diff options
| author | Vitaly Kuznetsov <[email protected]> | 2022-03-25 14:21:38 +0100 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2022-03-29 13:21:21 -0400 |
| commit | 7ec37d1cbe17d8189d9562178d8b29167fe1c31a (patch) | |
| tree | 0109bfd3ab51fd0b929481f3ea8c45aa76ae1e18 /tools/perf/scripts/python/stackcollapse.py | |
| parent | cde363ab7ca7aea7a853851cd6a6745a9e1aaf5e (diff) | |
KVM: x86: Check lapic_in_kernel() before attempting to set a SynIC irq
When KVM_CAP_HYPERV_SYNIC{,2} is activated, KVM already checks for
irqchip_in_kernel() so normally SynIC irqs should never be set. It is,
however, possible for a misbehaving VMM to write to SYNIC/STIMER MSRs
causing erroneous behavior.
The immediate issue being fixed is that kvm_irq_delivery_to_apic()
(kvm_irq_delivery_to_apic_fast()) crashes when called with
'irq.shorthand = APIC_DEST_SELF' and 'src == NULL'.
Signed-off-by: Vitaly Kuznetsov <[email protected]>
Message-Id: <[email protected]>
Cc: [email protected]
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions