{"id":2225175,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2225175/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260420140552.104369-4-eric.auger@redhat.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.1/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260420140552.104369-4-eric.auger@redhat.com>","date":"2026-04-20T14:03:53","name":"[v10,3/7] target/arm/machine: Handle ToleranceOnlySrcTestValue migration tolerance","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"4db60d6076ec161f3d0499d0f2248588eae9597e","submitter":{"id":69187,"url":"http://patchwork.ozlabs.org/api/1.1/people/69187/?format=json","name":"Eric Auger","email":"eric.auger@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260420140552.104369-4-eric.auger@redhat.com/mbox/","series":[{"id":500612,"url":"http://patchwork.ozlabs.org/api/1.1/series/500612/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500612","date":"2026-04-20T14:03:52","name":"[v10,1/7] target/arm/cpu: Introduce the infrastructure for cpreg migration tolerances","version":10,"mbox":"http://patchwork.ozlabs.org/series/500612/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2225175/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2225175/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=W4p5lg7N;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1776693982;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=0EM1XmILPw6VzQiNknH3uHKB72whXoHpWgRXJ1BwNEY=;\n b=W4p5lg7NuSecCjR+iHS4qobY7ysCJZaLuhei9XNSEMJunOwqcAS6mTgCPYsvz1/d1L1Lnc\n U7mh5/a4cesoYRQZBtctrWkW8/ufhTvcxmHbal1wTdurZg4moHBWBNTjozCywAghrpwCuZ\n xAWdFm/z1WNLGYH5sDCWeOUo4KAbUzY=","X-MC-Unique":"3eLOvclhPVu2KyZ8aRGTYg-1","X-Mimecast-MFC-AGG-ID":"3eLOvclhPVu2KyZ8aRGTYg_1776693973","From":"Eric Auger ","To":"eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org,\n qemu-arm@nongnu.org, peter.maydell@linaro.org, cohuck@redhat.com,\n sebott@redhat.com, peterx@redhat.com, philmd@linaro.org,\n alex.bennee@linaro.org","Subject":"[PATCH v10 3/7] target/arm/machine: Handle ToleranceOnlySrcTestValue\n migration tolerance","Date":"Mon, 20 Apr 2026 16:03:53 +0200","Message-ID":"<20260420140552.104369-4-eric.auger@redhat.com>","In-Reply-To":"<20260420140552.104369-1-eric.auger@redhat.com>","References":"<20260420140552.104369-1-eric.auger@redhat.com>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-Scanned-By":"MIMEDefang 3.4.1 on 10.30.177.93","Received-SPF":"pass client-ip=170.10.129.124;\n envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com","X-Spam_score_int":"-20","X-Spam_score":"-2.1","X-Spam_bar":"--","X-Spam_report":"(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no","X-Spam_action":"no action","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"Pass the value of the incoming register to\nhandle_cpreg_only_in_incoming_stream and check whether there is\na matching ToleranceOnlySrcTestValue tolerance.\n\nSigned-off-by: Eric Auger \n---\n target/arm/machine.c | 14 ++++++++++----\n 1 file changed, 10 insertions(+), 4 deletions(-)","diff":"diff --git a/target/arm/machine.c b/target/arm/machine.c\nindex 8a698f601c6..35f1e4327f8 100644\n--- a/target/arm/machine.c\n+++ b/target/arm/machine.c\n@@ -1081,12 +1081,15 @@ static void handle_cpreg_missing_in_incoming_stream(ARMCPU *cpu, uint64_t kvmidx\n * no cpreg mig tolerance is matched for this @kvmidx\n * Return true if the migration should eventually fail\n */\n-static bool handle_cpreg_only_in_incoming_stream(ARMCPU *cpu, uint64_t kvmidx)\n+static bool\n+handle_cpreg_only_in_incoming_stream(ARMCPU *cpu, uint64_t kvmidx, uint64_t value)\n {\n g_autofree gchar *name = print_register_name(kvmidx);\n \n if (arm_cpu_match_cpreg_mig_tolerance(cpu, kvmidx,\n- 0, 0, ToleranceNotOnBothEnds)) {\n+ 0, 0, ToleranceNotOnBothEnds) ||\n+ arm_cpu_match_cpreg_mig_tolerance(cpu, kvmidx,\n+ value, 0, ToleranceOnlySrcTestValue)) {\n trace_tolerate_cpreg_only_in_incoming_stream(name);\n return false;\n }\n@@ -1139,7 +1142,9 @@ static int cpu_post_load(void *opaque, int version_id)\n }\n if (cpu->cpreg_vmstate_indexes[v] < cpu->cpreg_indexes[i]) {\n fail = handle_cpreg_only_in_incoming_stream(cpu,\n- cpu->cpreg_vmstate_indexes[v++]);\n+ cpu->cpreg_vmstate_indexes[v],\n+ cpu->cpreg_vmstate_values[v]);\n+ v++;\n continue;\n }\n /* matching register, copy the value over */\n@@ -1162,7 +1167,8 @@ static int cpu_post_load(void *opaque, int version_id)\n */\n for ( ; v < cpu->cpreg_vmstate_array_len; v++) {\n fail = handle_cpreg_only_in_incoming_stream(cpu,\n- cpu->cpreg_vmstate_indexes[v]);\n+ cpu->cpreg_vmstate_indexes[v],\n+ cpu->cpreg_vmstate_values[v]);\n }\n if (fail) {\n return -1;\n","prefixes":["v10","3/7"]}