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(-) -- 2.34.1
