[RFC,v1,07/30] KVM: arm64: COCCI: add_ctxt.cocci use_ctxt.cocci: reduce scope of functions to kvm_cpu_ctxt

Message ID	20210924125359.2587041-8-tabba@google.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=n783=OO=lists.infradead.org=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@kernel.org> DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 3E250615A2 Date: Fri, 24 Sep 2021 13:53:36 +0100 In-Reply-To: <20210924125359.2587041-1-tabba@google.com> Message-Id: <20210924125359.2587041-8-tabba@google.com> Mime-Version: 1.0 References: <20210924125359.2587041-1-tabba@google.com> Subject: [RFC PATCH v1 07/30] KVM: arm64: COCCI: add_ctxt.cocci use_ctxt.cocci: reduce scope of functions to kvm_cpu_ctxt From: Fuad Tabba <tabba@google.com> To: kvmarm@lists.cs.columbia.edu Cc: maz@kernel.org, will@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com, suzuki.poulose@arm.com, mark.rutland@arm.com, christoffer.dall@arm.com, drjones@redhat.com, qperret@google.com, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel-team@android.com, tabba@google.com Precedence: list Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org
Series	Reduce scope of vcpu state at hyp by refactoring out state hyp needs \| expand [RFC,v1,00/30] Reduce scope of vcpu state at hyp by refactoring out state hyp needs [RFC,v1,01/30] KVM: arm64: placeholder to check if VM is protected [RFC,v1,02/30,DONOTMERGE] Temporarily disable unused variable warning [RFC,v1,03/30,DONOTMERGE] Coccinelle scripts for refactoring [RFC,v1,04/30] KVM: arm64: remove unused parameters and asm offsets [RFC,v1,05/30] KVM: arm64: add accessors for kvm_cpu_context [RFC,v1,06/30] KVM: arm64: COCCI: use_ctxt_access.cocci: use kvm_cpu_context accessors [RFC,v1,07/30] KVM: arm64: COCCI: add_ctxt.cocci use_ctxt.cocci: reduce scope of functions to kvm_c… [RFC,v1,08/30] KVM: arm64: add hypervisor state accessors [RFC,v1,09/30] KVM: arm64: COCCI: vcpu_hyp_accessors.cocci: use accessors for hypervisor state vcpu… [RFC,v1,10/30] KVM: arm64: Add accessors for hypervisor state in kvm_vcpu_arch [RFC,v1,11/30] KVM: arm64: create and use a new vcpu_hyp_state struct [RFC,v1,12/30] KVM: arm64: COCCI: add_hypstate.cocci use_hypstate.cocci: Reduce scope of functions … [RFC,v1,13/30] KVM: arm64: change function parameters to use kvm_cpu_ctxt and hyp_state [RFC,v1,14/30] KVM: arm64: reduce scope of vgic v2 [RFC,v1,15/30] KVM: arm64: COCCI: vgic3_cpu.cocci: reduce scope of vgic v3 [RFC,v1,16/30] KVM: arm64: reduce scope of vgic_v3 access parameters [RFC,v1,17/30] KVM: arm64: access __hyp_running_vcpu via accessors only [RFC,v1,18/30] KVM: arm64: reduce scope of __guest_exit to only depend on kvm_cpu_context [RFC,v1,19/30] KVM: arm64: change calls of get_loaded_vcpu to get_loaded_vcpu_ctxt [RFC,v1,20/30] KVM: arm64: