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[v3,4/5] KVM: X86: Drop KVM_APIC_SHORT_MASK and KVM_APIC_DEST_MASK

Message ID 20191202201314.543-5-peterx@redhat.com (mailing list archive)
State New, archived
Headers show
Series KVM: X86: Cleanups on dest_mode and headers | expand

Commit Message

Peter Xu Dec. 2, 2019, 8:13 p.m. UTC
We have both APIC_SHORT_MASK and KVM_APIC_SHORT_MASK defined for the
shorthand mask.  Similarly, we have both APIC_DEST_MASK and
KVM_APIC_DEST_MASK defined for the destination mode mask.

Drop the KVM_APIC_* macros and replace the only user of them to use
the APIC_DEST_* macros instead.  At the meantime, move APIC_SHORT_MASK
and APIC_DEST_MASK from lapic.c to lapic.h.

Signed-off-by: Peter Xu <peterx@redhat.com>
---
 arch/x86/kvm/lapic.c | 3 ---
 arch/x86/kvm/lapic.h | 5 +++--
 arch/x86/kvm/svm.c   | 4 ++--
 3 files changed, 5 insertions(+), 7 deletions(-)

Comments

Vitaly Kuznetsov Dec. 3, 2019, 1:19 p.m. UTC | #1
Peter Xu <peterx@redhat.com> writes:

> We have both APIC_SHORT_MASK and KVM_APIC_SHORT_MASK defined for the
> shorthand mask.  Similarly, we have both APIC_DEST_MASK and
> KVM_APIC_DEST_MASK defined for the destination mode mask.
>
> Drop the KVM_APIC_* macros and replace the only user of them to use
> the APIC_DEST_* macros instead.  At the meantime, move APIC_SHORT_MASK
> and APIC_DEST_MASK from lapic.c to lapic.h.
>
> Signed-off-by: Peter Xu <peterx@redhat.com>
> ---
>  arch/x86/kvm/lapic.c | 3 ---
>  arch/x86/kvm/lapic.h | 5 +++--
>  arch/x86/kvm/svm.c   | 4 ++--
>  3 files changed, 5 insertions(+), 7 deletions(-)
>
> diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
> index 1eabe58bb6d5..805c18178bbf 100644
> --- a/arch/x86/kvm/lapic.c
> +++ b/arch/x86/kvm/lapic.c
> @@ -56,9 +56,6 @@
>  #define APIC_VERSION			(0x14UL | ((KVM_APIC_LVT_NUM - 1) << 16))
>  #define LAPIC_MMIO_LENGTH		(1 << 12)
>  /* followed define is not in apicdef.h */
> -#define APIC_SHORT_MASK			0xc0000
> -#define APIC_DEST_NOSHORT		0x0
> -#define APIC_DEST_MASK			0x800
>  #define MAX_APIC_VECTOR			256
>  #define APIC_VECTORS_PER_REG		32
>  
> diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
> index 0b9bbadd1f3c..5a9f29ed9a4b 100644
> --- a/arch/x86/kvm/lapic.h
> +++ b/arch/x86/kvm/lapic.h
> @@ -10,8 +10,9 @@
>  #define KVM_APIC_SIPI		1
>  #define KVM_APIC_LVT_NUM	6
>  
> -#define KVM_APIC_SHORT_MASK	0xc0000
> -#define KVM_APIC_DEST_MASK	0x800
> +#define APIC_SHORT_MASK			0xc0000
> +#define APIC_DEST_NOSHORT		0x0
> +#define APIC_DEST_MASK			0x800
>  
>  #define APIC_BUS_CYCLE_NS       1
>  #define APIC_BUS_FREQUENCY      (1000000000ULL / APIC_BUS_CYCLE_NS)
> diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
> index 362e874297e4..65a27a7e9cb1 100644
> --- a/arch/x86/kvm/svm.c
> +++ b/arch/x86/kvm/svm.c
> @@ -4519,9 +4519,9 @@ static int avic_incomplete_ipi_interception(struct vcpu_svm *svm)
>  		 */
>  		kvm_for_each_vcpu(i, vcpu, kvm) {
>  			bool m = kvm_apic_match_dest(vcpu, apic,
> -						     icrl & KVM_APIC_SHORT_MASK,
> +						     icrl & APIC_SHORT_MASK,
>  						     GET_APIC_DEST_FIELD(icrh),
> -						     icrl & KVM_APIC_DEST_MASK);
> +						     icrl & APIC_DEST_MASK);
>  
>  			if (m && !avic_vcpu_is_running(vcpu))
>  				kvm_vcpu_wake_up(vcpu);

