From: Julien Grall <julien.grall@citrix.com>
To: Marc Zyngier <marc.zyngier@arm.com>,
Ian Campbell <ian.campbell@citrix.com>,
Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Cc: Jason Cooper <jason@lakedaemon.net>,
kvm@vger.kernel.org, Eric Auger <eric.auger@linaro.org>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
linux-kernel@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org,
Thomas Gleixner <tglx@linutronix.de>,
Jiang Liu <jiang.liu@linux.intel.com>,
Christoffer Dall <christoffer.dall@linaro.org>
Subject: Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1
Date: Fri, 11 Sep 2015 13:53:31 +0100 [thread overview]
Message-ID: <55F2CECB.10801@citrix.com> (raw)
In-Reply-To: <55F2B65E.9060303@arm.com>
On 11/09/15 12:09, Marc Zyngier wrote:
> On 11/09/15 11:59, Julien Grall wrote:
>>
>>
>> On 11/09/2015 11:54, Ian Campbell wrote:
>>> On Thu, 2015-09-10 at 17:23 +0100, Julien Grall wrote:
>>>> I applied the two patches on top of linus/master and I'm able to boot
>>>> correctly on X-gene. Thank you!
>>>
>>> Perhaps we should replicate this approach in Xen and get rid of
>>> PLATFORM_QUIRK_GIC_64K_STRIDE?
>>
>> I was thinking to do it. But, I wasn't sure if it was worth to get a
>> such "ugly" patch compare to the quirk.
>
> It is not a quirk. It is actually recommended in the SBSA spec. The
> patch is ugly because we can't do the right thing on the one platform
> that actually implemented ARM's own recommendation (we can't tell the
> bloody firmware to stop overriding our DT).
>
> I would otherwise have added a "arm,use-sbsa-aliasing" property (or
> something similar) instead of trying to guess things...
I will give a look to port this patch on Xen.
Regards,
--
Julien Grall
WARNING: multiple messages have this Message-ID (diff)
From: julien.grall@citrix.com (Julien Grall)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1
Date: Fri, 11 Sep 2015 13:53:31 +0100 [thread overview]
Message-ID: <55F2CECB.10801@citrix.com> (raw)
In-Reply-To: <55F2B65E.9060303@arm.com>
On 11/09/15 12:09, Marc Zyngier wrote:
> On 11/09/15 11:59, Julien Grall wrote:
>>
>>
>> On 11/09/2015 11:54, Ian Campbell wrote:
>>> On Thu, 2015-09-10 at 17:23 +0100, Julien Grall wrote:
>>>> I applied the two patches on top of linus/master and I'm able to boot
>>>> correctly on X-gene. Thank you!
>>>
>>> Perhaps we should replicate this approach in Xen and get rid of
>>> PLATFORM_QUIRK_GIC_64K_STRIDE?
>>
>> I was thinking to do it. But, I wasn't sure if it was worth to get a
>> such "ugly" patch compare to the quirk.
>
> It is not a quirk. It is actually recommended in the SBSA spec. The
> patch is ugly because we can't do the right thing on the one platform
> that actually implemented ARM's own recommendation (we can't tell the
> bloody firmware to stop overriding our DT).
>
> I would otherwise have added a "arm,use-sbsa-aliasing" property (or
> something similar) instead of trying to guess things...
I will give a look to port this patch on Xen.
Regards,
--
Julien Grall
WARNING: multiple messages have this Message-ID (diff)
From: Julien Grall <julien.grall@citrix.com>
To: Marc Zyngier <marc.zyngier@arm.com>,
Ian Campbell <ian.campbell@citrix.com>,
Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Cc: Jason Cooper <jason@lakedaemon.net>, <kvm@vger.kernel.org>,
Eric Auger <eric.auger@linaro.org>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
<linux-kernel@vger.kernel.org>, <kvmarm@lists.cs.columbia.edu>,
<linux-arm-kernel@lists.infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Jiang Liu <jiang.liu@linux.intel.com>,
Christoffer Dall <christoffer.dall@linaro.org>
Subject: Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1
Date: Fri, 11 Sep 2015 13:53:31 +0100 [thread overview]
Message-ID: <55F2CECB.10801@citrix.com> (raw)
In-Reply-To: <55F2B65E.9060303@arm.com>
On 11/09/15 12:09, Marc Zyngier wrote:
> On 11/09/15 11:59, Julien Grall wrote:
>>
>>
>> On 11/09/2015 11:54, Ian Campbell wrote:
>>> On Thu, 2015-09-10 at 17:23 +0100, Julien Grall wrote:
>>>> I applied the two patches on top of linus/master and I'm able to boot
>>>> correctly on X-gene. Thank you!
