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* [Qemu-devel] [GIT PULL for qemu-pseries] spapr: Render full FDT on ibm, client-architecture-support
@ 2019-08-27  6:56 Alexey Kardashevskiy
  2019-08-28  0:46 ` David Gibson
  0 siblings, 1 reply; 7+ messages in thread
From: Alexey Kardashevskiy @ 2019-08-27  6:56 UTC (permalink / raw)
  To: David Gibson; +Cc: Alexey Kardashevskiy, qemu-ppc, qemu-devel

The following changes since commit d6bb8b27204eaa58f1da948b65454e3a598ab2a4:

  pseries: Update SLOF firmware image (2019-08-27 16:47:04 +1000)

are available in the Git repository at:

  git@github.com:aik/qemu.git tags/qemu-slof-20190827

for you to fetch changes up to da9960a5aaa25d27c9798c3d94c7b4c2d8af31ac:

  spapr: Render full FDT on ibm,client-architecture-support (2019-08-27 16:47:46 +1000)

----------------------------------------------------------------
Alexey Kardashevskiy (1):
      spapr: Render full FDT on ibm,client-architecture-support

 hw/ppc/spapr.c | 90 +++++++---------------------------------------------------
 1 file changed, 10 insertions(+), 80 deletions(-)


*** Note: this is not for master, this is for pseries


^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [Qemu-devel] [GIT PULL for qemu-pseries] spapr: Render full FDT on ibm, client-architecture-support
  2019-08-27  6:56 [Qemu-devel] [GIT PULL for qemu-pseries] spapr: Render full FDT on ibm, client-architecture-support Alexey Kardashevskiy
@ 2019-08-28  0:46 ` David Gibson
  2019-08-28  2:12   ` David Gibson
  0 siblings, 1 reply; 7+ messages in thread
From: David Gibson @ 2019-08-28  0:46 UTC (permalink / raw)
  To: Alexey Kardashevskiy; +Cc: qemu-ppc, qemu-devel

[-- Attachment #1: Type: text/plain, Size: 1100 bytes --]

On Tue, Aug 27, 2019 at 04:56:50PM +1000, Alexey Kardashevskiy wrote:
> The following changes since commit d6bb8b27204eaa58f1da948b65454e3a598ab2a4:
> 
>   pseries: Update SLOF firmware image (2019-08-27 16:47:04 +1000)
> 
> are available in the Git repository at:
> 
>   git@github.com:aik/qemu.git tags/qemu-slof-20190827
> 
> for you to fetch changes up to da9960a5aaa25d27c9798c3d94c7b4c2d8af31ac:
> 
>   spapr: Render full FDT on ibm,client-architecture-support (2019-08-27 16:47:46 +1000)
> 
> ----------------------------------------------------------------
> Alexey Kardashevskiy (1):
>       spapr: Render full FDT on ibm,client-architecture-support
> 
>  hw/ppc/spapr.c | 90 +++++++---------------------------------------------------
>  1 file changed, 10 insertions(+), 80 deletions(-)
> 
> 
> *** Note: this is not for master, this is for pseries
> 

Merged, thanks.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [Qemu-devel] [GIT PULL for qemu-pseries] spapr: Render full FDT on ibm, client-architecture-support
  2019-08-28  0:46 ` David Gibson
@ 2019-08-28  2:12   ` David Gibson
  2019-08-28  3:27     ` Alexey Kardashevskiy
  0 siblings, 1 reply; 7+ messages in thread
From: David Gibson @ 2019-08-28  2:12 UTC (permalink / raw)
  To: Alexey Kardashevskiy; +Cc: qemu-ppc, qemu-devel

[-- Attachment #1: Type: text/plain, Size: 1396 bytes --]

