x86/sev-es: Handle #DB Events

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Handle #VC exceptions caused by #DB exceptions in the guest. Those
must be handled outside of instrumentation_begin()/end() so that the
handler will not be raised recursively.

Handle them by calling the kernel's debug exception handler.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200907131613.12703-62-joro@8bytes.org

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Joerg Roedel 2020-09-07 15:16:02 +02:00 • committed by Borislav Petkov

parent a2d0171a9c

commit cb1ad3ecea

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arch/x86/kernel/sev-es.c

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