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Groups > linux.kernel > #1195188 > unrolled thread
| Started by | Paolo Bonzini <pbonzini@redhat.com> |
|---|---|
| First post | 2015-07-29 15:40 +0200 |
| Last post | 2015-07-29 22:10 +0200 |
| Articles | 2 — 2 participants |
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[PATCH 0/2] KVM: x86: limit interactions between IOAPIC and LAPIC Paolo Bonzini <pbonzini@redhat.com> - 2015-07-29 15:40 +0200
Re: [PATCH 0/2] KVM: x86: limit interactions between IOAPIC and LAPIC Alex Williamson <alex.williamson@redhat.com> - 2015-07-29 22:10 +0200
| From | Paolo Bonzini <pbonzini@redhat.com> |
|---|---|
| Date | 2015-07-29 15:40 +0200 |
| Subject | [PATCH 0/2] KVM: x86: limit interactions between IOAPIC and LAPIC |
| Message-ID | <pRzKq-15P-21@gated-at.bofh.it> |
Inspired by the split irqchip patches, this series limits the IOAPIC<->LAPIC to the EOI exit bitmap that is inferred from the redirection table. TMR is entirely handled within the local APIC, and no global copy of the IOAPIC-handled vectors is necessary anymore. This makes it simpler to introduce a userspace IOAPIC. Tested with ioapic.flat for now, planning to do more complete tests tomorrow. The most interesting test to do here is an assigned device that uses INTX, so I am CCing Alex Williamson for a heads up. Paolo Paolo Bonzini (2): KVM: x86: set TMR when the interrupt is accepted KVM: x86: store IOAPIC-handled vectors in each VCPU arch/x86/include/asm/kvm_host.h | 3 ++- arch/x86/kvm/ioapic.c | 27 ++++----------------------- arch/x86/kvm/ioapic.h | 11 +---------- arch/x86/kvm/lapic.c | 29 ++++++++++++++++++----------- arch/x86/kvm/lapic.h | 1 - arch/x86/kvm/svm.c | 2 +- arch/x86/kvm/vmx.c | 3 ++- arch/x86/kvm/x86.c | 11 +++-------- 8 files changed, 31 insertions(+), 56 deletions(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | Alex Williamson <alex.williamson@redhat.com> |
|---|---|
| Date | 2015-07-29 22:10 +0200 |
| Subject | Re: [PATCH 0/2] KVM: x86: limit interactions between IOAPIC and LAPIC |
| Message-ID | <pRFPQ-1zd-9@gated-at.bofh.it> |
| In reply to | #1195188 |
On Wed, 2015-07-29 at 15:37 +0200, Paolo Bonzini wrote: > Inspired by the split irqchip patches, this series limits the > IOAPIC<->LAPIC to the EOI exit bitmap that is inferred from the > redirection table. > > TMR is entirely handled within the local APIC, and no global copy > of the IOAPIC-handled vectors is necessary anymore. This makes > it simpler to introduce a userspace IOAPIC. > > Tested with ioapic.flat for now, planning to do more complete tests > tomorrow. The most interesting test to do here is an assigned device > that uses INTX, so I am CCing Alex Williamson for a heads up. Tested Windows and Linux guests with assigned devices restricted to INTx mode, no obvious regression. Thanks, Alex > Paolo Bonzini (2): > KVM: x86: set TMR when the interrupt is accepted > KVM: x86: store IOAPIC-handled vectors in each VCPU > > arch/x86/include/asm/kvm_host.h | 3 ++- > arch/x86/kvm/ioapic.c | 27 ++++----------------------- > arch/x86/kvm/ioapic.h | 11 +---------- > arch/x86/kvm/lapic.c | 29 ++++++++++++++++++----------- > arch/x86/kvm/lapic.h | 1 - > arch/x86/kvm/svm.c | 2 +- > arch/x86/kvm/vmx.c | 3 ++- > arch/x86/kvm/x86.c | 11 +++-------- > 8 files changed, 31 insertions(+), 56 deletions(-) > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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