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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>
master
Marc-André Lureau 2019-01-15 02:27:49 +04:00 committed by Michael S. Tsirkin
parent 812e710a96
commit b6148757f9
3 changed files with 8 additions and 0 deletions
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2
hw/core/machine.c
View File

@ -28,6 +28,8 @@ GlobalProperty hw_compat_3_1[] = {
{ "pcie-root-port", "x-width", "1" },
{ "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
{ "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
{ "tpm-crb", "ppi", "false" },
{ "tpm-tis", "ppi", "false" },
};
const size_t hw_compat_3_1_len = G_N_ELEMENTS(hw_compat_3_1);

3
hw/tpm/tpm_crb.c
View File

@ -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(),
};

3
hw/tpm/tpm_tis.c
View File

@ -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(),
};