Personal taste but I would've preserved KVM_ prefix. The patch itself
looks correct, so

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Peter Xu Dec. 3, 2019, 4:21 p.m. UTC | #2
On Tue, Dec 03, 2019 at 02:19:16PM +0100, Vitaly Kuznetsov wrote:
> > @@ -4519,9 +4519,9 @@ static int avic_incomplete_ipi_interception(struct vcpu_svm *svm)
> >  		 */
> >  		kvm_for_each_vcpu(i, vcpu, kvm) {
> >  			bool m = kvm_apic_match_dest(vcpu, apic,
> > -						     icrl & KVM_APIC_SHORT_MASK,
> > +						     icrl & APIC_SHORT_MASK,
> >  						     GET_APIC_DEST_FIELD(icrh),
> > -						     icrl & KVM_APIC_DEST_MASK);
> > +						     icrl & APIC_DEST_MASK);
> >  
> >  			if (m && !avic_vcpu_is_running(vcpu))
> >  				kvm_vcpu_wake_up(vcpu);
> 
> Personal taste but I would've preserved KVM_ prefix. The patch itself
> looks correct, so

KVM apic uses apicdefs.h a lot, so I was trying to match them (APIC_*)
with it.

> 
> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>

Thanks for the reviews,
diff mbox series

Patch

diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 1eabe58bb6d5..805c18178bbf 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -56,9 +56,6 @@ 
 #define APIC_VERSION			(0x14UL | ((KVM_APIC_LVT_NUM - 1) << 16))
 #define LAPIC_MMIO_LENGTH		(1 << 12)
 /* followed define is not in apicdef.h */
-#define APIC_SHORT_MASK			0xc0000
-#define APIC_DEST_NOSHORT		0x0
-#define APIC_DEST_MASK			0x800
 #define MAX_APIC_VECTOR			256
 #define APIC_VECTORS_PER_REG		32
 
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 0b9bbadd1f3c..5a9f29ed9a4b 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -10,8 +10,9 @@ 
 #define KVM_APIC_SIPI		1
 #define KVM_APIC_LVT_NUM	6
 
-#define KVM_APIC_SHORT_MASK	0xc0000
-#define KVM_APIC_DEST_MASK	0x800
+#define APIC_SHORT_MASK			0xc0000
+#define APIC_DEST_NOSHORT		0x0
+#define APIC_DEST_MASK			0x800
 
 #define APIC_BUS_CYCLE_NS       1
 #define APIC_BUS_FREQUENCY      (1000000000ULL / APIC_BUS_CYCLE_NS)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 362e874297e4..65a27a7e9cb1 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -4519,9 +4519,9 @@  static int avic_incomplete_ipi_interception(struct vcpu_svm *svm)
 		 */
 		kvm_for_each_vcpu(i, vcpu, kvm) {
 			bool m = kvm_apic_match_dest(vcpu, apic,
-						     icrl & KVM_APIC_SHORT_MASK,
+						     icrl & APIC_SHORT_MASK,
 						     GET_APIC_DEST_FIELD(icrh),
-						     icrl & KVM_APIC_DEST_MASK);
+						     icrl & APIC_DEST_MASK);
 
 			if (m && !avic_vcpu_is_running(vcpu))
 				kvm_vcpu_wake_up(vcpu);