linux-kernel - Re: [PATCH v3] x86: svm: use kvm_fast_pio

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Date:	Tue, 3 Mar 2015 21:44:46 +0100
From:	Radim Krčmář <rkrcmar@...hat.com>
To:	Joel Schopp <joel.schopp@....com>
Cc:	Gleb Natapov <gleb@...nel.org>,
	Paolo Bonzini <pbonzini@...hat.com>, kvm@...r.kernel.org,
	David Kaplan <David.Kaplan@....com>,
	Joerg Roedel <joro@...tes.org>, linux-kernel@...r.kernel.org,
	Borislav Petkov <bp@...en8.de>
Subject: Re: [PATCH v3] x86: svm: use kvm_fast_pio_in()

2015-03-03 14:03-0600, Joel Schopp:
> On 03/03/2015 10:44 AM, Radim Krčmář wrote:
> > 2015-03-02 15:02-0600, Joel Schopp:
> >> +	int ret = emulator_pio_in_emulated(&vcpu->arch.emulate_ctxt, size,
> >> +					   port, &val, 1);
> > Btw. does this return 1 in some scenario?
> If a function returns a value it is always a good idea to check it and
> act appropriately.  That said...
> emulator_pio_in_emulated will return 1 if emulator_pio_in_out returns 1

Ah, I have completely forgotten, thanks!
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