Re: [RFC PATCH 3/3] tpm/tpm_svsm: use send_recv() op

From: Stefano Garzarella
Date: Thu Mar 20 2025 - 07:16:58 EST


On Wed, Mar 19, 2025 at 04:58:18PM -0300, Jason Gunthorpe wrote:
On Tue, Mar 11, 2025 at 11:01:30AM +0100, Stefano Garzarella wrote:
This driver does not support interrupts, and receiving the response is
synchronous with sending the command.

Let's simplify the driver by implementing the new send_recv() op.

Signed-off-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>
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Note: this is based on "[PATCH v3 0/4] Enlightened vTPM support for SVSM
on SEV-SNP" series [1].
If we will merge this series before it, we can just ignore this patch
and I'll squash these changes in that series.

[1] https://lore.kernel.org/linux-integrity/20250311094225.35129-1-sgarzare@xxxxxxxxxx/
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drivers/char/tpm/tpm_svsm.c | 46 ++++++++-----------------------------
1 file changed, 9 insertions(+), 37 deletions(-)

I think the diffstat speaks for itself, you should send this as
non-RFC

Ack, I'll re-send it.

Thanks,
Stefano