- 24 10月, 2010 1 次提交
-
-
由 Avi Kivity 提交于
The PIC code used to be called from preempt_disable() context, which wasn't very good for PREEMPT_RT. That is no longer the case, so move back from raw_spinlock_t to spinlock_t. Signed-off-by: NAvi Kivity <avi@redhat.com> Acked-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
-
- 09 9月, 2010 1 次提交
-
-
由 Gleb Natapov 提交于
Top of kvm_kpic_state structure should have the same memory layout as kvm_pic_state since it is copied by memcpy. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
-
- 01 8月, 2010 1 次提交
-
-
由 Avi Kivity 提交于
Part of the i8259 code pretends it isn't part of kvm, but we know better. Reduce excessive abstraction, eliminating callbacks and void pointers. Signed-off-by: NAvi Kivity <avi@redhat.com>
-
- 25 4月, 2010 1 次提交
-
-
由 Jan Kiszka 提交于
This restores the deferred VCPU kicking before 956f97cf. We need this over -rt as wake_up* requires non-atomic context in this configuration. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
-
- 01 3月, 2010 2 次提交
-
-
由 Thomas Gleixner 提交于
The i8254/i8259 locks need to be real spinlocks on preempt-rt. Convert them to raw_spinlock. No change for !RT kernels. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NAvi Kivity <avi@redhat.com>
-
由 Wei Yongjun 提交于
If we fail to init ioapic device or the fail to setup the default irq routing, the device register by kvm_create_pic() and kvm_ioapic_init() remain unregister. This patch fixed to do this. Signed-off-by: NWei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
-
- 03 12月, 2009 2 次提交
-
-
由 Marcelo Tosatti 提交于
Otherwise kvm will leak memory on multiple KVM_CREATE_IRQCHIP. Also serialize multiple accesses with kvm->lock. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
-
由 Gleb Natapov 提交于
This removes assumptions that max GSIs is smaller than number of pins. Sharing is tracked on pin level not GSI level. [avi: no PIC on ia64] Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
-
- 10 9月, 2009 1 次提交
-
-
由 Gleb Natapov 提交于
d5ecfdd25 moved it out because back than it was impossible to call it inside spinlock. This restriction no longer exists. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
-
- 24 3月, 2009 1 次提交
-
-
由 Marcelo Tosatti 提交于
IRQ ack notifications assume an identity mapping between pin->gsi, which might not be the case with, for example, HPET. Translate before acking. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Acked-by: NGleb Natapov <gleb@redhat.com>
-
- 15 2月, 2009 1 次提交
-
-
由 Marcelo Tosatti 提交于
Simplify LAPIC TMCCT calculation by using hrtimer provided function to query remaining time until expiration. Fixes host hang with nested ESX. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAlexander Graf <agraf@suse.de> Signed-off-by: NAvi Kivity <avi@redhat.com>
-
- 31 12月, 2008 3 次提交
-
-
由 Avi Kivity 提交于
While most accesses to the i8259 are with the kvm mutex taken, the call to kvm_pic_read_irq() is not. We can't easily take the kvm mutex there since the function is called with interrupts disabled. Fix by adding a spinlock to the virtual interrupt controller. Since we can't send an IPI under the spinlock (we also take the same spinlock in an irq disabled context), we defer the IPI until the spinlock is released. Similarly, we defer irq ack notifications until after spinlock release to avoid lock recursion. Signed-off-by: NAvi Kivity <avi@redhat.com>
-
由 Jan Kiszka 提交于
This patch refactors the NMI watchdog delivery patch, consolidating tests and providing a proper API for delivering watchdog events. An included micro-optimization is to check only for apic_hw_enabled in kvm_apic_local_deliver (the test for LVT mask is covering the soft-disabled case already). Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Acked-by: NSheng Yang <sheng@linux.intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
-
由 Jan Kiszka 提交于
LINT0 of the LAPIC can be used to route PIT events as NMI watchdog ticks into the guest. This patch aligns the in-kernel irqchip emulation with the user space irqchip with already supports this feature. The trick is to route PIT interrupts to all LAPIC's LVT0 lines. Rebased and slightly polished patch originally posted by Sheng Yang. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
-
- 15 10月, 2008 5 次提交
-
-
由 Xiantao Zhang 提交于
Moving irq ack notification logic as common, and make it shared with ia64 side. Signed-off-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Marcelo Tosatti 提交于
The PIC code makes little effort to avoid kvm_vcpu_kick(), resulting in unnecessary guest exits in some conditions. For example, if the timer interrupt is routed through the IOAPIC, IRR for IRQ 0 will get set but not cleared, since the APIC is handling the acks. This means that everytime an interrupt < 16 is triggered, the priority logic will find IRQ0 pending and send an IPI to vcpu0 (in case IRQ0 is not masked, which is Linux's case). Introduce a new variable isr_ack to represent the IRQ's for which the guest has been signalled / cleared the ISR. Use it to avoid more than one IPI per trigger-ack cycle, in addition to the avoidance when ISR is set in get_priority(). Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
-
由 Marcelo Tosatti 提交于
Based on a patch from: Ben-Ami Yassour <benami@il.ibm.com> which was based on a patch from: Amit Shah <amit.shah@qumranet.com> Notify IRQ acking on PIC/APIC emulation. The previous patch missed two things: - Edge triggered interrupts on IOAPIC - PIC reset with IRR/ISR set should be equivalent to ack (LAPIC probably needs something similar). Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> CC: Amit Shah <amit.shah@qumranet.com> CC: Ben-Ami Yassour <benami@il.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
