From patchwork Thu Nov 3 18:36:22 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiao Guangrong X-Patchwork-Id: 9411369 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5B0736022E for ; Thu, 3 Nov 2016 18:57:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5197B2AEDA for ; Thu, 3 Nov 2016 18:57:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4277D2AEDC; Thu, 3 Nov 2016 18:57:08 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id B068E2AEDA for ; Thu, 3 Nov 2016 18:57:07 +0000 (UTC) Received: from localhost ([::1]:34612 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c2NCE-0004ah-JY for patchwork-qemu-devel@patchwork.kernel.org; Thu, 03 Nov 2016 14:57:06 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53418) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c2N7U-00010e-23 for qemu-devel@nongnu.org; Thu, 03 Nov 2016 14:52:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c2N7P-0007vQ-3d for qemu-devel@nongnu.org; Thu, 03 Nov 2016 14:52:12 -0400 Received: from mga14.intel.com ([192.55.52.115]:13832) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c2N7O-0007v6-NC for qemu-devel@nongnu.org; Thu, 03 Nov 2016 14:52:07 -0400 Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga103.fm.intel.com with ESMTP; 03 Nov 2016 11:51:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,587,1473145200"; d="scan'208";a="27160439" Received: from xiaoreal1.sh.intel.com (HELO xiaoreal1.sh.intel.com.sh.intel.com) ([10.239.48.133]) by fmsmga005.fm.intel.com with ESMTP; 03 Nov 2016 11:51:37 -0700 From: Xiao Guangrong To: pbonzini@redhat.com, imammedo@redhat.com Date: Fri, 4 Nov 2016 02:36:22 +0800 Message-Id: <1478198186-45204-2-git-send-email-guangrong.xiao@linux.intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1478198186-45204-1-git-send-email-guangrong.xiao@linux.intel.com> References: <1478198186-45204-1-git-send-email-guangrong.xiao@linux.intel.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 192.55.52.115 Subject: [Qemu-devel] [PATCH v5 1/5] nvdimm acpi: prebuild nvdimm devices for available slots X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Xiao Guangrong , ehabkost@redhat.com, kvm@vger.kernel.org, mst@redhat.com, gleb@kernel.org, mtosatti@redhat.com, qemu-devel@nongnu.org, stefanha@redhat.com, dan.j.williams@intel.com, rth@twiddle.net Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP For each NVDIMM present or intended to be supported by platform, platform firmware also exposes an ACPI Namespace Device under the root device So it builds nvdimm devices for all slots to support vNVDIMM hotplug Reviewed-by: Stefan Hajnoczi Signed-off-by: Xiao Guangrong --- hw/acpi/nvdimm.c | 33 ++++++++++++++++++++------------- hw/i386/acpi-build.c | 2 +- include/hw/mem/nvdimm.h | 3 ++- 3 files changed, 23 insertions(+), 15 deletions(-) diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c index bb896c9..58bc5c6 100644 --- a/hw/acpi/nvdimm.c +++ b/hw/acpi/nvdimm.c @@ -961,12 +961,11 @@ static void nvdimm_build_device_dsm(Aml *dev, uint32_t handle) aml_append(dev, method); } -static void nvdimm_build_nvdimm_devices(GSList *device_list, Aml *root_dev) +static void nvdimm_build_nvdimm_devices(Aml *root_dev, uint32_t ram_slots) { - for (; device_list; device_list = device_list->next) { - DeviceState *dev = device_list->data; - int slot = object_property_get_int(OBJECT(dev), PC_DIMM_SLOT_PROP, - NULL); + uint32_t slot; + + for (slot = 0; slot < ram_slots; slot++) { uint32_t handle = nvdimm_slot_to_handle(slot); Aml *nvdimm_dev; @@ -987,9 +986,9 @@ static void nvdimm_build_nvdimm_devices(GSList *device_list, Aml *root_dev) } } -static void nvdimm_build_ssdt(GSList *device_list, GArray *table_offsets, - GArray *table_data, BIOSLinker *linker, - GArray *dsm_dma_arrea) +static void nvdimm_build_ssdt(GArray *table_offsets, GArray *table_data, + BIOSLinker *linker, GArray *dsm_dma_arrea, + uint32_t ram_slots) { Aml *ssdt, *sb_scope, *dev; int mem_addr_offset, nvdimm_ssdt; @@ -1021,7 +1020,7 @@ static void nvdimm_build_ssdt(GSList *device_list, GArray *table_offsets, /* 0 is reserved for root device. */ nvdimm_build_device_dsm(dev, 0); - nvdimm_build_nvdimm_devices(device_list, dev); + nvdimm_build_nvdimm_devices(dev, ram_slots); aml_append(sb_scope, dev); aml_append(ssdt, sb_scope); @@ -1046,17 +1045,25 @@ static void nvdimm_build_ssdt(GSList *device_list, GArray *table_offsets, } void nvdimm_build_acpi(GArray *table_offsets, GArray *table_data, - BIOSLinker *linker, GArray *dsm_dma_arrea) + BIOSLinker *linker, GArray *dsm_dma_arrea, + uint32_t ram_slots) { GSList *device_list; - /* no NVDIMM device is plugged. */ + /* no nvdimm device can be plugged. */ + if (!ram_slots) { + return; + } + + nvdimm_build_ssdt(table_offsets, table_data, linker, dsm_dma_arrea, + ram_slots); + device_list = nvdimm_get_plugged_device_list(); + /* no NVDIMM device is plugged. */ if (!device_list) { return; } + nvdimm_build_nfit(device_list, table_offsets, table_data, linker); - nvdimm_build_ssdt(device_list, table_offsets, table_data, linker, - dsm_dma_arrea); g_slist_free(device_list); } diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index e999654..6ae4769 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -2767,7 +2767,7 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine) } if (pcms->acpi_nvdimm_state.is_enabled) { nvdimm_build_acpi(table_offsets, tables_blob, tables->linker, - pcms->acpi_nvdimm_state.dsm_mem); + pcms->acpi_nvdimm_state.dsm_mem, machine->ram_slots); } /* Add tables supplied by user (if any) */ diff --git a/include/hw/mem/nvdimm.h b/include/hw/mem/nvdimm.h index 1cfe9e0..63a2b20 100644 --- a/include/hw/mem/nvdimm.h +++ b/include/hw/mem/nvdimm.h @@ -112,5 +112,6 @@ typedef struct AcpiNVDIMMState AcpiNVDIMMState; void nvdimm_init_acpi_state(AcpiNVDIMMState *state, MemoryRegion *io, FWCfgState *fw_cfg, Object *owner); void nvdimm_build_acpi(GArray *table_offsets, GArray *table_data, - BIOSLinker *linker, GArray *dsm_dma_arrea); + BIOSLinker *linker, GArray *dsm_dma_arrea, + uint32_t ram_slots); #endif