Adding upstream version 1:7.2+dfsg.upstream/1%7.2+dfsgupstream

Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>

1 files changed, 205 insertions, 0 deletions

diff --git a/hw/tpm/tpm_tis_isa.c b/hw/tpm/tpm_tis_isa.c
new file mode 100644
index 00000000..91e37922
--- /dev/null
+++ b/hw/tpm/tpm_tis_isa.c
@@ -0,0 +1,205 @@
+/*
+ * tpm_tis_isa.c - QEMU's TPM TIS ISA Device
+ *
+ * Copyright (C) 2006,2010-2013 IBM Corporation
+ *
+ * Authors:
+ *  Stefan Berger <stefanb@us.ibm.com>
+ *  David Safford <safford@us.ibm.com>
+ *
+ * Xen 4 support: Andrease Niederl <andreas.niederl@iaik.tugraz.at>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ * Implementation of the TIS interface according to specs found at
+ * http://www.trustedcomputinggroup.org. This implementation currently
+ * supports version 1.3, 21 March 2013
+ * In the developers menu choose the PC Client section then find the TIS
+ * specification.
+ *
+ * TPM TIS for TPM 2 implementation following TCG PC Client Platform
+ * TPM Profile (PTP) Specification, Familiy 2.0, Revision 00.43
+ */
+
+#include "qemu/osdep.h"
+#include "hw/isa/isa.h"
+#include "hw/qdev-properties.h"
+#include "migration/vmstate.h"
+#include "hw/acpi/tpm.h"
+#include "tpm_prop.h"
+#include "tpm_tis.h"
+#include "qom/object.h"
+#include "hw/acpi/acpi_aml_interface.h"
+
+struct TPMStateISA {
+    /*< private >*/
+    ISADevice parent_obj;
+
+    /*< public >*/
+    TPMState state; /* not a QOM object */
+};
+
+OBJECT_DECLARE_SIMPLE_TYPE(TPMStateISA, TPM_TIS_ISA)
+
+static int tpm_tis_pre_save_isa(void *opaque)
+{
+    TPMStateISA *isadev = opaque;
+
+    return tpm_tis_pre_save(&isadev->state);
+}
+
+static const VMStateDescription vmstate_tpm_tis_isa = {
+    .name = "tpm-tis",
+    .version_id = 0,
+    .pre_save  = tpm_tis_pre_save_isa,
+    .fields = (VMStateField[]) {
+        VMSTATE_BUFFER(state.buffer, TPMStateISA),
+        VMSTATE_UINT16(state.rw_offset, TPMStateISA),
+        VMSTATE_UINT8(state.active_locty, TPMStateISA),
+        VMSTATE_UINT8(state.aborting_locty, TPMStateISA),
+        VMSTATE_UINT8(state.next_locty, TPMStateISA),
+
+        VMSTATE_STRUCT_ARRAY(state.loc, TPMStateISA, TPM_TIS_NUM_LOCALITIES, 0,
+                             vmstate_locty, TPMLocality),
+
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static void tpm_tis_isa_request_completed(TPMIf *ti, int ret)
+{
+    TPMStateISA *isadev = TPM_TIS_ISA(ti);
+    TPMState *s = &isadev->state;
+
+    tpm_tis_request_completed(s, ret);
+}
+
+static enum TPMVersion tpm_tis_isa_get_tpm_version(TPMIf *ti)
+{
+    TPMStateISA *isadev = TPM_TIS_ISA(ti);
+    TPMState *s = &isadev->state;
+
+    return tpm_tis_get_tpm_version(s);
+}
+
+static void tpm_tis_isa_reset(DeviceState *dev)
+{
+    TPMStateISA *isadev = TPM_TIS_ISA(dev);
+    TPMState *s = &isadev->state;
+
+    return tpm_tis_reset(s);
+}
+
+static Property tpm_tis_isa_properties[] = {
+    DEFINE_PROP_UINT32("irq", TPMStateISA, state.irq_num, TPM_TIS_IRQ),
+    DEFINE_PROP_TPMBE("tpmdev", TPMStateISA, state.be_driver),
+    DEFINE_PROP_BOOL("ppi", TPMStateISA, state.ppi_enabled, true),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void tpm_tis_isa_initfn(Object *obj)
+{
+    TPMStateISA *isadev = TPM_TIS_ISA(obj);
+    TPMState *s = &isadev->state;
+