This can be used by kvm subsystems that are interested in when interrupts are acked, for example time drift compensation. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Amit Shah 提交于
This function injects an interrupt into the guest given the kvm struct, the (guest) irq number and the interrupt level. Signed-off-by: NAmit Shah <amit.shah@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
- 20 7月, 2008 1 次提交
-
-
由 Ben-Ami Yassour 提交于
Check that an injected pic irq is between 0 and 15. Signed-off-by: NBen-Ami Yassour <benami@il.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
- 07 6月, 2008 1 次提交
-
-
由 Marcelo Tosatti 提交于
Migrate the PIT timer to the physical CPU which vcpu0 is scheduled on, similarly to what is done for the LAPIC timers, otherwise PIT interrupts will be delayed until an unrelated event causes an exit. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
- 27 4月, 2008 1 次提交
-
-
由 Marcelo Tosatti 提交于
Timers that fire between guest hlt and vcpu_block's add_wait_queue() are ignored, possibly resulting in hangs. Also make sure that atomic_inc and waitqueue_active tests happen in the specified order, otherwise the following race is open: CPU0 CPU1 if (waitqueue_active(wq)) add_wait_queue() if (!atomic_read(pit_timer->pending)) schedule() atomic_inc(pit_timer->pending) Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
- 31 1月, 2008 4 次提交
-
-
由 Avi Kivity 提交于
Migrating the apic timer in the critical section is not very nice, and is absolutely horrible with the real-time port. Move migration to the regular vcpu execution path, triggered by a new bitflag. Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Zhang Xiantao 提交于
Moving kvm_vcpu_kick() to x86.c. Since it should be common for all archs, put its declarations in <linux/kvm_host.h> Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Zhang Xiantao 提交于
This allows reuse of ioapic in ia64. Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
This paves the way for multiple architecture support. Note that while ioapic.c could potentially be shared with ia64, it is also moved. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
- 30 1月, 2008 10 次提交
-
-
由 Zhang Xiantao 提交于
This patches moves two fields vpid and vioapic to kvm_arch Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com> Acked-by: NCarsten Otte <cotte@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Zhang Xiantao 提交于
This patches moves kvm_vcpu definition to kvm.h, and finally kvm.h includes x86.h. Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com> Acked-by: NCarsten Otte <cotte@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Zhang Xiantao 提交于
Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Hollis Blanchard 提交于
Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Hollis Blanchard 提交于
Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com> Acked-by: NCarsten Otte <cotte@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Zhang Xiantao 提交于
Change dest_Loest_Prio -> IOAPIC_LOWEST_PRIORITY dest_Fixed -> IOAPIC_FIXED the original names are x86 specific, while the ioapic code will be reused for ia64. Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Zhang Xiantao 提交于
This patch replaces lapic structure with kvm_vcpu in ioapic.c, making ioapic independent of the local apic, as required by ia64. Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Eddie Dong 提交于
Signed-off-by: NYaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Eddie Dong 提交于
Signed-off-by: NYaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Rusty Russell 提交于
Instead of the asymetry of kvm_free_apic, implement kvm_free_lapic(). And guess what? I found a minor bug: we don't need to hrtimer_cancel() from kvm_main.c, because we do that in kvm_free_apic(). Also: 1) kvm_vcpu_uninit should be the reverse order from kvm_vcpu_init. 2) Don't set apic->regs_page to zero before freeing apic. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
- 13 10月, 2007 4 次提交
-
-
由 He, Qing 提交于
This patch enables INIT/SIPI handling using in-kernel APIC by introducing a ->mp_state field to emulate the SMP state transition. [avi: remove smp_processor_id() warning] Signed-off-by: NQing He <qing.he@intel.com> Signed-off-by: NXin Li <xin.b.li@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Qing He 提交于
This patch changes the PIC interrupts delivery. Now it is only delivered to vcpu0 when either condition is met (on vcpu0): 1. local APIC is hardware disabled 2. LVT0 is unmasked and configured to delivery mode ExtInt It fixes the 2x faster wall clock on x86_64 and SMP i386 Linux guests Signed-off-by: NEddie (Yaozu) Dong <eddie.dong@intel.com> Signed-off-by: NQing He <qing.he@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Eddie Dong 提交于
This reduces overhead by accessing cachelines from the wrong node, as well as simplifying locking. [Qing: fix for inactive or expired one-shot timer] Signed-off-by: NYaozu (Eddie) Dong <Eddie.Dong@intel.com> Signed-off-by: NQing He <qing.he@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Eddie Dong 提交于
APIC timer IRQ is set every time when a certain period expires at host time, but the guest may be descheduled at that time and thus the irq be overwritten by later fire. This patch keep track of firing irq numbers and decrease only when the IRQ is injected to guest or buffered in APIC. Signed-off-by: NYaozu (Eddie) Dong <Eddie.Dong@intel.com> Signed-off-by: NQing He <qing.he@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-