add __hyp_running_ctxt and __hyp_running_hyps [RFC,v1,21/30] KVM: arm64: transition code to __hyp_running_ctxt and __hyp_running_hyps [RFC,v1,22/30] KVM: arm64: reduce scope of __guest_enter to depend only on kvm_cpu_ctxt [RFC,v1,23/30] KVM: arm64: COCCI: remove_unused.cocci: remove unused ctxt and hypstate variables [RFC,v1,24/30] KVM: arm64: remove unused functions [RFC,v1,25/30] KVM: arm64: separate kvm_run() for protected VMs [RFC,v1,26/30] KVM: arm64: pVM activate_traps to use vcpu_ctxt and vcpu_hyp_state [RFC,v1,27/30] KVM: arm64: remove unsupported pVM features [RFC,v1,28/30] KVM: arm64: reduce scope of pVM fixup_guest_exit to hyp_state and kvm_cpu_ctxt [RFC,v1,29/30,DONOTMERGE] Remove Coccinelle scripts added for refactoring [RFC,v1,30/30,DONOTMERGE] Re-enable warnings

diff --git a/arch/arm64/kvm/hyp/aarch32.c b/arch/arm64/kvm/hyp/aarch32.c index f98cbe2626a1..27ebfff023ff 100644 --- a/arch/arm64/kvm/hyp/aarch32.c +++ b/arch/arm64/kvm/hyp/aarch32.c @@ -46,6 +46,7 @@ static const unsigned short cc_map[16] = { */ bool kvm_condition_valid32(const struct kvm_vcpu *vcpu) { + const struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); unsigned long cpsr; u32 cpsr_cond; int cond; @@ -59,7 +60,7 @@ bool kvm_condition_valid32(const struct kvm_vcpu *vcpu) if (cond == 0xE) return true; - cpsr = *vcpu_cpsr(vcpu); + cpsr = *ctxt_cpsr(vcpu_ctxt); if (cond < 0) { /* This can happen in Thumb mode: examine IT state. */ @@ -93,10 +94,10 @@ bool kvm_condition_valid32(const struct kvm_vcpu *vcpu) * * IT[7:0] -> CPSR[26:25],CPSR[15:10] */ -static void kvm_adjust_itstate(struct kvm_vcpu *vcpu) +static void kvm_adjust_itstate(struct kvm_cpu_context *vcpu_ctxt) { unsigned long itbits, cond; - unsigned long cpsr = *vcpu_cpsr(vcpu); + unsigned long cpsr = *ctxt_cpsr(vcpu_ctxt); bool is_arm = !(cpsr & PSR_AA32_T_BIT); if (is_arm || !(cpsr & PSR_AA32_IT_MASK)) @@ -116,7 +117,7 @@ static void kvm_adjust_itstate(struct kvm_vcpu *vcpu) cpsr |= cond << 13; cpsr |= (itbits & 0x1c) << (10 - 2); cpsr |= (itbits & 0x3) << 25; - *vcpu_cpsr(vcpu) = cpsr; + *ctxt_cpsr(vcpu_ctxt) = cpsr; } /** @@ -125,16 +126,17 @@ static void kvm_adjust_itstate(struct kvm_vcpu *vcpu) */ void kvm_skip_instr32(struct kvm_vcpu *vcpu) { - u32 pc = *vcpu_pc(vcpu); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + u32 pc = *ctxt_pc(vcpu_ctxt); bool is_thumb; - is_thumb = !!(*vcpu_cpsr(vcpu) & PSR_AA32_T_BIT); + is_thumb = !!