linux-kernel - Re: [PATCH v4 RESEND 4/5] x86/hyper-v: rename ipi_arg_{ex,non

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Message-ID: <893f1078-1ea9-8a2e-0467-58f524504ac7@redhat.com>
Date:   Fri, 14 Sep 2018 19:34:32 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Vitaly Kuznetsov <vkuznets@...hat.com>, kvm@...r.kernel.org
Cc:     Radim Krčmář <rkrcmar@...hat.com>,
        Roman Kagan <rkagan@...tuozzo.com>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        "Michael Kelley (EOSG)" <Michael.H.Kelley@...rosoft.com>,
        Wanpeng Li <wanpeng.li@...mail.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 RESEND 4/5] x86/hyper-v: rename ipi_arg_{ex,non_ex}
 structures

On 22/08/2018 12:18, Vitaly Kuznetsov wrote:
> These structures are going to be used from KVM code so let's make
> their names reflect their Hyper-V origin.
> 
> Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
> Reviewed-by: Roman Kagan <rkagan@...tuozzo.com>
> ---
>  arch/x86/hyperv/hv_apic.c          | 12 ++++++------
>  arch/x86/include/asm/hyperv-tlfs.h | 16 +++++++++-------
>  2 files changed, 15 insertions(+), 13 deletions(-)
> 
> diff --git a/arch/x86/hyperv/hv_apic.c b/arch/x86/hyperv/hv_apic.c
> index 402338365651..49284e1506b1 100644
> --- a/arch/x86/hyperv/hv_apic.c
> +++ b/arch/x86/hyperv/hv_apic.c
> @@ -93,14 +93,14 @@ static void hv_apic_eoi_write(u32 reg, u32 val)
>   */
>  static bool __send_ipi_mask_ex(const struct cpumask *mask, int vector)
>  {
> -	struct ipi_arg_ex **arg;
> -	struct ipi_arg_ex *ipi_arg;
> +	struct hv_send_ipi_ex **arg;
> +	struct hv_send_ipi_ex *ipi_arg;
>  	unsigned long flags;
>  	int nr_bank = 0;
>  	int ret = 1;
>  
>  	local_irq_save(flags);
> -	arg = (struct ipi_arg_ex **)this_cpu_ptr(hyperv_pcpu_input_arg);
> +	arg = (struct hv_send_ipi_ex **)this_cpu_ptr(hyperv_pcpu_input_arg);
>  
>  	ipi_arg = *arg;
>  	if (unlikely(!ipi_arg))
> @@ -130,8 +130,8 @@ static bool __send_ipi_mask_ex(const struct cpumask *mask, int vector)
>  static bool __send_ipi_mask(const struct cpumask *mask, int vector)
>  {
>  	int cur_cpu, vcpu;
> -	struct ipi_arg_non_ex **arg;
> -	struct ipi_arg_non_ex *ipi_arg;
> +	struct hv_send_ipi **arg;
> +	struct hv_send_ipi *ipi_arg;
>  	int ret = 1;
>  	unsigned long flags;
>  
> @@ -148,7 +148,7 @@ static bool __send_ipi_mask(const struct cpumask *mask, int vector)
>  		return __send_ipi_mask_ex(mask, vector);
>  
>  	local_irq_save(flags);
> -	arg = (struct ipi_arg_non_ex **)this_cpu_ptr(hyperv_pcpu_input_arg);
> +	arg = (struct hv_send_ipi **)this_cpu_ptr(hyperv_pcpu_input_arg);
>  
>  	ipi_arg = *arg;
>  	if (unlikely(!ipi_arg))
> diff --git a/arch/x86/include/asm/hyperv-tlfs.h b/arch/x86/include/asm/hyperv-tlfs.h
> index 08e24f552030..d0554409a3de 100644
> --- a/arch/x86/include/asm/hyperv-tlfs.h
> +++ b/arch/x86/include/asm/hyperv-tlfs.h
> @@ -725,19 +725,21 @@ struct hv_enlightened_vmcs {
>  #define HV_STIMER_AUTOENABLE		(1ULL << 3)
>  #define HV_STIMER_SINT(config)		(__u8)(((config) >> 16) & 0x0F)
>  
> -struct ipi_arg_non_ex {
> -	u32 vector;
> -	u32 reserved;
> -	u64 cpu_mask;
> -};
> -
>  struct hv_vpset {
>  	u64 format;
>  	u64 valid_bank_mask;
>  	u64 bank_contents[];
>  };
>  
> -struct ipi_arg_ex {
> +/* HvCallSendSyntheticClusterIpi hypercall */
> +struct hv_send_ipi {
> +	u32 vector;
> +	u32 reserved;
> +	u64 cpu_mask;
> +};
> +
> +/* HvCallSendSyntheticClusterIpiEx hypercall */
> +struct hv_send_ipi_ex {
>  	u32 vector;
>  	u32 reserved;
>  	struct hv_vpset vp_set;
> 

This doesn't apply anymore, sorry.

Paolo