xen/x86: use extended destination mode if available

[PATCH 0/2] xen/x86: use extended destination mode if available

Roger Pau Monne posted 2 patches 2 years, 3 months ago

Only 0 patches received!

arch/x86/include/asm/xen/cpuid.h | 7 +++++++
arch/x86/xen/enlighten_hvm.c     | 9 ++++++++-
2 files changed, 15 insertions(+), 1 deletion(-)

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[PATCH 0/2] xen/x86: use extended destination mode if available

Posted by Roger Pau Monne 2 years, 3 months ago

Hello,

Following two patches enable the usage of the extended destination ID if
supported by Xen. This is the same feature already supported by QEMU/KVM
and HyperV.

First patch can probably go in regardless of whether Xen ends up
implementing the extended destination ID, there's no reason to prevent a
VM from using x2APIC mode.

Thanks, Roger.

Roger Pau Monne (2):
  xen/x2apic: enable x2apic mode when supported
  xen/x86: detect support for extended destination ID

 arch/x86/include/asm/xen/cpuid.h | 7 +++++++
 arch/x86/xen/enlighten_hvm.c     | 9 ++++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

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2.34.1