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  1. 02 5月, 2012 4 次提交
    • D
      pseries: Use the same interrupt swizzling for host bridges as p2p bridges · 7fb0bd34
      由 David Gibson 提交于 
      Currently the pseries PCI code uses a somewhat strange scheme of PCI irq
allocation - one per slot up to a maximum that's greater than the usual 4.
This scheme more or less worked, because we were able to tell the guest the
irq mapping in the device tree, however it's a bit odd and may break
assumptions in the future.  Worse, the array used to construct the dev
tree interrupt map was mis-sized, we got away with it only because it
happened that our SPAPR_PCI_NUM_LSI value was greater than 7.

This patch changes the pseries PCI code to use the same interrupt swizzling
scheme as is standardized for PCI to PCI bridges.  This makes for better
consistency, deals better with any devices which use multiple interrupt
pins and will make life easier in the future when we add passthrough of
what may be either a host bridge or a PCI to PCI bridge.  This won't break
existing guests, because they don't assume a particular mapping scheme for
host bridges, but just follow what we tell them in the device tree (also
updated to match, of course).  This patch also fixes the allocation of the
irq map.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NAlexander Graf <agraf@suse.de>
      7fb0bd34
    • D
      pseries: Implement automatic PAPR VIO address allocation · d601fac4
      由 David Gibson 提交于 
      PAPR virtual IO (VIO) devices require a unique, but otherwise arbitrary,
"address" used as a token to the hypercalls which manipulate them.

Currently the pseries machine code does an ok job of allocating these
addresses when the legacy -net nic / -serial and so forth options are used
but will fail to allocate them properly when using -device.

Specifically, you can use -device if all addresses are explicitly assigned.
Without explicit assignment, only one VIO device of each type (network,
console, SCSI) will be assigned properly, any further ones will attempt
to take the same address leading to a fatal error.

This patch fixes the situation by adding a proper address allocator to the
VIO "bus" code.  This is used both by -device and the legacy options and
default devices.  Addresses can still be explicitly assigned with -device
options if desired.

This patch changes the (guest visible) numbering of VIO devices, but since
their addresses are discovered using the device tree and already differ
from the numbering found on existing PowerVM systems, this does not break
compatibility.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NAlexander Graf <agraf@suse.de>
      d601fac4
    • A
      PPC: Fix up e500 cache size setting · 892c587f
      由 Alexander Graf 提交于 
      When initializing the e500 code, we need to expose its
cache line size for user and system mode, while the mmu
details are only interesting for system emulation.

Split the 2 switch statements apart, allowing us to #ifdef
out the mmu parts for user mode emulation while keeping all
cache information consistent.
Signed-off-by: NAlexander Graf <agraf@suse.de>
      892c587f
    • B
      booke:Use MMU API for creating initial mapping for secondary cpus · 58f90f21
      由 Bharat Bhushan 提交于 
      Initial Mapping creation for secondary CPU in SMP was missing new MMU API.
Signed-off-by: NBharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: NAlexander Graf <agraf@suse.de>
      58f90f21
  3. 01 5月, 2012 17 次提交
  5. 30 4月, 2012 13 次提交
  7. 29 4月, 2012 4 次提交
  9. 28 4月, 2012 2 次提交