list entry so that no arguments are printed. getuid: Prior to this commit, typical strace output used to look like this: 4894 getuid(4894,0,0,274886293296,-3689348814741910323,4832615904) = 1000 After this commit, it looks like this: 4894 getuid() = 1000 gettid: Prior to this commit, typical strace output used to look like this: 8307 gettid(0,0,64,0,4832630528,4832615840) = 8307 After this commit, it looks like this: 8307 gettid() = 8307 getppid: Prior to this commit, typical strace output used to look like this: 20588 getppid(20588,64,0,4832630528,4832615888,0) = 20625 After this commit, it looks like this: 20588 getppid() = 20625 geteuid: Prior to this commit, typical strace output used to look like this: 20588 geteuid(64,0,0,4832615888,0,-9151031864016699136) = 1000 After this commit, it looks like this: 20588 geteuid() = 1000 Signed-off-by: Miloš Stojanović <Milos.Stojanovic@rt-rk.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-05-29linux-user: remove all traces of qemu from /proc/self/cmdlineAndreas Schwab
Instead of post-processing the real contents use the remembered target argv. That removes all traces of qemu, including command line options, and handles QEMU_ARGV0. Signed-off-by: Andreas Schwab <schwab@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-05-29linux-user: allocate heap memory for execve argumentsPrasad J Pandit
Arguments passed to execve(2) call from user program could be large, allocating stack memory for them via alloca(3) call would lead to bad behaviour. Use 'g_new0' to allocate memory for such arguments. Reported-by: Jann Horn <jannh@google.com> Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-05-29linux-user: fix inotifyLaurent Vivier
When a fd is opened using inotify_init(), a read provides one or more inotify_event structures: struct inotify_event { int wd; uint32_t mask; uint32_t cookie; uint32_t len; char name[]; }; The integer fields must be byte-swapped to the target endianness. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-05-29linux-user: fix fadvise64_64() on ppcLaurent Vivier
On ppc, advice is arg2, not arg6: long ppc_fadvise64_64(int fd, int advice, u32 offset_high, u32 offset_low, u32 len_high, u32 len_low) Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-05-29linux-user: fix eventfdLaurent Vivier
When a fd is opened using eventfd(), a read provides a 64bit counter in the host byte order, and a write increase the internal counter by the provided 64bit value. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-05-29linux-user: call fd_trans_target_to_host_data() for write()Laurent Vivier
As for sendmsg() or sendto(), we must call the target to host data translator if it is defined. This is needed for eventfd(): the write() syscall allows to add a value to the internal counter, and so, it must be byte-swapped to the host order. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-05-23Merge remote-tracking branch 'jasowang/tags/net-pull-request' into stagingStefan Hajnoczi
# gpg: Signature made Tue 23 May 2017 03:27:37 AM BST # gpg: using RSA key 0xEF04965B398D6211 # gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" # Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211 * jasowang/tags/net-pull-request: e1000e: Fix ICR "Other" causes clear logic net/filter-rewriter: Remove unused option in filter-rewriter net/filter-mirror.c: Rename filter_mirror_send() and fix codestyle net/filter-mirror.c: Remove duplicate check code. hmp / net: Mark host_net_add/remove as deprecated COLO-compare: Improve tcp compare trace event readability virtio-net: fix wild pointer when remove virtio-net queues net/dump: Issue a warning for the deprecated "-net dump" net/tap: Replace tap-haiku.c and tap-aix.c by a generic tap-stub.c Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-23e1000e: Fix ICR "Other" causes clear logicSameeh Jubran
This commit fixes a bug which causes the guest to hang. The bug was observed upon a "receive overrun" (bit #6 of the ICR register) interrupt which could be triggered post migration in a heavy traffic environment. Even though the "receive overrun" bit (#6) is masked out by the IMS register (refer to the log below) the driver still receives an interrupt as the "receive overrun" bit (#6) causes the "Other" - bit #24 of the ICR register - bit to be set as documented below. The driver handles the interrupt and clears the "Other" bit (#24) but doesn't clear the "receive overrun" bit (#6) which leads to an infinite loop. Apparently the Windows driver expects that the "receive overrun" bit and other ones - documented below - to be cleared when the "Other" bit (#24) is cleared. So to sum that up: 1. Bit #6 of the ICR register is set by heavy traffic 2. As a results of setting bit #6, bit #24 is set 3. The driver receives an interrupt for bit 24 (it doesn't receieve an interrupt for bit #6 as it is masked out by IMS) 4. The driver handles and clears the interrupt of bit #24 5. Bit #6 is still set. 6. 