| Message ID | 20221102231911.3107438-24-seanjc@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: Rework kvm_init() and hardware enabling | expand |
On Thu, Nov 3, 2022 at 4:49 AM Sean Christopherson <seanjc@google.com> 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@google.com> For KVM RISC-V: Acked-by: Anup Patel <anup@brainfault.org> 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 >
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;
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@google.com> --- 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(-)