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Jan H. Schönherr a4888486c5 KVM: VMX: Do not fully reset PI descriptor on vCPU reset 
Parts of the posted interrupt descriptor configure host behavior,
such as the notification vector and destination. Overwriting them
with zero as done during vCPU reset breaks posted interrupts.
KVM (re-)writes these fields on certain occasions and belatedly fixes
the situation in many cases. However, if you have a guest configured
with "idle=poll", for example, the fields might stay zero forever.

Do not reset the full descriptor in vmx_vcpu_reset(). Instead,
reset only the outstanding notifications and leave everything
else untouched.

Signed-off-by: Jan H. Schönherr <jschoenh@amazon.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-11-02 18:27:11 +01:00
..
alpha alpha: fix build failures 2017-10-03 17:54:23 -07:00
arc ARC: [plat-hsdk]: Add reset controller node to manage ethernet reset 2017-10-06 08:59:54 -07:00
arm STM32 fixes for v4.14: 2017-10-04 10:31:00 -07:00
arm64 arm64 fixes: 2017-10-06 11:31:46 -07:00
blackfin Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2017-09-11 18:34:47 -07:00
c6x arch: remove unused *_segments() macros/functions 2017-09-22 12:59:52 -10:00
cris MTD changes for 4.14: 2017-09-09 14:48:21 -07:00
frv arch: remove unused *_segments() macros/functions 2017-09-22 12:59:52 -10:00
h8300 arch: define CPU_BIG_ENDIAN for all fixed big endian archs 2017-09-08 18:26:48 -07:00
hexagon Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-04 11:52:29 -07:00
ia64 Merge branch 'work.ipc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-09-14 17:37:26 -07:00
m32r m32r: fix build failure 2017-10-03 17:54:26 -07:00
m68k Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2017-09-10 21:07:39 -07:00
metag arch: remove unused *_segments() macros/functions 2017-09-22 12:59:52 -10:00
microblaze arch: change default endian for microblaze 2017-09-25 15:31:26 +02:00
mips MIPS: math-emu: Remove pr_err() calls from fpu_emu() 2017-10-09 16:33:34 +02:00
mn10300 arch: remove unused *_segments() macros/functions 2017-09-22 12:59:52 -10:00
nios2 nios2 update for v4.14-rc1 2017-09-15 12:47:21 -07:00
openrisc OpenRISC patches for 4.14 2017-09-13 11:52:18 -07:00
parisc Merge branch 'core-watchdog-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-10-06 08:36:41 -07:00
powerpc Merge branch 'kvm-ppc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2017-10-19 14:42:09 +02:00
s390 s390/topology: enable / disable topology dynamically 2017-09-20 13:47:55 +02:00
score
sh sh: sh7269: remove nonexistent GPIO_PH[0-7] to fix pinctrl registration 2017-10-03 17:54:24 -07:00
sparc Revert commit 1a8b6d76dc ("net:add one common config...") 2017-10-09 07:43:06 -07:00
tile Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2017-09-22 13:02:54 -10:00
um um/time: Fixup namespace collision 2017-09-29 10:07:44 +02:00
unicore32 unicore32/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks 2017-08-03 16:29:34 -05:00
x86 KVM: VMX: Do not fully reset PI descriptor on vCPU reset 2017-11-02 18:27:11 +01:00
xtensa arch: remove unused *_segments() macros/functions 2017-09-22 12:59:52 -10:00
.gitignore
Kconfig Revert commit 1a8b6d76dc ("net:add one common config...") 2017-10-09 07:43:06 -07:00