From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH v3 04/12] Add "handle page fault" PV helper. Date: Thu, 21 Jan 2010 11:05:46 +0200 Message-ID: <4B5818EA.10709@redhat.com> References: <4B541D08.9040802@zytor.com> <20100118085022.GA30698@redhat.com> <4B5510B1.9010202@zytor.com> <20100119065537.GF14345@redhat.com> <4B55E5D8.1070402@zytor.com> <20100119174438.GA19450@redhat.com> <4B5611A9.4050301@zytor.com> <20100120100254.GC5238@redhat.com> <4B5740CD.4020005@zytor.com> <4B58181B.60405@redhat.com> <20100121090421.GS5238@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: "H. Peter Anvin" , Peter Zijlstra , kvm@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, mingo@elte.hu, tglx@linutronix.de, riel@redhat.com, cl@linux-foundation.org To: Gleb Natapov Return-path: In-Reply-To: <20100121090421.GS5238@redhat.com> Sender: owner-linux-mm@kvack.org List-Id: kvm.vger.kernel.org On 01/21/2010 11:04 AM, Gleb Natapov wrote: > >> Do you mean create the stack frame manually? I'd really like to >> avoid that for many reasons, one of which is performance (need to do >> all the virt-to-phys walks manually), the other is that we're >> certain to end up with something horribly underspecified. I'd >> really like to keep as close as possible to the hardware. For the >> alternative approach, see Xen. >> >> > That and our event injection path can't play with guest memory right now > since it is done from atomic context. > That's true (I'd like to fix that though, for the real mode stuff). -- error compiling committee.c: too many arguments to function -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org