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From: Maxim Levitsky <mlevitsk@redhat.com>
To: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: pbonzini@redhat.com, seanjc@google.com, joro@8bytes.org,
	jon.grimm@amd.com, wei.huang2@amd.com, terry.bowman@amd.com
Subject: Re: [RFCv2 PATCH 02/12] KVM: x86: lapic: Rename [GET/SET]_APIC_DEST_FIELD to [GET/SET]_XAPIC_DEST_FIELD
Date: Thu, 24 Mar 2022 12:30:03 +0200	[thread overview]
Message-ID: <0f12fa4d8aa43e6f346c1f2d73bb0b67e19bd494.camel@redhat.com> (raw)
In-Reply-To: <20220308163926.563994-3-suravee.suthikulpanit@amd.com>

On Tue, 2022-03-08 at 10:39 -0600, Suravee Suthikulpanit wrote:
> To signify that the macros only support 8-bit xAPIC destination ID.
> 
> Suggested-by: Maxim Levitsky <mlevitsk@redhat.com>
> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
> ---
>  arch/x86/hyperv/hv_apic.c      | 2 +-
>  arch/x86/include/asm/apicdef.h | 4 ++--
>  arch/x86/kernel/apic/apic.c    | 2 +-
>  arch/x86/kernel/apic/ipi.c     | 2 +-
>  arch/x86/kvm/lapic.c           | 2 +-
>  arch/x86/kvm/svm/avic.c        | 2 +-
>  6 files changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/x86/hyperv/hv_apic.c b/arch/x86/hyperv/hv_apic.c
> index db2d92fb44da..fb8b2c088681 100644
> --- a/arch/x86/hyperv/hv_apic.c
> +++ b/arch/x86/hyperv/hv_apic.c
> @@ -46,7 +46,7 @@ static void hv_apic_icr_write(u32 low, u32 id)
>  {
>  	u64 reg_val;
>  
> -	reg_val = SET_APIC_DEST_FIELD(id);
> +	reg_val = SET_XAPIC_DEST_FIELD(id);
>  	reg_val = reg_val << 32;
>  	reg_val |= low;
>  
> diff --git a/arch/x86/include/asm/apicdef.h b/arch/x86/include/asm/apicdef.h
> index 5716f22f81ac..863c2cad5872 100644
> --- a/arch/x86/include/asm/apicdef.h
> +++ b/arch/x86/include/asm/apicdef.h
> @@ -89,8 +89,8 @@
>  #define		APIC_DM_EXTINT		0x00700
>  #define		APIC_VECTOR_MASK	0x000FF
>  #define	APIC_ICR2	0x310
> -#define		GET_APIC_DEST_FIELD(x)	(((x) >> 24) & 0xFF)
> -#define		SET_APIC_DEST_FIELD(x)	((x) << 24)
> +#define		GET_XAPIC_DEST_FIELD(x)	(((x) >> 24) & 0xFF)
> +#define		SET_XAPIC_DEST_FIELD(x)	((x) << 24)
>  #define	APIC_LVTT	0x320
>  #define	APIC_LVTTHMR	0x330
>  #define	APIC_LVTPC	0x340
> diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
> index b70344bf6600..e6b754e43ed7 100644
> --- a/arch/x86/kernel/apic/apic.c
> +++ b/arch/x86/kernel/apic/apic.c
> @@ -275,7 +275,7 @@ void native_apic_icr_write(u32 low, u32 id)
>  	unsigned long flags;
>  
>  	local_irq_save(flags);
> -	apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(id));
> +	apic_write(APIC_ICR2, SET_XAPIC_DEST_FIELD(id));
>  	apic_write(APIC_ICR, low);
>  	local_irq_restore(flags);
>  }
> diff --git a/arch/x86/kernel/apic/ipi.c b/arch/x86/kernel/apic/ipi.c
> index d1fb874fbe64..2a6509e8c840 100644
> --- a/arch/x86/kernel/apic/ipi.c
> +++ b/arch/x86/kernel/apic/ipi.c
> @@ -99,7 +99,7 @@ void native_send_call_func_ipi(const struct cpumask *mask)
>  
>  static inline int __prepare_ICR2(unsigned int mask)
>  {
> -	return SET_APIC_DEST_FIELD(mask);
> +	return SET_XAPIC_DEST_FIELD(mask);
>  }
>  
>  static inline void __xapic_wait_icr_idle(void)
> diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
> index 9322e6340a74..03d1b6325eb8 100644
> --- a/arch/x86/kvm/lapic.c
> +++ b/arch/x86/kvm/lapic.c
> @@ -1286,7 +1286,7 @@ void kvm_apic_send_ipi(struct kvm_lapic *apic, u32 icr_low, u32 icr_high)
>  	if (apic_x2apic_mode(apic))
>  		irq.dest_id = icr_high;
>  	else
> -		irq.dest_id = GET_APIC_DEST_FIELD(icr_high);
> +		irq.dest_id = GET_XAPIC_DEST_FIELD(icr_high);
>  
>  	trace_kvm_apic_ipi(icr_low, irq.dest_id);
>  
> diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c
> index f07956f15d3b..60cd346acd1c 100644
> --- a/arch/x86/kvm/svm/avic.c
> +++ b/arch/x86/kvm/svm/avic.c
> @@ -299,7 +299,7 @@ static void avic_kick_target_vcpus(struct kvm *kvm, struct kvm_lapic *source,
>  	 */
>  	kvm_for_each_vcpu(i, vcpu, kvm) {
>  		if (kvm_apic_match_dest(vcpu, source, icrl & APIC_SHORT_MASK,
> -					GET_APIC_DEST_FIELD(icrh),
> +					GET_XAPIC_DEST_FIELD(icrh),
>  					icrl & APIC_DEST_MASK)) {
>  			vcpu->arch.apic->irr_pending = true;
>  			svm_complete_interrupt_delivery(vcpu,


Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>

Best regards,
	Maxim Levitsky


  reply	other threads:[~2022-03-24 10:30 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-08 16:39 [RFCv2 PATCH 00/12] Introducing AMD x2APIC Virtualization (x2AVIC) support Suravee Suthikulpanit
2022-03-08 16:39 ` [RFCv2 PATCH 01/12] x86/cpufeatures: Introduce x2AVIC CPUID bit Suravee Suthikulpanit
2022-03-08 16:39 ` [RFCv2 PATCH 02/12] KVM: x86: lapic: Rename [GET/SET]_APIC_DEST_FIELD to [GET/SET]_XAPIC_DEST_FIELD Suravee Suthikulpanit
2022-03-24 10:30   ` Maxim Levitsky [this message]
2022-03-08 16:39 ` [RFCv2 PATCH 03/12] KVM: SVM: Detect X2APIC virtualization (x2AVIC) support Suravee Suthikulpanit
2022-03-24 10:53   ` Maxim Levitsky
2022-03-08 16:39 ` [RFCv2 PATCH 04/12] KVM: SVM: Update max number of vCPUs supported for x2AVIC mode Suravee Suthikulpanit
2022-03-24 11:13   ` Maxim Levitsky
2022-03-08 16:39 ` [RFCv2 PATCH 05/12] KVM: SVM: Update avic_kick_target_vcpus to support 32-bit APIC ID Suravee Suthikulpanit
2022-03-24 11:36   ` Maxim Levitsky
2022-03-08 16:39 ` [RFCv2 PATCH 06/12] KVM: SVM: Do not update logical APIC ID table when in x2APIC mode Suravee Suthikulpanit
2022-03-24 11:37   ` Maxim Levitsky
2022-03-08 16:39 ` [RFCv2 PATCH 07/12] KVM: SVM: Introduce helper function kvm_get_apic_id Suravee Suthikulpanit
2022-03-24 14:14   ` Maxim Levitsky
2022-04-05  3:58     ` Suravee Suthikulpanit
2022-04-05  9:36       ` Suravee Suthikulpanit
2022-03-08 16:39 ` [RFCv2 PATCH 08/12] KVM: SVM: Adding support for configuring x2APIC MSRs interception Suravee Suthikulpanit
2022-03-24 15:19   ` Maxim Levitsky
2022-04-05  1:45     ` Suravee Suthikulpanit
2022-03-08 16:39 ` [RFCv2 PATCH 09/12] KVM: SVM: Refresh AVIC settings when changing APIC mode Suravee Suthikulpanit
2022-03-24 15:35   ` Maxim Levitsky
2022-03-31  4:04     ` Suravee Suthikulpanit
2022-03-08 16:39 ` [RFCv2 PATCH 10/12] KVM: SVM: Introduce helper functions to (de)activate AVIC and x2AVIC Suravee Suthikulpanit
2022-03-24 15:40   ` Maxim Levitsky
2022-03-08 16:39 ` [RFCv2 PATCH 11/12] KVM: SVM: Do not throw warning when calling avic_vcpu_load on a running vcpu Suravee Suthikulpanit
2022-03-24 15:42   ` Maxim Levitsky
2022-03-08 16:39 ` [RFCv2 PATCH 12/12] KVM: SVM: Do not inhibit APICv when x2APIC is present Suravee Suthikulpanit

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