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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2019-03-27 15:12:20 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-16 19:45:06 +0200 |
| commit | 5664d3298b3bd31cb0fbe89cc5ed2d748a370bcc (patch) | |
| tree | 68aded273f39b6199a1d68fbc1ce6ad41cce87eb /tools/lib | |
| parent | b79c1ea82e3b0a67b471516fc9e32ea698b6f7c5 (diff) | |
KVM: x86: avoid misreporting level-triggered irqs as edge-triggered in tracing
[ Upstream commit 7a223e06b1a411cef6c4cd7a9b9a33c8d225b10e ]
In __apic_accept_irq() interface trig_mode is int and actually on some code
paths it is set above u8:
kvm_apic_set_irq() extracts it from 'struct kvm_lapic_irq' where trig_mode
is u16. This is done on purpose as e.g. kvm_set_msi_irq() sets it to
(1 << 15) & e->msi.data
kvm_apic_local_deliver sets it to reg & (1 << 15).
Fix the immediate issue by making 'tm' into u16. We may also want to adjust
__apic_accept_irq() interface and use proper sizes for vector, level,
trig_mode but this is not urgent.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/lib')
0 files changed, 0 insertions, 0 deletions