diff options
Diffstat (limited to 'arch')
121 files changed, 7950 insertions, 3150 deletions
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index 9150f9732785..7c711ba61417 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -422,7 +422,17 @@ dtb_check_done: cmp r0, #HYP_MODE bne 1f - bl __hyp_get_vectors + /* + * Compute the address of the hyp vectors after relocation. + * This requires some arithmetic since we cannot directly + * reference __hyp_stub_vectors in a PC-relative way. + * Call __hyp_set_vectors with the new address so that we + * can HVC again after the copy. + */ +0: adr r0, 0b + movw r1, #:lower16:__hyp_stub_vectors - 0b + movt r1, #:upper16:__hyp_stub_vectors - 0b + add r0, r0, r1 sub r0, r0, r5 add r0, r0, r10 bl __hyp_set_vectors diff --git a/arch/arm/include/asm/kvm_asm.h b/arch/arm/include/asm/kvm_asm.h index 8ef05381984b..14d68a4d826f 100644 --- a/arch/arm/include/asm/kvm_asm.h +++ b/arch/arm/include/asm/kvm_asm.h @@ -33,7 +33,7 @@ #define ARM_EXCEPTION_IRQ 5 #define ARM_EXCEPTION_FIQ 6 #define ARM_EXCEPTION_HVC 7 - +#define ARM_EXCEPTION_HYP_GONE HVC_STUB_ERR /* * The rr_lo_hi macro swaps a pair of registers depending on * current endianness. It is used in conjunction with ldrd and strd @@ -72,10 +72,11 @@ extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu); extern void __init_stage2_translation(void); -extern void __kvm_hyp_reset(unsigned long); - extern u64 __vgic_v3_get_ich_vtr_el2(void); +extern u64 __vgic_v3_read_vmcr(void); +extern void __vgic_v3_write_vmcr(u32 vmcr); extern void __vgic_v3_init_lrs(void); + #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 31ee468ce667..f0e66577ce05 100644 --- a/arch/arm/include/asm/kvm_host.h +++ b/arch/arm/include/asm/kvm_host.h @@ -30,7 +30,6 @@ #define __KVM_HAVE_ARCH_INTC_INITIALIZED #define KVM_USER_MEM_SLOTS 32 -#define KVM_COALESCED_MMIO_PAGE_OFFSET 1 #define KVM_HAVE_ONE_REG #define KVM_HALT_POLL_NS_DEFAULT 500000 @@ -45,7 +44,7 @@ #define KVM_MAX_VCPUS VGIC_V2_MAX_CPUS #endif -#define KVM_REQ_VCPU_EXIT 8 +#define KVM_REQ_VCPU_EXIT (8 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) u32 *kvm_vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num, u32 mode); int __attribute_const__ kvm_target_cpu(void); @@ -270,12 +269,6 @@ static inline void __cpu_init_stage2(void) kvm_call_hyp(__init_stage2_translation); } -static inline void __cpu_reset_hyp_mode(unsigned long vector_ptr, - phys_addr_t phys_idmap_start) -{ - kvm_call_hyp((void *)virt_to_idmap(__kvm_hyp_reset), vector_ptr); -} - static inline int kvm_arch_dev_ioctl_check_extension(struct kvm *kvm, long ext) { return 0; diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h index 95f38dcd611d..fa6f2174276b 100644 --- a/arch/arm/include/asm/kvm_mmu.h +++ b/arch/arm/include/asm/kvm_mmu.h @@ -56,7 +56,6 @@ void kvm_mmu_free_memory_caches(struct kvm_vcpu *vcpu); phys_addr_t kvm_mmu_get_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); diff --git a/arch/arm/include/asm/proc-fns.h b/arch/arm/include/asm/proc-fns.h index 8877ad5ffe10..f2e1af45bd6f 100644 --- a/arch/arm/include/asm/proc-fns.h +++ b/arch/arm/include/asm/proc-fns.h @@ -43,7 +43,7 @@ extern struct processor { /* * Special stuff for a reset */ - void (*reset)(unsigned long addr) __attribute__((noreturn)); + void (*reset)(unsigned long addr, bool hvc) __attribute__((noreturn)); /* * Idle the processor */ @@ -88,7 +88,7 @@ extern void cpu_set_pte_ext(pte_t *ptep, pte_t pte); #else extern void cpu_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); #endif -extern void cpu_reset(unsigned long addr) __attribute__((noreturn)); +extern void cpu_reset(unsigned long addr, bool hvc) __attribute__((noreturn)); /* These three are private to arch/arm/kernel/suspend.c */ extern void cpu_do_suspend(void *); diff --git a/arch/arm/include/asm/virt.h b/arch/arm/include/asm/virt.h index 6dae1956c74d..141144f333a2 100644 --- a/arch/arm/include/asm/virt.h +++ b/arch/arm/include/asm/virt.h @@ -53,7 +53,7 @@ static inline void sync_boot_mode(void) } void __hyp_set_vectors(unsigned long phys_vector_base); -unsigned long __hyp_get_vectors(void); +void __hyp_reset_vectors(void); #else #define __boot_cpu_mode (SVC_MODE) #define sync_boot_mode() @@ -94,6 +94,18 @@ extern char __hyp_text_start[]; extern char __hyp_text_end[]; #endif +#else + +/* Only assembly code should need those */ + +#define HVC_SET_VECTORS 0 +#define HVC_SOFT_RESTART 1 +#define HVC_RESET_VECTORS 2 + +#define HVC_STUB_HCALL_NR 3 + #endif /* __ASSEMBLY__ */ +#define HVC_STUB_ERR 0xbadca11 + #endif /* ! VIRT_H */ diff --git a/arch/arm/include/uapi/asm/kvm.h b/arch/arm/include/uapi/asm/kvm.h index 6ebd3e6a1fd1..a88726359e5f 100644 --- a/arch/arm/include/uapi/asm/kvm.h +++ b/arch/arm/include/uapi/asm/kvm.h @@ -27,6 +27,8 @@ #define __KVM_HAVE_IRQ_LINE #define __KVM_HAVE_READONLY_MEM +#define KVM_COALESCED_MMIO_PAGE_OFFSET 1 + #define KVM_REG_SIZE(id) \ (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) @@ -114,6 +116,8 @@ struct kvm_debug_exit_arch { }; struct kvm_sync_regs { + /* Used with KVM_CAP_ARM_USER_IRQ */ + __u64 device_irq_level; }; struct kvm_arch_memory_slot { diff --git a/arch/arm/kernel/hyp-stub.S b/arch/arm/kernel/hyp-stub.S index 15d073ae5da2..ec7e7377d423 100644 --- a/arch/arm/kernel/hyp-stub.S +++ b/arch/arm/kernel/hyp-stub.S @@ -125,7 +125,7 @@ ENTRY(__hyp_stub_install_secondary) * (see safe_svcmode_maskall). */ @ Now install the hypervisor stub: - adr r7, __hyp_stub_vectors + W(adr) r7, __hyp_stub_vectors mcr p15, 4, r7, c12, c0, 0 @ set hypervisor vector base (HVBAR) @ Disable all traps, so we don't get any nasty surprise @@ -202,9 +202,23 @@ ARM_BE8(orr r7, r7, #(1 << 25)) @ HSCTLR.EE ENDPROC(__hyp_stub_install_secondary) __hyp_stub_do_trap: |