Re: [kvm-unit-tests RFC PATCH 5/5] configure: Ignore --erratatxt when --target=kvmtool

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On Fri, Jul 02, 2021 at 05:31:22PM +0100, Alexandru Elisei wrote:
> kvmtool runs a test using the -f/--firmware argument, which doesn't load an
> initrd, making specifying an errata file useless. Instead, configure forces
> all erratas to be enabled via the CONFIG_ERRATA_FORCE define in
> lib/config.h.
> 
> Forbid the --erratatxt option when kvm-unit-tests is configured for kvmtool
> and let the user know that all erratas are enabled by default.
> 
> Signed-off-by: Alexandru Elisei <alexandru.elisei@xxxxxxx>
> ---
> I'm not sure if printing an error is too strong here and a simple warning would
> suffice. Suggestions welcome!
> 
>  configure | 26 +++++++++++++++++++-------
>  1 file changed, 19 insertions(+), 7 deletions(-)
> 
> diff --git a/configure b/configure
> index 395c809c9c02..acd288239f80 100755
> --- a/configure
> +++ b/configure
> @@ -24,7 +24,8 @@ u32_long=
>  wa_divide=
>  target=
>  errata_force=0
> -erratatxt="$srcdir/errata.txt"
> +erratatxt_default="$srcdir/errata.txt"
> +erratatxt="_NO_FILE_4Uhere_"
>  host_key_document=
>  page_size=
>  earlycon=
> @@ -50,7 +51,8 @@ usage() {
>  	                           enable or disable the generation of a default environ when
>  	                           no environ is provided by the user (enabled by default)
>  	    --erratatxt=FILE       specify a file to use instead of errata.txt. Use
> -	                           '--erratatxt=' to ensure no file is used.
> +	                           '--erratatxt=' to ensure no file is used. This option is
> +	                           invalid for arm/arm64 when target=kvmtool.

Do we need to always specifiy arm/arm64 when talking about target=kvmtool?
How much more effort would an x86 kvmtool target be to add?

>  	    --host-key-document=HOST_KEY_DOCUMENT
>  	                           Specify the machine-specific host-key document for creating
>  	                           a PVM image with 'genprotimg' (s390x only)
> @@ -147,11 +149,6 @@ if [ -n "$host_key_document" ] && [ ! -f "$host_key_document" ]; then
>      exit 1
>  fi
>  
> -if [ "$erratatxt" ] && [ ! -f "$erratatxt" ]; then
> -    echo "erratatxt: $erratatxt does not exist or is not a regular file"
> -    exit 1
> -fi
> -
>  arch_name=$arch
>  [ "$arch" = "aarch64" ] && arch="arm64"
>  [ "$arch_name" = "arm64" ] && arch_name="aarch64"
> @@ -184,6 +181,21 @@ else
>      fi
>  fi
>  
> +if [ "$target" = "kvmtool" ]; then
> +    if [ "$erratatxt" ] && [ "$erratatxt" != "_NO_FILE_4Uhere_" ]; then
> +        echo "--erratatxt is not supported for target=kvmtool (all erratas enabled by default)"
> +        usage
> +    fi
> +else
> +    if [ "$erratatxt" = "_NO_FILE_4Uhere_" ]; then
> +        erratatxt=$erratatxt_default
> +    fi
> +    if [ "$erratatxt" ] && [ ! -f "$erratatxt" ]; then
> +        echo "erratatxt: $erratatxt does not exist or is not a regular file"
> +        exit 1
> +    fi
> +fi

switch

> +
>  [ -z "$processor" ] && processor="$arch"
>  
>  if [ "$processor" = "arm64" ]; then
> -- 
> 2.32.0
>

Otherwise looks good to me.

Thanks,
drew 




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