selftests/sgx: Include memory clobber for inline asm in test enclave

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[ Upstream commit 853a57a43e ]

Add the "memory" clobber to the EMODPE and EACCEPT asm blocks to tell the
compiler the assembly code accesses to the secinfo struct. This ensures
the compiler treats the asm block as a memory barrier and the write to
secinfo will be visible to ENCLU.

Fixes: 20404a8085 ("selftests/sgx: Add test for EPCM permission changes")
Signed-off-by: Jo Van Bulck <jo.vanbulck@cs.kuleuven.be>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Kai Huang <kai.huang@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://lore.kernel.org/all/20231005153854.25566-4-jo.vanbulck%40cs.kuleuven.be
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jo Van Bulck 2023-10-05 17:38:44 +02:00 • committed by Greg Kroah-Hartman

parent d8d880e2ce

commit f156f76234

1 changed files with 5 additions and 3 deletions

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tools/testing/selftests/sgx/test_encl.c

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