+    memory_region_init_io(&s->mmio, obj, &tpm_tis_memory_ops,
+                          s, "tpm-tis-mmio",
+                          TPM_TIS_NUM_LOCALITIES << TPM_TIS_LOCALITY_SHIFT);
+}
+
+static void tpm_tis_isa_realizefn(DeviceState *dev, Error **errp)
+{
+    TPMStateISA *isadev = TPM_TIS_ISA(dev);
+    TPMState *s = &isadev->state;
+
+    if (!tpm_find()) {
+        error_setg(errp, "at most one TPM device is permitted");
+        return;
+    }
+
+    if (!s->be_driver) {
+        error_setg(errp, "'tpmdev' property is required");
+        return;
+    }
+    if (s->irq_num > 15) {
+        error_setg(errp, "IRQ %d is outside valid range of 0 to 15",
+                   s->irq_num);
+        return;
+    }
+
+    s->irq = isa_get_irq(ISA_DEVICE(dev), s->irq_num);
+
+    memory_region_add_subregion(isa_address_space(ISA_DEVICE(dev)),
+                                TPM_TIS_ADDR_BASE, &s->mmio);
+
+    if (s->ppi_enabled) {
+        tpm_ppi_init(&s->ppi, isa_address_space(ISA_DEVICE(dev)),
+                     TPM_PPI_ADDR_BASE, OBJECT(dev));
+    }
+}
+
+static void build_tpm_tis_isa_aml(AcpiDevAmlIf *adev, Aml *scope)
+{
+    Aml *dev, *crs;
+    TPMStateISA *isadev = TPM_TIS_ISA(adev);
+    TPMIf *ti = TPM_IF(isadev);
+
+    dev = aml_device("TPM");
+    if (tpm_tis_isa_get_tpm_version(ti) == TPM_VERSION_2_0) {
+        aml_append(dev, aml_name_decl("_HID", aml_string("MSFT0101")));
+        aml_append(dev, aml_name_decl("_STR", aml_string("TPM 2.0 Device")));
+    } else {
+        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C31")));
+    }
+    aml_append(dev, aml_name_decl("_UID", aml_int(1)));
+    aml_append(dev, aml_name_decl("_STA", aml_int(0xF)));
+    crs = aml_resource_template();
+    aml_append(crs, aml_memory32_fixed(TPM_TIS_ADDR_BASE, TPM_TIS_ADDR_SIZE,
+                                      AML_READ_WRITE));
+    /*
+     * FIXME: TPM_TIS_IRQ=5 conflicts with PNP0C0F irqs,
+     * fix default TPM_TIS_IRQ value there to use some unused IRQ
+     */
+    /* aml_append(crs, aml_irq_no_flags(isadev->state.irq_num)); */
+    aml_append(dev, aml_name_decl("_CRS", crs));
+    tpm_build_ppi_acpi(ti, dev);
+    aml_append(scope, dev);
+}
+
+static void tpm_tis_isa_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    TPMIfClass *tc = TPM_IF_CLASS(klass);
+    AcpiDevAmlIfClass *adevc = ACPI_DEV_AML_IF_CLASS(klass);
+
+    device_class_set_props(dc, tpm_tis_isa_properties);
+    dc->vmsd  = &vmstate_tpm_tis_isa;
+    tc->model = TPM_MODEL_TPM_TIS;
+    dc->realize = tpm_tis_isa_realizefn;
+    dc->reset = tpm_tis_isa_reset;
+    tc->request_completed = tpm_tis_isa_request_completed;
+    tc->get_version = tpm_tis_isa_get_tpm_version;
+    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
+    adevc->build_dev_aml = build_tpm_tis_isa_aml;
+}
+
+static const TypeInfo tpm_tis_isa_info = {
+    .name = TYPE_TPM_TIS_ISA,
+    .parent = TYPE_ISA_DEVICE,
+    .instance_size = sizeof(TPMStateISA),
+    .instance_init = tpm_tis_isa_initfn,
+    .class_init  = tpm_tis_isa_class_init,
+    .interfaces = (InterfaceInfo[]) {
+        { TYPE_TPM_IF },
+        { TYPE_ACPI_DEV_AML_IF },
+        { }
+    }
+};
+
+static void tpm_tis_isa_register(void)
+{
+    type_register_static(&tpm_tis_isa_info);
+}
+
+type_init(tpm_tis_isa_register)