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authorIsaku Yamahata <isaku.yamahata@intel.com>2021-02-17 21:51:11 -0800
committerMichael S. Tsirkin <mst@redhat.com>2021-02-23 10:58:42 -0500
commit24cd04fce06b0d54e5ca2c12f20f714894a78b95 (patch)
tree33b7a4e469e08c03948deb97fd1d7dd494875512 /hw/isa/lpc_ich9.c
parent7995d9a399ecb7f509e2862b96bc2dcb249a8d44 (diff)
ich9, piix4: add property, smm-compat, to keep compatibility of SMM
The following patch will introduce incompatible behavior of SMM. Introduce a property to keep the old behavior for compatibility. To enable smm compat, use "-global ICH9-LPC.smm-compat=on" or "-global PIIX4_PM.smm-compat=on" Suggested-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com> Message-Id: <47254ae0b8c6cc6945422978b6b2af2d213ef891.1613615732.git.isaku.yamahata@intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Diffstat (limited to 'hw/isa/lpc_ich9.c')
-rw-r--r--hw/isa/lpc_ich9.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index d3145bf014..3963b73520 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -775,6 +775,7 @@ static const VMStateDescription vmstate_ich9_lpc = {
static Property ich9_lpc_properties[] = {
DEFINE_PROP_BOOL("noreboot", ICH9LPCState, pin_strap.spkr_hi, true),
+ DEFINE_PROP_BOOL("smm-compat", ICH9LPCState, pm.smm_compat, false),
DEFINE_PROP_BIT64("x-smi-broadcast", ICH9LPCState, smi_host_features,
ICH9_LPC_SMI_F_BROADCAST_BIT, true),
DEFINE_PROP_BIT64("x-smi-cpu-hotplug", ICH9LPCState, smi_host_features,