diff options
| -rw-r--r-- | arch/arm/include/asm/kvm_asm.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/kvm_host.h | 8 | ||||
| -rw-r--r-- | arch/arm/kvm/arm.c | 3 | ||||
| -rw-r--r-- | arch/arm/kvm/init.S | 15 | ||||
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 3 |
5 files changed, 24 insertions, 7 deletions
diff --git a/arch/arm/include/asm/kvm_asm.h b/arch/arm/include/asm/kvm_asm.h index 3d5a5cd071bd..58faff5f1eb2 100644 --- a/arch/arm/include/asm/kvm_asm.h +++ b/arch/arm/include/asm/kvm_asm.h @@ -66,6 +66,8 @@ extern void __kvm_tlb_flush_vmid(struct kvm *kvm); extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu); extern void __init_stage2_translation(void); + +extern void __kvm_hyp_reset(unsigned long); #endif #endif /* __ARM_KVM_ASM_H__ */ diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h index eafbfd5ad34a..58d0b69e7428 100644 --- a/arch/arm/include/asm/kvm_host.h +++ b/arch/arm/include/asm/kvm_host.h @@ -266,12 +266,10 @@ static inline void __cpu_init_stage2(void) kvm_call_hyp(__init_stage2_translation); } -static inline void __cpu_reset_hyp_mode(phys_addr_t phys_idmap_start) +static inline void __cpu_reset_hyp_mode(unsigned long vector_ptr, + phys_addr_t phys_idmap_start) { - /* - * TODO - * kvm_call_reset(phys_idmap_start); - */ + kvm_call_hyp((void *)virt_to_idmap(__kvm_hyp_reset), vector_ptr); } static inline int kvm_arch_dev_ioctl_check_extension(long ext) diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index 9b8c53798f50..7cf266c502d6 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -1074,7 +1074,8 @@ static void cpu_hyp_reinit(void) static void cpu_hyp_reset(void) { if (!is_kernel_in_hyp_mode()) - __cpu_reset_hyp_mode(kvm_get_idmap_start()); + __cpu_reset_hyp_mode(hyp_default_vectors, + kvm_get_idmap_start()); } static void _kvm_arch_hardware_enable(void *discard) diff --git a/arch/arm/kvm/init.S b/arch/arm/kvm/init.S index b82a99dcfb61..bf89c919efc1 100644 --- a/arch/arm/kvm/init.S +++ b/arch/arm/kvm/init.S @@ -112,6 +112,21 @@ __do_hyp_init: eret + @ r0 : stub vectors address +ENTRY(__kvm_hyp_reset) + /* We're now in idmap, disable MMU */ + mrc p15, 4, r1, c1, c0, 0 @ HSCTLR + ldr r2, =(HSCTLR_M | HSCTLR_A | HSCTLR_C | HSCTLR_I) + bic r1, r1, r2 + mcr p15, 4, r1, c1, c0, 0 @ HSCTLR + + /* Install stub vectors */ + mcr p15, 4, r0, c12, c0, 0 @ HVBAR + isb + + eret +ENDPROC(__kvm_hyp_reset) + .ltorg .globl __kvm_hyp_init_end diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 6731d4e1c746..69d5cc2d2e17 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -359,7 +359,8 @@ static inline void __cpu_init_hyp_mode(phys_addr_t pgd_ptr, } void __kvm_hyp_teardown(void); -static inline void __cpu_reset_hyp_mode(phys_addr_t phys_idmap_start) +static inline void __cpu_reset_hyp_mode(unsigned long vector_ptr, + phys_addr_t phys_idmap_start) { kvm_call_hyp(__kvm_hyp_teardown, phys_idmap_start); } |