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| author | David Woodhouse <dwmw@amazon.co.uk> | 2022-03-03 16:41:24 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-04-02 11:41:17 +0200 |
| commit | fde0451be8fb3208d4d146b8602d99ee8139e515 (patch) | |
| tree | a6b8d95db243f33f19be2971fff7dc4dc45d9e83 /Documentation/virt | |
| parent | KVM: x86/xen: Kernel acceleration for XENVER_version (diff) | |
| download | linux-fde0451be8fb3208d4d146b8602d99ee8139e515.tar.xz linux-fde0451be8fb3208d4d146b8602d99ee8139e515.zip | |
KVM: x86/xen: Support per-vCPU event channel upcall via local APIC
Windows uses a per-vCPU vector, and it's delivered via the local APIC
basically like an MSI (with associated EOI) unlike the traditional
guest-wide vector which is just magically asserted by Xen (and in the
KVM case by kvm_xen_has_interrupt() / kvm_cpu_get_extint()).
Now that the kernel is able to raise event channel events for itself,
being able to do so for Windows guests is also going to be useful.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220303154127.202856-15-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'Documentation/virt')
0 files changed, 0 insertions, 0 deletions