diff mbox series

arm64: zynqmp: Print the secure boot status information in EL3

Message ID 20210722111932.5544-1-jorge@foundries.io
State Superseded
Delegated to: Michal Simek
Headers show
Series arm64: zynqmp: Print the secure boot status information in EL3 | expand

Commit Message

Jorge Ramirez-Ortiz, Foundries July 22, 2021, 11:19 a.m. UTC
Confirm the secure boot configuration on the console.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
---
 arch/arm/mach-zynqmp/include/mach/hardware.h |  3 ++-
 board/xilinx/zynqmp/zynqmp.c                 | 16 +++++++++++++++-
 2 files changed, 17 insertions(+), 2 deletions(-)

Comments

Igor Opaniuk July 22, 2021, 4 p.m. UTC | #1
Hi Jorge,

On Thu, Jul 22, 2021 at 2:19 PM Jorge Ramirez-Ortiz <jorge@foundries.io> wrote:
>
> Confirm the secure boot configuration on the console.
>
> Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
> ---
>  arch/arm/mach-zynqmp/include/mach/hardware.h |  3 ++-
>  board/xilinx/zynqmp/zynqmp.c                 | 16 +++++++++++++++-
>  2 files changed, 17 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/mach-zynqmp/include/mach/hardware.h b/arch/arm/mach-zynqmp/include/mach/hardware.h
> index 3776499070..3d3ffa086e 100644
> --- a/arch/arm/mach-zynqmp/include/mach/hardware.h
> +++ b/arch/arm/mach-zynqmp/include/mach/hardware.h
> @@ -139,7 +139,8 @@ struct apu_regs {
>  #define ZYNQMP_SILICON_VER_SHIFT       0
>
>  struct csu_regs {
> -       u32 reserved0[4];
> +       u32 status;
> +       u32 reserved0[3];
>         u32 multi_boot;
>         u32 reserved1[11];
>         u32 idcode;
> diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
> index 1748fec2e4..b7d11630d1 100644
> --- a/board/xilinx/zynqmp/zynqmp.c
> +++ b/board/xilinx/zynqmp/zynqmp.c
> @@ -355,6 +355,18 @@ static int multi_boot(void)
>         return 0;
>  }
>
> +static void secure_boot(void)
> +{
> +       u32 status;
> +
> +       status = readl(&csu_base->status);
> +       if (status & (BIT(0) | BIT(1))) {
> +               printf("Secure Boot:\t%s%s\n",
> +                      status & BIT(0) ? "authenticated" : "not authenticated",
> +                      status & BIT(1) ? ", encrypted" : ", not encrypted");
> +       }
> +}
> +
>  #define PS_SYSMON_ANALOG_BUS_VAL       0x3210
>  #define PS_SYSMON_ANALOG_BUS_REG       0xFFA50914
>
> @@ -391,8 +403,10 @@ int board_init(void)
>         fpga_add(fpga_xilinx, &zynqmppl);
>  #endif
>
> -       if (current_el() == 3)
> +       if (current_el() == 3) {
>                 multi_boot();
> +               secure_boot();
> +       }
>
>         return 0;
>  }
> --
> 2.31.1
>

Reviewed-by: Igor Opaniuk <igor.opaniuk@foundries.io>
Jorge Ramirez-Ortiz, Foundries Aug. 11, 2021, 6:55 p.m. UTC | #2
On 22/07/21, Jorge Ramirez-Ortiz wrote:

