[PATCH] Fix to improve boot time on Emulators

[PATCH] Fix to improve boot time on Emulators

[vineeth.raveendran]

Use haveged instead of rngd (That gets added when adding ssh) since rngd
init is taking ~7 mins during boot time

Change-Id: I038c42b8a7c025959248d78940483322421ad5ef
Signed-off-by: Vineeth Raveendran <vineeth.raveendran@arm.com>
---
 meta-arm-bsp/conf/machine/foundation-armv8.conf | 5 +++++
 meta-arm-bsp/conf/machine/fvp-base.conf         | 5 +++++
 meta-arm-bsp/conf/machine/gem5-arm64.conf       | 4 ++++
 3 files changed, 14 insertions(+)

diff --git a/meta-arm-bsp/conf/machine/foundation-armv8.conf b/meta-arm-bsp/conf/machine/foundation-armv8.conf
index 9a3f43f..10d3eea 100644
--- a/meta-arm-bsp/conf/machine/foundation-armv8.conf
+++ b/meta-arm-bsp/conf/machine/foundation-armv8.conf
@@ -8,3 +8,8 @@ require conf/machine/fvp-common/fvp.inc
 
 KERNEL_DEVICETREE = "arm/foundation-v8-gicv3-psci.dtb"
 EXTRA_IMAGEDEPENDS += "foundation-armv8-native"
+
+# Use haveged as a source of entropy instead of rng-tools (Needed for ssh).
+# rngd (Part of rng-tools) takes ~7 mins to init resulting in a slow boot time.
+PACKAGE_EXCLUDE_append = " rng-tools"
+IMAGE_INSTALL_append = " haveged"
diff --git a/meta-arm-bsp/conf/machine/fvp-base.conf b/meta-arm-bsp/conf/machine/fvp-base.conf
index 5592dc1..4c79250 100644
--- a/meta-arm-bsp/conf/machine/fvp-base.conf
+++ b/meta-arm-bsp/conf/machine/fvp-base.conf
@@ -8,3 +8,8 @@ require conf/machine/fvp-common/fvp.inc
 
 KERNEL_DEVICETREE = "arm/fvp-base-gicv3-psci-custom.dtb"
 EXTRA_IMAGEDEPENDS += "fvp-base-native"
+
+# Use haveged as a source of entropy instead of rng-tools (Needed for ssh).
+# rngd (Part of rng-tools) takes ~7 mins to init resulting in a slow boot time.
+PACKAGE_EXCLUDE_append = " rng-tools"
+IMAGE_INSTALL_append = " haveged"
diff --git a/meta-arm-bsp/conf/machine/gem5-arm64.conf b/meta-arm-bsp/conf/machine/gem5-arm64.conf
index 54f7ede..4775940 100644
--- a/meta-arm-bsp/conf/machine/gem5-arm64.conf
+++ b/meta-arm-bsp/conf/machine/gem5-arm64.conf
@@ -56,3 +56,7 @@ XEN_CONFIG_EARLY_PRINTK = "vexpress"
 BOOT_WRAPPER_AARCH64_XEN_CMDLINE = "noreboot dom0_mem=256M console=dtuart \
     dtuart=/uart@1c090000 bootscrub=0"
 
+# Use haveged as a source of entropy instead of rng-tools (Needed for ssh).
+# rngd (Part of rng-tools) takes ~7 mins to init resulting in a slow boot time.
+PACKAGE_EXCLUDE_append = " rng-tools"
+IMAGE_INSTALL_append = " haveged"
-- 
2.17.1

Re: [meta-arm] [PATCH] Fix to improve boot time on Emulators

[Jon Mason]

On Tue, Feb 4, 2020 at 4:26 PM Vineeth Raveendran
<vineeth.raveendran@arm.com> wrote:
>
> Use haveged instead of rngd (That gets added when adding ssh) since rngd
> init is taking ~7 mins during boot time

The patch has been accepted and pushed to the master branch of
meta-arm.  Thank you for doing this work.

Thanks,
Jon

>
> Change-Id: I038c42b8a7c025959248d78940483322421ad5ef
> Signed-off-by: Vineeth Raveendran <vineeth.raveendran@arm.com>
> ---
>  meta-arm-bsp/conf/machine/foundation-armv8.conf | 5 +++++
>  meta-arm-bsp/conf/machine/fvp-base.conf         | 5 +++++
>  meta-arm-bsp/conf/machine/gem5-arm64.conf       | 4 ++++
>  3 files changed, 14 insertions(+)
>
> diff --git a/meta-arm-bsp/conf/machine/foundation-armv8.conf b/meta-arm-bsp/conf/machine/foundation-armv8.conf
> index 9a3f43f..10d3eea 100644
> --- a/meta-arm-bsp/conf/machine/foundation-armv8.conf
> +++ b/meta-arm-bsp/conf/machine/foundation-armv8.conf
> @@ -8,3 +8,8 @@ require conf/machine/fvp-common/fvp.inc
>
>  KERNEL_DEVICETREE = "arm/foundation-v8-gicv3-psci.dtb"
>  EXTRA_IMAGEDEPENDS += "foundation-armv8-native"
> +
> +# Use haveged as a source of entropy instead of rng-tools (Needed for ssh).
> +# rngd (Part of rng-tools) takes ~7 mins to init resulting in a slow boot time.
> +PACKAGE_EXCLUDE_append = " rng-tools"
> +IMAGE_INSTALL_append = " haveged"
> diff --git a/meta-arm-bsp/conf/machine/fvp-base.conf b/meta-arm-bsp/conf/machine/fvp-base.conf
> index 5592dc1..4c79250 100644
> --- a/meta-arm-bsp/conf/machine/fvp-base.conf
> +++ b/meta-arm-bsp/conf/machine/fvp-base.conf
> @@ -8,3 +8,8 @@ require conf/machine/fvp-common/fvp.inc
>
>  KERNEL_DEVICETREE = "arm/fvp-base-gicv3-psci-custom.dtb"
>  EXTRA_IMAGEDEPENDS += "fvp-base-native"
> +
> +# Use haveged as a source of entropy instead of rng-tools (Needed for ssh).
> +# rngd (Part of rng-tools) takes ~7 mins to init resulting in a slow boot time.
> +PACKAGE_EXCLUDE_append = " rng-tools"
> +IMAGE_INSTALL_append = " haveged"
> diff --git a/meta-arm-bsp/conf/machine/gem5-arm64.conf b/meta-arm-bsp/conf/machine/gem5-arm64.conf
> index 54f7ede..4775940 100644
> --- a/meta-arm-bsp/conf/machine/gem5-arm64.conf
> +++ b/meta-arm-bsp/conf/machine/gem5-arm64.conf
> @@ -56,3 +56,7 @@ XEN_CONFIG_EARLY_PRINTK = "vexpress"
>  BOOT_WRAPPER_AARCH64_XEN_CMDLINE = "noreboot dom0_mem=256M console=dtuart \
>      dtuart=/uart@1c090000 bootscrub=0"
>
> +# Use haveged as a source of entropy instead of rng-tools (Needed for ssh).
> +# rngd (Part of rng-tools) takes ~7 mins to init resulting in a slow boot time.
> +PACKAGE_EXCLUDE_append = " rng-tools"
> +IMAGE_INSTALL_append = " haveged"
> --
> 2.17.1
>
>