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  1. 08 7月, 2013 3 次提交
    • D
      pci: Replace pci_find_domain() with more general pci_root_bus_path() · 568f0690
      由 David Gibson 提交于 
      pci_find_domain() is used in a number of places where we want an id for a
whole PCI domain (i.e. the subtree under a PCI root bus).  The trouble is
that many platforms may support multiple independent host bridges with no
hardware supplied notion of domain number.

This patch, therefore, replaces calls to pci_find_domain() with calls to
a new pci_root_bus_path() returning a string.  The new call is implemented
in terms of a new callback in the host bridge class, so it can be defined
in some way that's well defined for the platform.  When no callback is
available we fall back on the qbus name.

Most current uses of pci_find_domain() are for error or informational
messages, so the change in identifiers should be harmless.  The exception
is pci_get_dev_path(), whose results form part of migration streams.  To
maintain compatibility with old migration streams, the PIIX PCI host is
altered to always supply "0000" for this path, which matches the old domain
number (since the code didn't actually support domains other than 0).

For the pseries (spapr) PCI bridge we use a different platform-unique
identifier (pseries machines can routinely have dozens of PCI host
bridges).  Theoretically that breaks migration streams, but given that we
don't yet have migration support for pseries, it doesn't matter.

Any other machines that have working migration support including PCI
devices will need to be updated to maintain migration stream compatibility.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
      568f0690
    • D
      pci: Use helper to find device's root bus in pci_find_domain() · c473d18d
      由 David Gibson 提交于 
      Currently pci_find_domain() performs two functions - it locates the PCI
root bus above the given bus, then looks up that root bus's domain number.
This patch adds a helper function to perform the first task, finding the
root bus for a given PCI device.  This is then used in pci_find_domain().
This changes pci_find_domain()'s signature slightly, taking a PCIDevice
instead of a PCIBus - since all callers passed something of the form
dev->bus, this simplifies things slightly.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
      c473d18d
    • D
      pci: Abolish pci_find_root_bus() · 1ef7a2a2
      由 David Gibson 提交于 
      pci_find_root_bus() takes a domain parameter.  Currently PCI root buses
with domain other than 0 can't be created, so this is more or less a long
winded way of retrieving the main PCI root bus.  Numbered domains don't
actually properly cover the (non x86) possibilities for multiple PCI root
buses, so this patch for now enforces the domain == 0 restriction in other
places to replace pci_find_root_bus() with an explicit
pci_find_primary_bus().
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
      1ef7a2a2
  3. 04 7月, 2013 10 次提交
    • D
      pci: Move pci_read_devaddr to pci-hotplug-old.c · 6ac363b5
      由 David Gibson 提交于 
      pci_read_devaddr() is only used by the legacy functions for the old PCI
hotplug interface in pci-hotplug-old.c.  So we move the function there,
and make it static.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
      6ac363b5
    • D
      pci: Cleanup configuration for pci-hotplug.c · 79ca616f
      由 David Gibson 提交于 
      pci-hotplug.c and the CONFIG_PCI_HOTPLUG variable which controls its
compilation are misnamed.  They're not about PCI hotplug in general, but
rather about the pci_add/pci_del interface which are now deprecated in
favour of the more general device_add/device_del interface.  This patch
therefore renames them to pci-hotplug-old.c and CONFIG_PCI_HOTPLUG_OLD.

CONFIG_PCI_HOTPLUG=y was listed twice in {i386,x86_64}-softmmu.make for no
particular reason, so we clean that up too.  In addition it was included in
ppc64-softmmu.mak for which the old hotplug interface was never used and is
unsuitable, so we remove that too.

Most of pci-hotplug.c was additionaly protected by #ifdef TARGET_I386.  The
small piece which wasn't is only called from the pci_add and pci_del hooks
in hmp-commands.hx, which themselves were protected by #ifdef TARGET_I386.
This patch therefore also removes the #ifdef from pci-hotplug-old.c,
and changes the ifdefs in hmp-commands.hx to use CONFIG_PCI_HOTPLUG_OLD.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
      79ca616f
    • M
      pvpanic: fix fwcfg for big endian hosts · fea7d596
      由 Michael S. Tsirkin 提交于 
      Convert port number to little endian when
exposing it in fw cfg.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
      fea7d596
    • M
      pvpanic: initialization cleanup · bc3e6a0d
      由 Michael S. Tsirkin 提交于 
      Avoid use of static variables: PC systems
initialize pvpanic device through pvpanic_init,
so we can simply create the fw_cfg file at that point.
This also makes it possible to skip device
creation completely if fw_cfg is not there, e.g. for xen -
so the ports it reserves are not discoverable by guests.

Also, make pvpanic_init void since callers ignore return
status anyway.

Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Paul Durrant <Paul.Durrant@citrix.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
      bc3e6a0d
    • M
      MAINTAINERS: s/Marcelo/Paolo/ · c6d559d9
      由 Michael S. Tsirkin 提交于 
      Marcelo doesn't maintain kvm anymore,
Paolo is taking over the job.
Update MAINTAINERS to stop flooding Marcelo with mail.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
      c6d559d9
    • A
      e1000: cleanup process_tx_desc · a0ae17a6
      由 Andrew Jones 提交于 
      Coverity complains about two overruns in process_tx_desc(). The
complaints are false positives, but we might as well eliminate
them. The problem is that "hdr" is defined as an unsigned int,
but then used to offset an array of size 65536, and another of
size 256 bytes. hdr will actually never be greater than 255
though, as it's assigned only once and to the value of
tp->hdr_len, which is an uint8_t. This patch simply gets rid of
hdr, replacing it with tp->hdr_len, which makes it consistent
with all other tp member use in the function.

v2:
 - also cleanup coding style issues in the touched lines
Signed-off-by: NAndrew Jones <drjones@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
      a0ae17a6
    • M
      pc_piix: cleanup init compat handling · fcbe0a70
      由 Michael S. Tsirkin 提交于 
      Make sure 1.4 calls 1.5, 1.3 calls 1.4 etc.
This way it's enough to add enough new compat hook
in a single place in piix.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
      fcbe0a70
    • M
      pc: pass PCI hole ranges to Guests · f8c457b8
      由 Michael S. Tsirkin 提交于 
      Guest currently has to jump through lots of hoops to guess the PCI hole
ranges.  It's fragile, and makes us change BIOS each time we add a new
chipset.  Let's report the window in a ROM file, to make BIOS do exactly
what QEMU intends.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
      f8c457b8
    • M
      pci: store PCI hole ranges in guestinfo structure · 3459a625
      由 Michael S. Tsirkin 提交于 
      Will be used to pass hole ranges to guests.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
      3459a625
    • M
      range: add Range structure · 620ac82e
      由 Michael S. Tsirkin 提交于 
      Sometimes we need to pass ranges around, add a
handy structure for this purpose.

Note: memory.c defines its own concept of AddrRange structure for
working with 128 addresses.  It's necessary there for doing range math.
This is not needed for most users: struct Range is
much simpler, and is only used for passing the range around.

Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
      620ac82e
  5. 03 7月, 2013 6 次提交
  7. 01 7月, 2013 21 次提交