2 happens all over again The Interrupt Cause Read - ICR register: The ICR has the "Other" bit - bit #24 - that is set when one or more of the following ICR register's bits are set: LSC - bit #2, RXO - bit #6, MDAC - bit #9, SRPD - bit #16, ACK - bit #17, MNG - bit #18 This bug can occur with any of these bits depending on the driver's behaviour and the way it configures the device. However, trying to reproduce it with any bit other than RX0 is challenging and came to failure as the drivers don't implement most of these bits, trying to reproduce it with LSC (Link Status Change - bit #2) bit didn't succeed too as it seems that Windows handles this bit differently. Log sample of the storm: 27563@1494850819.411877:e1000e_irq_pending_interrupts ICR PENDING: 0x1000000 (ICR: 0x815000c2, IMS: 0x1a00004) 27563@1494850819.411900:e1000e_irq_pending_interrupts ICR PENDING: 0x0 (ICR: 0x815000c2, IMS: 0xa00004) 27563@1494850819.411915:e1000e_irq_pending_interrupts ICR PENDING: 0x0 (ICR: 0x815000c2, IMS: 0xa00004) 27563@1494850819.412380:e1000e_irq_pending_interrupts ICR PENDING: 0x0 (ICR: 0x815000c2, IMS: 0xa00004) 27563@1494850819.412395:e1000e_irq_pending_interrupts ICR PENDING: 0x0 (ICR: 0x815000c2, IMS: 0xa00004) 27563@1494850819.412436:e1000e_irq_pending_interrupts ICR PENDING: 0x0 (ICR: 0x815000c2, IMS: 0xa00004) 27563@1494850819.412441:e1000e_irq_pending_interrupts ICR PENDING: 0x0 (ICR: 0x815000c2, IMS: 0xa00004) 27563@1494850819.412998:e1000e_irq_pending_interrupts ICR PENDING: 0x1000000 (ICR: 0x815000c2, IMS: 0x1a00004) * This bug behaviour wasn't observed with the Linux driver. This commit solves: https://bugzilla.redhat.com/show_bug.cgi?id=1447935 https://bugzilla.redhat.com/show_bug.cgi?id=1449490 Cc: qemu-stable@nongnu.org Signed-off-by: Sameeh Jubran <sjubran@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23net/filter-rewriter: Remove unused option in filter-rewriterZhang Chen
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23net/filter-mirror.c: Rename filter_mirror_send() and fix codestyleZhang Chen
Because filter_mirror_receive_iov() and filter_redirector_receive_iov() both use the filter_mirror_send() to send packet, so I change filter_mirror_send() to filter_send() that looks more common. And fix some codestyle. Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23net/filter-mirror.c: Remove duplicate check code.Zhang Chen
The s->outdev have checked in filter_mirror_set_outdev(). Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23hmp / net: Mark host_net_add/remove as deprecatedThomas Huth
The netdev_add and netdev_del commands should be used nowadays instead. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23COLO-compare: Improve tcp compare trace event readabilityZhang Chen
Because of previous patch's trace arguments over the limit of UST backend, so I rewrite the patch. Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23virtio-net: fix wild pointer when remove virtio-net queuesYunjian Wang
The tx_bh or tx_timer will free in virtio_net_del_queue() function, when removing virtio-net queues if the guest doesn't support multiqueue. But it might be still referenced by virtio_net_set_status(), which needs to be set NULL. And also the tx_waiting needs to be set zero to prevent virtio_net_set_status() accessing tx_bh or tx_timer. Cc: qemu-stable@nongnu.org Signed-off-by: Yunjian Wang <wangyunjian@huawei.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23net/dump: Issue a warning for the deprecated "-net dump"Thomas Huth
Network dumping should be done with "-object filter-dump" nowadays. Using "-net dump" via the VLAN mechanism is considered as deprecated and might be removed in a future release. So warn the users now to inform them to user the filter-dump method instead. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-23net/tap: Replace tap-haiku.c and tap-aix.c by a generic tap-stub.cThomas Huth
The files tap-haiku.c and tap-aix.c are identical (except one line of error message). We should avoid such code duplication, so replace these by a generic tap-stub.c file instead. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-05-22Merge remote-tracking branch 'mcayland/tags/qemu-openbios-signed' into stagingStefan Hajnoczi
Update OpenBIOS images # gpg: Signature made Fri 19 May 2017 05:05:54 PM BST # gpg: using RSA key 0x5BC2C56FAE0F321F # gpg: Good signature from "Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>" # Primary key fingerprint: CC62 1AB9 8E82 200D 915C C9C4 5BC2 C56F AE0F 321F * mcayland/tags/qemu-openbios-signed: Update OpenBIOS images to 3ebaaa2 built from submodule. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-19Merge remote-tracking branch 'kraxel/tags/pull-audio-20170519-1' into stagingStefan Hajnoczi