On Wed, Aug 28, 2019 at 10:46:34AM +1000, David Gibson wrote:
> On Tue, Aug 27, 2019 at 04:56:50PM +1000, Alexey Kardashevskiy wrote:
> > The following changes since commit d6bb8b27204eaa58f1da948b65454e3a598ab2a4:
> > 
> >   pseries: Update SLOF firmware image (2019-08-27 16:47:04 +1000)
> > 
> > are available in the Git repository at:
> > 
> >   git@github.com:aik/qemu.git tags/qemu-slof-20190827
> > 
> > for you to fetch changes up to da9960a5aaa25d27c9798c3d94c7b4c2d8af31ac:
> > 
> >   spapr: Render full FDT on ibm,client-architecture-support (2019-08-27 16:47:46 +1000)
> > 
> > ----------------------------------------------------------------
> > Alexey Kardashevskiy (1):
> >       spapr: Render full FDT on ibm,client-architecture-support
> > 
> >  hw/ppc/spapr.c | 90 +++++++---------------------------------------------------
> >  1 file changed, 10 insertions(+), 80 deletions(-)
> > 
> > 
> > *** Note: this is not for master, this is for pseries
> > 
> 
> Merged, thanks.

Urgh.  And the qemu change is now un-merged.  Alas, as soon as we had
a CAS reboot for XIVE the guest didn't boot on the second attempt.
Haven't had a chance to investigate yet.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [Qemu-devel] [GIT PULL for qemu-pseries] spapr: Render full FDT on ibm, client-architecture-support
  2019-08-28  2:12   ` David Gibson
@ 2019-08-28  3:27     ` Alexey Kardashevskiy
  2019-08-28  5:57       ` David Gibson
  0 siblings, 1 reply; 7+ messages in thread
From: Alexey Kardashevskiy @ 2019-08-28  3:27 UTC (permalink / raw)
  To: David Gibson; +Cc: qemu-ppc, qemu-devel



On 28/08/2019 12:12, David Gibson wrote:
> On Wed, Aug 28, 2019 at 10:46:34AM +1000, David Gibson wrote:
>> On Tue, Aug 27, 2019 at 04:56:50PM +1000, Alexey Kardashevskiy wrote:
>>> The following changes since commit d6bb8b27204eaa58f1da948b65454e3a598ab2a4:
>>>
>>>    pseries: Update SLOF firmware image (2019-08-27 16:47:04 +1000)
>>>
>>> are available in the Git repository at:
>>>
>>>    git@github.com:aik/qemu.git tags/qemu-slof-20190827
>>>
>>> for you to fetch changes up to da9960a5aaa25d27c9798c3d94c7b4c2d8af31ac:
>>>
>>>    spapr: Render full FDT on ibm,client-architecture-support (2019-08-27 16:47:46 +1000)
>>>
>>> ----------------------------------------------------------------
>>> Alexey Kardashevskiy (1):
>>>        spapr: Render full FDT on ibm,client-architecture-support
>>>
>>>   hw/ppc/spapr.c | 90 +++++++---------------------------------------------------
>>>   1 file changed, 10 insertions(+), 80 deletions(-)
>>>
>>>
>>> *** Note: this is not for master, this is for pseries
>>>
>>
>> Merged, thanks.
> 
> Urgh.  And the qemu change is now un-merged.  Alas, as soon as we had
> a CAS reboot for XIVE the guest didn't boot on the second attempt.
> Haven't had a chance to investigate yet.

QEMU command line, guest kernel version? I'd give it a try.



-- 
Alexey


^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [Qemu-devel] [GIT PULL for qemu-pseries] spapr: Render full FDT on ibm, client-architecture-support
  2019-08-28  3:27     ` Alexey Kardashevskiy
@ 2019-08-28  5:57       ` David Gibson
  2019-08-28  9:50         ` [Qemu-devel] [Qemu-ppc] " Greg Kurz
  0 siblings, 1 reply; 7+ messages in thread
From: David Gibson @ 2019-08-28  5:57 UTC (permalink / raw)
  To: Alexey Kardashevskiy; +Cc: qemu-ppc, qemu-devel

[-- Attachment #1: Type: text/plain, Size: 4074 bytes --]

