[Xen-devel] [PATCH 1/2] Fix util/grub.d/20_linux_xen.in: Add xen_boot command support for aarch64

2017-08-28 Thread Konrad Rzeszutek Wilk
Commit d33045ce7ffcb7c1e4a60c14d5ca64b36e3c5abe introduced
the support for this, but it does not work under x86 (as it stops
20_linux_xen from running).

The 20_linux_xen is run under a shell and any exits from within it:

(For example on x86):
+ /usr/bin/grub2-file --is-arm64-efi /boot/xen-4.9.0.gz
[root@tst063 grub]# echo $?
1

will result in 20_linux_xen exciting without continuing
and also causing grub2-mkconfig to stop processing.

As in:

[root@tst063 ~]#

And no more.

This patch wraps the invocation of grub-file to be a in subshell
and to process the return value in a conditional. That fixes
the issue.

RH-BZ 1486002: grub2-mkconfig does not work if xen.gz is installed.
CC: Fu Wei 
Signed-off-by: Konrad Rzeszutek Wilk 
---
 util/grub.d/20_linux_xen.in | 9 -
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in
index c002fc9..083bcef 100644
--- a/util/grub.d/20_linux_xen.in
+++ b/util/grub.d/20_linux_xen.in
@@ -206,13 +206,12 @@ while [ "x${xen_list}" != "x" ] ; do
 if [ "x$is_top_level" != xtrue ]; then
echo "  submenu '$(gettext_printf "Xen hypervisor, version %s" 
"${xen_version}" | grub_quote)' \$menuentry_id_option 
'xen-hypervisor-$xen_version-$boot_device_id' {"
 fi
-$grub_file --is-arm64-efi $current_xen
-if [ $? -ne 0 ]; then
-   xen_loader="multiboot"
-   module_loader="module"
-else
+if ($grub_file --is-arm64-efi $current_xen); then
xen_loader="xen_hypervisor"
module_loader="xen_module"
+else
+   xen_loader="multiboot"
+   module_loader="module"
 fi
 while [ "x$list" != "x" ] ; do
linux=`version_find_latest $list`
-- 
2.1.4


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Re: [Xen-devel] [PATCH 1/2] Fix util/grub.d/20_linux_xen.in: Add xen_boot command support for aarch64

2017-08-28 Thread Konrad Rzeszutek Wilk
On Mon, Aug 28, 2017 at 02:40:14PM -0400, Konrad Rzeszutek Wilk wrote:
> Commit d33045ce7ffcb7c1e4a60c14d5ca64b36e3c5abe introduced
> the support for this, but it does not work under x86 (as it stops
> 20_linux_xen from running).
> 
> The 20_linux_xen is run under a shell and any exits from within it:
> 
> (For example on x86):
> + /usr/bin/grub2-file --is-arm64-efi /boot/xen-4.9.0.gz
> [root@tst063 grub]# echo $?
> 1
> 
> will result in 20_linux_xen exciting without continuing
> and also causing grub2-mkconfig to stop processing.
> 
> As in:

git format-patch decided to eat this relevant part:

[root@tst063 grub]# ./grub-mkconfig | tail
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.13.0-0.rc5.git1.1.fc27.x86_64
Found initrd image: /boot/initramfs-4.13.0-0.rc5.git1.1.fc27.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-ec082ee24aea41b9b16aca52a6d10cc2
Found initrd image: 
/boot/initramfs-0-rescue-ec082ee24aea41b9b16aca52a6d10cc2.img
echo'Loading Linux 
0-rescue-ec082ee24aea41b9b16aca52a6d10cc2 ...'
linux   /vmlinuz-0-rescue-ec082ee24aea41b9b16aca52a6d10cc2 
root=/dev/mapper/fedora_tst063-root ro single 
echo'Loading initial ramdisk ...'
initrd  /initramfs-0-rescue-ec082ee24aea41b9b16aca52a6d10cc2.img
}
}

### END /usr/local/etc/grub.d/10_linux ###

### BEGIN /usr/local/etc/grub.d/20_linux_xen ###

root@tst063 grub]# 

> 
> [root@tst063 ~]#
> 
> And no more.
> 
> This patch wraps the invocation of grub-file to be a in subshell
> and to process the return value in a conditional. That fixes
> the issue.
> 
> RH-BZ 1486002: grub2-mkconfig does not work if xen.gz is installed.
> CC: Fu Wei 
> Signed-off-by: Konrad Rzeszutek Wilk 
> ---
>  util/grub.d/20_linux_xen.in | 9 -
>  1 file changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in
> index c002fc9..083bcef 100644
> --- a/util/grub.d/20_linux_xen.in
> +++ b/util/grub.d/20_linux_xen.in
> @@ -206,13 +206,12 @@ while [ "x${xen_list}" != "x" ] ; do
>  if [ "x$is_top_level" != xtrue ]; then
>   echo "  submenu '$(gettext_printf "Xen hypervisor, version %s" 
> "${xen_version}" | grub_quote)' \$menuentry_id_option 
> 'xen-hypervisor-$xen_version-$boot_device_id' {"
>  fi
> -$grub_file --is-arm64-efi $current_xen
> -if [ $? -ne 0 ]; then
> - xen_loader="multiboot"
> - module_loader="module"
> -else
> +if ($grub_file --is-arm64-efi $current_xen); then
>   xen_loader="xen_hypervisor"
>   module_loader="xen_module"
> +else
> + xen_loader="multiboot"
> + module_loader="module"
>  fi
>  while [ "x$list" != "x" ] ; do
>   linux=`version_find_latest $list`
> -- 
> 2.1.4
> 

