x86/sev-es: Forward page-faults which happen during emulation

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commit c25bbdb564 upstream.

When emulating guest instructions for MMIO or IOIO accesses, the #VC
handler might get a page-fault and will not be able to complete. Forward
the page-fault in this case to the correct handler instead of killing
the machine.

Fixes: 0786138c78 ("x86/sev-es: Add a Runtime #VC Exception Handler")
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: stable@vger.kernel.org # v5.10+
Link: https://lkml.kernel.org/r/20210519135251.30093-3-joro@8bytes.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Joerg Roedel 2021-05-19 15:52:45 +02:00 • committed by Greg Kroah-Hartman

parent 5af89eeb74

commit 367c90f2bc

1 changed files with 4 additions and 0 deletions

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arch/x86/kernel/sev-es.c

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