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| author | Ingo Molnar <mingo@kernel.org> | 2017-09-01 11:04:56 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-09-01 11:04:56 +0200 |
| commit | c6ef89421e236d75693ae968d80d44a52409889d (patch) | |
| tree | 121cf5e22a03352ee9294ef02172ee5da72228c8 /drivers/xen | |
| parent | x86/xen: Get rid of paravirt op adjust_exception_frame (diff) | |
| download | linux-c6ef89421e236d75693ae968d80d44a52409889d.tar.xz linux-c6ef89421e236d75693ae968d80d44a52409889d.zip | |
x86/idt: Fix the X86_TRAP_BP gate
Andrei Vagin reported a CRIU regression and bisected it back to:
90f6225fba0c ("x86/idt: Move IST stack based traps to table init")
This table init conversion loses the system-gate property of X86_TRAP_BP
and erroneously moves it from DPL3 to DPL0.
Fix it.
Reported-by: Andrei Vagin <avagin@virtuozzo.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: dvlasenk@redhat.com
Cc: linux-tip-commits@vger.kernel.org
Cc: peterz@infradead.org
Cc: brgerst@gmail.com
Cc: rostedt@goodmis.org
Cc: bp@alien8.de
Cc: luto@kernel.org
Cc: jpoimboe@redhat.com
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: torvalds@linux-foundation.org
Cc: tip-bot for Jacob Shin <tipbot@zytor.com>
Link: http://lkml.kernel.org/r/20170901082630.xvyi5bwk6etmppqc@gmail.com
Diffstat (limited to 'drivers/xen')
0 files changed, 0 insertions, 0 deletions