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[209.51.188.17]) by mx.google.com with ESMTPS id u9si1748997qkm.36.2019.09.17.08.28.29 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 17 Sep 2019 08:28:29 -0700 (PDT) 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; 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]:47302 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iAFP2-0000Uy-Fa for alex.bennee@linaro.org; Tue, 17 Sep 2019 11:28:28 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34093) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iAFMc-0007Qm-2M for qemu-arm@nongnu.org; Tue, 17 Sep 2019 11:25:59 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iAFMY-0006Z7-WF for qemu-arm@nongnu.org; Tue, 17 Sep 2019 11:25:56 -0400 Received: from mx1.redhat.com ([209.132.183.28]:32884) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iAFMY-0006Ym-Lg; Tue, 17 Sep 2019 11:25:54 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 28D2158487; Tue, 17 Sep 2019 15:25:53 +0000 (UTC) Received: from localhost (unknown [10.43.2.182]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3520B5C28C; Tue, 17 Sep 2019 15:25:47 +0000 (UTC) Date: Tue, 17 Sep 2019 17:25:45 +0200 From: Igor Mammedov To: Shameerali Kolothum Thodi Message-ID: <20190917172545.41e1dfb9@redhat.com> In-Reply-To: <5FC3163CFD30C246ABAA99954A238FA83F3F293A@lhreml524-mbs.china.huawei.com> References: <20190904085629.13872-1-shameerali.kolothum.thodi@huawei.com> <20190904085629.13872-6-shameerali.kolothum.thodi@huawei.com> <20190911150700.7a917d14@redhat.com> <5FC3163CFD30C246ABAA99954A238FA83F3F293A@lhreml524-mbs.china.huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2 (mx1.redhat.com [10.5.110.71]); Tue, 17 Sep 2019 15:25:53 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: Re: [Qemu-arm] [PATCH-for-4.2 v10 05/11] hw/arm/virt: Enable device memory cold/hot plug with ACPI boot 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" , "sameo@linux.intel.com" , "shannon.zhaosl@gmail.com" , "ard.biesheuvel@linaro.org" , "qemu-devel@nongnu.org" , Linuxarm , "eric.auger@redhat.com" , "qemu-arm@nongnu.org" , "xuwei \(O\)" , "sebastien.boeuf@intel.com" , "lersek@redhat.com" Errors-To: qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org Sender: "Qemu-arm" X-TUID: JcXJHS45BVHh On Mon, 16 Sep 2019 10:30:45 +0000 Shameerali Kolothum Thodi wrote: > Hi Igor, > > > -----Original Message----- > > From: Igor Mammedov [mailto:imammedo@redhat.com] > > Sent: 11 September 2019 14:07 > > To: Shameerali Kolothum Thodi > > Cc: qemu-devel@nongnu.org; qemu-arm@nongnu.org; > > eric.auger@redhat.com; peter.maydell@linaro.org; > > shannon.zhaosl@gmail.com; sameo@linux.intel.com; > > sebastien.boeuf@intel.com; xuwei (O) ; > > lersek@redhat.com; ard.biesheuvel@linaro.org; Linuxarm > > > > Subject: Re: [PATCH-for-4.2 v10 05/11] hw/arm/virt: Enable device memory > > cold/hot plug with ACPI boot > > > > On Wed, 4 Sep 2019 09:56:23 +0100 > > Shameer Kolothum wrote: > > > > [...] > > > @@ -730,6 +733,19 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, > > VirtMachineState *vms) > > > vms->highmem, vms->highmem_ecam); > > > acpi_dsdt_add_gpio(scope, &memmap[VIRT_GPIO], > > > (irqmap[VIRT_GPIO] + ARM_SPI_BASE)); > > > + if (vms->acpi_dev) { > > > + build_ged_aml(scope, "\\_SB."GED_DEVICE, > > > + HOTPLUG_HANDLER(vms->acpi_dev), > > > + irqmap[VIRT_ACPI_GED] + ARM_SPI_BASE, > > AML_SYSTEM_MEMORY, > > > + memmap[VIRT_ACPI_GED].base); > > > + } > > > + > > > + if (vms->acpi_dev && ms->ram_slots) { > > > + build_memory_hotplug_aml(scope, ms->ram_slots, "\\_SB", > > NULL, > > > + AML_SYSTEM_MEMORY, > > > + > > memmap[VIRT_PCDIMM_ACPI].base); > > > + } > > one more thing (though non critical), if ms->ram_slots == 0 ^^^^ > > makes IASL spew a warning > > > > External (_SB_.MHPC.MSCN, MethodObj) // Warning: Unknown > > method, guessing 0 arguments > > > > In general non-existing references within methods are fine if they aren't ever > > used. > > however we can be a little bit less sloppy. > > Below you advertise "event = ACPI_GED_MEM_HOTPLUG_EVT", and then here > > suddenly > > don't generate essential AML part for it here. > > Ok. > > > For consistency if above is conditioned on ms->ram_slots != 0, probably > > it would be better to move that condition where you set 'event' value and > > check property value above instead of ms->ram_slots > > I understand the concern here, but not sure I get the suggestion to check > the "property" instead of ms->ram_slots correctly. > > Is this what you have in mind? > > diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c > index 538b3bbefa..5c9269dca1 100644 > --- a/hw/arm/virt-acpi-build.c > +++ b/hw/arm/virt-acpi-build.c > @@ -742,10 +742,15 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) > memmap[VIRT_ACPI_GED].base); > } > > - if (vms->acpi_dev && ms->ram_slots) { > - build_memory_hotplug_aml(scope, ms->ram_slots, "\\_SB", NULL, > - AML_SYSTEM_MEMORY, > - memmap[VIRT_PCDIMM_ACPI].base); > + if (vms->acpi_dev) { > + uint32_t event = object_property_get_uint(OBJECT(vms->acpi_dev), > + "ged-event", NULL); s/NULL/error_abort/ > + > + if (event & ACPI_GED_MEM_HOTPLUG_EVT) { > + build_memory_hotplug_aml(scope, ms->ram_slots, "\\_SB", NULL, > + AML_SYSTEM_MEMORY, > + memmap[VIRT_PCDIMM_ACPI].base); > + } > } > > acpi_dsdt_add_power_button(scope); > diff --git a/hw/arm/virt.c b/hw/arm/virt.c > index bc152ea2b0..6b024b16df 100644 > --- a/hw/arm/virt.c > +++ b/hw/arm/virt.c > @@ -534,8 +534,13 @@ static void fdt_add_pmu_nodes(const VirtMachineState *vms) > static inline DeviceState *create_acpi_ged(VirtMachineState *vms, qemu_irq *pic) > { > DeviceState *dev; > + MachineState *ms = MACHINE(vms); > int irq = vms->irqmap[VIRT_ACPI_GED]; > - uint32_t event = ACPI_GED_MEM_HOTPLUG_EVT; > + uint32_t event = 0; > + > + if (ms->ram_slots) { > + event = ACPI_GED_MEM_HOTPLUG_EVT; > + } > > dev = qdev_create(NULL, TYPE_ACPI_GED); > qdev_prop_set_uint32(dev, "ged-event", event); > > ---8--- > > Please let me know. Looks good to me. Thanks! > > Thanks, > Shameer > > > > [...] > > > +static inline DeviceState *create_acpi_ged(VirtMachineState *vms, > > qemu_irq *pic) > > > +{ > > > + DeviceState *dev; > > > + int irq = vms->irqmap[VIRT_ACPI_GED]; > > > + uint32_t event = ACPI_GED_MEM_HOTPLUG_EVT; > > > + > > > + dev = qdev_create(NULL, TYPE_ACPI_GED); > > > + qdev_prop_set_uint32(dev, "ged-event", event); > > > + qdev_init_nofail(dev); > > > + > > > + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, > > vms->memmap[VIRT_ACPI_GED].base); > > > + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, > > vms->memmap[VIRT_PCDIMM_ACPI].base); > > > + > > > + sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[irq]); > > > + > > > + return dev; > > > +} > > > + > > [...] 