linux_dsm_epyc7002/arch/x86/pci
Thomas Gleixner 3ed6cc9c2d x86/pci: Create PCI/MSI irqdomain after x86_init.pci.arch_init()
commit 70245f86c109e0eafb92ea9653184c0e44b4b35c upstream.

Invoking x86_init.irqs.create_pci_msi_domain() before
x86_init.pci.arch_init() breaks XEN PV.

The XEN_PV specific pci.arch_init() function overrides the default
create_pci_msi_domain() which is obviously too late.

As a consequence the XEN PV PCI/MSI allocation goes through the native
path which runs out of vectors and causes malfunction.

Invoke it after x86_init.pci.arch_init().

Fixes: 6b15ffa07d ("x86/irq: Initialize PCI/MSI domain at PCI init time")
Reported-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juergen Gross <jgross@suse.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87pn18djte.fsf@nanos.tec.linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-17 11:02:28 +01:00
..
acpi.c
amd_bus.c
broadcom_bus.c
bus_numa.c
bus_numa.h
ce4100.c
common.c
direct.c
early.c
fixup.c
i386.c
init.c x86/pci: Create PCI/MSI irqdomain after x86_init.pci.arch_init() 2021-02-17 11:02:28 +01:00
intel_mid_pci.c Merge branch 'pci/misc' 2020-10-21 09:58:36 -05:00
irq.c
legacy.c
Makefile
mmconfig_32.c
mmconfig_64.c
mmconfig-shared.c
numachip.c
olpc.c
pcbios.c
sta2x11-fixup.c
xen.c