On Wed, Aug 28, 2019 at 01:27:35PM +1000, Alexey Kardashevskiy wrote:
> 
> 
> On 28/08/2019 12:12, David Gibson wrote:
> > On Wed, Aug 28, 2019 at 10:46:34AM +1000, David Gibson wrote:
> > > On Tue, Aug 27, 2019 at 04:56:50PM +1000, Alexey Kardashevskiy wrote:
> > > > The following changes since commit d6bb8b27204eaa58f1da948b65454e3a598ab2a4:
> > > > 
> > > >    pseries: Update SLOF firmware image (2019-08-27 16:47:04 +1000)
> > > > 
> > > > are available in the Git repository at:
> > > > 
> > > >    git@github.com:aik/qemu.git tags/qemu-slof-20190827
> > > > 
> > > > for you to fetch changes up to da9960a5aaa25d27c9798c3d94c7b4c2d8af31ac:
> > > > 
> > > >    spapr: Render full FDT on ibm,client-architecture-support (2019-08-27 16:47:46 +1000)
> > > > 
> > > > ----------------------------------------------------------------
> > > > Alexey Kardashevskiy (1):
> > > >        spapr: Render full FDT on ibm,client-architecture-support
> > > > 
> > > >   hw/ppc/spapr.c | 90 +++++++---------------------------------------------------
> > > >   1 file changed, 10 insertions(+), 80 deletions(-)
> > > > 
> > > > 
> > > > *** Note: this is not for master, this is for pseries
> > > > 
> > > 
> > > Merged, thanks.
> > 
> > Urgh.  And the qemu change is now un-merged.  Alas, as soon as we had
> > a CAS reboot for XIVE the guest didn't boot on the second attempt.
> > Haven't had a chance to investigate yet.
> 
> QEMU command line, guest kernel version? I'd give it a try.

RHEL8.1 in guest and host, booting via GRUB into a XIVE capable
kernel.

I've now been able to investigate, dumping the dtb at H_UPDATE_DT
time.  Comparing before and after the fully-render-dt change, I get:

@@ -24,13 +24,13 @@
        };
 
        chosen {
-               bootargs = "BOOT_IMAGE=/vmlinuz-4.18.0-137.el8.ppc64le root=/dev/mapper/rhel-root ro crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap";
+               bootargs = [00];
                bootpath = "/pci@800000020000000/scsi@0";
                cpu = <0xe45ee80>;
                ibm,arch-vec-5-platform-support = <0x17801880 0x19001a40>;
                ibm,architecture-vec-5 = [19 00 20 00 00 80 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80 40 40 00 40];
-               linux,initrd-end = <0x00 0x588ed7d>;
-               linux,initrd-start = <0x00 0x3c00000>;
+               linux,initrd-end = <0x00>;
+               linux,initrd-start = <0x00>;
                linux,pci-probe-only = <0x00>;
                linux,stdout-package = <0xe733a70>;
                linux,stdout-path = "/vdevice/vty@71000001";
@@ -252,7 +252,7 @@
                used-by-rtas;
 
                ethernet@1 {
-                       assigned-addresses = <0x82000830 0x00 0x80040000 0x00 0x40000 0x81000810 0x00 0x100 0x00 0x20 0x82000814 0x00 0x80010000 0x00 0x1000 0xc3000820 0x2100 0x10000 0x00 0x4000>;
+                       assigned-addresses;
                        cache-line-size = <0x00>;
                        class-code = <0x20000>;
                        device-id = <0x1000>;
@@ -274,7 +274,7 @@
                };
 
                scsi@0 {
-                       assigned-addresses = <0x81000010 0x00 0x80 0x00 0x80 0x82000014 0x00 0x80000000 0x00 0x1000 0xc3000020 0x2100 0x00 0x00 0x4000>;
+                       assigned-addresses;
                        cache-line-size = <0x00>;
                        class-code = <0x10000>;
                        device-id = <0x1001>;

So basically the bootargs, initrd params and assigned-addresses have
been lost.

For bootargs and initrd, I think what's happening is that because qemu
isn't setting those (with no -kernel parameter) SLOF is creating them,
but they're now being overwritten by qemu's post-CAS DT.

I'm not sure what's going on with assigned-addresses.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [Qemu-devel] [Qemu-ppc] [GIT PULL for qemu-pseries] spapr: Render full FDT on ibm, client-architecture-support
  2019-08-28  5:57       ` David Gibson
@ 2019-08-28  9:50         ` Greg Kurz
  2019-08-29  0:00           ` David Gibson
  0 siblings, 1 reply; 7+ messages in thread
From: Greg Kurz @ 2019-08-28  9:50 UTC (permalink / raw)
  To: David Gibson; +Cc: Alexey Kardashevskiy, qemu-ppc, qemu-devel

[-- Attachment #1: Type: text/plain, Size: 4254 bytes --]

On Wed, 28 Aug 2019 15:57:40 +1000
David Gibson <david@gibson.dropbear.id.au> wrote:

