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authorMarc-André Lureau <marcandre.lureau@redhat.com>2019-01-15 02:27:49 +0400
committerMichael S. Tsirkin <mst@redhat.com>2019-01-17 21:10:57 -0500
commitb6148757f9baa2de11304c09aaf9f9a276c825cd (patch)
treede6e54bff2ccff80596eb21e9c0dc14dc16d5921 /hw/tpm
parent812e710a9624a3bf3c8bb126ac546b683edb60d5 (diff)
tpm: add a "ppi" boolean property
The following patches implement the TPM Physical Presence Interface, make use of a new memory region and a fw_cfg entry. Enable PPI by default with >=4.0 machine type, to avoid migration issues. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Tested-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/tpm')
-rw-r--r--hw/tpm/tpm_crb.c3
-rw-r--r--hw/tpm/tpm_tis.c3
2 files changed, 6 insertions, 0 deletions
diff --git a/hw/tpm/tpm_crb.c b/hw/tpm/tpm_crb.c
index a92dd50437..d5b0ac5920 100644
--- a/hw/tpm/tpm_crb.c
+++ b/hw/tpm/tpm_crb.c
@@ -41,6 +41,8 @@ typedef struct CRBState {
MemoryRegion cmdmem;
size_t be_buffer_size;
+
+ bool ppi_enabled;
} CRBState;
#define CRB(obj) OBJECT_CHECK(CRBState, (obj), TYPE_TPM_CRB)
@@ -221,6 +223,7 @@ static const VMStateDescription vmstate_tpm_crb = {
static Property tpm_crb_properties[] = {
DEFINE_PROP_TPMBE("tpmdev", CRBState, tpmbe),
+ DEFINE_PROP_BOOL("ppi", CRBState, ppi_enabled, true),
DEFINE_PROP_END_OF_LIST(),
};
diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c
index 2563d7501f..1698d83cd3 100644
--- a/hw/tpm/tpm_tis.c
+++ b/hw/tpm/tpm_tis.c
@@ -81,6 +81,8 @@ typedef struct TPMState {
TPMVersion be_tpm_version;
size_t be_buffer_size;
+
+ bool ppi_enabled;
} TPMState;
#define TPM(obj) OBJECT_CHECK(TPMState, (obj), TYPE_TPM_TIS)
@@ -954,6 +956,7 @@ static const VMStateDescription vmstate_tpm_tis = {
static Property tpm_tis_properties[] = {
DEFINE_PROP_UINT32("irq", TPMState, irq_num, TPM_TIS_IRQ),
DEFINE_PROP_TPMBE("tpmdev", TPMState, be_driver),
+ DEFINE_PROP_BOOL("ppi", TPMState, ppi_enabled, true),
DEFINE_PROP_END_OF_LIST(),
};