From: Michal Privoznik <mprivozn@redhat.com>
To: qemu-devel@nongnu.org
Cc: imammedo@redhat.com, ehabkost@redhat.com, armbru@redhat.com
Subject: [PATCH 2/2] qmp: Expose MachineClass::default_ram_id
Date: Mon, 25 May 2020 19:03:28 +0200 [thread overview]
Message-ID: <2dbffbc4e2c0f3a0184daaadf56f94a85aedef58.1590426097.git.mprivozn@redhat.com> (raw)
In-Reply-To: <cover.1590426097.git.mprivozn@redhat.com>
If a management application (like Libvirt) want's to preserve
migration ability and switch to '-machine memory-backend' it
needs to set exactly the same RAM id as QEMU would. Since the id
is machine type dependant, expose it under 'query-machines'
result.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
---
hw/core/machine-qmp-cmds.c | 1 +
qapi/machine.json | 5 ++++-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c
index 2c5da8413d..8333e674ce 100644
--- a/hw/core/machine-qmp-cmds.c
+++ b/hw/core/machine-qmp-cmds.c
@@ -234,6 +234,7 @@ MachineInfoList *qmp_query_machines(Error **errp)
info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
info->numa_mem_supported = mc->numa_mem_supported;
info->deprecated = !!mc->deprecation_reason;
+ info->default_ram_id = g_strdup(mc->default_ram_id);
if (mc->default_cpu_type) {
info->default_cpu_type = g_strdup(mc->default_cpu_type);
info->has_default_cpu_type = true;
diff --git a/qapi/machine.json b/qapi/machine.json
index 39caa1d914..e5647c4031 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -352,6 +352,8 @@
# in future versions of QEMU according to the QEMU deprecation
# policy (since 4.1.0)
#
+# @default-ram-id: the default name of initial RAM memory region (since 5.1)
+#
# @default-cpu-type: default CPU model typename if none is requested via
# the -cpu argument. (since 4.2)
#
@@ -361,7 +363,8 @@
'data': { 'name': 'str', '*alias': 'str',
'*is-default': 'bool', 'cpu-max': 'int',
'hotpluggable-cpus': 'bool', 'numa-mem-supported': 'bool',
- 'deprecated': 'bool', '*default-cpu-type': 'str' } }
+ 'deprecated': 'bool', 'default-ram-id': 'str',
+ '*default-cpu-type': 'str' } }
##
# @query-machines:
--
2.26.2
next prev parent reply other threads:[~2020-05-25 17:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-25 17:03 [PATCH 0/2] qmp: Expose MachineClass::default_ram_id Michal Privoznik
2020-05-25 17:03 ` [PATCH 1/2] qapi: Fix comment format for @CpuInstanceProperties Michal Privoznik
2020-05-26 20:02 ` Eric Blake
2020-05-25 17:03 ` Michal Privoznik [this message]
2020-05-25 18:06 ` [PATCH 2/2] qmp: Expose MachineClass::default_ram_id Eduardo Habkost
2020-05-26 8:06 ` Michal Privoznik
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