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| author | Anup Patel <apatel@ventanamicro.com> | 2023-06-15 10:33:52 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2023-06-19 19:57:48 +0300 |
| commit | db8b7e97d6137a28b2bfc07e591d54da268f0c36 (patch) | |
| tree | d623142b70e2f3b9861c715738694986fdd9db9b /arch/riscv/include | |
| parent | 289a007b98b06d9ce4be24e2dda43f6821687e70 (diff) | |
| download | linux-db8b7e97d6137a28b2bfc07e591d54da268f0c36.tar.xz | |
RISC-V: KVM: Add in-kernel virtualization of AIA IMSIC
We can have AIA IMSIC support for both HS-level and VS-level but
the VS-level IMSICs are optional. We use the VS-level IMSICs for
Guest/VM whenever available otherwise we fallback to software
emulation of AIA IMSIC.
This patch adds in-kernel virtualization of AIA IMSIC.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Diffstat (limited to 'arch/riscv/include')
| -rw-r--r-- | arch/riscv/include/asm/kvm_aia.h | 46 |
1 files changed, 10 insertions, 36 deletions
diff --git a/arch/riscv/include/asm/kvm_aia.h b/arch/riscv/include/asm/kvm_aia.h index ba939c0054aa..a4f6ebf90e31 100644 --- a/arch/riscv/include/asm/kvm_aia.h +++ b/arch/riscv/include/asm/kvm_aia.h @@ -90,44 +90,18 @@ DECLARE_STATIC_KEY_FALSE(kvm_riscv_aia_available); extern struct kvm_device_ops kvm_riscv_aia_device_ops; -static inline void kvm_riscv_vcpu_aia_imsic_release(struct kvm_vcpu *vcpu) -{ -} - -static inline int kvm_riscv_vcpu_aia_imsic_update(struct kvm_vcpu *vcpu) -{ - return 1; -} +void kvm_riscv_vcpu_aia_imsic_release(struct kvm_vcpu *vcpu); +int kvm_riscv_vcpu_aia_imsic_update(struct kvm_vcpu *vcpu); #define KVM_RISCV_AIA_IMSIC_TOPEI (ISELECT_MASK + 1) -static inline int kvm_riscv_vcpu_aia_imsic_rmw(struct kvm_vcpu *vcpu, - unsigned long isel, - unsigned long *val, - unsigned long new_val, - unsigned long wr_mask) -{ - return 0; -} - -static inline void kvm_riscv_vcpu_aia_imsic_reset(struct kvm_vcpu *vcpu) -{ -} - -static inline int kvm_riscv_vcpu_aia_imsic_inject(struct kvm_vcpu *vcpu, - u32 guest_index, u32 offset, - u32 iid) -{ - return 0; -} - -static inline int kvm_riscv_vcpu_aia_imsic_init(struct kvm_vcpu *vcpu) -{ - return 0; -} - -static inline void kvm_riscv_vcpu_aia_imsic_cleanup(struct kvm_vcpu *vcpu) -{ -} +int kvm_riscv_vcpu_aia_imsic_rmw(struct kvm_vcpu *vcpu, unsigned long isel, + unsigned long *val, unsigned long new_val, + unsigned long wr_mask); +void kvm_riscv_vcpu_aia_imsic_reset(struct kvm_vcpu *vcpu); +int kvm_riscv_vcpu_aia_imsic_inject(struct kvm_vcpu *vcpu, + u32 guest_index, u32 offset, u32 iid); +int kvm_riscv_vcpu_aia_imsic_init(struct kvm_vcpu *vcpu); +void kvm_riscv_vcpu_aia_imsic_cleanup(struct kvm_vcpu *vcpu); int kvm_riscv_aia_aplic_set_attr(struct kvm *kvm, unsigned long type, u32 v); int kvm_riscv_aia_aplic_get_attr(struct kvm *kvm, unsigned long type, u32 *v); |