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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>
This commit is contained in:
Brijesh Singh 2018-03-08 06:48:38 -06:00 committed by Paolo Bonzini
parent e13713db5b
commit db5881949f
3 changed files with 27 additions and 1 deletions
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22
hw/core/machine.c
View File

@ -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)

1
include/hw/boards.h
View File

@ -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;

5
qemu-options.hx
View File

@ -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