audio: move & rename soundhw init code. # gpg: Signature made Fri 19 May 2017 12:22:51 PM BST # gpg: using RSA key 0x4CB6D8EED3E87138 # 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>" # Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138 * kraxel/tags/pull-audio-20170519-1: audio: Rename hw/audio/audio.h to hw/audio/soundhw.h audio: Rename audio_init() to soundhw_init() audio: Move arch_init audio code to hw/audio/soundhw.c Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-19Update OpenBIOS images to 3ebaaa2 built from submodule.Mark Cave-Ayland
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2017-05-19Merge remote-tracking branch 'kraxel/tags/pull-ui-20170519-1' into stagingStefan Hajnoczi
ui: egl-headless requires dmabuf support # gpg: Signature made Fri 19 May 2017 09:46:40 AM BST # gpg: using RSA key 0x4CB6D8EED3E87138 # 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>" # Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138 * kraxel/tags/pull-ui-20170519-1: ui: egl-headless requires dmabuf support Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-19Merge remote-tracking branch 'quintela/tags/migration/20170518' into stagingStefan Hajnoczi
migration/next for 20170518 # gpg: Signature made Thu 18 May 2017 06:23:26 PM BST # gpg: using RSA key 0xF487EF185872D723 # gpg: Good signature from "Juan Quintela <quintela@redhat.com>" # gpg: aka "Juan Quintela <quintela@trasno.org>" # Primary key fingerprint: 1899 FF8E DEBF 58CC EE03 4B82 F487 EF18 5872 D723 * quintela/tags/migration/20170518: migration: Make savevm.c target independent exec: Create include for target_page_size() migration: migration.h was not needed migration: Remove vmstate.h from migration.h migration: Remove qemu-file.h from vmstate.h migration: Split vmstate-types.c from vmstate.c migration: Move qjson.h to migration/ migration: Remove migration.h from colo.h migration: Export qemu-file-channel.c functions in its own file migration: Split migration/channel.c for channel operations migration: Create migration/xbzrle.h block migration: Allow compile time disable migration: Remove old MigrationParams migration: Remove use of old MigrationParams migration: Create block capability hmp: Use visitor api for hmp_migrate_set_parameter() postcopy: Require RAMBlocks that are whole pages migration: Fix non-multiple of page size migration Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-19audio: Rename hw/audio/audio.h to hw/audio/soundhw.hEduardo Habkost
All the functions in hw/audio/audio.h are called "soundhw_*()" and live in hw/audio/audiohw.c. Rename the header file for consistency. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Hervé Poussineau <hpoussin@reactos.org> Message-id: 20170508205735.23444-4-ehabkost@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-05-19audio: Rename audio_init() to soundhw_init()Eduardo Habkost
To make it consistent with the remaining soundhw.c functions and avoid confusion with the audio_init() function in audio/audio.c, rename audio_init() to soundhw_init(). Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Message-id: 20170508205735.23444-3-ehabkost@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-05-19audio: Move arch_init audio code to hw/audio/soundhw.cEduardo Habkost
There's no reason to keep the soundhw table in arch_init.c. Move that code to a new hw/audio/soundhw.c file. While moving the code, trivial coding style issues were fixed. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20170508205735.23444-2-ehabkost@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-05-19ui: egl-headless requires dmabuf supportGerd Hoffmann
Reported-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20170517122744.3541-1-kraxel@redhat.com
2017-05-18migration: Make savevm.c target independentJuan Quintela
It only needed TARGET_PAGE_SIZE/BITS/BITS_MIN values, so just export them from exec.h Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-05-18exec: Create include for target_page_size()Juan Quintela
That is the only function that we need from exec.c, and having to include the whole sysemu.h for this. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> --- /me leans to be less sloppy with copyright notices thanks Dave
2017-05-18migration: migration.h was not neededJuan Quintela
This files don't use any function from migration.h, so drop it. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com>
2017-05-18migration: Remove vmstate.h from migration.hJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> --- Minor rearrangements due to rebase
2017-05-18migration: Remove qemu-file.h from vmstate.hJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> -- minor rearangements due to the rebase
2017-05-18migration: Split vmstate-types.c from vmstate.cJuan Quintela
Now one just has the interperter, and the other has the basic types. Once there, add copyright boilerplate. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> -- Use GPL v2 or later. Detected by David.
