linux-kernel - Re: [PATCH v4 2/4] KVM: x86: Use vector-hashing to deliver lowest-priority interrupts

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Message-ID: <20160126185909.GE21252@potion.brq.redhat.com>
Date:	Tue, 26 Jan 2016 19:59:10 +0100
From:	Radim Krčmář <rkrcmar@...hat.com>
To:	Feng Wu <feng.wu@...el.com>
Cc:	pbonzini@...hat.com, linux-kernel@...r.kernel.org,
	kvm@...r.kernel.org
Subject: Re: [PATCH v4 2/4] KVM: x86: Use vector-hashing to deliver
 lowest-priority interrupts

2016-01-25 16:53+0800, Feng Wu:
> Use vector-hashing to deliver lowest-priority interrupts, As an
> example, modern Intel CPUs in server platform use this method to
> handle lowest-priority interrupts.
> 
> Signed-off-by: Feng Wu <feng.wu@...el.com>
> ---

With any proposed resolution of BUG_ON in kvm_vector_to_index,

Reviewed-by: Radim Krčmář <rkrcmar@...hat.com>

> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> @@ -123,6 +123,9 @@ module_param(tsc_tolerance_ppm, uint, S_IRUGO | S_IWUSR);
> +bool __read_mostly vector_hashing = true;

(Module param can be static.)

> +module_param(vector_hashing, bool, S_IRUGO);