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authorStefan Berger2018-10-30 22:33:53 +0100
committerStefan Berger2018-10-30 22:33:53 +0100
commit7931cf31265e1f1a1011fde897c8609fe133c734 (patch)
tree7f0d8e64d24a468df4e6cbc9c0402c72d212175f /docs/specs
parenttests/tpm: Display if swtpm is not found or --tpm2 not supported (diff)
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docs: tpm: Mention implemented TPM CRB interface emulation and specs
Add a few sentences about the implemented emulation of the TPM CRB interface and its specification. Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Diffstat (limited to 'docs/specs')
-rw-r--r--docs/specs/tpm.txt15
1 files changed, 15 insertions, 0 deletions
diff --git a/docs/specs/tpm.txt b/docs/specs/tpm.txt
index 0e9bbebe1d..1af82bba86 100644
--- a/docs/specs/tpm.txt
+++ b/docs/specs/tpm.txt
@@ -20,6 +20,21 @@ QEMU files related to TPM TIS interface:
- hw/tpm/tpm_tis.h
+QEMU also implements a TPM CRB interface following the Trusted Computing
+Group's specification "TCG PC Client Platform TPM Profile (PTP)
+Specification", Family "2.0", Level 00 Revision 01.03 v22, May 22, 2017.
+This specification, or a later version of it, can be accessed from the
+following URL:
+
+https://trustedcomputinggroup.org/resource/pc-client-platform-tpm-profile-ptp-specification/
+
+The CRB interface makes a memory mapped IO region in the area 0xfed40000 -
+0xfed40fff (1 locality) available to the guest operating system.
+
+QEMU files related to TPM CRB interface:
+ - hw/tpm/tpm_crb.c
+
+
= ACPI Interface =
The TPM device is defined with ACPI ID "PNP0C31". QEMU builds a SSDT and passes