2017-05-18migration: Move qjson.h to migration/Juan Quintela
It is only used for migration code. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-05-18migration: Remove migration.h from colo.hJuan Quintela
migration.h is not included in any includes now. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com>
2017-05-18migration: Export qemu-file-channel.c functions in its own fileJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-05-18migration: Split migration/channel.c for channel operationsJuan Quintela
Create an include for its exported functions. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> --- Add proper header
2017-05-18migration: Create migration/xbzrle.hJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com>
2017-05-18block migration: Allow compile time disableDr. David Alan Gilbert
Many users now prefer to use drive_mirror over NBD as an alternative to the older migrate -b option; drive_mirror is more complex to setup but gives you more options (e.g. only migrating some of the disks if some of them are shared). Allow the large chunk of block migration code to be compiled out for those who don't use it. Based on a downstream-patch we've had for a while by Jeff Cody. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> -- - When compiled out, allow seting block only with false value (eric)
2017-05-18migration: Remove old MigrationParamsJuan Quintela
Not used anymore after moving block migration to use capabilities. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Reviewed-by: Peter Xu <peterx@redhat.com>
2017-05-18migration: Remove use of old MigrationParamsJuan Quintela
We have change in the previous patch to use migration capabilities for it. Notice that we continue using the old command line flags from migrate command from the time being. Remove the set_params method as now it is empty. For savevm, one can't do a: savevm -b/-i foo but now one can do: migrate_set_capability block on savevm foo And we can't use block migration. We could disable block capability unconditionally, but it would not be much better. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> --- - Maintain shared/enabled dependency (Xu suggestion) - Now we maintain the dependency on the setter functions - improve error messages
2017-05-18migration: Create block capabilityJuan Quintela
Create one capability for block migration and one parameter for incremental block migration. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> --- - address all Markus comments - use Markus and Eric text descriptions - change logic another time - improve text messages
2017-05-18hmp: Use visitor api for hmp_migrate_set_parameter()Juan Quintela
We only use it for int64 at this point, I am not able to find a way to parse an int with MiB units. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
2017-05-18postcopy: Require RAMBlocks that are whole pagesDr. David Alan Gilbert
It turns out that it's legal to create a VM with RAMBlocks that aren't a multiple of the pagesize in use; e.g. a 1025M main memory using 2M host pages. That breaks postcopy's atomic placement of pages, so disallow it. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2017-05-18migration: Fix non-multiple of page size migrationDr. David Alan Gilbert
Unfortunately it's legal to create a VM with a RAM size that's not a multiple of the underlying host page or huge page size. Recently I'd changed things to always send host sized pages, and that breaks if we have say a 1025MB guest on 2MB hugepages. Unfortunately we can't just make that illegal since it would break migration from/to existing oddly configured VMs. Symptom: qemu-system-x86_64: Illegal RAM offset 40100000 as it transmits the fraction of the hugepage after the end of the RAMBlock (may also cause a crash on the source - possibly due to clearing bits after the bitmap) Reported-by: Yumei Huang <yuhuang@redhat.com> Red Hat bug: https://bugzilla.redhat.com/show_bug.cgi?id=1449037 Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
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