From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4F8C5C34056 for ; Wed, 19 Feb 2020 20:49:22 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 19A7D207FD for ; Wed, 19 Feb 2020 20:49:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="h0Mh8Q3D" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 19A7D207FD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1j4WHD-0003BR-N6; Wed, 19 Feb 2020 20:48:59 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1j4WHB-0003BM-WA for xen-devel@lists.xenproject.org; Wed, 19 Feb 2020 20:48:58 +0000 X-Inumbo-ID: 3f82d980-5359-11ea-aa99-bc764e2007e4 Received: from us-smtp-delivery-1.mimecast.com (unknown [207.211.31.120]) by us1-rack-iad1.inumbo.com (Halon) with ESMTP id 3f82d980-5359-11ea-aa99-bc764e2007e4; Wed, 19 Feb 2020 20:48:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1582145337; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oCbBkvQFTAuFW033ur9ejLImFbYe/zfXviaYTrwULKI=; b=h0Mh8Q3DlRMKj63H6Bl8md5XAcm7ZA/F/cwA/hnijqF5FoxyroKwTP4zRAnnFslMzXg4ri NiaeEL/4HnULj0mSJDuu4DYnWcMHE9ZOsupty64ygTC9IlG/T9iBRhoQF3K8xXmNBNCMLU utROy0ssa86vRSmMUUlmZm1OdFgCG30= Received: from mail-qk1-f198.google.com (mail-qk1-f198.google.com [209.85.222.198]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-29--5l3esV0MC-g4BQYRqZ-lA-1; Wed, 19 Feb 2020 15:48:52 -0500 X-MC-Unique: -5l3esV0MC-g4BQYRqZ-lA-1 Received: by mail-qk1-f198.google.com with SMTP id i11so1150389qki.12 for ; Wed, 19 Feb 2020 12:48:52 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=4heDx3IADhxIaA05zIzt6Oj44HcZ6fmRDFRSIivC0yI=; b=BnzOVUkO6dIvKlyWuN9jVsECNJ8aG55FL3m4Anv+4OFWg0b3Uhbfws80BdojXSoAAl P4y1tsE8g76p+Scb9lVTQRqMy0As5+sMEMvWekNyiv3AQ6oht6Zus5UD/tySo1BrO2ZA dnF/XiDrLl9zWbQ67A72cg9g4gtn9pZvdZAF1KwpJzyesVfjjQJero4IBa1wbpKkEGHM l6+CbX8pCl1B372Wz5INGMcK1CKIDxrbXqpIuHyrwBBiu0fqg4g8iMg+ONSUNS50bWYV uxKolEbpgoOD8P1l5b5pSlyIRe2J7w8hF5Rv70tjWSKxlFPxtLGoAI2dv3pXXdD8RgRo AjCg== X-Gm-Message-State: APjAAAWwT3OjPMGtIFrTINPRihO8CJ7tBeZ/dOcPDg5XAHNsVRmoaaiy qkXDhcK71VquLKdkO3qdNV3AZmtBd9+kl53T3ZefdbE+so3ijswTgyDS42B0JtbGrwDJxe1fxhA Ee6rYsy/CjpHPyBBHTqfIC6aHi8Q= X-Received: by 2002:ac8:104:: with SMTP id e4mr23413685qtg.37.1582145332479; Wed, 19 Feb 2020 12:48:52 -0800 (PST) X-Google-Smtp-Source: APXvYqw9qXw94Rkjkq4drpJmapyH6qExoqCgQYbQHS/kJUb5VULS9U4dUz6XTa9hpEbqxiNLeJVBNw== X-Received: by 2002:ac8:104:: with SMTP id e4mr23413671qtg.37.1582145332268; Wed, 19 Feb 2020 12:48:52 -0800 (PST) Received: from xz-x1 ([104.156.64.75]) by smtp.gmail.com with ESMTPSA id j127sm459417qkc.36.2020.02.19.12.48.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Feb 2020 12:48:51 -0800 (PST) Date: Wed, 19 Feb 2020 15:48:50 -0500 From: Peter Xu To: David Hildenbrand Message-ID: <20200219204850.GE37550@xz-x1> References: <20200219161725.115218-1-david@redhat.com> <20200219161725.115218-4-david@redhat.com> MIME-Version: 1.0 In-Reply-To: <20200219161725.115218-4-david@redhat.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Subject: Re: [Xen-devel] [PATCH v1 03/13] numa: Teach ram block notifiers about resizeable ram blocks X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Stefano Stabellini , Eduardo Habkost , Juan Quintela , Paul Durrant , qemu-devel@nongnu.org, "Dr . David Alan Gilbert" , Igor Mammedov , "Michael S. Tsirkin" , Marcel Apfelbaum , xen-devel@lists.xenproject.org, Anthony Perard , Paolo Bonzini , Richard Henderson Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gV2VkLCBGZWIgMTksIDIwMjAgYXQgMDU6MTc6MTVQTSArMDEwMCwgRGF2aWQgSGlsZGVuYnJh bmQgd3JvdGU6Cj4gUmFtIGJsb2NrIG5vdGlmaWVycyBhcmUgY3VycmVudGx5IG5vdCBhd2FyZSBv