Signed-off-by: AKASHI Takahiro takahiro.akashi@linaro.org --- arch/arm/include/asm/kvm_asm.h | 1 + arch/arm/include/asm/kvm_host.h | 12 ++++++++++++ arch/arm/include/asm/kvm_mmu.h | 5 +++++ arch/arm/kvm/init.S | 6 ++++++ 4 files changed, 24 insertions(+)
diff --git a/arch/arm/include/asm/kvm_asm.h b/arch/arm/include/asm/kvm_asm.h index 25410b2..462babf 100644 --- a/arch/arm/include/asm/kvm_asm.h +++ b/arch/arm/include/asm/kvm_asm.h @@ -85,6 +85,7 @@ struct kvm_vcpu;
extern char __kvm_hyp_init[]; extern char __kvm_hyp_init_end[]; +extern char __kvm_hyp_reset[];
extern char __kvm_hyp_exit[]; extern char __kvm_hyp_exit_end[]; diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h index ca97764..6d38134 100644 --- a/arch/arm/include/asm/kvm_host.h +++ b/arch/arm/include/asm/kvm_host.h @@ -220,6 +220,18 @@ static inline void __cpu_init_hyp_mode(phys_addr_t boot_pgd_ptr, kvm_call_hyp((void*)hyp_stack_ptr, vector_ptr, pgd_ptr); }
+static inline void __cpu_reset_hyp_mode(phys_addr_t boot_pgd_ptr, + phys_addr_t phys_idmap_start, + unsigned long stub_vector_ptr, + unsigned long reset_func) +{ + /* + * TODO + * kvm_call_reset(boot_pgd_ptr, phys_idmap_start, stub_vector_ptr, + * reset_func); + */ +} + static inline int kvm_arch_dev_ioctl_check_extension(long ext) { return 0; diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h index bf0fe99..dc9543b 100644 --- a/arch/arm/include/asm/kvm_mmu.h +++ b/arch/arm/include/asm/kvm_mmu.h @@ -66,6 +66,7 @@ void kvm_mmu_free_memory_caches(struct kvm_vcpu *vcpu); phys_addr_t kvm_mmu_get_httbr(void); phys_addr_t kvm_mmu_get_boot_httbr(void); phys_addr_t kvm_get_idmap_vector(void); +phys_addr_t kvm_get_idmap_start(void); int kvm_mmu_init(void); void kvm_clear_hyp_idmap(void);
@@ -270,6 +271,10 @@ static inline void __kvm_flush_dcache_pud(pud_t pud) void kvm_set_way_flush(struct kvm_vcpu *vcpu); void kvm_toggle_cache(struct kvm_vcpu *vcpu, bool was_enabled);
+extern char __hyp_idmap_text_start[]; +#define kvm_virt_to_trampoline(x) \ + (TRAMPOLINE_VA + ((x) - __hyp_idmap_text_start)) + #endif /* !__ASSEMBLY__ */
#endif /* __ARM_KVM_MMU_H__ */ diff --git a/arch/arm/kvm/init.S b/arch/arm/kvm/init.S index 3988e72..9178c9a 100644 --- a/arch/arm/kvm/init.S +++ b/arch/arm/kvm/init.S @@ -156,4 +156,10 @@ target: @ We're now in the trampoline code, switch page tables .globl __kvm_hyp_init_end __kvm_hyp_init_end:
+ .globl __kvm_hyp_reset +__kvm_hyp_reset: + @ TODO + + eret + .popsection