tree e5d433f41dd7d413f054c04b3c429c423a399235
parent b26990987ffce0525abbd84b36595869cfdbbfe6
author David Matlack <dmatlack@google.com> 1620314683 +0000
committer Paolo Bonzini <pbonzini@redhat.com> 1620381982 -0400

kvm: Cap halt polling at kvm->max_halt_poll_ns

When growing halt-polling, there is no check that the poll time exceeds
the per-VM limit. It's possible for vcpu->halt_poll_ns to grow past
kvm->max_halt_poll_ns and stay there until a halt which takes longer
than kvm->halt_poll_ns.

Signed-off-by: David Matlack <dmatlack@google.com>
Signed-off-by: Venkatesh Srinivas <venkateshs@chromium.org>
Message-Id: <20210506152442.4010298-1-venkateshs@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>