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[Qemu-devel] [PULL 07/15] migration: Add a new option to enable only-mig
From: |
Dr. David Alan Gilbert (git) |
Subject: |
[Qemu-devel] [PULL 07/15] migration: Add a new option to enable only-migratable |
Date: |
Tue, 24 Jan 2017 18:47:34 +0000 |
From: Ashijeet Acharya <address@hidden>
Add a new option "--only-migratable" in qemu which will allow to add
only those devices which will not fail qemu after migration. Devices
set with the flag 'unmigratable' cannot be added when this option will
be used.
Signed-off-by: Ashijeet Acharya <address@hidden>
Message-Id: <address@hidden>
Reviewed-by: Dr. David Alan Gilbert <address@hidden>
Reviewed-by: Juan Quintela <address@hidden>
Signed-off-by: Dr. David Alan Gilbert <address@hidden>
---
include/migration/migration.h | 3 +++
qemu-options.hx | 9 +++++++++
vl.c | 4 ++++
3 files changed, 16 insertions(+)
diff --git a/include/migration/migration.h b/include/migration/migration.h
index c309d23..40b3697 100644
--- a/include/migration/migration.h
+++ b/include/migration/migration.h
@@ -38,6 +38,9 @@
#define QEMU_VM_COMMAND 0x08
#define QEMU_VM_SECTION_FOOTER 0x7e
+/* for vl.c */
+extern int only_migratable;
+
struct MigrationParams {
bool blk;
bool shared;
diff --git a/qemu-options.hx b/qemu-options.hx
index 780528d..48c7f22 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -3585,6 +3585,15 @@ be used to change settings (such as migration
parameters) prior to issuing
the migrate_incoming to allow the migration to begin.
ETEXI
+DEF("only-migratable", 0, QEMU_OPTION_only_migratable, \
+ "-only-migratable allow only migratable devices\n", QEMU_ARCH_ALL)
+STEXI
address@hidden -only-migratable
address@hidden -only-migratable
+Only allow migratable devices. Devices will not be allowed to enter an
+unmigratable state.
+ETEXI
+
DEF("nodefaults", 0, QEMU_OPTION_nodefaults, \
"-nodefaults don't create default devices\n", QEMU_ARCH_ALL)
STEXI
diff --git a/vl.c b/vl.c
index abb0900..68e8c00 100644
--- a/vl.c
+++ b/vl.c
@@ -182,6 +182,7 @@ bool boot_strict;
uint8_t *boot_splash_filedata;
size_t boot_splash_filedata_size;
uint8_t qemu_extra_params_fw[2];
+int only_migratable; /* turn it off unless user states otherwise */
int icount_align_option;
@@ -3884,6 +3885,9 @@ int main(int argc, char **argv, char **envp)
}
incoming = optarg;
break;
+ case QEMU_OPTION_only_migratable:
+ only_migratable = 1;
+ break;
case QEMU_OPTION_nodefaults:
has_defaults = 0;
break;
--
2.9.3
- [Qemu-devel] [PULL 00/15] migration queue, Dr. David Alan Gilbert (git), 2017/01/24
- [Qemu-devel] [PULL 01/15] MAINTAINERS: Add myself as a migration submaintainer, Dr. David Alan Gilbert (git), 2017/01/24
- [Qemu-devel] [PULL 04/15] tests/migration: Add test for QTAILQ migration, Dr. David Alan Gilbert (git), 2017/01/24
- [Qemu-devel] [PULL 06/15] block/vvfat: Remove the undesirable comment, Dr. David Alan Gilbert (git), 2017/01/24
- [Qemu-devel] [PULL 05/15] migration: add error_report, Dr. David Alan Gilbert (git), 2017/01/24
- [Qemu-devel] [PULL 07/15] migration: Add a new option to enable only-migratable,
Dr. David Alan Gilbert (git) <=
- [Qemu-devel] [PULL 10/15] migration: Fail migration blocker for --only-migratable, Dr. David Alan Gilbert (git), 2017/01/24
- [Qemu-devel] [PULL 12/15] migration: Change name of live migration thread, Dr. David Alan Gilbert (git), 2017/01/24
- [Qemu-devel] [PULL 13/15] PCI/migration merge vmstate_pci_device and vmstate_pcie_device, Dr. David Alan Gilbert (git), 2017/01/24
- [Qemu-devel] [PULL 09/15] migration: disallow migrate_add_blocker during migration, Dr. David Alan Gilbert (git), 2017/01/24
- [Qemu-devel] [PULL 02/15] migration: extend VMStateInfo, Dr. David Alan Gilbert (git), 2017/01/24