lkml.org 
[lkml]   [2017]   [Oct]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subject[patch 0/3] x86/PCI/MSI: Make sure that irq reservation mode works everywhere
Dexuan reported that the recent rework of the vector allocation mode in x86
broke HyperV PCI passtrough because the rework missed to add the
MSI_FLAG_MUST_REACTIVATE flag to the HyperV/PCI interrupt domain info.

The simple solution would be to set the flag in the HyperV/PCI driver but
it's better to make this generic and let the PCI/MSI core code set the flag
when reservation mode is enabled. That ensures that future users of this
wont trip over the same problem.

Thanks,

tglx

---
arch/x86/Kconfig | 2 +-
arch/x86/kernel/apic/msi.c | 5 ++---
drivers/pci/msi.c | 2 ++
kernel/irq/Kconfig | 3 +++
4 files changed, 8 insertions(+), 4 deletions(-)



\
 
 \ /
  Last update: 2017-10-17 09:57    [W:6.318 / U:0.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site