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authorBrijesh Singh <brijesh.singh@amd.com>2018-03-08 06:48:38 -0600
committerPaolo Bonzini <pbonzini@redhat.com>2018-03-13 12:04:03 +0100
commitdb5881949f33b76c8818010acd79d31e29473514 (patch)
treed4d7be249bc2b34701af23e63dfc14e5474350ea
parente13713db5b609d9a83c9cfc8ba389d4215d4ba29 (diff)
machine: add memory-encryption option
When CPU supports memory encryption feature, the property can be used to specify the encryption object to use when launching an encrypted guest. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Marcel Apfelbaum <marcel@redhat.com> Cc: Stefan Hajnoczi <stefanha@gmail.com> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--hw/core/machine.c22
-rw-r--r--include/hw/boards.h1
-rw-r--r--qemu-options.hx5
3 files changed, 27 insertions, 1 deletions
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 5e2bbcdace..2040177664 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -334,6 +334,22 @@ static bool machine_get_enforce_config_section(Object *obj, Error **errp)
return ms->enforce_config_section;
}
+static char *machine_get_memory_encryption(Object *obj, Error **errp)
+{
+ MachineState *ms = MACHINE(obj);
+
+ return g_strdup(ms->memory_encryption);
+}
+
+static void machine_set_memory_encryption(Object *obj, const char *value,
+ Error **errp)
+{
+ MachineState *ms = MACHINE(obj);
+
+ g_free(ms->memory_encryption);
+ ms->memory_encryption = g_strdup(value);
+}
+
void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type)
{
strList *item = g_new0(strList, 1);
@@ -612,6 +628,12 @@ static void machine_class_init(ObjectClass *oc, void *data)
&error_abort);
object_class_property_set_description(oc, "enforce-config-section",
"Set on to enforce configuration section migration", &error_abort);
+
+ object_class_property_add_str(oc, "memory-encryption",
+ machine_get_memory_encryption, machine_set_memory_encryption,
+ &error_abort);
+ object_class_property_set_description(oc, "memory-encryption",
+ "Set memory encyption object to use", &error_abort);
}
static void machine_class_base_init(ObjectClass *oc, void *data)
diff --git a/include/hw/boards.h b/include/hw/boards.h
index efb0a9edfd..8ce9a7a21d 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -243,6 +243,7 @@ struct MachineState {
bool suppress_vmdesc;
bool enforce_config_section;
bool enable_graphics;
+ char *memory_encryption;
ram_addr_t ram_size;
ram_addr_t maxram_size;
diff --git a/qemu-options.hx b/qemu-options.hx
index 6585058c6c..4c280142c5 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -43,7 +43,8 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \
" suppress-vmdesc=on|off disables self-describing migration (default=off)\n"
" nvdimm=on|off controls NVDIMM support (default=off)\n"
" enforce-config-section=on|off enforce configuration section migration (default=off)\n"
- " s390-squash-mcss=on|off (deprecated) controls support for squashing into default css (default=off)\n",
+ " s390-squash-mcss=on|off (deprecated) controls support for squashing into default css (default=off)\n"
+ " memory-encryption=@var{} memory encryption object to use (default=none)\n",
QEMU_ARCH_ALL)
STEXI
@item -machine [type=]@var{name}[,prop=@var{value}[,...]]
@@ -110,6 +111,8 @@ code to send configuration section even if the machine-type sets the
@option{migration.send-configuration} property to @var{off}.
NOTE: this parameter is deprecated. Please use @option{-global}
@option{migration.send-configuration}=@var{on|off} instead.
+@item memory-encryption=@var{}
+Memory encryption object to use. The default is none.
@end table
ETEXI