reminder

> Confirm the secure boot configuration on the console.
> 
> Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
> ---
>  arch/arm/mach-zynqmp/include/mach/hardware.h |  3 ++-
>  board/xilinx/zynqmp/zynqmp.c                 | 16 +++++++++++++++-
>  2 files changed, 17 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/mach-zynqmp/include/mach/hardware.h b/arch/arm/mach-zynqmp/include/mach/hardware.h
> index 3776499070..3d3ffa086e 100644
> --- a/arch/arm/mach-zynqmp/include/mach/hardware.h
> +++ b/arch/arm/mach-zynqmp/include/mach/hardware.h
> @@ -139,7 +139,8 @@ struct apu_regs {
>  #define ZYNQMP_SILICON_VER_SHIFT	0
>  
>  struct csu_regs {
> -	u32 reserved0[4];
> +	u32 status;
> +	u32 reserved0[3];
>  	u32 multi_boot;
>  	u32 reserved1[11];
>  	u32 idcode;
> diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
> index 1748fec2e4..b7d11630d1 100644
> --- a/board/xilinx/zynqmp/zynqmp.c
> +++ b/board/xilinx/zynqmp/zynqmp.c
> @@ -355,6 +355,18 @@ static int multi_boot(void)
>  	return 0;
>  }
>  
> +static void secure_boot(void)
> +{
> +	u32 status;
> +
> +	status = readl(&csu_base->status);
> +	if (status & (BIT(0) | BIT(1))) {
> +		printf("Secure Boot:\t%s%s\n",
> +		       status & BIT(0) ? "authenticated" : "not authenticated",
> +		       status & BIT(1) ? ", encrypted" : ", not encrypted");
> +	}
> +}
> +
>  #define PS_SYSMON_ANALOG_BUS_VAL	0x3210
>  #define PS_SYSMON_ANALOG_BUS_REG	0xFFA50914
>  
> @@ -391,8 +403,10 @@ int board_init(void)
>  	fpga_add(fpga_xilinx, &zynqmppl);
>  #endif
>  
> -	if (current_el() == 3)
> +	if (current_el() == 3) {
>  		multi_boot();
> +		secure_boot();
> +	}
>  
>  	return 0;
>  }
> -- 
> 2.31.1
>
Michal Simek Aug. 12, 2021, 5:29 a.m. UTC | #3
On 7/22/21 1:19 PM, Jorge Ramirez-Ortiz wrote:
> Confirm the secure boot configuration on the console.
> 
> Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
> ---
>  arch/arm/mach-zynqmp/include/mach/hardware.h |  3 ++-
>  board/xilinx/zynqmp/zynqmp.c                 | 16 +++++++++++++++-
>  2 files changed, 17 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/mach-zynqmp/include/mach/hardware.h b/arch/arm/mach-zynqmp/include/mach/hardware.h
> index 3776499070..3d3ffa086e 100644
> --- a/arch/arm/mach-zynqmp/include/mach/hardware.h
> +++ b/arch/arm/mach-zynqmp/include/mach/hardware.h
> @@ -139,7 +139,8 @@ struct apu_regs {
>  #define ZYNQMP_SILICON_VER_SHIFT	0
>  
>  struct csu_regs {
> -	u32 reserved0[4];
> +	u32 status;
> +	u32 reserved0[3];
>  	u32 multi_boot;
>  	u32 reserved1[11];
>  	u32 idcode;
> diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
> index 1748fec2e4..b7d11630d1 100644
> --- a/board/xilinx/zynqmp/zynqmp.c
> +++ b/board/xilinx/zynqmp/zynqmp.c
> @@ -355,6 +355,18 @@ static int multi_boot(void)
>  	return 0;
>  }
>  
> +static void secure_boot(void)
> +{
> +	u32 status;
> +
> +	status = readl(&csu_base->status);
> +	if (status & (BIT(0) | BIT(1))) {

please create macros for these bits.

{} around are not needed.


> +		printf("Secure Boot:\t%s%s\n",
> +		       status & BIT(0) ? "authenticated" : "not authenticated",
> +		       status & BIT(1) ? ", encrypted" : ", not encrypted");

Isn't this more space efficient?
printf("Secure Boot:\t%sauthenticated, %sencrypted\n",
	       status & BIT(0) ? "" : "not ",
	       status & BIT(1) ? "" : "not ");

And as I see it is.
aarch64: (for 1/1 boards) all -33.0 rodata -17.0 spl/u-boot-spl:all
-33.0 spl/u-boot-spl:rodata -17.0 spl/u-boot-spl:text -16.0 text -16.0
            xilinx_zynqmp_virt: all -33 rodata -17 spl/u-boot-spl:all
-33 spl/u-boot-spl:rodata -17 spl/u-boot-spl:text -16 text -16
               spl-u-boot-spl: add: 0/0, grow: 0/-1 bytes: 0/-16 (-16)


> +	}
> +}
> +
>  #define PS_SYSMON_ANALOG_BUS_VAL	0x3210
>  #define PS_SYSMON_ANALOG_BUS_REG	0xFFA50914
>  
> @@ -391,8 +403,10 @@ int board_init(void)
>  	fpga_add(fpga_xilinx, &zynqmppl);
>  #endif
>  
> -	if (current_el() == 3)
> +	if (current_el() == 3) {
>  		multi_boot();
> +		secure_boot();
> +	}

Please take a look at
https://lists.denx.de/pipermail/u-boot/2021-July/456382.html
I have changed multi_boot function a little bit.

