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9aac537e0e
linux/drivers/pci
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Bjorn Helgaas 9aac537e0e PCI: disable MEM decoding while updating 64-bit MEM BARs 
When we update 64-bit BARs, we have to perform two config writes.  Between
the writes, the half-written BAR value could match a MEM access intended
for another device.  This could result in corruption of this device (for
writes) or an unexpected response machine check (for reads).

To prevent this, disable MEM decoding while updating such BARs.  This uses
the same safety test as 253d2e5498, which disables both MEM and IO while
sizing BARs, namely, we don't disable decoding for host bridge devices.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-07-09 19:50:53 -06:00
..
hotplug PCI: make acpihp use __pci_remove_bus_device instead 2012-02-27 12:17:16 -08:00
pcie PCI: fix uninitialized variable 'cap_mask' 2012-05-07 09:27:26 -06:00
.gitignore
access.c PCI: Introduce INTx check & mask API 2012-01-06 12:10:34 -08:00
ats.c Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-01-11 18:50:26 -08:00
bus.c PCI: add struct pci_host_bridge_window with CPU/bus address offset 2012-02-23 20:19:00 -07:00
host-bridge.c PCI: add host bridge release support 2012-04-30 14:52:43 -06:00
hotplug-pci.c pci: Fix files needing export.h for EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:31:22 -04:00
hotplug.c
htirq.c pci: Fix files needing export.h for EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:31:22 -04:00
ioapic.c pci, x86/io-apic: Allow PCI_IOAPIC to be user configurable on x86 2011-12-06 09:21:05 +01:00
iov.c PCI: Rename pci_remove_bus_device to pci_stop_and_remove_bus_device 2012-02-27 12:12:18 -08:00
irq.c pci: Fix files needing export.h for EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:31:22 -04:00
Kconfig PCI: add a PCI resource reallocation config option 2012-02-24 09:38:59 -08:00
Makefile PCI changes for the 3.5 merge window: 2012-05-21 16:24:54 -07:00
msi.c x86/PCI: Expand the x86_msi_ops to have a restore MSIs. 2012-01-06 14:02:26 -08:00
msi.h PCI: MSI: Move MSI-X entry definition to pci_regs.h 2010-12-23 12:53:07 -08:00
of.c PCI: OF: Don't crash when bridge parent is NULL. 2011-08-19 08:51:37 -07:00
pci-acpi.c ACPI / PCI / PM: Fix device PM regression related to D3hot/D3cold 2012-05-17 16:16:16 -07:00
pci-driver.c PCI: disable Bus Master on PCI device shutdown 2012-05-04 11:07:18 -06:00
pci-label.c switch ->is_visible() to returning umode_t 2012-01-03 22:54:55 -05:00
pci-stub.c PCI: pci-stub: ignore zero-length id parameters 2010-12-23 12:53:52 -08:00
pci-sysfs.c vgaarb: Add support for setting the default video device (v2) 2012-04-24 09:50:15 +01:00
pci.c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2012-05-29 18:27:19 -07:00
pci.h PCI: add generic device into pci_host_bridge struct 2012-04-30 13:53:42 -06:00
probe.c PCI: leave MEM and IO decoding disabled during 64-bit BAR sizing, too 2012-07-09 19:49:24 -06:00
proc.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
quirks.c PCI changes for the 3.5 merge window: 2012-05-21 16:24:54 -07:00
remove.c PCI: export __pci_remove_bus_device 2012-02-27 12:16:55 -08:00
rom.c pci: Fix files needing export.h for EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:31:22 -04:00
search.c PCI: use for_each_pci_dev() 2010-07-30 09:47:22 -07:00
setup-bus.c Merge branch 'pci-next+probe_only+bus2res-fb127cb' of git://github.com/bjorn-helgaas/linux into linux-next 2012-02-24 14:25:33 -08:00
setup-irq.c PCI: Make the struct pci_dev * argument of pci_fixup_irqs const. 2011-07-22 08:26:06 -07:00
setup-res.c PCI: disable MEM decoding while updating 64-bit MEM BARs 2012-07-09 19:50:53 -06:00
slot.c pci: add module.h to files implicitly relying on its presence. 2011-10-31 19:31:23 -04:00
syscall.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
vpd.c pci: Fix files needing export.h for EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:31:22 -04:00
xen-pcifront.c Two fixes for regressions: 2012-04-06 17:54:53 -07:00