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[209.51.188.17]) by mx.google.com with ESMTPS id d15si10299800qtr.301.2019.11.12.05.02.24 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 12 Nov 2019 05:02:24 -0800 (PST) Received-SPF: pass (google.com: domain of qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=fail header.i=@redhat.com header.s=mimecast20190719 header.b=UMQtAL52; spf=pass (google.com: domain of qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: from localhost ([::1]:34800 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iUVoO-0002jC-7T for alex.bennee@linaro.org; Tue, 12 Nov 2019 08:02:24 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:46841) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iUVo0-0002f4-D1 for qemu-arm@nongnu.org; Tue, 12 Nov 2019 08:02:01 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iUVnz-0005Ol-2S for qemu-arm@nongnu.org; Tue, 12 Nov 2019 08:02:00 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:46210 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iUVny-0005OS-Tg for qemu-arm@nongnu.org; Tue, 12 Nov 2019 08:01:58 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1573563717; 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=HsBUanOsuGMlQrRd7wFmfdPgoLITqUpiAVc+JdLSNsM=; b=UMQtAL52abPLHgLEZeqV3y2aimSWQ7glNPLKCj3fISz1pW/Bx9ATQWD8YbTeB6mtrzEImS vwPJzs8ukgNERd5/Q/NrKS/OaZ3TcAKWfA52cZnlYkNXh5qUtM0Q9uGKQ5sYiME4rpXs5F 3BwfithfRu5EnY0tyYpWeBTN4NxIPq0= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-311-2XUNvjmsMXuNKjaiMOeo-g-1; Tue, 12 Nov 2019 08:01:54 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 2755B18B5F6A; Tue, 12 Nov 2019 13:01:53 +0000 (UTC) Received: from localhost (unknown [10.43.2.114]) by smtp.corp.redhat.com (Postfix) with ESMTP id DF1746292A; Tue, 12 Nov 2019 13:01:47 +0000 (UTC) Date: Tue, 12 Nov 2019 14:01:45 +0100 From: Igor Mammedov To: Shameer Kolothum Subject: Re: [PATCH 5/5] hw/arm/virt: Add nvdimm hotplug support Message-ID: <20191112140145.7ad2f034@redhat.com> In-Reply-To: <20191004155302.4632-6-shameerali.kolothum.thodi@huawei.com> References: <20191004155302.4632-1-shameerali.kolothum.thodi@huawei.com> <20191004155302.4632-6-shameerali.kolothum.thodi@huawei.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-MC-Unique: 2XUNvjmsMXuNKjaiMOeo-g-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable 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-arm@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, shannon.zhaosl@gmail.com, qemu-devel@nongnu.org, xuwei5@hisilicon.com, linuxarm@huawei.com, eric.auger@redhat.com, qemu-arm@nongnu.org, lersek@redhat.com Errors-To: qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org Sender: "Qemu-arm" X-TUID: seqT6nfJyFCo On Fri, 4 Oct 2019 16:53:02 +0100 Shameer Kolothum wrote: > This adds support for nvdimm hotplug events through GED > and enables nvdimm for the arm/virt. Now Guests with DT boot > can have nvdimm cold plug and with ACPI both cold/hot plug. >=20 > Hot removal functionality is not yet supported. >=20 > Signed-off-by: Shameer Kolothum I'd move out DT cold-plug out of this patch is it's not related to this patch at all otherwise patch looks good, so=20 Reviewed-by: Igor Mammedov > --- > docs/specs/acpi_hw_reduced_hotplug.rst | 1 + > hw/acpi/generic_event_device.c | 13 +++++++++++++ > hw/arm/virt.c | 20 +++++++++++++++----- > include/hw/acpi/generic_event_device.h | 1 + > 4 files changed, 30 insertions(+), 5 deletions(-) >=20 > diff --git a/docs/specs/acpi_hw_reduced_hotplug.rst b/docs/specs/acpi_hw_= reduced_hotplug.rst > index 911a98255b..e3abe975bf 100644 > --- a/docs/specs/acpi_hw_reduced_hotplug.rst > +++ b/docs/specs/acpi_hw_reduced_hotplug.rst > @@ -63,6 +63,7 @@ GED IO interface (4 byte access) > bits: > 0: Memory hotplug event > 1: System power down event > + 2: NVDIMM hotplug event > 2-31: Reserved > =20 > **write_access:** > diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_devic= e.c > index 9cee90cc70..ad1b684304 100644 > --- a/hw/acpi/generic_event_device.c > +++ b/hw/acpi/generic_event_device.c > @@ -16,6 +16,7 @@ > #include "hw/acpi/generic_event_device.h" > #include "hw/irq.h" > #include "hw/mem/pc-dimm.h" > +#include "hw/mem/nvdimm.h" > #include "hw/qdev-properties.h" > #include "migration/vmstate.h" > #include "qemu/error-report.h" > @@ -23,6 +24,7 @@ > static const uint32_t ged_supported_events[] =3D { > ACPI_GED_MEM_HOTPLUG_EVT, > ACPI_GED_PWR_DOWN_EVT, > + ACPI_GED_NVDIMM_HOTPLUG_EVT, > }; > =20 > /* > @@ -110,6 +112,11 @@ void build_ged_aml(Aml *table, const char *name, Hot= plugHandler *hotplug_dev, > aml_notify(aml_name(ACPI_POWER_BUTTON_DEVICE)= , > aml_int(0x80))); > break; > + case ACPI_GED_NVDIMM_HOTPLUG_EVT: > + aml_append(if_ctx, > + aml_notify(aml_name("\\_SB.NVDR"), > + aml_int(0x80))); > + break; > default: > /* > * Please make sure all the events in ged_supported_even= ts[] > @@ -175,7 +182,11 @@ static void acpi_ged_device_plug_cb(HotplugHandler *= hotplug_dev, > AcpiGedState *s =3D ACPI_GED(hotplug_dev); > =20 > if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { > + if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) { > + nvdimm_acpi_plug_cb(hotplug_dev, dev); > + } else { > acpi_memory_plug_cb(hotplug_dev, &s->memhp_state, dev, errp)= ; > + } > } else { > error_setg(errp, "virt: device plug request for unsupported devi= ce" > " type: %s", object_get_typename(OBJECT(dev))); > @@ -192,6 +203,8 @@ static void acpi_ged_send_event(AcpiDeviceIf *adev, A= cpiEventStatusBits ev) > sel =3D ACPI_GED_MEM_HOTPLUG_EVT; > } else if (ev & ACPI_POWER_DOWN_STATUS) { > sel =3D ACPI_GED_PWR_DOWN_EVT; > + } else if (ev & ACPI_NVDIMM_HOTPLUG_STATUS) { > + sel =3D ACPI_GED_NVDIMM_HOTPLUG_EVT; > } else { > /* Unknown event. Return without generating interrupt. */ > warn_report("GED: Unsupported event %d. No irq injected", ev); > diff --git a/hw/arm/virt.c b/hw/arm/virt.c > index 30bc8a7803..acdcba9638 100644 > --- a/hw/arm/virt.c > +++ b/hw/arm/virt.c > @@ -543,6 +543,10 @@ static inline DeviceState *create_acpi_ged(VirtMachi= neState *vms, qemu_irq *pic) > event |=3D ACPI_GED_MEM_HOTPLUG_EVT; > } > =20 > + if (ms->nvdimms_state->is_enabled) { > + event |=3D ACPI_GED_NVDIMM_HOTPLUG_EVT; > + } > + > dev =3D qdev_create(NULL, TYPE_ACPI_GED); > qdev_prop_set_uint32(dev, "ged-event", event); > =20 > @@ -1938,9 +1942,12 @@ static void virt_memory_pre_plug(HotplugHandler *h= otplug_dev, DeviceState *dev, > } > =20 > if (!vms->acpi_dev) { > - error_setg(errp, > - "memory hotplug is not enabled: missing acpi-ged devi= ce"); > - return; > + /* Allow nvdimm DT or cold plug */ > + if (!(is_nvdimm && !dev->hotplugged)) { > + error_setg(errp, > + "memory hotplug is not enabled: missing acpi-ged = device"); > + return; > + } > } > =20 > pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev), NULL, errp); > @@ -1964,8 +1971,10 @@ static void virt_memory_plug(HotplugHandler *hotpl= ug_dev, > nvdimm_plug(ms->nvdimms_state); > } > =20 > - hhc =3D HOTPLUG_HANDLER_GET_CLASS(vms->acpi_dev); > - hhc->plug(HOTPLUG_HANDLER(vms->acpi_dev), dev, &error_abort); > + if (vms->acpi_dev) { > + hhc =3D HOTPLUG_HANDLER_GET_CLASS(vms->acpi_dev); > + hhc->plug(HOTPLUG_HANDLER(vms->acpi_dev), dev, &error_abort); > + } > out: > error_propagate(errp, local_err); > } > @@ -2073,6 +2082,7 @@ static void virt_machine_class_init(ObjectClass *oc= , void *data) > hc->plug =3D virt_machine_device_plug_cb; > hc->unplug_request =3D virt_machine_device_unplug_request_cb; > mc->numa_mem_supported =3D true; > + mc->nvdimm_supported =3D true; > mc->auto_enable_numa_with_memhp =3D true; > } > =20 > diff --git a/include/hw/acpi/generic_event_device.h b/include/hw/acpi/gen= eric_event_device.h > index d157eac088..9eb86ca4fd 100644 > --- a/include/hw/acpi/generic_event_device.h > +++ b/include/hw/acpi/generic_event_device.h > @@ -82,6 +82,7 @@ > */ > #define ACPI_GED_MEM_HOTPLUG_EVT 0x1 > #define ACPI_GED_PWR_DOWN_EVT 0x2 > +#define ACPI_GED_NVDIMM_HOTPLUG_EVT 0x4 > =20 > typedef struct GEDState { > MemoryRegion io;