diff options
| author | Joerg Roedel <[email protected]> | 2020-09-07 15:15:33 +0200 |
|---|---|---|
| committer | Borislav Petkov <[email protected]> | 2020-09-07 21:44:01 +0200 |
| commit | 3add38cb96a1ae7d152db69ab4329e809c2af2d4 (patch) | |
| tree | ec2c4e3701a9ea8c7da447f935dd99fd99045f5f /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf | |
| parent | 7b99819dfb60268cc1c75f83c949bc4a09221bea (diff) | |
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 <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf')
0 files changed, 0 insertions, 0 deletions