crypto: ccp - simplify sev_update_firmware()

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sev_do_cmd() has its own command buffer (sev->cmd_buf) with the correct
alignment, perms, etc. that it copies the command into, so prepending it to
the firmware data is unnecessary.

Switch sev_update_firmware() to using a stack allocated command in light of
this copy, and drop all of the resulting pointer math.

Signed-off-by: Tycho Andersen (AMD) <tycho@kernel.org>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Tycho Andersen (AMD) 2026-03-02 08:02:23 -07:00 • committed by Herbert Xu

parent d23cf35880

commit 35a89319f6

1 changed files with 9 additions and 18 deletions

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27

drivers/crypto/ccp/sev-dev.c

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