arm64: KVM: Fix host crash when injecting a fault into a 32bit guest

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commit 126c69a0bd upstream.

When injecting a fault into a misbehaving 32bit guest, it seems
rather idiotic to also inject a 64bit fault that is only going
to corrupt the guest state. This leads to a situation where we
perform an illegal exception return at EL2 causing the host
to crash instead of killing the guest.

Just fix the stupid bug that has been there from day 1.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

...

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Marc Zyngier 2015-08-27 16:10:01 +01:00 • committed by Luis Henriques

parent cae639d9eb

commit 05b474bd90

1 changed files with 6 additions and 6 deletions

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arch/arm64/kvm/inject_fault.c

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