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Re: [Xen-devel] [PATCH 1/2] Fix util/grub.d/20_linux_xen.in: Add xen_boot command support for aarch64

2017-08-29 Thread Fu Wei Fu
Hi  Konrad,

Thanks for your feedback.

On 29 August 2017 at 02:40, Konrad Rzeszutek Wilk
 wrote:
> Commit d33045ce7ffcb7c1e4a60c14d5ca64b36e3c5abe introduced
> the support for this, but it does not work under x86 (as it stops
> 20_linux_xen from running).
>
> The 20_linux_xen is run under a shell and any exits from within it:
>

For your example

> (For example on x86):
> + /usr/bin/grub2-file --is-arm64-efi /boot/xen-4.9.0.gz
> [root@tst063 grub]# echo $?
> 1

I guess that is right behavior, then
  xen_loader="multiboot"
   module_loader="module"

 /boot/xen-4.9.0.gz is a xen binary for x86, right?

>
> will result in 20_linux_xen exciting without continuing
> and also causing grub2-mkconfig to stop processing.

maybe we are using different shell?  are you using ash?

>
> As in:
>
> [root@tst063 ~]#
>
> And no more.
>
> This patch wraps the invocation of grub-file to be a in subshell
> and to process the return value in a conditional. That fixes
> the issue.
>
> RH-BZ 1486002: grub2-mkconfig does not work if xen.gz is installed.
> CC: Fu Wei 
> Signed-off-by: Konrad Rzeszutek Wilk 
> ---
>  util/grub.d/20_linux_xen.in | 9 -
>  1 file changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in
> index c002fc9..083bcef 100644
> --- a/util/grub.d/20_linux_xen.in
> +++ b/util/grub.d/20_linux_xen.in
> @@ -206,13 +206,12 @@ while [ "x${xen_list}" != "x" ] ; do
>  if [ "x$is_top_level" != xtrue ]; then
> echo "  submenu '$(gettext_printf "Xen hypervisor, version %s" 
> "${xen_version}" | grub_quote)' \$menuentry_id_option 
> 'xen-hypervisor-$xen_version-$boot_device_id' {"
>  fi
> -$grub_file --is-arm64-efi $current_xen
> -if [ $? -ne 0 ]; then
> -   xen_loader="multiboot"
> -   module_loader="module"
> -else
> +if ($grub_file --is-arm64-efi $current_xen); then
> xen_loader="xen_hypervisor"
> module_loader="xen_module"
> +else
> +   xen_loader="multiboot"
> +   module_loader="module"
>  fi
>  while [ "x$list" != "x" ] ; do
> linux=`version_find_latest $list`
> --
> 2.1.4
>



-- 
Best regards,

Fu Wei
Software Engineer
Red Hat

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Re: [Xen-devel] [PATCH 1/2] Fix util/grub.d/20_linux_xen.in: Add xen_boot command support for aarch64

2017-08-29 Thread Konrad Rzeszutek Wilk
On Tue, Aug 29, 2017 at 03:12:59PM +0800, Fu Wei Fu wrote:
> Hi  Konrad,
> 
> Thanks for your feedback.

Thank you for speedy response!
> 
> On 29 August 2017 at 02:40, Konrad Rzeszutek Wilk
>  wrote:
> > Commit d33045ce7ffcb7c1e4a60c14d5ca64b36e3c5abe introduced
> > the support for this, but it does not work under x86 (as it stops
> > 20_linux_xen from running).
> >
> > The 20_linux_xen is run under a shell and any exits from within it:
> >
> 
> For your example
> 
> > (For example on x86):
> > + /usr/bin/grub2-file --is-arm64-efi /boot/xen-4.9.0.gz
> > [root@tst063 grub]# echo $?
> > 1
> 
> I guess that is right behavior, then
>   xen_loader="multiboot"
>module_loader="module"
> 
>  /boot/xen-4.9.0.gz is a xen binary for x86, right?

Correct. I also tested it with an xen.efi which was built for ARM (I copied
it in /boot/ directroy), and it created an proper entry for it:

xen_hypervisor  /xen.efi placeholder dom0_max_vcpus=2 dom0_mem=max:2G 
loglvl=all guest_loglvl=all console=com1 com1=115200,8n1 iommu=verbose,debug 
scan=ucode conring_size=2097152  ${xen_rm_opts}

en_module  /vmlinuz-4.13.0-0.rc5.git1.1.fc27.x86_64 placeholder 
root=/dev/mapper/fedora_tst063-root ro rd.lvm.lv=fedora_tst063/root 
rd.lvm.lv=fedora_tst063/swap loglevel=8 console=hvc0

...

