KVM: Hyper-V: do not do hypercall userspace exits if SynIC is disabled

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If SynIC is disabled, there is nothing that userspace can do to
handle these exits; on the other hand, userspace probably will
not know about KVM_EXIT_HYPERV_HCALL and complain about it or
even exit.  Just prevent anything bad from happening by handling
the hypercall in KVM and returning an "invalid hypercall" code.

Fixes: 83326e43f2
Cc: Andrey Smetanin <irqlevel@gmail.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Paolo Bonzini 2016-03-29 11:23:25 +02:00

parent 321c5658c5

commit a2b5c3c0c8

1 changed files with 5 additions and 0 deletions

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arch/x86/kvm/hyperv.c

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