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| author |   Joerg Roedel <jroedel@suse.de> | 2020-09-07 15:15:33 +0200 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2020-09-07 21:44:01 +0200 |
| commit | 3add38cb96a1ae7d152db69ab4329e809c2af2d4 (patch) | |
| tree | ec2c4e3701a9ea8c7da447f935dd99fd99045f5f /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | x86/head/64: Load segment registers earlier (diff) | |
| download | wireguard-linux-3add38cb96a1ae7d152db69ab4329e809c2af2d4.tar.xz wireguard-linux-3add38cb96a1ae7d152db69ab4329e809c2af2d4.zip | |
x86/head/64: Switch to initial stack earlier
Make sure there is a stack once the kernel runs from virtual addresses.
At this stage any secondary CPU which boots will have lost its stack
because the kernel switched to a new page-table which does not map the
real-mode stack anymore.
This is needed for handling early #VC exceptions caused by instructions
like CPUID.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lkml.kernel.org/r/20200907131613.12703-33-joro@8bytes.org
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions