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| author | Joerg Roedel <jroedel@suse.de> | 2020-10-28 17:46:57 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-10-29 18:06:52 +0100 |
| commit | 86ce43f7dde81562f58b24b426cef068bd9f7595 (patch) | |
| tree | f3042a795cff8aa037faa8c7d77e61d003af12d7 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | ed7b895f3efb5df184722f5a30f8164fcaffceb1 (diff) | |
x86/boot/compressed/64: Check SEV encryption in 64-bit boot-path
Check whether the hypervisor reported the correct C-bit when running as
an SEV guest. Using a wrong C-bit position could be used to leak
sensitive data from the guest to the hypervisor.
The check function is in a separate file:
arch/x86/kernel/sev_verify_cbit.S
so that it can be re-used in the running kernel image.
[ bp: Massage. ]
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lkml.kernel.org/r/20201028164659.27002-4-joro@8bytes.org
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions