Commit Graph

17 Commits

Author SHA1 Message Date
Peter Krempa
b2d6fc67ab qemu_migration_cookie: Export qemuMigrationCookieXMLFormat for tests
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-11-09 12:25:49 +01:00
Peter Krempa
49c845bb4e qemu_migration_cookie: Make header standalone
Include qemu_domain.h and qemu_domainjob.h as the types from those
headers are used by this header.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-11-09 12:25:49 +01:00
Peter Krempa
43f0944f66 qemu: migration: Rename qemuMigrationEatCookie to qemuMigrationCookieParse
Use a more descriptive name and move the verb to the end so that the
functions conform with the naming policy.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-10-01 10:01:05 +02:00
Peter Krempa
775296cbd6 qemuMigrationCookieNew: Export
Allow direct use rather than going through qemuMigrationEatCookie with
NULL/0 arguments.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-10-01 10:01:05 +02:00
Peter Krempa
6c8b68b312 qemu: migration: Rename qemuMigrationBakeCookie to qemuMigrationCookieFormat
Use a more descriptive name and move the verb to the end so that the
functions conform with the naming policy.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-10-01 10:01:05 +02:00
Daniel Henrique Barboza
78db83dc1a qemu_migration_cookie.h: register AUTOPTR_CLEANUP_FUNC for qemuMigrationCookiePtr
Next patch will use g_autoptr() in a qemuMigrationCookiePtr pointer to
modernize qemuMigrationSrcBeginPhase().

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-07-13 17:18:01 +02:00
Peter Krempa
3093822d1d qemuMigrationCookieNBD: Extract embedded struct
Extract the struct so that it's type has a name.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-01-31 14:28:28 +01:00
Jonathon Jongsma
5dad4b5d93 src/qemu: use #pragma once in headers
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2019-06-19 17:12:30 +02:00
Peter Krempa
285c5f28c4 util: Move enum convertors into virenum.(c|h)
virutil.(c|h) is a very gross collection of random code. Remove the enum
handlers from there so we can limit the scope where virtutil.h is used.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-04-10 09:12:04 +02:00
Daniel P. Berrangé
568a417224 Enforce a standard header file guard symbol name
Require that all headers are guarded by a symbol named

  LIBVIRT_$FILENAME

where $FILENAME is the uppercased filename, with all characters
outside a-z changed into '_'.

Note we do not use a leading __ because that is technically a
namespace reserved for the toolchain.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-12-14 10:47:13 +00:00
Michal Privoznik
1a07aca24a qemuMigrationEatCookie: Pass virDomainDef instead of virDomainObj
The function currently takes virDomainObjPtr because it's using
both: the domain definition and domain private data.
Unfortunately, this means that in prepare phase we can't parse
migration cookie before putting incoming domain def onto domain
objects list (addressed in the very next commit). Change the
arguments so that virDomainDef and private data are passed
instead of virDomainObjPtr.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2018-11-23 16:25:42 +01:00
Jiri Denemark
40ced93b01 qemu: Add support for sending capabilities in migration cookie
Some migration capabilities may be enabled automatically, but only if
both sides of migration support them. Thus we need to be able transfer
the list of supported migration capabilities in migration cookie.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-04-17 10:46:23 +02:00
Pavel Hrdina
e859da6f42 qemu: send allowReboot in migration cookie
We need to send allowReboot in the migration cookie to ensure the same
behavior of the virDomainSetLifecycleAction() API on the destination.

Consider this scenario:

    1. On the source the domain is started with:
        <on_poweroff>destroy</on_poweroff>
        <on_reboot>restart</on_reboot>
        <on_crash>destroy</on_crash>

    2. User calls an API to set "destroy" for <on_reboot>:
        <on_poweroff>destroy</on_poweroff>
        <on_reboot>destroy</on_reboot>
        <on_crash>destroy</on_crash>

    3. The guest is migrated to a different host

    4a. Without the allowReboot in the migration cookie the QEMU
        process on destination would be started with -no-reboot
        which would prevent using the virDomainSetLifecycleAction() API
        for the rest of the guest lifetime.

    4b. With the allowReboot in the migration cookie the QEMU process
        on destination is started without -no-reboot like it was started
        on the source host and the virDomainSetLifecycleAction() API
        continues to work.

The following patch adds a QEMU implementation of the
virDomainSetLifecycleAction() API and that implementation disallows
using the API if all actions are set to "destroy" because we add
"-no-reboot" on the QEMU command line.  Changing the lifecycle action
is in this case pointless because the QEMU process is always terminated.

Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-10-19 11:52:34 +02:00
Jiri Denemark
48bc3053b8 qemu: Send updated CPU in migration cookie
Since the domain XML send during migration uses the original guest CPU
definition but we still want the destination to enforce ABI if it is new
enough, we send the live updated CPU definition in a migration cookie.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2017-06-07 13:36:02 +02:00
Jiri Denemark
5498aa29a7 qemu: Free persistent def inside qemuMigrationCookieFree
Creating a copy of the definition we want to add in a migration cookie
makes the code cleaner and less prone to memory leaks or double free
errors.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-03-27 20:55:18 +02:00
Jiri Denemark
6052f75de5 qemu: Typedef migration cookie enums
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-03-27 20:55:18 +02:00
Jiri Denemark
e50fb329a9 qemu: Move migration cookies to a separate file
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-03-27 20:55:14 +02:00