[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v2] xen/x86: add a comment regarding how to get the VCPU ID on HVM
Add a note to the public headers regarding how to get the VCPU ID for HVM guests (on x86). Signed-off-by: Roger Pau Monnà <roger.pau@xxxxxxxxxx> Acked-by: Matt Wilson <msw@xxxxxxxxxx> Cc: Jan Beulich <jbeulich@xxxxxxxx> Cc: Keir Fraser <keir@xxxxxxx> Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> Cc: Matt Wilson <msw@xxxxxxxxxx> --- This is what Linux PVHVM does AFAIK, and also what I've been using in my FreeBSD PVHVM series, but it's not written anywere. --- Changes since v1: * Reworded the comment as requested by Matt. --- xen/include/public/vcpu.h | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/xen/include/public/vcpu.h b/xen/include/public/vcpu.h index e888daf..f09367a 100644 --- a/xen/include/public/vcpu.h +++ b/xen/include/public/vcpu.h @@ -35,6 +35,10 @@ * @cmd == VCPUOP_??? (VCPU operation). * @vcpuid == VCPU to operate on. * @extra_args == Operation-specific extra arguments (NULL if none). + * + * For x86 HVM domains that use VCPU operations the VCPU ID is the ACPI + * Processor ID of the CPU (not to be confused with the APIC ID), as + * fetched from the MADT table. */ /* -- 1.7.7.5 (Apple Git-26) _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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