From: Wincy Van <fanwenyi0529@gmail.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Jim Mattson <jmattson@google.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [PATCH 0/2] KVM: nVMX: Fix nested posted interrupts delivery
Date: Tue, 25 Jul 2017 09:25:56 +0800 [thread overview]
Message-ID: <CACzj_yVbLSp3hvjWJ_EjouzCSr1L9XFKPhEkWqfPOpn=_nVSww@mail.gmail.com> (raw)
In-Reply-To: <4299a76f-5740-aa04-a893-d4f643c37320@redhat.com>
On Tue, Jul 25, 2017 at 1:08 AM, Paolo Bonzini <pbonzini@redhat.com> wrote:
> On 28/04/2017 07:13, fanwenyi0529@gmail.com wrote:
>> From: Wincy Van <fanwenyi0529@gmail.com>
>>
>> The nested/non-nested PI vector is the same currently, this is wrong
>> since the non-nested PI may not be recognized if dest vcpu is in L2.
>>
>> This patch series introduce a new vector for nested PI to solve the
>> problem.
>>
>> Wincy Van (2):
>> x86: irq: Define a global vector for nested posted interrupts
>> KVM: nVMX: Fix posted intr delivery when vcpu is in guest mode
>>
>> arch/x86/entry/entry_64.S | 1 +
>> arch/x86/include/asm/entry_arch.h | 2 ++
>> arch/x86/include/asm/hardirq.h | 1 +
>> arch/x86/include/asm/hw_irq.h | 2 ++
>> arch/x86/include/asm/irq_vectors.h | 1 +
>> arch/x86/kernel/irq.c | 13 +++++++++++++
>> arch/x86/kernel/irqinit.c | 2 ++
>> arch/x86/kvm/vmx.c | 22 +++++++++++-----------
>> 8 files changed, 33 insertions(+), 11 deletions(-)
>>
>
> Belatedly applying this, with this change:
>
> diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
> index e3d4718faa95..6b85958ea2ec 100644
> --- a/arch/x86/kernel/irq.c
> +++ b/arch/x86/kernel/irq.c
> @@ -155,6 +155,12 @@ int arch_show_interrupts(struct seq_file *p, int prec)
> seq_printf(p, "%10u ", irq_stats(j)->kvm_posted_intr_ipis);
> seq_puts(p, " Posted-interrupt notification event\n");
>
> + seq_printf(p, "%*s: ", prec, "NPI");
> + for_each_online_cpu(j)
> + seq_printf(p, "%10u ",
> + irq_stats(j)->kvm_posted_intr_nested_ipis);
> + seq_puts(p, " Nested posted-interrupt wakeup event\n");
> +
> seq_printf(p, "%*s: ", prec, "PIW");
> for_each_online_cpu(j)
> seq_printf(p, "%10u ",
>
> on top of patch 1.
>
It's nice, thank you :)
Wincy
prev parent reply other threads:[~2017-07-25 1:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-28 5:13 [PATCH 0/2] KVM: nVMX: Fix nested posted interrupts delivery fanwenyi0529
2017-04-28 5:13 ` [PATCH 1/2] x86: irq: Define a global vector for nested posted interrupts fanwenyi0529
2017-04-28 10:16 ` Paolo Bonzini
2017-05-16 14:55 ` Paolo Bonzini
2017-04-28 5:13 ` [PATCH 2/2] KVM: nVMX: Fix posted intr delivery when vcpu is in guest mode fanwenyi0529
2017-07-24 17:08 ` [PATCH 0/2] KVM: nVMX: Fix nested posted interrupts delivery Paolo Bonzini
2017-07-25 1:25 ` Wincy Van [this message]
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