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From: Haozhong Zhang <haozhong.zhang@intel.com>
To: qemu-devel@nongnu.org
Cc: Xiao Guangrong <guangrong.xiao@gmail.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	Igor Mammedov <imammedo@redhat.com>,
	Stefan Hajnoczi <stefanha@gmail.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Haozhong Zhang <haozhong.zhang@intel.com>
Subject: [Qemu-devel] [PATCH] nvdimm acpi: fix region format interface code
Date: Wed,  7 Jun 2017 16:06:39 +0800	[thread overview]
Message-ID: <20170607080639.22120-1-haozhong.zhang@intel.com> (raw)

Per ACPI 6.2, section 5.2.25.6 and JEDEC Annex L Release 3, the
current region format interface code 0x201 indicates the block
addressed function interface 1, rather than a byte addressable
interface. Fix it by using 0x301 which indicates the byte addressable
no energy backed function interface 1.

Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
---
 hw/acpi/nvdimm.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
index 8e7d6ec034..b5734f5897 100644
--- a/hw/acpi/nvdimm.c
+++ b/hw/acpi/nvdimm.c
@@ -338,9 +338,10 @@ static void nvdimm_build_structure_dcr(GArray *structures, DeviceState *dev)
     nfit_dcr->revision_id = cpu_to_le16(1 /* Current Revision supported
                                              in ACPI 6.0 is 1. */);
     nfit_dcr->serial_number = cpu_to_le32(sn);
-    nfit_dcr->fic = cpu_to_le16(0x201 /* Format Interface Code. See Chapter
-                                         2: NVDIMM Device Specific Method
-                                         (DSM) in DSM Spec Rev1.*/);
+    nfit_dcr->fic = cpu_to_le16(0x301 /* Format Interface Code:
+                                         Byte addressable, no energy backed.
+                                         See ACPI 6.2, sect 5.2.25.6 and
+                                         JEDEC Annex L Release 3. */);
 }
 
 static GArray *nvdimm_build_device_structure(void)
-- 
2.11.0

             reply	other threads:[~2017-06-07  8:07 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-07  8:06 Haozhong Zhang [this message]
2017-06-07 15:32 ` [Qemu-devel] [PATCH] nvdimm acpi: fix region format interface code Stefan Hajnoczi
2017-06-08  3:07 ` Xiao Guangrong
2017-06-08  5:06   ` Haozhong Zhang
2017-06-08  6:40     ` Xiao Guangrong
2017-06-08  6:50       ` Haozhong Zhang
2017-06-08  7:57         ` Dan Williams

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