> On Wed, Aug 28, 2019 at 01:27:35PM +1000, Alexey Kardashevskiy wrote:
> > 
> > 
> > On 28/08/2019 12:12, David Gibson wrote:
> > > On Wed, Aug 28, 2019 at 10:46:34AM +1000, David Gibson wrote:
> > > > On Tue, Aug 27, 2019 at 04:56:50PM +1000, Alexey Kardashevskiy wrote:
> > > > > The following changes since commit d6bb8b27204eaa58f1da948b65454e3a598ab2a4:
> > > > > 
> > > > >    pseries: Update SLOF firmware image (2019-08-27 16:47:04 +1000)
> > > > > 
> > > > > are available in the Git repository at:
> > > > > 
> > > > >    git@github.com:aik/qemu.git tags/qemu-slof-20190827
> > > > > 
> > > > > for you to fetch changes up to da9960a5aaa25d27c9798c3d94c7b4c2d8af31ac:
> > > > > 
> > > > >    spapr: Render full FDT on ibm,client-architecture-support (2019-08-27 16:47:46 +1000)
> > > > > 
> > > > > ----------------------------------------------------------------
> > > > > Alexey Kardashevskiy (1):
> > > > >        spapr: Render full FDT on ibm,client-architecture-support
> > > > > 
> > > > >   hw/ppc/spapr.c | 90 +++++++---------------------------------------------------
> > > > >   1 file changed, 10 insertions(+), 80 deletions(-)
> > > > > 
> > > > > 
> > > > > *** Note: this is not for master, this is for pseries
> > > > > 
> > > > 
> > > > Merged, thanks.
> > > 
> > > Urgh.  And the qemu change is now un-merged.  Alas, as soon as we had
> > > a CAS reboot for XIVE the guest didn't boot on the second attempt.
> > > Haven't had a chance to investigate yet.
> > 
> > QEMU command line, guest kernel version? I'd give it a try.
> 
> RHEL8.1 in guest and host, booting via GRUB into a XIVE capable
> kernel.
> 
> I've now been able to investigate, dumping the dtb at H_UPDATE_DT
> time.

FWIW I sent a patch to do just that some times ago:

https://patchwork.ozlabs.org/patch/1095705/

>  Comparing before and after the fully-render-dt change, I get:
> 
> @@ -24,13 +24,13 @@
>         };
>  
>         chosen {
> -               bootargs = "BOOT_IMAGE=/vmlinuz-4.18.0-137.el8.ppc64le root=/dev/mapper/rhel-root ro crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap";
> +               bootargs = [00];
>                 bootpath = "/pci@800000020000000/scsi@0";
>                 cpu = <0xe45ee80>;
>                 ibm,arch-vec-5-platform-support = <0x17801880 0x19001a40>;
>                 ibm,architecture-vec-5 = [19 00 20 00 00 80 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80 40 40 00 40];
> -               linux,initrd-end = <0x00 0x588ed7d>;
> -               linux,initrd-start = <0x00 0x3c00000>;
> +               linux,initrd-end = <0x00>;
> +               linux,initrd-start = <0x00>;
>                 linux,pci-probe-only = <0x00>;
>                 linux,stdout-package = <0xe733a70>;
>                 linux,stdout-path = "/vdevice/vty@71000001";
> @@ -252,7 +252,7 @@
>                 used-by-rtas;
>  
>                 ethernet@1 {
> -                       assigned-addresses = <0x82000830 0x00 0x80040000 0x00 0x40000 0x81000810 0x00 0x100 0x00 0x20 0x82000814 0x00 0x80010000 0x00 0x1000 0xc3000820 0x2100 0x10000 0x00 0x4000>;
> +                       assigned-addresses;
>                         cache-line-size = <0x00>;
>                         class-code = <0x20000>;
>                         device-id = <0x1000>;
> @@ -274,7 +274,7 @@
>                 };
>  
>                 scsi@0 {
> -                       assigned-addresses = <0x81000010 0x00 0x80 0x00 0x80 0x82000014 0x00 0x80000000 0x00 0x1000 0xc3000020 0x2100 0x00 0x00 0x4000>;
> +                       assigned-addresses;
>                         cache-line-size = <0x00>;
>                         class-code = <0x10000>;
>                         device-id = <0x1001>;
> 
> So basically the bootargs, initrd params and assigned-addresses have
> been lost.
> 
> For bootargs and initrd, I think what's happening is that because qemu
> isn't setting those (with no -kernel parameter) SLOF is creating them,
> but they're now being overwritten by qemu's post-CAS DT.
> 
> I'm not sure what's going on with assigned-addresses.
> 


