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path: root/arch/x86/kvm/timer.c
AgeCommit message (Collapse)Author
2011-03-18x86: Fix common misspellingsLucas De Marchi
They were generated by 'codespell' and then manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi> Cc: trivial@kernel.org LKML-Reference: <1300389856-1099-3-git-send-email-lucas.demarchi@profusion.mobi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-10-24KVM: fix typo in copyright noticeNicolas Kaiser
Fix typo in copyright notice. Signed-off-by: Nicolas Kaiser <nikai@nikai.net> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-08-01KVM: Add mini-API for vcpu->requestsAvi Kivity
Makes it a little more readable and hackable. Signed-off-by: Avi Kivity <avi@redhat.com>
2010-08-01KVM: Update Red Hat copyrightsAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-05-17KVM: x86: document KVM_REQ_PENDING_TIMER usageMarcelo Tosatti
Document that KVM_REQ_PENDING_TIMER is implicitly used during guest entry. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-09-10KVM: Drop useless atomic test from timer functionJan Kiszka
The current code tries to optimize the setting of KVM_REQ_PENDING_TIMER but used atomic_inc_and_test - which always returns true unless pending had the invalid value of -1 on entry. This patch drops the test part preserving the original semantic but expressing it less confusingly. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-09-10KVM: Fix racy event propagation in timerJan Kiszka
Minor issue that likely had no practical relevance: the kvm timer function so far incremented the pending counter and then may reset it again to 1 in case reinjection was disabled. This opened a small racy window with the corresponding VCPU loop that may have happened to run on another (real) CPU and already consumed the value. Fix it by skipping the incrementation in case pending is already > 0. This opens a different race windows, but may only rarely cause lost events in case we do not care about them anyway (!reinject). Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-09-10KVM: Use pointer to vcpu instead of vcpu_id in timer code.Gleb Natapov
Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10KVM: unify part of generic timer handlingMarcelo Tosatti
Hide the internals of vcpu awakening / injection from the in-kernel emulated timers. This makes future changes in this logic easier and decreases the distance to more generic timer handling. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>