RE: [PATCH 1/5] x86/hvm: change EOI exit bitmap helper parameter

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

> From: Roger Pau Monne <roger.pau@xxxxxxxxxx>
> Sent: Wednesday, August 12, 2020 8:47 PM
arameter
> 
> Change the last parameter of the update_eoi_exit_bitmap helper to be a
> set/clear boolean instead of a triggering field. This is already
> inline with how the function is implemented, and will allow deciding
> whether an exit is required by the higher layers that call into
> update_eoi_exit_bitmap. Note that the current behavior is not changed
> by this patch.
> 
> No functional change intended.
> 
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>

> ---
>  xen/arch/x86/hvm/vmx/vmx.c    | 4 ++--
>  xen/include/asm-x86/hvm/hvm.h | 2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c
> index eb54aadfba..1c04a7e3fc 100644
> --- a/xen/arch/x86/hvm/vmx/vmx.c
> +++ b/xen/arch/x86/hvm/vmx/vmx.c
> @@ -1885,9 +1885,9 @@ static void vmx_set_info_guest(struct vcpu *v)
>      vmx_vmcs_exit(v);
>  }
> 
> -static void vmx_update_eoi_exit_bitmap(struct vcpu *v, u8 vector, u8 trig)
> +static void vmx_update_eoi_exit_bitmap(struct vcpu *v, uint8_t vector, bool
> set)
>  {
> -    if ( trig )
> +    if ( set )
>          vmx_set_eoi_exit_bitmap(v, vector);
>      else
>          vmx_clear_eoi_exit_bitmap(v, vector);
> diff --git a/xen/include/asm-x86/hvm/hvm.h b/xen/include/asm-
> x86/hvm/hvm.h
> index 1eb377dd82..be0d8b0a4d 100644
> --- a/xen/include/asm-x86/hvm/hvm.h
> +++ b/xen/include/asm-x86/hvm/hvm.h
> @@ -192,7 +192,7 @@ struct hvm_function_table {
>      void (*nhvm_domain_relinquish_resources)(struct domain *d);
> 
>      /* Virtual interrupt delivery */
> -    void (*update_eoi_exit_bitmap)(struct vcpu *v, u8 vector, u8 trig);
> +    void (*update_eoi_exit_bitmap)(struct vcpu *v, uint8_t vector, bool set);
>      void (*process_isr)(int isr, struct vcpu *v);
>      void (*deliver_posted_intr)(struct vcpu *v, u8 vector);
>      void (*sync_pir_to_irr)(struct vcpu *v);
> --
> 2.28.0