On 12/01/22 13:49, Richard W.M. Jones wrote:
> If the virtio-win ISO contains drivers for Windows 11, Windows 2019 or
> Windows 2022, and the guest matches these, then copy in the right
> drivers.  For this to work you will need libguestfs >= 1.49.8 which
> allows osinfo to be used to detect Windows versions >= 10.
> 
> Side note: virtio-win uses a mix of different path element styles.
> 
> In the exploded tree of drivers installed by the RPM:
> 
>   /usr/share/virtio-win/drivers/amd64$ ls -l
>   total 0
>   drwxr-xr-x. 2 root root 174 Nov 30 13:28 Win10
>   drwxr-xr-x. 2 root root 174 Nov 30 13:28 Win11
>   drwxr-xr-x. 2 root root 236 Nov 30 13:28 Win2008R2
>   drwxr-xr-x. 2 root root 174 Nov 30 13:28 Win2012
>   drwxr-xr-x. 2 root root 174 Nov 30 13:28 Win2012R2
>   drwxr-xr-x. 2 root root 174 Nov 30 13:28 Win2016
>   drwxr-xr-x. 2 root root 174 Nov 30 13:28 Win2019
>   drwxr-xr-x. 2 root root 174 Nov 30 13:28 Win2022
>   drwxr-xr-x. 2 root root 236 Nov 30 13:28 Win7
>   drwxr-xr-x. 2 root root 174 Nov 30 13:28 Win8
>   drwxr-xr-x. 2 root root 174 Nov 30 13:28 Win8.1
> 
> Inside the ISO:
> 
>   ><fs> ll /viostor/
>   total 28
>   dr-xr-xr-x 1 root root 2048 Jun 14  2020 2k12
>   dr-xr-xr-x 1 root root 2048 Jun 14  2020 2k12R2
>   dr-xr-xr-x 1 root root 2048 Jun 14  2020 2k16
>   dr-xr-xr-x 1 root root 2048 Jun 14  2020 2k19
>   dr-xr-xr-x 1 root root 2048 Dec 11  2021 2k22
>   dr-xr-xr-x 1 root root 2048 Jun 14  2020 2k8R2
>   dr-xr-xr-x 1 root root 2048 Jun 14  2020 w10
>   dr-xr-xr-x 1 root root 2048 Dec 11  2021 w11
>   dr-xr-xr-x 1 root root 2048 Jun 14  2020 w7
>   dr-xr-xr-x 1 root root 2048 Jun 14  2020 w8
>   dr-xr-xr-x 1 root root 2048 Jun 14  2020 w8.1
> 
> So I have matched both path elements.
> 
> Reported-by: Tingting Zheng
> Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2149811
> ---
>  convert/windows_virtio.ml | 45 +++++++++++++++++++++++----------------
>  1 file changed, 27 insertions(+), 18 deletions(-)
> 
> diff --git a/convert/windows_virtio.ml b/convert/windows_virtio.ml
> index a27cd6a543..3156694d11 100644
> --- a/convert/windows_virtio.ml
> +++ b/convert/windows_virtio.ml
> @@ -50,9 +50,9 @@ let rec install_drivers ((g, _) as reg) inspect =
>    g#mkdir_p driverdir;
>  
>    if not (copy_drivers g inspect driverdir) then (
> -      warning (f_"there are no virtio drivers available for this version of 
> Windows (%d.%d %s %s).  virt-v2v looks for drivers in %s\n\nThe guest will be 
> configured to use slower emulated devices.")
> +      warning (f_"there are no virtio drivers available for this version of 
> Windows (%d.%d %s %s %s).  virt-v2v looks for drivers in %s\n\nThe guest will 
> be configured to use slower emulated devices.")
