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| author | Jennifer Herbert <jennifer.herbert@citrix.com> | 2023-05-08 14:13:56 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2023-05-08 14:13:56 +0200 |
| commit | 5828b94b252ca29c8ef4a7464b9dd32a5f8a7ded (patch) | |
| tree | 682f743bb2d28d3a70494cbbf41c613de30da891 /docs | |
| parent | e93e635e142d45e3904efb4a05e2b3b52a708b4f (diff) | |
| download | xen-5828b94b252ca29c8ef4a7464b9dd32a5f8a7ded.tar.gz | |
acpi: make TPM version configurable
This patch makes the TPM version, for which the ACPI library probes, configurable.
If acpi_config.tpm_verison is set to 1, it indicates that 1.2 (TCPA) should be probed.
I have also added to hvmloader an option to allow setting this new config, which can
be triggered by setting the platform/tpm_verion xenstore key.
Signed-off-by: Jennifer Herbert <jennifer.herbert@citrix.com>
Reviewed-by: Jason Andryuk <jandryuk@gmail.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/misc/xenstore-paths.pandoc | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/docs/misc/xenstore-paths.pandoc b/docs/misc/xenstore-paths.pandoc index 5cd5c8a3b9..e67e164855 100644 --- a/docs/misc/xenstore-paths.pandoc +++ b/docs/misc/xenstore-paths.pandoc @@ -269,6 +269,15 @@ at the guest physical address in HVM_PARAM_VM_GENERATION_ID_ADDR. See Microsoft's "Virtual Machine Generation ID" specification for the circumstances where the generation ID needs to be changed. + +#### ~/platform/tpm_version = INTEGER [HVM,INTERNAL] + +The TPM version to be probed for. + +A value of 1 indicates to probe for TPM 1.2. +A value of 0 or an invalid value will result in no TPM being probed. +If unset, a default of 1 is assumed. + ### Frontend device paths Paravirtual device frontends are generally specified by their own |