Revision tags: v2.6.29-rc6, v2.6.29-rc5, v2.6.29-rc4, v2.6.29-rc3, v2.6.29-rc2, v2.6.29-rc1 |
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4780c659 |
| 04-Jan-2009 |
Avi Kivity <avi@redhat.com> |
KVM: Reset PIT irq injection logic when the PIT IRQ is unmasked While the PIT is masked the guest cannot ack the irq, so the reinject logic will never allow the interrupt to be injected.
KVM: Reset PIT irq injection logic when the PIT IRQ is unmasked While the PIT is masked the guest cannot ack the irq, so the reinject logic will never allow the interrupt to be injected. Fix by resetting the reinjection counters on unmask. Unbreaks Xen. Signed-off-by: Avi Kivity <avi@redhat.com>
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52d939a0 |
| 30-Dec-2008 |
Marcelo Tosatti <mtosatti@redhat.com> |
KVM: PIT: provide an option to disable interrupt reinjection Certain clocks (such as TSC) in older 2.6 guests overaccount for lost ticks, causing severe time drift. Interrupt reinjection
KVM: PIT: provide an option to disable interrupt reinjection Certain clocks (such as TSC) in older 2.6 guests overaccount for lost ticks, causing severe time drift. Interrupt reinjection magnifies the problem. Provide an option to disable it. [avi: allow room for expansion in case we want to disable reinjection of other timers] Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
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Revision tags: v2.6.28, v2.6.28-rc9, v2.6.28-rc8, v2.6.28-rc7, v2.6.28-rc6, v2.6.28-rc5, v2.6.28-rc4, v2.6.28-rc3, v2.6.28-rc2, v2.6.28-rc1 |
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5550af4d |
| 15-Oct-2008 |
Sheng Yang <sheng@linux.intel.com> |
KVM: Fix guest shared interrupt with in-kernel irqchip Every call of kvm_set_irq() should offer an irq_source_id, which is allocated by kvm_request_irq_source_id(). Based on irq_source_i
KVM: Fix guest shared interrupt with in-kernel irqchip Every call of kvm_set_irq() should offer an irq_source_id, which is allocated by kvm_request_irq_source_id(). Based on irq_source_id, we identify the irq source and implement logical OR for shared level interrupts. The allocated irq_source_id can be freed by kvm_free_irq_source_id(). Currently, we support at most sizeof(unsigned long) different irq sources. [Amit: - rebase to kvm.git HEAD - move definition of KVM_USERSPACE_IRQ_SOURCE_ID to common file - move kvm_request_irq_source_id to the update_irq ioctl] [Xiantao: - Add kvm/ia64 stuff and make it work for kvm/ia64 guests] Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
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Revision tags: v2.6.27, v2.6.27-rc9, v2.6.27-rc8, v2.6.27-rc7, v2.6.27-rc6, v2.6.27-rc5, v2.6.27-rc4, v2.6.27-rc3, v2.6.27-rc2, v2.6.27-rc1 |
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3cf57fed |
| 26-Jul-2008 |
Marcelo Tosatti <mtosatti@redhat.com> |
KVM: PIT: fix injection logic and count The PIT injection logic is problematic under the following cases: 1) If there is a higher priority vector to be delivered by the time kvm
KVM: PIT: fix injection logic and count The PIT injection logic is problematic under the following cases: 1) If there is a higher priority vector to be delivered by the time kvm_pit_timer_intr_post is invoked ps->inject_pending won't be set. This opens the possibility for missing many PIT event injections (say if guest executes hlt at this point). 2) ps->inject_pending is racy with more than two vcpus. Since there's no locking around read/dec of pt->pending, two vcpu's can inject two interrupts for a single pt->pending count. Fix 1 by using an irq ack notifier: only reinject when the previous irq has been acked. Fix 2 with appropriate locking around manipulation of pending count and irq_ack by the injection / ack paths. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
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Revision tags: v2.6.26, v2.6.26-rc9, v2.6.26-rc8, v2.6.26-rc7, v2.6.26-rc6, v2.6.26-rc5, v2.6.26-rc4, v2.6.26-rc3, v2.6.26-rc2, v2.6.26-rc1, v2.6.25, v2.6.25-rc9, v2.6.25-rc8, v2.6.25-rc7, v2.6.25-rc6 |
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308b0f23 |
| 12-Mar-2008 |
Sheng Yang <sheng.yang@intel.com> |
KVM: Add reset support for in kernel PIT Separate the reset part and prepare for reset support. Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@q
KVM: Add reset support for in kernel PIT Separate the reset part and prepare for reset support. Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
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Revision tags: v2.6.25-rc5, v2.6.25-rc4 |
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e0f63cb9 |
| 03-Mar-2008 |
Sheng Yang <sheng.yang@intel.com> |
KVM: Add save/restore supporting of in kernel PIT Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
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Revision tags: v2.6.25-rc3, v2.6.25-rc2, v2.6.25-rc1 |
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7837699f |
| 27-Jan-2008 |
Sheng Yang <sheng.yang@intel.com> |
KVM: In kernel PIT model The patch moves the PIT model from userspace to kernel, and increases the timer accuracy greatly. [marcelo: make last_injected_time per-guest]
KVM: In kernel PIT model The patch moves the PIT model from userspace to kernel, and increases the timer accuracy greatly. [marcelo: make last_injected_time per-guest] Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Tested-and-Acked-by: Alex Davis <alex14641@yahoo.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
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