ZiByZXNpemVzLiBFc3BlY2lhbGx5IHRvCj4gaGFuZGxlIHJlc2l6ZXMgZHVyaW5nIG1pZ3JhdGlv biwgYnV0IGFsc28gdG8gaW1wbGVtZW50IGFjdHVhbGx5IHJlc2l6ZWFibGUKPiByYW0gYmxvY2tz IChtYWtlIGV2ZXJ5dGhpbmcgYmV0d2VlbiB1c2VkX2xlbmd0aCBhbmQgbWF4X2xlbmd0aAo+IGlu YWNjZXNzaWJsZSksIHdlIHdhbnQgdG8gdGVhY2ggcmFtIGJsb2NrIG5vdGlmaWVycyBhYm91dCBy ZXNpemVhYmxlCj4gcmFtLgo+IAo+IEludHJvZHVjZSB0aGUgYmFzaWMgaW5mcmFzdHJ1Y3R1cmUg YnV0IGtlZXAgdXNpbmcgbWF4X3NpemUgaW4gdGhlCj4gZXhpc3Rpbmcgbm90aWZpZXJzLiBTdXBw bHkgdGhlIG1heF9zaXplIHdoZW4gYWRkaW5nIGFuZCByZW1vdmluZyByYW0KPiBibG9ja3MuIEFs c28sIG5vdGlmeSBvbiByZXNpemVzLgo+IAo+IEFja2VkLWJ5OiBQYXVsIER1cnJhbnQgPHBhdWxA eGVuLm9yZz4KPiBDYzogUmljaGFyZCBIZW5kZXJzb24gPHJ0aEB0d2lkZGxlLm5ldD4KPiBDYzog UGFvbG8gQm9uemluaSA8cGJvbnppbmlAcmVkaGF0LmNvbT4KPiBDYzogIkRyLiBEYXZpZCBBbGFu IEdpbGJlcnQiIDxkZ2lsYmVydEByZWRoYXQuY29tPgo+IENjOiBFZHVhcmRvIEhhYmtvc3QgPGVo YWJrb3N0QHJlZGhhdC5jb20+Cj4gQ2M6IE1hcmNlbCBBcGZlbGJhdW0gPG1hcmNlbC5hcGZlbGJh dW1AZ21haWwuY29tPgo+IENjOiBTdGVmYW5vIFN0YWJlbGxpbmkgPHNzdGFiZWxsaW5pQGtlcm5l bC5vcmc+Cj4gQ2M6IEFudGhvbnkgUGVyYXJkIDxhbnRob255LnBlcmFyZEBjaXRyaXguY29tPgo+ IENjOiBQYXVsIER1cnJhbnQgPHBhdWxAeGVuLm9yZz4KPiBDYzogIk1pY2hhZWwgUy4gVHNpcmtp biIgPG1zdEByZWRoYXQuY29tPgo+IENjOiB4ZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcK PiBDYzogSWdvciBNYW1tZWRvdiA8aW1hbW1lZG9AcmVkaGF0LmNvbT4KPiBTaWduZWQtb2ZmLWJ5 OiBEYXZpZCBIaWxkZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT4KClJldmlld2VkLWJ5OiBQZXRl ciBYdSA8cGV0ZXJ4QHJlZGhhdC5jb20+CgotLSAKUGV0ZXIgWHUKCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhl bi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3Jn L21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC16DC18E00 for ; 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Wed, 19 Feb 2020 12:48:52 -0800 (PST) Received: from xz-x1 ([104.156.64.75]) by smtp.gmail.com with ESMTPSA id j127sm459417qkc.36.2020.02.19.12.48.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Feb 2020 12:48:51 -0800 (PST) Date: Wed, 19 Feb 2020 15:48:50 -0500 From: Peter Xu To: David Hildenbrand Subject: Re: [PATCH v1 03/13] numa: Teach ram block notifiers about resizeable ram blocks Message-ID: <20200219204850.GE37550@xz-x1> References: <20200219161725.115218-1-david@redhat.com> <20200219161725.115218-4-david@redhat.com> MIME-Version: 1.0 In-Reply-To: <20200219161725.115218-4-david@redhat.com> X-MC-Unique: Jx0P2XkxNxCGkRhn5VQwKg-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stefano Stabellini , Eduardo Habkost , Juan Quintela , Paul Durrant , qemu-devel@nongnu.org, "Dr . David Alan Gilbert" , Igor Mammedov , "Michael S. Tsirkin" , xen-devel@lists.xenproject.org, Anthony Perard , Paolo Bonzini , Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Wed, Feb 19, 2020 at 05:17:15PM +0100, David Hildenbrand wrote: > Ram block notifiers are currently not aware of resizes. Especially to > handle resizes during migration, but also to implement actually resizeabl= e > ram blocks (make everything between used_length and max_length > inaccessible), we want to teach ram block notifiers about resizeable > ram. >=20 > Introduce the basic infrastructure but keep using max_size in the > existing notifiers. Supply the max_size when adding and removing ram > blocks. Also, notify on resizes. >=20 > Acked-by: Paul Durrant > Cc: Richard Henderson > Cc: Paolo Bonzini > Cc: "Dr. David Alan Gilbert" > Cc: Eduardo Habkost > Cc: Marcel Apfelbaum > Cc: Stefano Stabellini > Cc: Anthony Perard > Cc: Paul Durrant > Cc: "Michael S. Tsirkin" > Cc: xen-devel@lists.xenproject.org > Cc: Igor Mammedov > Signed-off-by: David Hildenbrand Reviewed-by: Peter Xu --=20 Peter Xu