>>>
>>> Perhaps we should replicate this approach in Xen and get rid of
>>> PLATFORM_QUIRK_GIC_64K_STRIDE?
>>
>> I was thinking to do it. But, I wasn't sure if it was worth to get a
>> such "ugly" patch compare to the quirk.
>
> It is not a quirk. It is actually recommended in the SBSA spec. The
> patch is ugly because we can't do the right thing on the one platform
> that actually implemented ARM's own recommendation (we can't tell the
> bloody firmware to stop overriding our DT).
>
> I would otherwise have added a "arm,use-sbsa-aliasing" property (or
> something similar) instead of trying to guess things...
I will give a look to port this patch on Xen.
Regards,
--
Julien Grall
next prev parent reply other threads:[~2015-09-11 12:53 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-26 16:00 [PATCH v4 0/4] irqchip: GICv2/v3: Add support for irq_vcpu_affinity Marc Zyngier
2015-08-26 16:00 ` Marc Zyngier
2015-08-26 16:00 ` Marc Zyngier
2015-08-26 16:00 ` [PATCH v4 1/4] irqchip: GICv3: Convert to EOImode == 1 Marc Zyngier
2015-08-26 16:00 ` Marc Zyngier
2015-08-26 16:00 ` Marc Zyngier
2015-08-27 15:15 ` [tip:irq/core] irqchip/GICv3: " tip-bot for Marc Zyngier
2015-08-26 16:00 ` [PATCH v4 2/4] irqchip: GICv3: Don't deactivate interrupts forwarded to a guest Marc Zyngier
2015-08-26 16:00 ` Marc Zyngier
2015-08-26 16:00 ` Marc Zyngier
2015-08-27 15:16 ` [tip:irq/core] irqchip/GICv3: Don' t " tip-bot for Marc Zyngier
2015-08-26 16:00 ` [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1 Marc Zyngier
2015-08-26 16:00 ` Marc Zyngier
2015-08-26 16:00 ` Marc Zyngier
2015-08-27 15:16 ` [tip:irq/core] irqchip/GIC: " tip-bot for Marc Zyngier
2015-09-09 19:23 ` [PATCH v4 3/4] irqchip: GIC: " Julien Grall
2015-09-09 19:23 ` Julien Grall
2015-09-09 19:23 ` Julien Grall
2015-09-10 9:54 ` Marc Zyngier
2015-09-10 9:54 ` Marc Zyngier
2015-09-10 10:55 ` Marc Zyngier
2015-09-10 10:55 ` Marc Zyngier
2015-09-10 16:23 ` Julien Grall
2015-09-10 16:23 ` Julien Grall
2015-09-10 16:23 ` Julien Grall
2015-09-10 16:30 ` Marc Zyngier
2015-09-10 16:30 ` Marc Zyngier
2015-09-10 16:30 ` Julien Grall
2015-09-10 16:30 ` Julien Grall
2015-09-10 16:30 ` Julien Grall
2015-09-11 10:54 ` Ian Campbell
2015-09-11 10:54 ` Ian Campbell
2015-09-11 10:54 ` Ian Campbell
2015-09-11 10:59 ` Julien Grall
2015-09-11 10:59 ` Julien Grall
2015-09-11 10:59 ` Julien Grall
2015-09-11 11:09 ` Marc Zyngier
2015-09-11 11:09 ` Marc Zyngier
2015-09-11 12:53 ` Julien Grall [this message]
2015-09-11 12:53 ` Julien Grall
2015-09-11 12:53 ` Julien Grall
2015-08-26 16:00 ` [PATCH v4 4/4] irqchip: GIC: Don't deactivate interrupts forwarded to a guest Marc Zyngier
2015-08-26 16:00 ` Marc Zyngier
2015-08-26 16:00 ` Marc Zyngier
2015-08-27 15:16 ` [tip:irq/core] irqchip/GIC: Don' t " tip-bot for Marc Zyngier
2015-08-27 13:03 ` [PATCH v4 0/4] irqchip: GICv2/v3: Add support for irq_vcpu_affinity Eric Auger
2015-08-27 13:03 ` Eric Auger
2015-08-27 14:18 ` Marc Zyngier
2015-08-27 14:18 ` Marc Zyngier
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=55F2CECB.10801@citrix.com \
--to=julien.grall@citrix.com \
--cc=christoffer.dall@linaro.org \
--cc=eric.auger@linaro.org \
--cc=ian.campbell@citrix.com \
--cc=jason@lakedaemon.net \
--cc=jiang.liu@linux.intel.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=marc.zyngier@arm.com \
--cc=pranavkumar@linaro.org \
--cc=stefano.stabellini@eu.citrix.com \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.