Re: [PATCH v4 6/7] Drivers: hv: Use hv_setup_*() to set up hypercall arguments for mshv code
From: Nuno Das Neves
Date: Wed Aug 13 2025 - 18:18:18 EST
On 7/17/2025 11:55 PM, mhkelley58@xxxxxxxxx wrote:
> From: Michael Kelley <mhklinux@xxxxxxxxxxx>
>
> Update hypercall call sites to use the new hv_setup_*() functions
> to set up hypercall arguments. Since these functions zero the
> fixed portion of input memory, remove now redundant calls to memset()
> and explicit zero'ing of input fields. Where feasible use batch size
> returned by hv_setup_inout_array() instead of separate #define value.
>
> Signed-off-by: Michael Kelley <mhklinux@xxxxxxxxxxx>
> ---
>
> Notes:
> Changes in v4:
> * Rename hv_hvcall_*() functions to hv_setup_*() [Easwar Hariharan]
> * Rename hv_hvcall_in_batch_size() to hv_get_input_batch_size()
> [Easwar Hariharan]
>
> Changes in v3:
> * This patch is new in v3 due to rebasing on 6.15-rc1, which has new
> mshv-related hypercalls.
>
> drivers/hv/mshv_common.c | 31 +++------
> drivers/hv/mshv_root_hv_call.c | 121 +++++++++++++--------------------
> drivers/hv/mshv_root_main.c | 5 +-
> 3 files changed, 60 insertions(+), 97 deletions(-)
<snip>
I tested most of the modified call sites (about 75%), and the rest look
correct to me.
Tested-by: Nuno Das Neves <nunodasneves@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: Nuno Das Neves <nunodasneves@xxxxxxxxxxxxxxxxxxx>