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[Qemu-devel] [PATCH v14 1/6] tpm: add a "ppi" boolean property
From: |
Marc-André Lureau |
Subject: |
[Qemu-devel] [PATCH v14 1/6] tpm: add a "ppi" boolean property |
Date: |
Tue, 8 Jan 2019 12:40:34 +0400 |
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 <address@hidden>
Reviewed-by: Igor Mammedov <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
---
hw/core/machine.c | 8 ++++++++
hw/tpm/tpm_crb.c | 3 +++
hw/tpm/tpm_tis.c | 3 +++
3 files changed, 14 insertions(+)
diff --git a/hw/core/machine.c b/hw/core/machine.c
index f8563efb86..92519637cb 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -40,6 +40,14 @@ GlobalProperty hw_compat_3_1[] = {
.driver = "memory-backend-memfd",
.property = "x-use-canonical-path-for-ramblock-id",
.value = "true",
+ },{
+ .driver = "tpm-crb",
+ .property = "ppi",
+ .value = "false",
+ },{
+ .driver = "tpm-tis",
+ .property = "ppi",
+ .value = "false",
},
};
const size_t hw_compat_3_1_len = G_N_ELEMENTS(hw_compat_3_1);
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(),
};
--
2.20.1.2.gb21ebb671b