Naturally I didn't try to boot it as it would most surely not work.
> 
> >
> > will result in 20_linux_xen exciting without continuing
> > and also causing grub2-mkconfig to stop processing.
> 
> maybe we are using different shell?  are you using ash?


[root@tst063 fedora]# head -2 `which grub2-mkconfig` 
#! /bin/sh
set -e

And the upstream grub shows:

[root@tst063 grub]# head -2 ./util/grub-mkconfig.in
#! /bin/sh
set -e


I am assuming you are using ARM, in which case I would recommend you
just copy xen.gz (compiled for x86) in your /boot directory. You should
get a similar failure condition as I got.

> 
> >
> > As in:
> >
> > [root@tst063 ~]#
> >
> > And no more.
> >
> > This patch wraps the invocation of grub-file to be a in subshell
> > and to process the return value in a conditional. That fixes
> > the issue.
> >
> > RH-BZ 1486002: grub2-mkconfig does not work if xen.gz is installed.
> > CC: Fu Wei 
> > Signed-off-by: Konrad Rzeszutek Wilk 
> > ---
> >  util/grub.d/20_linux_xen.in | 9 -
> >  1 file changed, 4 insertions(+), 5 deletions(-)
> >
> > diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in
> > index c002fc9..083bcef 100644
> > --- a/util/grub.d/20_linux_xen.in
> > +++ b/util/grub.d/20_linux_xen.in
> > @@ -206,13 +206,12 @@ while [ "x${xen_list}" != "x" ] ; do
> >  if [ "x$is_top_level" != xtrue ]; then
> > echo "  submenu '$(gettext_printf "Xen hypervisor, version %s" 
> > "${xen_version}" | grub_quote)' \$menuentry_id_option 
> > 'xen-hypervisor-$xen_version-$boot_device_id' {"
> >  fi
> > -$grub_file --is-arm64-efi $current_xen
> > -if [ $? -ne 0 ]; then
> > -   xen_loader="multiboot"
> > -   module_loader="module"
> > -else
> > +if ($grub_file --is-arm64-efi $current_xen); then
> > xen_loader="xen_hypervisor"
> > module_loader="xen_module"
> > +else
> > +   xen_loader="multiboot"
> > +   module_loader="module"
> >  fi
> >  while [ "x$list" != "x" ] ; do
> > linux=`version_find_latest $list`
> > --
> > 2.1.4
> >
> 
> 
> 
> -- 
> Best regards,
> 
> Fu Wei
> Software Engineer
> Red Hat

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Re: [Xen-devel] [PATCH 1/2] Fix util/grub.d/20_linux_xen.in: Add xen_boot command support for aarch64

2017-08-29 Thread Daniel Kiper
On Mon, Aug 28, 2017 at 02:42:18PM -0400, Konrad Rzeszutek Wilk wrote:
> On Mon, Aug 28, 2017 at 02:40:14PM -0400, Konrad Rzeszutek Wilk wrote:
> > Commit d33045ce7ffcb7c1e4a60c14d5ca64b36e3c5abe introduced
> > the support for this, but it does not work under x86 (as it stops
> > 20_linux_xen from running).
> >
> > The 20_linux_xen is run under a shell and any exits from within it:
> >
> > (For example on x86):
> > + /usr/bin/grub2-file --is-arm64-efi /boot/xen-4.9.0.gz
> > [root@tst063 grub]# echo $?
> > 1
> >
> > will result in 20_linux_xen exciting without continuing

s/exciting/exiting/?

> > and also causing grub2-mkconfig to stop processing.
> >
> > As in:
>
> git format-patch decided to eat this relevant part:
>
> [root@tst063 grub]# ./grub-mkconfig | tail
> Generating grub configuration file ...
> Found linux image: /boot/vmlinuz-4.13.0-0.rc5.git1.1.fc27.x86_64
> Found initrd image: /boot/initramfs-4.13.0-0.rc5.git1.1.fc27.x86_64.img
> Found linux image: /boot/vmlinuz-0-rescue-ec082ee24aea41b9b16aca52a6d10cc2
> Found initrd image: 
> /boot/initramfs-0-rescue-ec082ee24aea41b9b16aca52a6d10cc2.img
>   echo'Loading Linux 
> 0-rescue-ec082ee24aea41b9b16aca52a6d10cc2 ...'
>   linux   /vmlinuz-0-rescue-ec082ee24aea41b9b16aca52a6d10cc2 
> root=/dev/mapper/fedora_tst063-root ro single
>   echo'Loading initial ramdisk ...'
>   initrd  /initramfs-0-rescue-ec082ee24aea41b9b16aca52a6d10cc2.img
>   }
> }
>
> ### END /usr/local/etc/grub.d/10_linux ###
>
> ### BEGIN /usr/local/etc/grub.d/20_linux_xen ###
>
> root@tst063 grub]#

In general LGTM. Though please repost this patch with full commit message?

Daniel

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