diff mbox

[v4,37/40] KVM: arm/arm64: Move arm64-only vgic-v2-sr.c file to arm64

Message ID 20180215210332.8648-38-christoffer.dall@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Christoffer Dall Feb. 15, 2018, 9:03 p.m. UTC
The vgic-v2-sr.c file now only contains the logic to replay unaligned
accesses to the virtual CPU interface on 16K and 64K page systems, which
is only relevant on 64-bit platforms.  Therefore move this file to the
arm64 KVM tree, remove the compile directive from the 32-bit side
makefile, and remove the ifdef in the C file.

Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/kvm/hyp/Makefile                         | 1 -
 arch/arm64/kvm/hyp/Makefile                       | 2 +-
 {virt/kvm/arm => arch/arm64/kvm}/hyp/vgic-v2-sr.c | 2 --
 3 files changed, 1 insertion(+), 4 deletions(-)
 rename {virt/kvm/arm => arch/arm64/kvm}/hyp/vgic-v2-sr.c (98%)

Comments

Marc Zyngier Feb. 22, 2018, 12:33 p.m. UTC | #1
On 15/02/18 21:03, Christoffer Dall wrote:
> The vgic-v2-sr.c file now only contains the logic to replay unaligned
> accesses to the virtual CPU interface on 16K and 64K page systems, which
> is only relevant on 64-bit platforms.  Therefore move this file to the
> arm64 KVM tree, remove the compile directive from the 32-bit side
> makefile, and remove the ifdef in the C file.
> 
> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
> ---
>  arch/arm/kvm/hyp/Makefile                         | 1 -
>  arch/arm64/kvm/hyp/Makefile                       | 2 +-
>  {virt/kvm/arm => arch/arm64/kvm}/hyp/vgic-v2-sr.c | 2 --
>  3 files changed, 1 insertion(+), 4 deletions(-)
>  rename {virt/kvm/arm => arch/arm64/kvm}/hyp/vgic-v2-sr.c (98%)
> 
> diff --git a/arch/arm/kvm/hyp/Makefile b/arch/arm/kvm/hyp/Makefile
> index 5638ce0c9524..1964111c984a 100644
> --- a/arch/arm/kvm/hyp/Makefile
> +++ b/arch/arm/kvm/hyp/Makefile
> @@ -7,7 +7,6 @@ ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING
>  
>  KVM=../../../../virt/kvm
>  
> -obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o
>  obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o
>  obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o
>  
> diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile
> index f04400d494b7..7e8d41210288 100644
> --- a/arch/arm64/kvm/hyp/Makefile
> +++ b/arch/arm64/kvm/hyp/Makefile
> @@ -7,10 +7,10 @@ ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING
>  
>  KVM=../../../../virt/kvm
>  
> -obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o
>  obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o
>  obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o
>  
> +obj-$(CONFIG_KVM_ARM_HOST) += vgic-v2-sr.o

How about renaming the file to vgic-v2-cpuif-proxy.c? It doesn't have
anything to do with save/restore anymore...

>  obj-$(CONFIG_KVM_ARM_HOST) += sysreg-sr.o
>  obj-$(CONFIG_KVM_ARM_HOST) += debug-sr.o
>  obj-$(CONFIG_KVM_ARM_HOST) += entry.o
> diff --git a/virt/kvm/arm/hyp/vgic-v2-sr.c b/arch/arm64/kvm/hyp/vgic-v2-sr.c
> similarity index 98%
> rename from virt/kvm/arm/hyp/vgic-v2-sr.c
> rename to arch/arm64/kvm/hyp/vgic-v2-sr.c
> index 0bbafdfd4adb..97f357ea9c72 100644
> --- a/virt/kvm/arm/hyp/vgic-v2-sr.c
> +++ b/arch/arm64/kvm/hyp/vgic-v2-sr.c
> @@ -23,7 +23,6 @@
>  #include <asm/kvm_hyp.h>
>  #include <asm/kvm_mmu.h>
>  
> -#ifdef CONFIG_ARM64
>  /*
>   * __vgic_v2_perform_cpuif_access -- perform a GICV access on behalf of the
>   *				     guest.
> @@ -77,4 +76,3 @@ int __hyp_text __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu)
>  
>  	return 1;
>  }
> -#endif
> 

Otherwise looks good.

