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| H A D | hw_breakpoint.c | diff 97417cb9ad4ed052d7a4c5c0d75db1ff1b0981fb Fri May 29 23:27:30 CEST 2020 Lai Jiangshan <laijs@linux.alibaba.com> x86/hw_breakpoint: Prevent data breakpoints on direct GDT
A data breakpoint on the GDT can be fatal and must be avoided. The GDT in
the CPU entry area is already protected, but not the direct GDT.
Add the necessary protection.
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200526014221.2119-3-laijs@linux.alibaba.com
Link: https://lkml.kernel.org/r/20200529213320.840953950@infradead.org
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