Thanks,
Michal
Jorge Ramirez-Ortiz, Foundries Aug. 27, 2021, 9:20 a.m. UTC | #4
On 12/08/21, Michal Simek wrote:
> 
> 
> On 7/22/21 1:19 PM, Jorge Ramirez-Ortiz wrote:
> > Confirm the secure boot configuration on the console.
> > 
> > Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
> > ---
> >  arch/arm/mach-zynqmp/include/mach/hardware.h |  3 ++-
> >  board/xilinx/zynqmp/zynqmp.c                 | 16 +++++++++++++++-
> >  2 files changed, 17 insertions(+), 2 deletions(-)
> > 
> > diff --git a/arch/arm/mach-zynqmp/include/mach/hardware.h b/arch/arm/mach-zynqmp/include/mach/hardware.h
> > index 3776499070..3d3ffa086e 100644
> > --- a/arch/arm/mach-zynqmp/include/mach/hardware.h
> > +++ b/arch/arm/mach-zynqmp/include/mach/hardware.h
> > @@ -139,7 +139,8 @@ struct apu_regs {
> >  #define ZYNQMP_SILICON_VER_SHIFT	0
> >  
> >  struct csu_regs {
> > -	u32 reserved0[4];
> > +	u32 status;
> > +	u32 reserved0[3];
> >  	u32 multi_boot;
> >  	u32 reserved1[11];
> >  	u32 idcode;
> > diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
> > index 1748fec2e4..b7d11630d1 100644
> > --- a/board/xilinx/zynqmp/zynqmp.c
> > +++ b/board/xilinx/zynqmp/zynqmp.c
> > @@ -355,6 +355,18 @@ static int multi_boot(void)
> >  	return 0;
> >  }
> >  
> > +static void secure_boot(void)
> > +{
> > +	u32 status;
> > +
> > +	status = readl(&csu_base->status);
> > +	if (status & (BIT(0) | BIT(1))) {
> 
> please create macros for these bits.

ok
> 
> {} around are not needed.

yep

> 
> 
> > +		printf("Secure Boot:\t%s%s\n",
> > +		       status & BIT(0) ? "authenticated" : "not authenticated",
> > +		       status & BIT(1) ? ", encrypted" : ", not encrypted");
> 
> Isn't this more space efficient?
> printf("Secure Boot:\t%sauthenticated, %sencrypted\n",
> 	       status & BIT(0) ? "" : "not ",
> 	       status & BIT(1) ? "" : "not ");
> 
> And as I see it is.
> aarch64: (for 1/1 boards) all -33.0 rodata -17.0 spl/u-boot-spl:all
> -33.0 spl/u-boot-spl:rodata -17.0 spl/u-boot-spl:text -16.0 text -16.0
>             xilinx_zynqmp_virt: all -33 rodata -17 spl/u-boot-spl:all
> -33 spl/u-boot-spl:rodata -17 spl/u-boot-spl:text -16 text -16
>                spl-u-boot-spl: add: 0/0, grow: 0/-1 bytes: 0/-16 (-16)
> 
>

ok with me

> > +	}
> > +}
> > +
> >  #define PS_SYSMON_ANALOG_BUS_VAL	0x3210
> >  #define PS_SYSMON_ANALOG_BUS_REG	0xFFA50914
> >  
> > @@ -391,8 +403,10 @@ int board_init(void)
> >  	fpga_add(fpga_xilinx, &zynqmppl);
> >  #endif
> >  
> > -	if (current_el() == 3)
> > +	if (current_el() == 3) {
> >  		multi_boot();
> > +		secure_boot();
> > +	}
> 
> Please take a look at
> https://lists.denx.de/pipermail/u-boot/2021-July/456382.html
> I have changed multi_boot function a little bit.

ok

> 
> Thanks,
> Michal
> 
> -- 
> Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
> w: www.monstr.eu p: +42-0-721842854
> Maintainer of Linux kernel - Xilinx Microblaze
> Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
> U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs
>
diff mbox series

Patch

diff --git a/arch/arm/mach-zynqmp/include/mach/hardware.h b/arch/arm/mach-zynqmp/include/mach/hardware.h
index 3776499070..3d3ffa086e 100644
--- a/arch/arm/mach-zynqmp/include/mach/hardware.h
+++ b/arch/arm/mach-zynqmp/include/mach/hardware.h
@@ -139,7 +139,8 @@  struct apu_regs {
 #define ZYNQMP_SILICON_VER_SHIFT	0
 
 struct csu_regs {
-	u32 reserved0[4];
+	u32 status;
+	u32 reserved0[3];
 	u32 multi_boot;
 	u32 reserved1[11];
 	u32 idcode;
diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
index 1748fec2e4..b7d11630d1 100644
--- a/board/xilinx/zynqmp/zynqmp.c
+++ b/board/xilinx/zynqmp/zynqmp.c
@@ -355,6 +355,18 @@  static int multi_boot(void)
 	return 0;
 }
 
+static void secure_boot(void)
+{
+	u32 status;
+
+	status = readl(&csu_base->status);
+	if (status & (BIT(0) | BIT(1))) {
+		printf("Secure Boot:\t%s%s\n",
+		       status & BIT(0) ? "authenticated" : "not authenticated",
+		       status & BIT(1) ? ", encrypted" : ", not encrypted");
+	}
+}
+
 #define PS_SYSMON_ANALOG_BUS_VAL	0x3210
 #define PS_SYSMON_ANALOG_BUS_REG	0xFFA50914
 
@@ -391,8 +403,10 @@  int board_init(void)
 	fpga_add(fpga_xilinx, &zynqmppl);
 #endif
 
-	if (current_el() == 3)
+	if (current_el() == 3) {
 		multi_boot();
+		secure_boot();
+	}
 
 	return 0;
 }