diff options
Diffstat (limited to 'arch/arm64/include/asm/kvm_asm.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_asm.h | 54 |
1 files changed, 47 insertions, 7 deletions
diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h index 24961b732e65..aea01a09eb94 100644 --- a/arch/arm64/include/asm/kvm_asm.h +++ b/arch/arm64/include/asm/kvm_asm.h @@ -20,6 +20,9 @@ #include <asm/virt.h> +#define VCPU_WORKAROUND_2_FLAG_SHIFT 0 +#define VCPU_WORKAROUND_2_FLAG (_AC(1, UL) << VCPU_WORKAROUND_2_FLAG_SHIFT) + #define ARM_EXIT_WITH_SERROR_BIT 31 #define ARM_EXCEPTION_CODE(x) ((x) & ~(1U << ARM_EXIT_WITH_SERROR_BIT)) #define ARM_SERROR_PENDING(x) !!((x) & (1U << ARM_EXIT_WITH_SERROR_BIT)) @@ -27,21 +30,23 @@ #define ARM_EXCEPTION_IRQ 0 #define ARM_EXCEPTION_EL1_SERROR 1 #define ARM_EXCEPTION_TRAP 2 +#define ARM_EXCEPTION_IL 3 /* The hyp-stub will return this for any kvm_call_hyp() call */ #define ARM_EXCEPTION_HYP_GONE HVC_STUB_ERR -#define KVM_ARM64_DEBUG_DIRTY_SHIFT 0 -#define KVM_ARM64_DEBUG_DIRTY (1 << KVM_ARM64_DEBUG_DIRTY_SHIFT) +#ifndef __ASSEMBLY__ + +#include <linux/mm.h> +/* Translate a kernel address of @sym into its equivalent linear mapping */ #define kvm_ksym_ref(sym) \ ({ \ void *val = &sym; \ if (!is_kernel_in_hyp_mode()) \ - val = phys_to_virt((u64)&sym - kimage_voffset); \ + val = lm_alias(&sym); \ val; \ }) -#ifndef __ASSEMBLY__ struct kvm; struct kvm_vcpu; @@ -57,7 +62,9 @@ extern void __kvm_tlb_flush_local_vmid(struct kvm_vcpu *vcpu); extern void __kvm_timer_set_cntvoff(u32 cntvoff_low, u32 cntvoff_high); -extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu); +extern int kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu); + +extern int __kvm_vcpu_run_nvhe(struct kvm_vcpu *vcpu); extern u64 __vgic_v3_get_ich_vtr_el2(void); extern u64 __vgic_v3_read_vmcr(void); @@ -66,9 +73,42 @@ extern void __vgic_v3_init_lrs(void); extern u32 __kvm_get_mdcr_el2(void); -extern u32 __init_stage2_translation(void); +/* Home-grown __this_cpu_{ptr,read} variants that always work at HYP */ +#define __hyp_this_cpu_ptr(sym) \ + ({ \ + void *__ptr = hyp_symbol_addr(sym); \ + __ptr += read_sysreg(tpidr_el2); \ + (typeof(&sym))__ptr; \ + }) + +#define __hyp_this_cpu_read(sym) \ + ({ \ + *__hyp_this_cpu_ptr(sym); \ + }) -extern void __qcom_hyp_sanitize_btac_predictors(void); +#else /* __ASSEMBLY__ */ + +.macro hyp_adr_this_cpu reg, sym, tmp + adr_l \reg, \sym + mrs \tmp, tpidr_el2 + add \reg, \reg, \tmp +.endm + +.macro hyp_ldr_this_cpu reg, sym, tmp + adr_l \reg, \sym + mrs \tmp, tpidr_el2 + ldr \reg, [\reg, \tmp] +.endm + +.macro get_host_ctxt reg, tmp + hyp_adr_this_cpu \reg, kvm_host_cpu_state, \tmp +.endm + +.macro get_vcpu_ptr vcpu, ctxt + get_host_ctxt \ctxt, \vcpu + ldr \vcpu, [\ctxt, #HOST_CONTEXT_VCPU] + kern_hyp_va \vcpu +.endm #endif |
