On Thu, Nov 3, 2022 at 4:49 AM Sean Christopherson <seanjc@xxxxxxxxxx> wrote:
>
> Now that KVM setup is handled directly in riscv_kvm_init(), tag functions
> and data that are used/set only during init with __init/__ro_after_init.
>
> Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
For KVM RISC-V:
Acked-by: Anup Patel <anup@xxxxxxxxxxxxxx>
Thanks,
Anup
> ---
> arch/riscv/include/asm/kvm_host.h | 6 +++---
> arch/riscv/kvm/mmu.c | 12 ++++++------
> arch/riscv/kvm/vmid.c | 4 ++--
> 3 files changed, 11 insertions(+), 11 deletions(-)
>
> diff --git a/arch/riscv/include/asm/kvm_host.h b/arch/riscv/include/asm/kvm_host.h
> index 8c771fc4f5d2..778ff0f282b7 100644
> --- a/arch/riscv/include/asm/kvm_host.h
> +++ b/arch/riscv/include/asm/kvm_host.h
> @@ -295,11 +295,11 @@ int kvm_riscv_gstage_map(struct kvm_vcpu *vcpu,
> int kvm_riscv_gstage_alloc_pgd(struct kvm *kvm);
> void kvm_riscv_gstage_free_pgd(struct kvm *kvm);
> void kvm_riscv_gstage_update_hgatp(struct kvm_vcpu *vcpu);
> -void kvm_riscv_gstage_mode_detect(void);
> -unsigned long kvm_riscv_gstage_mode(void);
> +void __init kvm_riscv_gstage_mode_detect(void);
> +unsigned long __init kvm_riscv_gstage_mode(void);
> int kvm_riscv_gstage_gpa_bits(void);
>
> -void kvm_riscv_gstage_vmid_detect(void);
> +void __init kvm_riscv_gstage_vmid_detect(void);
> unsigned long kvm_riscv_gstage_vmid_bits(void);
> int kvm_riscv_gstage_vmid_init(struct kvm *kvm);
> bool kvm_riscv_gstage_vmid_ver_changed(struct kvm_vmid *vmid);
> diff --git a/arch/riscv/kvm/mmu.c b/arch/riscv/kvm/mmu.c
> index 3620ecac2fa1..f42a34c7879a 100644
> --- a/arch/riscv/kvm/mmu.c
> +++ b/arch/riscv/kvm/mmu.c
> @@ -20,12 +20,12 @@
> #include <asm/pgtable.h>
>
> #ifdef CONFIG_64BIT
> -static unsigned long gstage_mode = (HGATP_MODE_SV39X4 << HGATP_MODE_SHIFT);
> -static unsigned long gstage_pgd_levels = 3;
> +static unsigned long gstage_mode __ro_after_init = (HGATP_MODE_SV39X4 << HGATP_MODE_SHIFT);
> +static unsigned long gstage_pgd_levels __ro_after_init = 3;
> #define gstage_index_bits 9
> #else
> -static unsigned long gstage_mode = (HGATP_MODE_SV32X4 << HGATP_MODE_SHIFT);
> -static unsigned long gstage_pgd_levels = 2;
> +static unsigned long gstage_mode __ro_after_init = (HGATP_MODE_SV32X4 << HGATP_MODE_SHIFT);
> +static unsigned long gstage_pgd_levels __ro_after_init = 2;
> #define gstage_index_bits 10
> #endif
>
> @@ -760,7 +760,7 @@ void kvm_riscv_gstage_update_hgatp(struct kvm_vcpu *vcpu)
> kvm_riscv_local_hfence_gvma_all();
> }
>
> -void kvm_riscv_gstage_mode_detect(void)
> +void __init kvm_riscv_gstage_mode_detect(void)
> {
> #ifdef CONFIG_64BIT
> /* Try Sv57x4 G-stage mode */
> @@ -784,7 +784,7 @@ void kvm_riscv_gstage_mode_detect(void)
> #endif
> }
>
> -unsigned long kvm_riscv_gstage_mode(void)
> +unsigned long __init kvm_riscv_gstage_mode(void)
> {
> return gstage_mode >> HGATP_MODE_SHIFT;
> }
> diff --git a/arch/riscv/kvm/vmid.c b/arch/riscv/kvm/vmid.c
> index 6cd93995fb65..5246da1c9167 100644
> --- a/arch/riscv/kvm/vmid.c
> +++ b/arch/riscv/kvm/vmid.c
> @@ -17,10 +17,10 @@
>
> static unsigned long vmid_version = 1;
> static unsigned long vmid_next;
> -static unsigned long vmid_bits;
> +static unsigned long vmid_bits __ro_after_init;
> static DEFINE_SPINLOCK(vmid_lock);
>
> -void kvm_riscv_gstage_vmid_detect(void)
> +void __init kvm_riscv_gstage_vmid_detect(void)
> {
> unsigned long old;
>
> --
> 2.38.1.431.g37b22c650d-goog
>
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