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Date: Mon, 18 Jan 2021 08:20:57 +0530 From: Nava kishore Manne <nava.manne@...inx.com> To: <mdf@...nel.org>, <trix@...hat.com>, <robh+dt@...nel.org>, <michal.simek@...inx.com>, <linux-fpga@...r.kernel.org>, <devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org> CC: <git@...inx.com>, <chinnikishore369@...il.com>, Nava kishore Manne <nava.manne@...inx.com> Subject: [PATCH 1/2] fpga: mgr: Adds secure BitStream loading support This commit adds secure flags to the framework to support secure BitStream Loading. Signed-off-by: Nava kishore Manne <nava.manne@...inx.com> --- drivers/fpga/of-fpga-region.c | 10 ++++++++++ include/linux/fpga/fpga-mgr.h | 12 ++++++++++++ 2 files changed, 22 insertions(+) diff --git a/drivers/fpga/of-fpga-region.c b/drivers/fpga/of-fpga-region.c index e405309baadc..3a5eb4808888 100644 --- a/drivers/fpga/of-fpga-region.c +++ b/drivers/fpga/of-fpga-region.c @@ -228,6 +228,16 @@ static struct fpga_image_info *of_fpga_region_parse_ov( if (of_property_read_bool(overlay, "encrypted-fpga-config")) info->flags |= FPGA_MGR_ENCRYPTED_BITSTREAM; + if (of_property_read_bool(overlay, "userkey-encrypted-fpga-config")) + info->flags |= FPGA_MGR_USERKEY_ENCRYPTED_BITSTREAM; + + if (of_property_read_bool(overlay, "ddrmem-authenticated-fpga-config")) + info->flags |= FPGA_MGR_DDR_MEM_AUTH_BITSTREAM; + + if (of_property_read_bool(overlay, + "securemem-authenticated-fpga-config")) + info->flags |= FPGA_MGR_SECURE_MEM_AUTH_BITSTREAM; + if (!of_property_read_string(overlay, "firmware-name", &firmware_name)) { info->firmware_name = devm_kstrdup(dev, firmware_name, diff --git a/include/linux/fpga/fpga-mgr.h b/include/linux/fpga/fpga-mgr.h index 2bc3030a69e5..2f7455a60666 100644 --- a/include/linux/fpga/fpga-mgr.h +++ b/include/linux/fpga/fpga-mgr.h @@ -67,12 +67,24 @@ enum fpga_mgr_states { * %FPGA_MGR_BITSTREAM_LSB_FIRST: SPI bitstream bit order is LSB first * * %FPGA_MGR_COMPRESSED_BITSTREAM: FPGA bitstream is compressed + * + * %FPGA_MGR_USERKEY_ENCRYPTED_BITSTREAM: indicates bitstream is encrypted with + * user key + * + * %FPGA_MGR_DDR_MEM_AUTH_BITSTREAM: do bitstream authentication using DDR + * memory if supported + * + * %FPGA_MGR_SECURE_MEM_AUTH_BITSTREAM: do bitstream authentication using secure + * memory if supported */ #define FPGA_MGR_PARTIAL_RECONFIG BIT(0) #define FPGA_MGR_EXTERNAL_CONFIG BIT(1) #define FPGA_MGR_ENCRYPTED_BITSTREAM BIT(2) #define FPGA_MGR_BITSTREAM_LSB_FIRST BIT(3) #define FPGA_MGR_COMPRESSED_BITSTREAM BIT(4) +#define FPGA_MGR_USERKEY_ENCRYPTED_BITSTREAM BIT(5) +#define FPGA_MGR_DDR_MEM_AUTH_BITSTREAM BIT(6) +#define FPGA_MGR_SECURE_MEM_AUTH_BITSTREAM BIT(7) /** * struct fpga_image_info - information specific to a FPGA image -- 2.18.0
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