	M.
Christoffer Dall Feb. 22, 2018, 2:37 p.m. UTC | #2
On Thu, Feb 22, 2018 at 12:33:20PM +0000, Marc Zyngier wrote:
> On 15/02/18 21:03, Christoffer Dall wrote:
> > The vgic-v2-sr.c file now only contains the logic to replay unaligned
> > accesses to the virtual CPU interface on 16K and 64K page systems, which
> > is only relevant on 64-bit platforms.  Therefore move this file to the
> > arm64 KVM tree, remove the compile directive from the 32-bit side
> > makefile, and remove the ifdef in the C file.
> > 
> > Reviewed-by: Andre Przywara <andre.przywara@arm.com>
> > Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
> > ---
> >  arch/arm/kvm/hyp/Makefile                         | 1 -
> >  arch/arm64/kvm/hyp/Makefile                       | 2 +-
> >  {virt/kvm/arm => arch/arm64/kvm}/hyp/vgic-v2-sr.c | 2 --
> >  3 files changed, 1 insertion(+), 4 deletions(-)
> >  rename {virt/kvm/arm => arch/arm64/kvm}/hyp/vgic-v2-sr.c (98%)
> > 
> > diff --git a/arch/arm/kvm/hyp/Makefile b/arch/arm/kvm/hyp/Makefile
> > index 5638ce0c9524..1964111c984a 100644
> > --- a/arch/arm/kvm/hyp/Makefile
> > +++ b/arch/arm/kvm/hyp/Makefile
> > @@ -7,7 +7,6 @@ ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING
> >  
> >  KVM=../../../../virt/kvm
> >  
> > -obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o
> >  obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o
> >  obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o
> >  
> > diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile
> > index f04400d494b7..7e8d41210288 100644
> > --- a/arch/arm64/kvm/hyp/Makefile
> > +++ b/arch/arm64/kvm/hyp/Makefile
> > @@ -7,10 +7,10 @@ ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING
> >  
> >  KVM=../../../../virt/kvm
> >  
> > -obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o
> >  obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o
> >  obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o
> >  
> > +obj-$(CONFIG_KVM_ARM_HOST) += vgic-v2-sr.o
> 
> How about renaming the file to vgic-v2-cpuif-proxy.c? It doesn't have
> anything to do with save/restore anymore...
> 

Yes, good idea.

> >  obj-$(CONFIG_KVM_ARM_HOST) += sysreg-sr.o
> >  obj-$(CONFIG_KVM_ARM_HOST) += debug-sr.o
> >  obj-$(CONFIG_KVM_ARM_HOST) += entry.o
> > diff --git a/virt/kvm/arm/hyp/vgic-v2-sr.c b/arch/arm64/kvm/hyp/vgic-v2-sr.c
> > similarity index 98%
> > rename from virt/kvm/arm/hyp/vgic-v2-sr.c
> > rename to arch/arm64/kvm/hyp/vgic-v2-sr.c
> > index 0bbafdfd4adb..97f357ea9c72 100644
> > --- a/virt/kvm/arm/hyp/vgic-v2-sr.c
> > +++ b/arch/arm64/kvm/hyp/vgic-v2-sr.c
> > @@ -23,7 +23,6 @@
> >  #include <asm/kvm_hyp.h>
> >  #include <asm/kvm_mmu.h>
> >  
> > -#ifdef CONFIG_ARM64
> >  /*
> >   * __vgic_v2_perform_cpuif_access -- perform a GICV access on behalf of the
> >   *				     guest.
> > @@ -77,4 +76,3 @@ int __hyp_text __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu)
> >  
> >  	return 1;
> >  }
> > -#endif
> > 
> 
> Otherwise looks good.
> 
Thanks,
-Christoffer
diff mbox

Patch

diff --git a/arch/arm/kvm/hyp/Makefile b/arch/arm/kvm/hyp/Makefile
index 5638ce0c9524..1964111c984a 100644
--- a/arch/arm/kvm/hyp/Makefile
+++ b/arch/arm/kvm/hyp/Makefile
@@ -7,7 +7,6 @@  ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING
 
 KVM=../../../../virt/kvm
 
-obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o
 
diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile
index f04400d494b7..7e8d41210288 100644
--- a/arch/arm64/kvm/hyp/Makefile
+++ b/arch/arm64/kvm/hyp/Makefile
@@ -7,10 +7,10 @@  ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING
 
 KVM=../../../../virt/kvm
 
-obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o
 
+obj-$(CONFIG_KVM_ARM_HOST) += vgic-v2-sr.o
 obj-$(CONFIG_KVM_ARM_HOST) += sysreg-sr.o
 obj-$(CONFIG_KVM_ARM_HOST) += debug-sr.o
 obj-$(CONFIG_KVM_ARM_HOST) += entry.o
diff --git a/virt/kvm/arm/hyp/vgic-v2-sr.c b/arch/arm64/kvm/hyp/vgic-v2-sr.c
similarity index 98%
rename from virt/kvm/arm/hyp/vgic-v2-sr.c
rename to arch/arm64/kvm/hyp/vgic-v2-sr.c
index 0bbafdfd4adb..97f357ea9c72 100644
--- a/virt/kvm/arm/hyp/vgic-v2-sr.c
+++ b/arch/arm64/kvm/hyp/vgic-v2-sr.c
@@ -23,7 +23,6 @@ 
 #include <asm/kvm_hyp.h>
 #include <asm/kvm_mmu.h>
 
-#ifdef CONFIG_ARM64
 /*
  * __vgic_v2_perform_cpuif_access -- perform a GICV access on behalf of the
  *				     guest.
@@ -77,4 +76,3 @@  int __hyp_text __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu)
 
 	return 1;
 }
-#endif