From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Alexander Graf <agraf@suse.de>
Cc: Michael Ellerman <michael@ellerman.id.au>,
qemu-ppc@nongnu.org, qemu-devel@nongnu.org,
David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [Qemu-devel] [PATCH 03/12] pseries: Move XICS initialization before cpu initialization
Date: Tue, 20 Nov 2012 06:54:20 +1100 [thread overview]
Message-ID: <1353354860.23412.93.camel@pasglop> (raw)
In-Reply-To: <B5A92EB9-CD13-4126-A3E3-88378810113D@suse.de>
On Mon, 2012-11-19 at 17:22 +0100, Alexander Graf wrote:
> > Currently, the pseries machine initializes the cpus, then the XICS
> > interrupt controller. However, to support the upcoming in-kernel XICS
> > implementation we will need to initialize the irq controller before the
> > vcpus. This patch makes the necesssary rearrangement. This means the
> > xics init code can no longer auto-detect the number of cpus ("interrupt
> > servers" in XICS terminology) and so we must pass that in explicitly from
> > the platform code.
>
> Does this still hold true with the new in-kernel interrupt controller workflow?
We need to look into this. The in-kernel ICPs will still certainly be
created early along with the VCPUs, however we might be able to delay
the creation of the qemu emulation when not using the former.
Cheers,
Ben.
next prev parent reply other threads:[~2012-11-19 19:55 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-13 2:46 [Qemu-devel] [0/12] Pending pseries patches David Gibson
2012-11-13 2:46 ` [Qemu-devel] [PATCH 01/12] pseries: Fix incorrect initialization of interrupt controller David Gibson
2012-11-13 2:46 ` [Qemu-devel] [PATCH 02/12] pseries: Use #define for XICS base irq number David Gibson
2012-11-13 2:46 ` [Qemu-devel] [PATCH 03/12] pseries: Move XICS initialization before cpu initialization David Gibson
2012-11-19 16:22 ` Alexander Graf
2012-11-19 19:54 ` Benjamin Herrenschmidt [this message]
2012-11-19 22:47 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2012-11-20 9:26 ` Alexander Graf
2012-11-21 1:10 ` David Gibson
2012-11-13 2:46 ` [Qemu-devel] [PATCH 04/12] pseries: Return the token when we register an RTAS call David Gibson
2012-11-13 2:46 ` [Qemu-devel] [PATCH 05/12] pseries: Allow RTAS tokens without a qemu handler David Gibson
2012-11-13 2:46 ` [Qemu-devel] [PATCH 06/12] pseries: Add tracepoints to the XICS interrupt controller David Gibson
2012-11-13 2:46 ` [Qemu-devel] [PATCH 07/12] pseries: Split xics irq configuration from state information David Gibson
2012-11-13 2:46 ` [Qemu-devel] [PATCH 08/12] target-ppc: Convert ppcemb_tlb_t to use fixed 64-bit RPN David Gibson
2012-11-19 16:26 ` Alexander Graf
2012-11-19 22:48 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2012-11-20 9:29 ` Alexander Graf
2012-11-20 9:53 ` Peter Maydell
2012-11-20 9:55 ` Alexander Graf
2012-11-21 1:14 ` David Gibson
2012-11-21 1:48 ` Alexander Graf
2012-11-21 1:56 ` David Gibson
2012-11-21 10:07 ` Alexander Graf
2012-11-13 2:46 ` [Qemu-devel] [PATCH 09/12] pseries: Implement PAPR NVRAM David Gibson
2012-11-13 2:46 ` [Qemu-devel] [PATCH 10/12] pseries: Update SLOF for NVRAM support David Gibson
2012-11-13 2:46 ` [Qemu-devel] [PATCH 11/12] pseries: Fix bug in PCI MSI allocation David Gibson
2012-11-13 2:47 ` [Qemu-devel] [PATCH 12/12] pseries: Generate unique LIOBNs for PCI host bridges David Gibson
2012-11-19 16:34 ` Alexander Graf
2012-11-19 22:51 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2012-11-20 9:27 ` Alexander Graf
2012-11-20 12:26 ` Michael S. Tsirkin
2012-11-21 0:57 ` David Gibson
2012-11-21 11:34 ` Michael S. Tsirkin
2012-11-21 12:36 ` David Gibson
2012-11-21 13:13 ` Michael S. Tsirkin
2012-11-21 13:21 ` David Gibson
2012-11-21 13:27 ` Alexander Graf
2012-11-21 15:27 ` Michael S. Tsirkin
2012-11-22 2:27 ` David Gibson
2012-11-22 7:23 ` Michael S. Tsirkin
2012-11-22 11:27 ` Alexander Graf
2012-11-22 11:39 ` Michael S. Tsirkin
2012-11-23 4:13 ` David Gibson
2012-11-23 10:53 ` Michael S. Tsirkin
2012-11-23 12:59 ` David Gibson
2012-11-23 13:44 ` Michael S. Tsirkin
2012-11-23 13:44 ` Alexander Graf
2012-11-23 14:01 ` Michael S. Tsirkin
2012-11-23 14:03 ` Alexander Graf
2012-11-23 14:18 ` Michael S. Tsirkin
2012-11-23 14:27 ` Alexander Graf
2012-11-25 23:24 ` David Gibson
2012-11-21 15:20 ` Michael S. Tsirkin
2012-11-21 5:00 ` David Gibson
2012-11-21 10:09 ` Alexander Graf
2012-11-21 11:40 ` Michael S. Tsirkin
2012-11-19 16:35 ` [Qemu-devel] [0/12] Pending pseries patches Alexander Graf
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