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^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [Qemu-devel] [Qemu-ppc] [GIT PULL for qemu-pseries] spapr: Render full FDT on ibm, client-architecture-support
  2019-08-28  9:50         ` [Qemu-devel] [Qemu-ppc] " Greg Kurz
@ 2019-08-29  0:00           ` David Gibson
  0 siblings, 0 replies; 7+ messages in thread
From: David Gibson @ 2019-08-29  0:00 UTC (permalink / raw)
  To: Greg Kurz; +Cc: Alexey Kardashevskiy, qemu-ppc, qemu-devel

[-- Attachment #1: Type: text/plain, Size: 2380 bytes --]

On Wed, Aug 28, 2019 at 11:50:14AM +0200, Greg Kurz wrote:
> On Wed, 28 Aug 2019 15:57:40 +1000
> David Gibson <david@gibson.dropbear.id.au> wrote:
> 
> > On Wed, Aug 28, 2019 at 01:27:35PM +1000, Alexey Kardashevskiy wrote:
> > > 
> > > 
> > > On 28/08/2019 12:12, David Gibson wrote:
> > > > On Wed, Aug 28, 2019 at 10:46:34AM +1000, David Gibson wrote:
> > > > > On Tue, Aug 27, 2019 at 04:56:50PM +1000, Alexey Kardashevskiy wrote:
> > > > > > The following changes since commit d6bb8b27204eaa58f1da948b65454e3a598ab2a4:
> > > > > > 
> > > > > >    pseries: Update SLOF firmware image (2019-08-27 16:47:04 +1000)
> > > > > > 
> > > > > > are available in the Git repository at:
> > > > > > 
> > > > > >    git@github.com:aik/qemu.git tags/qemu-slof-20190827
> > > > > > 
> > > > > > for you to fetch changes up to da9960a5aaa25d27c9798c3d94c7b4c2d8af31ac:
> > > > > > 
> > > > > >    spapr: Render full FDT on ibm,client-architecture-support (2019-08-27 16:47:46 +1000)
> > > > > > 
> > > > > > ----------------------------------------------------------------
> > > > > > Alexey Kardashevskiy (1):
> > > > > >        spapr: Render full FDT on ibm,client-architecture-support
> > > > > > 
> > > > > >   hw/ppc/spapr.c | 90 +++++++---------------------------------------------------
> > > > > >   1 file changed, 10 insertions(+), 80 deletions(-)
> > > > > > 
> > > > > > 
> > > > > > *** Note: this is not for master, this is for pseries
> > > > > > 
> > > > > 
> > > > > Merged, thanks.
> > > > 
> > > > Urgh.  And the qemu change is now un-merged.  Alas, as soon as we had
> > > > a CAS reboot for XIVE the guest didn't boot on the second attempt.
> > > > Haven't had a chance to investigate yet.
> > > 
> > > QEMU command line, guest kernel version? I'd give it a try.
> > 
> > RHEL8.1 in guest and host, booting via GRUB into a XIVE capable
> > kernel.
> > 
> > I've now been able to investigate, dumping the dtb at H_UPDATE_DT
> > time.
> 
> FWIW I sent a patch to do just that some times ago:
> 
> https://patchwork.ozlabs.org/patch/1095705/

Yeah, I know.  I didn't like adding yet another option as a permanent
fixture.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2019-08-29  1:17 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-08-27  6:56 [Qemu-devel] [GIT PULL for qemu-pseries] spapr: Render full FDT on ibm, client-architecture-support Alexey Kardashevskiy
2019-08-28  0:46 ` David Gibson
2019-08-28  2:12   ` David Gibson
2019-08-28  3:27     ` Alexey Kardashevskiy
2019-08-28  5:57       ` David Gibson
2019-08-28  9:50         ` [Qemu-devel] [Qemu-ppc] " Greg Kurz
2019-08-29  0:00           ` David Gibson

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