Wei Liu
2d2f356d94
devices: tpm: failure to deliver request is considered fatal
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Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-31 18:09:18 +00:00
Wei Liu
73af65f417
tpm: drop unused fields in BackendCmd struct
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They are never used.
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-26 07:57:48 +00:00
Wei Liu
cffde0ff65
devices: avoid unnecessary allocations in TPM code
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Use the data buffer in the TPM device directly.
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-26 07:57:48 +00:00
Wei Liu
60425471dd
tpm: get_buffer_size always succeeds
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Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-26 07:57:48 +00:00
Wei Liu
2b76e1d7ba
devices: simplify TPM handling
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The error is never propagated anywhere. Drop it.
Avoid unwrapping unconditionally.
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-26 07:57:48 +00:00
Wei Liu
15ace525be
devices: drop cmd field from TPM struct
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There is no need to hold on to it. It is only used locally in a
function.
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-26 07:57:48 +00:00
Wei Liu
8db630763a
devices: clean up two comments in TPM code
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Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-25 18:40:57 +00:00
Wei Liu
cd1470e289
devices: rework TPM register and field look-up
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Match against enums instead.
This then drops the need to import phf.
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-25 18:40:57 +00:00
Wei Liu
99d8c34861
devices: change TPM_CRB_R_MAX from u32 to usize
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This simplifies the code a bit.
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-01-25 18:40:57 +00:00
Rob Bradford
5e52729453
misc: Automatically fix cargo clippy issues added in 1.65 (stable)
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Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-12-14 14:27:19 +00:00
Praveen K Paladugu
d0b253d15f
devices: Add tpm device
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This device emulates a tpm device in cloud-hypervisor. Read and write support
to miminal set of control registers is supported.
Non-control commands will be processed as reads and write to
CRB_DATA_BUFFER. Reads and Writes to this data buffer are forwarded to
swtpm via the configured data_fd.
Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com>
Co-authored-by: Sean Yoo <t-seanyoo@microsoft.com>
2022-11-15 16:42:21 +00:00
