From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xiao Guangrong Subject: [PATCH v2 11/15] nvdimm acpi: check revision Date: Fri, 20 May 2016 16:20:08 +0800 Message-ID: <1463732412-99212-12-git-send-email-guangrong.xiao@linux.intel.com> References: <1463732412-99212-1-git-send-email-guangrong.xiao@linux.intel.com> Cc: gleb@kernel.org, mtosatti@redhat.com, stefanha@redhat.com, mst@redhat.com, rth@twiddle.net, ehabkost@redhat.com, dan.j.williams@intel.com, kvm@vger.kernel.org, qemu-devel@nongnu.org, Xiao Guangrong To: pbonzini@redhat.com, imammedo@redhat.com Return-path: Received: from mga02.intel.com ([134.134.136.20]:14778 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933205AbcETIar (ORCPT ); Fri, 20 May 2016 04:30:47 -0400 In-Reply-To: <1463732412-99212-1-git-send-email-guangrong.xiao@linux.intel.com> Sender: kvm-owner@vger.kernel.org List-ID: Cuurently only revision 1 is supported Signed-off-by: Xiao Guangrong --- hw/acpi/nvdimm.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c index 897d0a6..7af428f 100644 --- a/hw/acpi/nvdimm.c +++ b/hw/acpi/nvdimm.c @@ -483,6 +483,13 @@ nvdimm_dsm_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) nvdimm_debug("Revision %#x Handler %#x Function %#x.\n", in->revision, in->handle, in->function); + if (in->revision != 0x1 /* Currently we only support DSM Spec Rev1. */) { + nvdimm_debug("Revision %#x is not supported, expect %#x.\n", + in->revision, 0x1); + nvdimm_dsm_no_payload(1 /* Not Supported */, dsm_mem_addr); + goto exit; + } + /* Handle 0 is reserved for NVDIMM Root Device. */ if (!in->handle) { nvdimm_dsm_root(in, dsm_mem_addr); -- 1.8.3.1