[PATCH V6 1/3] x86/Hyper-V: Set x2apic destination mode to physical when x2apic is available

Michael Kelley mikelley at microsoft.com
Wed Feb 27 17:30:27 UTC 2019


From: Tianyu Lan <lantianyu1986 at gmail.com> Sent: Wednesday, February 27, 2019 6:54 AM
> 
> Hyper-V doesn't provide irq remapping for IO-APIC. To enable x2apic,
> set x2apic destination mode to physcial mode when x2apic is available
> and Hyper-V IOMMU driver makes sure cpus assigned with IO-APIC irqs have
> 8-bit APIC id.
> 
> Reviewed-by: Thomas Gleixner <tglx at linutronix.de>
> Reviewed-by: Michael Kelley <mikelley at microsoft.com>
> Signed-off-by: Lan Tianyu <Tianyu.Lan at microsoft.com>
> ---
> Change since v5:
>        - Fix comile error due to x2apic_phys
> 
> Change since v2:
>        - Fix compile error due to x2apic_phys
>        - Fix comment indent
> Change since v1:
>        - Remove redundant extern for x2apic_phys
> ---
>  arch/x86/kernel/cpu/mshyperv.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)

Reconfirming my reviewed-by after the change to fix the
compile error detected by the kbuild test robot.

Reviewed-by: Michael Kelley <mikelley at microsoft.com>


More information about the devel mailing list