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RE: [PATCH v3] x86/vlapic: call vmx_vlapic_msr_changed through an hvm_function callback
- To: Xenia Ragiadakou <burzalodowa@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
- Date: Thu, 16 Feb 2023 04:18:55 +0000
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- Cc: "Beulich, Jan" <JBeulich@xxxxxxxx>, "andrew.cooper3@xxxxxxxxxx" <andrew.cooper3@xxxxxxxxxx>, Pau Monné, Roger <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, "Nakajima, Jun" <jun.nakajima@xxxxxxxxx>
- Delivery-date: Thu, 16 Feb 2023 04:19:40 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHZP6FixcPovaFRKk6HAi1Mi8oY2a7Q/Cog
- Thread-topic: [PATCH v3] x86/vlapic: call vmx_vlapic_msr_changed through an hvm_function callback
> From: Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
> Sent: Monday, February 13, 2023 7:50 PM
>
> APIC virtualization support is currently implemented only for Intel VT-x.
> To aid future work on separating AMD-V from Intel VT-x code, instead of
> calling directly vmx_vlapic_msr_changed() from common hvm code, add a
> stub
> to the hvm_function_table, named update_vlapic_mode, and create a
> wrapper
> function, called hvm_vlapic_mode(), to be used by common hvm code.
>
> After the change above, do not include header asm/hvm/vmx/vmx.h as it is
> not required anymore and resolve subsequent build errors for implicit
> declaration of functions ‘TRACE_2_LONG_3D’ and ‘TRC_PAR_LONG’ by
> including
> missing asm/hvm/trace.h header.
>
> No functional change intended.
>
> Signed-off-by: Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
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