>                inspect.i_major_version inspect.i_minor_version inspect.i_arch
> -              inspect.i_product_variant virtio_win;
> +              inspect.i_product_variant inspect.i_osinfo virtio_win;
>        (IDE, RTL8139, false, false, false, false)
>    )
>    else (
> @@ -279,7 +279,8 @@ and copy_from_virtio_win g inspect srcdir destdir filter 
> missing =
>   *)
>  and virtio_iso_path_matches_guest_os path inspect =
>    let { i_major_version = os_major; i_minor_version = os_minor;
> -        i_arch = arch; i_product_variant = os_variant } = inspect in
> +        i_arch = arch; i_product_variant = os_variant;
> +        i_osinfo = osinfo } = inspect in
>    try
>      (* Lowercased path, since the ISO may contain upper or lowercase path
>       * elements.
> @@ -300,37 +301,45 @@ and virtio_iso_path_matches_guest_os path inspect =
>  
>      let is_client os_variant = os_variant = "Client"
>      and not_client os_variant = os_variant <> "Client"
> -    and any_variant os_variant = true in
> -    let p_os_major, p_os_minor, match_os_variant =
> +    and any_variant os_variant = true
> +    and any_osinfo osinfo = true in
> +    let p_os_major, p_os_minor, match_os_variant, match_osinfo =
>        if pathelem "xp" || pathelem "winxp" then
> -        (5, 1, any_variant)
> +        (5, 1, any_variant, any_osinfo)
>        else if pathelem "2k3" || pathelem "win2003" then
> -        (5, 2, any_variant)
> +        (5, 2, any_variant, any_osinfo)
>        else if pathelem "vista" then
> -        (6, 0, is_client)
> +        (6, 0, is_client, any_osinfo)
>        else if pathelem "2k8" || pathelem "win2008" then
> -        (6, 0, not_client)
> +        (6, 0, not_client, any_osinfo)
>        else if pathelem "w7" || pathelem "win7" then
> -        (6, 1, is_client)
> +        (6, 1, is_client, any_osinfo)
>        else if pathelem "2k8r2" || pathelem "win2008r2" then
> -        (6, 1, not_client)
> +        (6, 1, not_client, any_osinfo)
>        else if pathelem "w8" || pathelem "win8" then
> -        (6, 2, is_client)
> +        (6, 2, is_client, any_osinfo)
>        else if pathelem "2k12" || pathelem "win2012" then
> -        (6, 2, not_client)
> +        (6, 2, not_client, any_osinfo)
>        else if pathelem "w8.1" || pathelem "win8.1" then
> -        (6, 3, is_client)
> +        (6, 3, is_client, any_osinfo)
>        else if pathelem "2k12r2" || pathelem "win2012r2" then
> -        (6, 3, not_client)
> +        (6, 3, not_client, any_osinfo)
>        else if pathelem "w10" || pathelem "win10" then
> -        (10, 0, is_client)
> +        (10, 0, is_client, ((=) "win10"))
> +      else if pathelem "w11" || pathelem "win11" then
> +        (10, 0, is_client, ((=) "win11"))
>        else if pathelem "2k16" || pathelem "win2016" then
> -        (10, 0, not_client)
> +        (10, 0, not_client, ((=) "win2k16"))
> +      else if pathelem "2k19" || pathelem "win2019" then
> +        (10, 0, not_client, ((=) "win2k19"))
> +      else if pathelem "2k22" || pathelem "win2022" then
> +        (10, 0, not_client, ((=) "win2k22"))
>        else
>          raise Not_found in
>  
>      arch = p_arch && os_major = p_os_major && os_minor = p_os_minor &&
> -      match_os_variant os_variant
> +    match_os_variant os_variant &&
> +    match_osinfo osinfo
>  
>    with Not_found -> false
>  
> 

I think this patch would be improved if the osinfo part were first
introduced as a pure refactoring ("any_osinfo"), and then the bugfix
were implemented in a separate patch. But, it's not a big deal, so:

Reviewed-by: Laszlo Ersek <ler...@redhat.com>
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