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Re: [Qemu-ppc] [PATCH 03/12] pseries: Move XICS initialization before cp
From: |
Benjamin Herrenschmidt |
Subject: |
Re: [Qemu-ppc] [PATCH 03/12] pseries: Move XICS initialization before cpu initialization |
Date: |
Tue, 20 Nov 2012 06:54:20 +1100 |
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.
- Re: [Qemu-ppc] [PATCH 12/12] pseries: Generate unique LIOBNs for PCI host bridges, (continued)
- Re: [Qemu-ppc] [PATCH 12/12] pseries: Generate unique LIOBNs for PCI host bridges, Alexander Graf, 2012/11/23
- Re: [Qemu-ppc] [PATCH 12/12] pseries: Generate unique LIOBNs for PCI host bridges, David Gibson, 2012/11/25
- Re: [Qemu-ppc] [PATCH 12/12] pseries: Generate unique LIOBNs for PCI host bridges, Michael S. Tsirkin, 2012/11/21
- Re: [Qemu-ppc] [PATCH 12/12] pseries: Generate unique LIOBNs for PCI host bridges, David Gibson, 2012/11/20
- Re: [Qemu-ppc] [PATCH 12/12] pseries: Generate unique LIOBNs for PCI host bridges, Alexander Graf, 2012/11/21
- Re: [Qemu-ppc] [PATCH 12/12] pseries: Generate unique LIOBNs for PCI host bridges, Michael S. Tsirkin, 2012/11/21
[Qemu-ppc] [PATCH 11/12] pseries: Fix bug in PCI MSI allocation, David Gibson, 2012/11/12
[Qemu-ppc] [PATCH 09/12] pseries: Implement PAPR NVRAM, David Gibson, 2012/11/12
[Qemu-ppc] [PATCH 03/12] pseries: Move XICS initialization before cpu initialization, David Gibson, 2012/11/12
[Qemu-ppc] [PATCH 05/12] pseries: Allow RTAS tokens without a qemu handler, David Gibson, 2012/11/12
[Qemu-ppc] [PATCH 10/12] pseries: Update SLOF for NVRAM support, David Gibson, 2012/11/12
Re: [Qemu-ppc] [0/12] Pending pseries patches, Alexander Graf, 2012/11/19