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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 1C0D5C4CEC9 for ; Tue, 17 Sep 2019 15:30:37 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 DFDBF206C2 for ; Tue, 17 Sep 2019 15:30:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DFDBF206C2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:47316 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iAFR5-00023W-C3 for qemu-devel@archiver.kernel.org; Tue, 17 Sep 2019 11:30:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34123) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iAFMf-0007W1-5h for qemu-devel@nongnu.org; Tue, 17 Sep 2019 11:26:02 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iAFMd-0006ao-Ic for qemu-devel@nongnu.org; Tue, 17 Sep 2019 11:26:00 -0400 Received: from mx1.redhat.com ([209.132.183.28]:32884) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iAFMY-0006Ym-Lg; Tue, 17 Sep 2019 11:25:54 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 28D2158487; Tue, 17 Sep 2019 15:25:53 +0000 (UTC) Received: from localhost (unknown [10.43.2.182]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3520B5C28C; Tue, 17 Sep 2019 15:25:47 +0000 (UTC) Date: Tue, 17 Sep 2019 17:25:45 +0200 From: Igor Mammedov To: Shameerali Kolothum Thodi Message-ID: <20190917172545.41e1dfb9@redhat.com> In-Reply-To: <5FC3163CFD30C246ABAA99954A238FA83F3F293A@lhreml524-mbs.china.huawei.com> References: <20190904085629.13872-1-shameerali.kolothum.thodi@huawei.com> <20190904085629.13872-6-shameerali.kolothum.thodi@huawei.com> <20190911150700.7a917d14@redhat.com> <5FC3163CFD30C246ABAA99954A238FA83F3F293A@lhreml524-mbs.china.huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2 (mx1.redhat.com [10.5.110.71]); Tue, 17 Sep 2019 15:25:53 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: Re: [Qemu-devel] [PATCH-for-4.2 v10 05/11] hw/arm/virt: Enable device memory cold/hot plug with ACPI boot 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: "peter.maydell@linaro.org" , "sameo@linux.intel.com" , "shannon.zhaosl@gmail.com" , "ard.biesheuvel@linaro.org" , "qemu-devel@nongnu.org" , Linuxarm , "eric.auger@redhat.com" , "qemu-arm@nongnu.org" , "xuwei \(O\)" , "sebastien.boeuf@intel.com" , "lersek@redhat.com" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Mon, 16 Sep 2019 10:30:45 +0000 Shameerali Kolothum Thodi wrote: > Hi Igor, > > > -----Original Message----- > > From: Igor Mammedov [mailto:imammedo@redhat.com] > > Sent: 11 September 2019 14:07 > > To: Shameerali Kolothum Thodi > > Cc: qemu-devel@nongnu.org; qemu-arm@nongnu.org; > > eric.auger@redhat.com; peter.maydell@linaro.org; > > shannon.zhaosl@gmail.com; sameo@linux.intel.com; > > sebastien.boeuf@intel.com; xuwei (O) ; > > lersek@redhat.com; ard.biesheuvel@linaro.org; Linuxarm > > > > Subject: Re: [PATCH-for-4.2 v10 05/11] hw/arm/virt: Enable device memory > > cold/hot plug with ACPI boot > > > > On Wed, 4 Sep 2019 09:56:23 +0100 > > Shameer Kolothum wrote: > > > > [...] > > > @@ -730,6 +733,19 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, > > VirtMachineState *vms) > > > vms->highmem, vms->highmem_ecam); > > > acpi_dsdt_add_gpio(scope, &memmap[VIRT_GPIO], > > > (irqmap[VIRT_GPIO] + ARM_SPI_BASE)); > > > + if (vms->acpi_dev) { > > > + build_ged_aml(scope, "\\_SB."GED_DEVICE, > > > + HOTPLUG_HANDLER(vms->acpi_dev), > > > + irqmap[VIRT_ACPI_GED] + ARM_SPI_BASE, > > AML_SYSTEM_MEMORY, > > > + memmap[VIRT_ACPI_GED].base); > > > + } > > > + > > > + if (vms->acpi_dev && ms->ram_slots) { > > > + build_memory_hotplug_aml(scope, ms->ram_slots, "\\_SB", > > NULL, > > > + AML_SYSTEM_MEMORY, > > > + > > memmap[VIRT_PCDIMM_ACPI].base); > > > + } > > one more thing (though non critical), if ms->ram_slots == 0 ^^^^ > > makes IASL spew a warning > > > > External (_SB_.MHPC.MSCN, MethodObj) // Warning: Unknown > > method, guessing 0 arguments > > > > In general non-existing references within methods are fine if they aren't ever > > used. > > however we can be a little bit less sloppy. > > Below you advertise "event = ACPI_GED_MEM_HOTPLUG_EVT", and then here > > suddenly > > don't generate essential AML part for it here. > > Ok. > > > For consistency if above is conditioned on ms->ram_slots != 0, probably > > it would be better to move that condition where you set 'event' value and > > check property value above instead of ms->ram_slots > > I understand the concern here, but not sure I get the suggestion to check > the "property" instead of ms->ram_slots correctly. > > Is this what you have in mind? > > diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c > index 538b3bbefa..5c9269dca1 100644 > --- a/hw/arm/virt-acpi-build.c > +++ b/hw/arm/virt-acpi-build.c > @@ -742,10 +742,15 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) > memmap[VIRT_ACPI_GED].base); > } > > - if (vms->acpi_dev && ms->ram_slots) { > - build_memory_hotplug_aml(scope, ms->ram_slots, "\\_SB", NULL, > - AML_SYSTEM_MEMORY, > - memmap[VIRT_PCDIMM_ACPI].base); > + if (vms->acpi_dev) { > + uint32_t event = object_property_get_uint(OBJECT(vms->acpi_dev), > + "ged-event", NULL); s/NULL/error_abort/ > + > + if (event & ACPI_GED_MEM_HOTPLUG_EVT) { > + build_memory_hotplug_aml(scope, ms->ram_slots, "\\_SB", NULL, > + AML_SYSTEM_MEMORY, > + memmap[VIRT_PCDIMM_ACPI].base); > + } > } > > acpi_dsdt_add_power_button(scope); > diff --git a/hw/arm/virt.c b/hw/arm/virt.c > index bc152ea2b0..6b024b16df 100644 > --- a/hw/arm/virt.c > +++ b/hw/arm/virt.c > @@ -534,8 +534,13 @@ static void fdt_add_pmu_nodes(const VirtMachineState *vms) > static inline DeviceState *create_acpi_ged(VirtMachineState *vms, qemu_irq *pic) > { > DeviceState *dev; > + MachineState *ms = MACHINE(vms); > int irq = vms->irqmap[VIRT_ACPI_GED]; > - uint32_t event = ACPI_GED_MEM_HOTPLUG_EVT; > + uint32_t event = 0; > + > + if (ms->ram_slots) { > + event = ACPI_GED_MEM_HOTPLUG_EVT; > + } > > dev = qdev_create(NULL, TYPE_ACPI_GED); > qdev_prop_set_uint32(dev, "ged-event", event); > > ---8--- > > Please let me know. Looks good to me. Thanks! > > Thanks, > Shameer > > > > [...] > > > +static inline DeviceState *create_acpi_ged(VirtMachineState *vms, > > qemu_irq *pic) > > > +{ > > > + DeviceState *dev; > > > + int irq = vms->irqmap[VIRT_ACPI_GED]; > > > + uint32_t event = ACPI_GED_MEM_HOTPLUG_EVT; > > > + > > > + dev = qdev_create(NULL, TYPE_ACPI_GED); > > > + qdev_prop_set_uint32(dev, "ged-event", event); > > > + qdev_init_nofail(dev); > > > + > > > + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, > > vms->memmap[VIRT_ACPI_GED].base); > > > + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, > > vms->memmap[VIRT_PCDIMM_ACPI].base); > > > + > > > + sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[irq]); > > > + > > > + return dev; > > > +} > > > + > > [...]