diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c index 22cb5df717..b22b5beda3 100644 --- a/hw/virtio/virtio-balloon.c +++ b/hw/virtio/virtio-balloon.c @@ -24,7 +24,7 @@ #include "hw/virtio/virtio-balloon.h" #include "exec/address-spaces.h" #include "qapi/error.h" -#include "qapi/qapi-events-misc.h" +#include "qapi/qapi-events-machine.h" #include "qapi/visitor.h" #include "trace.h" #include "qemu/error-report.h" diff --git a/include/sysemu/balloon.h b/include/sysemu/balloon.h index 20a2defe3a..867687b73a 100644 --- a/include/sysemu/balloon.h +++ b/include/sysemu/balloon.h @@ -15,7 +15,7 @@ #define QEMU_BALLOON_H #include "exec/cpu-common.h" -#include "qapi/qapi-types-misc.h" +#include "qapi/qapi-types-machine.h" typedef void (QEMUBalloonEvent)(void *opaque, ram_addr_t target); typedef void (QEMUBalloonStatus)(void *opaque, BalloonInfo *info); diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c index 7711726fd2..de01ba2084 100644 --- a/monitor/hmp-cmds.c +++ b/monitor/hmp-cmds.c @@ -32,6 +32,7 @@ #include "qapi/qapi-commands-block.h" #include "qapi/qapi-commands-char.h" #include "qapi/qapi-commands-control.h" +#include "qapi/qapi-commands-machine.h" #include "qapi/qapi-commands-migration.h" #include "qapi/qapi-commands-misc.h" #include "qapi/qapi-commands-net.h" diff --git a/qapi/machine.json b/qapi/machine.json index 8e2164a0b6..2accb3c4d2 100644 --- a/qapi/machine.json +++ b/qapi/machine.json @@ -945,3 +945,93 @@ 'data': 'NumaOptions', 'allow-preconfig': true } + +## +# @balloon: +# +# Request the balloon driver to change its balloon size. +# +# @value: the target logical size of the VM in bytes +# We can deduce the size of the balloon using this formula: +# logical_vm_size = vm_ram_size - balloon_size +# From it we have: balloon_size = vm_ram_size - @value +# +# Returns: - Nothing on success +# - If the balloon driver is enabled but not functional because the KVM +# kernel module cannot support it, KvmMissingCap +# - If no balloon device is present, DeviceNotActive +# +# Notes: This command just issues a request to the guest. When it returns, +# the balloon size may not have changed. A guest can change the balloon +# size independent of this command. +# +# Since: 0.14.0 +# +# Example: +# +# -> { "execute": "balloon", "arguments": { "value": 536870912 } } +# <- { "return": {} } +# +# With a 2.5GiB guest this command inflated the ballon to 3GiB. +# +## +{ 'command': 'balloon', 'data': {'value': 'int'} } + +## +# @BalloonInfo: +# +# Information about the guest balloon device. +# +# @actual: the logical size of the VM in bytes +# Formula used: logical_vm_size = vm_ram_size - balloon_size +# +# Since: 0.14.0 +# +## +{ 'struct': 'BalloonInfo', 'data': {'actual': 'int' } } + +## +# @query-balloon: +# +# Return information about the balloon device. +# +# Returns: - @BalloonInfo on success +# - If the balloon driver is enabled but not functional because the KVM +# kernel module cannot support it, KvmMissingCap +# - If no balloon device is present, DeviceNotActive +# +# Since: 0.14.0 +# +# Example: +# +# -> { "execute": "query-balloon" } +# <- { "return": { +# "actual": 1073741824, +# } +# } +# +## +{ 'command': 'query-balloon', 'returns': 'BalloonInfo' } + +## +# @BALLOON_CHANGE: +# +# Emitted when the guest changes the actual BALLOON level. This value is +# equivalent to the @actual field return by the 'query-balloon' command +# +# @actual: the logical size of the VM in bytes +# Formula used: logical_vm_size = vm_ram_size - balloon_size +# +# Note: this event is rate-limited. +# +# Since: 1.2 +# +# Example: +# +# <- { "event": "BALLOON_CHANGE", +# "data": { "actual": 944766976 }, +# "timestamp": { "seconds": 1267020223, "microseconds": 435656 } } +# +## +{ 'event': 'BALLOON_CHANGE', + 'data': { 'actual': 'int' } } diff --git a/qapi/misc.json b/qapi/misc.json index a667fdf03e..7a14c50094 100644 --- a/qapi/misc.json +++ b/qapi/misc.json @@ -187,65 +187,6 @@ { 'command': 'query-iothreads', 'returns': ['IOThreadInfo'], 'allow-preconfig': true } -## -# @BalloonInfo: -# -# Information about the guest balloon device. -# -# @actual: the logical size of the VM in bytes -# Formula used: logical_vm_size = vm_ram_size - balloon_size -# -# Since: 0.14.0 -# -## -{ 'struct': 'BalloonInfo', 'data': {'actual': 'int' } } - -## -# @query-balloon: -# -# Return information about the balloon device. -# -# Returns: - @BalloonInfo on success -# - If the balloon driver is enabled but not functional because the KVM -# kernel module cannot support it, KvmMissingCap -# - If no balloon device is present, DeviceNotActive -# -# Since: 0.14.0 -# -# Example: -# -# -> { "execute": "query-balloon" } -# <- { "return": { -# "actual": 1073741824, -# } -# } -# -## -{ 'command': 'query-balloon', 'returns': 'BalloonInfo' } - -## -# @BALLOON_CHANGE: -# -# Emitted when the guest changes the actual BALLOON level. This value is -# equivalent to the @actual field return by the 'query-balloon' command -# -# @actual: the logical size of the VM in bytes -# Formula used: logical_vm_size = vm_ram_size - balloon_size -# -# Note: this event is rate-limited. -# -# Since: 1.2 -# -# Example: -# -# <- { "event": "BALLOON_CHANGE", -# "data": { "actual": 944766976 }, -# "timestamp": { "seconds": 1267020223, "microseconds": 435656 } } -# -## -{ 'event': 'BALLOON_CHANGE', - 'data': { 'actual': 'int' } } - ## # @PciMemoryRange: # @@ -756,37 +697,6 @@ ## { 'command': 'inject-nmi' } -## -# @balloon: -# -# Request the balloon driver to change its balloon size. -# -# @value: the target logical size of the VM in bytes -# We can deduce the size of the balloon using this formula: -# logical_vm_size = vm_ram_size - balloon_size -# From it we have: balloon_size = vm_ram_size - @value -# -# Returns: - Nothing on success -# - If the balloon driver is enabled but not functional because the KVM -# kernel module cannot support it, KvmMissingCap -# - If no balloon device is present, DeviceNotActive -# -# Notes: This command just issues a request to the guest. When it returns, -# the balloon size may not have changed. A guest can change the balloon -# size independent of this command. -# -# Since: 0.14.0 -# -# Example: -# -# -> { "execute": "balloon", "arguments": { "value": 536870912 } } -# <- { "return": {} } -# -# With a 2.5GiB guest this command inflated the balloon to 3GiB. -# -## -{ 'command': 'balloon', 'data': {'value': 'int'} } - ## # @human-monitor-command: # diff --git a/softmmu/balloon.c b/softmmu/balloon.c index 23452295cd..e0e8969a4b 100644 --- a/softmmu/balloon.c +++ b/softmmu/balloon.c @@ -29,7 +29,7 @@ #include "sysemu/kvm.h" #include "sysemu/balloon.h" #include "qapi/error.h" -#include "qapi/qapi-commands-misc.h" +#include "qapi/qapi-commands-machine.h" #include "qapi/qmp/qerror.h" #include "trace.h"