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From: Marcelo Tosatti <mtosatti@redhat.com>
To: Gleb Natapov <gleb@redhat.com>
Cc: Yang Zhang <yang.z.zhang@intel.com>,
	kvm@vger.kernel.org, haitao.shan@intel.com,
	xiantao.zhang@intel.com, Kevin Tian <kevin.tian@intel.com>
Subject: Re: [PATCH v11 3/3] x86, apicv: add virtual interrupt delivery support
Date: Mon, 21 Jan 2013 19:54:48 -0200	[thread overview]
Message-ID: <20130121215448.GD10985@amt.cnet> (raw)
In-Reply-To: <20130121211828.GG25818@redhat.com>

On Mon, Jan 21, 2013 at 11:18:28PM +0200, Gleb Natapov wrote:
> On Mon, Jan 21, 2013 at 07:05:43PM -0200, Marcelo Tosatti wrote:
> > > +	struct vcpu_vmx *vmx = to_vmx(vcpu);
> > > +
> > > +	if (WARN_ONCE((vector > 255),
> > > +		"KVM VMX: vector (%d) out of range\n", vector))
> > > +		return;
> > 
> > Please remove the WARN_ON, inject triple fault if this happens
> > (and add a tracepoint).
> > 
> Since this cannot be triggered by a guest triple fault is unwarranted.
> Vector can be greater than 255 here only due to KVM bug, so WARN() or
> even BUG() is appropriate.

Then BUG_ON().


  reply	other threads:[~2013-01-22  2:36 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-16 10:21 [PATCH v11 0/3] x86, apicv: Add APIC virtualization support Yang Zhang
2013-01-16 10:21 ` [PATCH v11 1/3] x86, apicv: add APICv register " Yang Zhang
2013-01-16 10:21 ` [PATCH v11 2/3] x86, apicv: add virtual x2apic support Yang Zhang
2013-01-17 13:22   ` Gleb Natapov
2013-01-18  1:49     ` Zhang, Yang Z
2013-01-21 19:59   ` Marcelo Tosatti
2013-01-21 20:21     ` Gleb Natapov
2013-01-21 21:21       ` Marcelo Tosatti
2013-01-21 21:34         ` Gleb Natapov
2013-01-21 22:16           ` Marcelo Tosatti
2013-01-22  0:33             ` Marcelo Tosatti
2013-01-22  3:37               ` Zhang, Yang Z
2013-01-22  9:45               ` Gleb Natapov
2013-01-22  9:42             ` Gleb Natapov
2013-01-22 12:21     ` Zhang, Yang Z
2013-01-22 15:55       ` Gleb Natapov
2013-01-22 23:13         ` Marcelo Tosatti
2013-01-23  0:35           ` Zhang, Yang Z
2013-01-23 10:29           ` Gleb Natapov
2013-01-16 10:21 ` [PATCH v11 3/3] x86, apicv: add virtual interrupt delivery support Yang Zhang
2013-01-17  1:26   ` Zhang, Yang Z
2013-01-20 12:51     ` Gleb Natapov
2013-01-21  0:49       ` Zhang, Yang Z
2013-01-21  5:03         ` Gleb Natapov
2013-01-21  7:18           ` Zhang, Yang Z
2013-01-21 21:08           ` Marcelo Tosatti
2013-01-23  0:45           ` Zhang, Yang Z
2013-01-23 10:33             ` Gleb Natapov
2013-01-23 10:52               ` Zhang, Yang Z
2013-01-21 21:05   ` Marcelo Tosatti
2013-01-21 21:18     ` Gleb Natapov
2013-01-21 21:54       ` Marcelo Tosatti [this message]
2013-01-22  3:38         ` Zhang, Yang Z
2013-01-16 10:27 ` [PATCH v11 0/3] x86, apicv: Add APIC virtualization support Gleb Natapov

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