From: richard.gong@linux.intel.com
To: mdf@kernel.org, trix@redhat.com, gregkh@linuxfoundation.org,
linux-fpga@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Richard Gong <richard.gong@intel.com>
Subject: [PATCHv5 5/7] fpga: of-fpga-region: add authenticate-fpga-config property
Date: Tue, 9 Feb 2021 16:20:31 -0600 [thread overview]
Message-ID: <1612909233-13867-6-git-send-email-richard.gong@linux.intel.com> (raw)
In-Reply-To: <1612909233-13867-1-git-send-email-richard.gong@linux.intel.com>
From: Richard Gong <richard.gong@intel.com>
Add authenticate-fpga-config property to support FPGA bitstream
authentication, which makes sure a signed bitstream has valid signatures.
Signed-off-by: Richard Gong <richard.gong@intel.com>
---
v5: no change
v4: add additional checks to make sure *only* authenticate
v3: no change
v2: changed in alphabetical order
---
drivers/fpga/of-fpga-region.c | 24 +++++++++++++++++-------
1 file changed, 17 insertions(+), 7 deletions(-)
diff --git a/drivers/fpga/of-fpga-region.c b/drivers/fpga/of-fpga-region.c
index e405309..5074479 100644
--- a/drivers/fpga/of-fpga-region.c
+++ b/drivers/fpga/of-fpga-region.c
@@ -218,15 +218,25 @@ static struct fpga_image_info *of_fpga_region_parse_ov(
info->overlay = overlay;
- /* Read FPGA region properties from the overlay */
- if (of_property_read_bool(overlay, "partial-fpga-config"))
- info->flags |= FPGA_MGR_PARTIAL_RECONFIG;
+ /*
+ * Read FPGA region properties from the overlay.
+ *
+ * First check the integrity of the bitstream. If the
+ * authentication is passed, the user can perform other
+ * operations.
+ */
+ if (of_property_read_bool(overlay, "authenticate-fpga-config")) {
+ info->flags |= FPGA_MGR_BITSTREAM_AUTHENTICATE;
+ } else {
+ if (of_property_read_bool(overlay, "partial-fpga-config"))
+ info->flags |= FPGA_MGR_PARTIAL_RECONFIG;
- if (of_property_read_bool(overlay, "external-fpga-config"))
- info->flags |= FPGA_MGR_EXTERNAL_CONFIG;
+ if (of_property_read_bool(overlay, "external-fpga-config"))
+ info->flags |= FPGA_MGR_EXTERNAL_CONFIG;
- if (of_property_read_bool(overlay, "encrypted-fpga-config"))
- info->flags |= FPGA_MGR_ENCRYPTED_BITSTREAM;
+ if (of_property_read_bool(overlay, "encrypted-fpga-config"))
+ info->flags |= FPGA_MGR_ENCRYPTED_BITSTREAM;
+ }
if (!of_property_read_string(overlay, "firmware-name",
&firmware_name)) {
--
2.7.4
next prev parent reply other threads:[~2021-02-10 0:58 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-09 22:20 [PATCHv5 0/7] Extend Intel service layer, FPGA manager and region richard.gong
2021-02-09 22:20 ` [PATCHv5 1/7] firmware: stratix10-svc: reset COMMAND_RECONFIG_FLAG_PARTIAL to 0 richard.gong
2021-02-13 15:44 ` Tom Rix
2021-02-15 14:41 ` Richard Gong
2021-02-15 14:32 ` Tom Rix
2021-03-18 16:57 ` Moritz Fischer
2021-02-09 22:20 ` [PATCHv5 2/7] firmware: stratix10-svc: add COMMAND_AUTHENTICATE_BITSTREAM flag richard.gong
2021-02-09 22:20 ` [PATCHv5 3/7] firmware: stratix10-svc: extend SVC driver to get the firmware version richard.gong
2021-03-28 20:52 ` Moritz Fischer
2021-02-09 22:20 ` [PATCHv5 4/7] fpga: fpga-mgr: add FPGA_MGR_BITSTREAM_AUTHENTICATE flag richard.gong
2021-02-09 22:20 ` richard.gong [this message]
2021-02-09 22:20 ` [PATCHv5 6/7] dt-bindings: fpga: add authenticate-fpga-config property richard.gong
2021-02-09 22:20 ` [PATCHv5 7/7] fpga: stratix10-soc: extend driver for bitstream authentication richard.gong
2021-02-25 13:07 ` [PATCHv5 0/7] Extend Intel service layer, FPGA manager and region Gong, Richard
2021-02-25 13:28 ` Tom Rix
2021-02-25 16:58 ` Richard Gong
2021-03-19 23:22 ` Richard Gong
2021-03-20 14:35 ` Tom Rix
[not found] ` <MWHPR11MB0015516D86D02A0FE5423D6387669@MWHPR11MB0015.namprd11.prod.outlook.com>
2021-03-21 21:05 ` FW: " Richard Gong
2021-03-22 13:53 ` Tom Rix
2021-03-22 15:53 ` Richard Gong
2021-03-27 18:09 ` Moritz Fischer
2021-03-28 15:40 ` Tom Rix
2021-03-28 17:20 ` Moritz Fischer
2021-03-31 18:47 ` Russ Weight
2021-03-31 22:16 ` Moritz Fischer
2021-04-07 23:27 ` Russ Weight
2021-05-02 18:43 ` Moritz Fischer
2021-04-13 1:41 ` Richard Gong
2021-04-29 14:56 ` Richard Gong
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