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tpm: fix TPM reset

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use the right prototype for the memset() clearing the TPM .bss space
on reset, use addresses of variables instead of their values, and do
not clear tpm_resisters.c .bss section, tpm_init() does the right
thing.

BRANCH=gru
BUG=chrome-os-partner:52366
TEST=make buildall

Change-Id: I4c8c0ae61a0e70c9fc211420bbf44bbc7d8de3ed
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/389331
Commit-Ready: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
This commit is contained in:
Vincent Palatin
2016-09-26 08:43:26 +02:00
committed by chrome-bot
parent 8697386a8b
commit 75aaabcd9a
1 changed files with 3 additions and 1 deletions
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4
common/tpm_registers.c
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@@ -614,7 +614,9 @@ static void tpm_reset_now(void)
* includes this file's .bss in the same section, so it will be cleared
* at the same time.
*/
memset(__bss_libtpm2_start, __bss_libtpm2_end - __bss_libtpm2_start, 0);
memset(&__bss_libtpm2_start, 0,
(uintptr_t)(&__bss_libtpm2_end) -
(uintptr_t)(&__bss_libtpm2_start));
/*
* NOTE: Any initialized variables in this file must be placed in a