Re: [PATCH v2] x86/Hyper-V: Expand definition of struct hv_vp_assist_page

From: Wei Liu
Date: Fri Nov 11 2022 - 18:39:46 EST


On Mon, Nov 07, 2022 at 04:03:07PM +0530, Anirudh Rayabharam wrote:
> On Fri, Nov 04, 2022 at 11:38:43AM -0700, Saurabh Sengar wrote:
> > The struct hv_vp_assist_page has 24 bytes which is defined as u64[3],
> > expand that to expose vtl_entry_reason, vtl_ret_x64rax and vtl_ret_x64rcx
> > field. vtl_entry_reason is updated by hypervisor for the entry reason as
> > to why the VTL was entered on the virtual processor.
> > Guest updates the vtl_ret_* fields to provide the register values to
> > restore on VTL return. The specific register values that are restored
> > which will be updated on vtl_ret_x64rax and vtl_ret_x64rcx.
> > Also added the missing fields for synthetic_time_unhalted_timer_expired,
> > virtualization_fault_information and intercept_message.

I did a bit of stylistic changes to the commit message and queued this
up to hyperv-next. Thanks.