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| author | Marc Zyngier <marc.zyngier@arm.com> | 2015-06-12 13:06:37 +0200 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2015-06-12 16:12:08 +0200 |
| commit | 8a14849b4a355278f0b7baf6e2da7dc7144a23e8 (patch) | |
| tree | 2d674e0345a876b1c0008c644c08e562c8cf8c16 /arch/arm64/include | |
| parent | arm64: alternative: Introduce feature for GICv3 CPU interface (diff) | |
| download | linux-8a14849b4a355278f0b7baf6e2da7dc7144a23e8.tar.xz linux-8a14849b4a355278f0b7baf6e2da7dc7144a23e8.zip | |
arm64: KVM: Switch vgic save/restore to alternative_insn
So far, we configured the world-switch by having a small array
of pointers to the save and restore functions, depending on the
GIC used on the platform.
Loading these values each time is a bit silly (they never change),
and it makes sense to rely on the instruction patching instead.
This leads to a nice cleanup of the code.
Acked-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/kvm_asm.h | 5 | ||||
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 23 |
2 files changed, 0 insertions, 28 deletions
diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h index 4f7310fa77f0..d13bc5eb688c 100644 --- a/arch/arm64/include/asm/kvm_asm.h +++ b/arch/arm64/include/asm/kvm_asm.h @@ -132,11 +132,6 @@ extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu); extern u64 __vgic_v3_get_ich_vtr_el2(void); -extern char __save_vgic_v2_state[]; -extern char __restore_vgic_v2_state[]; -extern char __save_vgic_v3_state[]; -extern char __restore_vgic_v3_state[]; - #endif #endif /* __ARM_KVM_ASM_H__ */ diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index f0f58c9beec0..2709db2a7eac 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -221,29 +221,6 @@ struct vgic_sr_vectors { void *restore_vgic; }; -static inline void vgic_arch_setup(const struct vgic_params *vgic) -{ - extern struct vgic_sr_vectors __vgic_sr_vectors; - - switch(vgic->type) - { - case VGIC_V2: - __vgic_sr_vectors.save_vgic = __save_vgic_v2_state; - __vgic_sr_vectors.restore_vgic = __restore_vgic_v2_state; - break; - -#ifdef CONFIG_ARM_GIC_V3 - case VGIC_V3: - __vgic_sr_vectors.save_vgic = __save_vgic_v3_state; - __vgic_sr_vectors.restore_vgic = __restore_vgic_v3_state; - break; -#endif - - default: - BUG(); - } -} - static inline void kvm_arch_hardware_disable(void) {} static inline void kvm_arch_hardware_unsetup(void) {} static inline void kvm_arch_sync_events(struct kvm *kvm) {} |