(*ctxt_cpsr(vcpu_ctxt) & PSR_AA32_T_BIT); if (is_thumb && !kvm_vcpu_trap_il_is32bit(vcpu)) pc += 2; else pc += 4; - *vcpu_pc(vcpu) = pc; + *ctxt_pc(vcpu_ctxt) = pc; - kvm_adjust_itstate(vcpu); + kvm_adjust_itstate(vcpu_ctxt); } diff --git a/arch/arm64/kvm/hyp/exception.c b/arch/arm64/kvm/hyp/exception.c index 643c5844f684..e23b9cedb043 100644 --- a/arch/arm64/kvm/hyp/exception.c +++ b/arch/arm64/kvm/hyp/exception.c @@ -99,13 +99,14 @@ static void __vcpu_write_spsr_und(struct kvm_vcpu *vcpu, u64 val) * Here we manipulate the fields in order of the AArch64 SPSR_ELx layout, from * MSB to LSB. */ -static void enter_exception64(struct kvm_vcpu *vcpu, unsigned long target_mode, +static void enter_exception64(struct kvm_cpu_context *vcpu_ctxt, + unsigned long target_mode, enum exception_type type) { unsigned long sctlr, vbar, old, new, mode; u64 exc_offset; - mode = *vcpu_cpsr(vcpu) & (PSR_MODE_MASK | PSR_MODE32_BIT); + mode = *ctxt_cpsr(vcpu_ctxt) & (PSR_MODE_MASK | PSR_MODE32_BIT); if (mode == target_mode) exc_offset = CURRENT_EL_SP_ELx_VECTOR; @@ -118,18 +119,18 @@ static void enter_exception64(struct kvm_vcpu *vcpu, unsigned long target_mode, switch (target_mode) { case PSR_MODE_EL1h: - vbar = __vcpu_read_sys_reg(vcpu, VBAR_EL1); - sctlr = __vcpu_read_sys_reg(vcpu, SCTLR_EL1); - __vcpu_write_sys_reg(vcpu, *vcpu_pc(vcpu), ELR_EL1); + vbar = __ctxt_read_sys_reg(vcpu_ctxt, VBAR_EL1); + sctlr = __ctxt_read_sys_reg(vcpu_ctxt, SCTLR_EL1); + __ctxt_write_sys_reg(vcpu_ctxt, *ctxt_pc(vcpu_ctxt), ELR_EL1); break; default: /* Don't do that */ BUG(); } - *vcpu_pc(vcpu) = vbar + exc_offset + type; + *ctxt_pc(vcpu_ctxt) = vbar + exc_offset + type; - old = *vcpu_cpsr(vcpu); + old = *ctxt_cpsr(vcpu_ctxt); new = 0; new |= (old & PSR_N_BIT); @@ -172,8 +173,8 @@ static void enter_exception64(struct kvm_vcpu *vcpu, unsigned long target_mode, new |= target_mode; - *vcpu_cpsr(vcpu) = new; - __vcpu_write_spsr(vcpu, old); + *ctxt_cpsr(vcpu_ctxt) = new; + __ctxt_write_spsr(vcpu_ctxt, old); } /* @@ -194,12 +195,13 @@ static void enter_exception64(struct kvm_vcpu *vcpu, unsigned long target_mode, * Here we manipulate the fields in order of the AArch32 SPSR_ELx layout, from * MSB to LSB. */ -static unsigned long get_except32_cpsr(struct kvm_vcpu *vcpu, u32 mode) +static unsigned long get_except32_cpsr(struct kvm_cpu_context *vcpu_ctxt, + u32 mode) { - u32 sctlr = __vcpu_read_sys_reg(vcpu, SCTLR_EL1); + u32 sctlr = __ctxt_read_sys_reg(vcpu_ctxt, SCTLR_EL1); unsigned long old, new; - old = *vcpu_cpsr(vcpu); + old = *ctxt_cpsr(vcpu_ctxt); new = 0; new |= (old & PSR_AA32_N_BIT); @@ -288,27 +290,28 @@ static const u8 return_offsets[8][2] = { [7] = { 4, 4 }, /* FIQ, unused */ }; -static void enter_exception32(struct kvm_vcpu *vcpu, u32 mode, u32 vect_offset) +static void enter_exception32(struct kvm_cpu_context *vcpu_ctxt, u32 mode, + u32 vect_offset) { - unsigned long spsr = *vcpu_cpsr(vcpu); + unsigned long spsr = *ctxt_cpsr(vcpu_ctxt); bool is_thumb = (spsr & PSR_AA32_T_BIT); - u32 sctlr = __vcpu_read_sys_reg(vcpu, SCTLR_EL1); + u32 sctlr = __ctxt_read_sys_reg(vcpu_ctxt, SCTLR_EL1); u32 return_address; - *vcpu_cpsr(vcpu) = get_except32_cpsr(vcpu, mode); - return_address = *vcpu_pc(vcpu); + *ctxt_cpsr(vcpu_ctxt) = get_except32_cpsr(vcpu_ctxt, mode); + return_address = *ctxt_pc(vcpu_ctxt); return_address += return_offsets[vect_offset >> 2][is_thumb]; /* KVM only enters the ABT and UND modes, so only deal with those */ switch(mode) { case PSR_AA32_MODE_ABT: - __vcpu_write_spsr_abt(vcpu, host_spsr_to_spsr32(spsr)); - vcpu_gp_regs(vcpu)->compat_lr_abt = return_address; + __ctxt_write_spsr_abt(vcpu_ctxt, host_spsr_to_spsr32(spsr)); + ctxt_gp_regs(vcpu_ctxt)->compat_lr_abt = return_address; break; case PSR_AA32_MODE_UND: - __vcpu_write_spsr_und(vcpu, host_spsr_to_spsr32(spsr)); - vcpu_gp_regs(vcpu)->compat_lr_und = return_address; + __ctxt_write_spsr_und(vcpu_ctxt, host_spsr_to_spsr32(spsr)); + ctxt_gp_regs(vcpu_ctxt)->compat_lr_und = return_address; break; } @@ -316,23 +319,24 @@ static void enter_exception32(struct kvm_vcpu *vcpu, u32 mode, u32 vect_offset) if (sctlr & (1 << 13)) vect_offset += 0xffff0000; else /* always have security exceptions */ - vect_offset += __vcpu_read_sys_reg(vcpu, VBAR_EL1); + vect_offset += __ctxt_read_sys_reg(vcpu_ctxt, VBAR_EL1); - *vcpu_pc(vcpu) = vect_offset; + *ctxt_pc(vcpu_ctxt) = vect_offset; } static void kvm_inject_exception(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); if (vcpu_el1_is_32bit(vcpu)) { switch (vcpu->arch.flags & KVM_ARM64_EXCEPT_MASK) { case KVM_ARM64_EXCEPT_AA32_UND: - enter_exception32(vcpu, PSR_AA32_MODE_UND, 4); + enter_exception32(vcpu_ctxt, PSR_AA32_MODE_UND, 4); break; case KVM_ARM64_EXCEPT_AA32_IABT: - enter_exception32(vcpu, PSR_AA32_MODE_ABT, 12); + enter_exception32(vcpu_ctxt, PSR_AA32_MODE_ABT, 12); break; case KVM_ARM64_EXCEPT_AA32_DABT: - enter_exception32(vcpu, PSR_AA32_MODE_ABT, 16); + enter_exception32(vcpu_ctxt, PSR_AA32_MODE_ABT, 16); break; default: /* Err... */ @@ -342,7 +346,8 @@ static void kvm_inject_exception(struct kvm_vcpu *vcpu) switch (vcpu->arch.flags & KVM_ARM64_EXCEPT_MASK) { case (KVM_ARM64_EXCEPT_AA64_ELx_SYNC | KVM_ARM64_EXCEPT_AA64_EL1): - enter_exception64(vcpu, PSR_MODE_EL1h, except_type_sync); + enter_exception64(vcpu_ctxt, PSR_MODE_EL1h, + except_type_sync); break; default: /* @@ -361,6 +366,7 @@ static void kvm_inject_exception(struct kvm_vcpu *vcpu) */ void __kvm_adjust_pc(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); if (vcpu->arch.flags & KVM_ARM64_PENDING_EXCEPTION) { kvm_inject_exception(vcpu); vcpu->arch.flags &= ~(KVM_ARM64_PENDING_EXCEPTION | diff --git a/arch/arm64/kvm/hyp/include/hyp/adjust_pc.h b/arch/arm64/kvm/hyp/include/hyp/adjust_pc.h index 4fdfeabefeb4..20dde9dbc11b 100644 --- a/arch/arm64/kvm/hyp/include/hyp/adjust_pc.h +++ b/arch/arm64/kvm/hyp/include/hyp/adjust_pc.h @@ -15,15 +15,16 @@ static inline void kvm_skip_instr(struct kvm_vcpu *vcpu) { - if (vcpu_mode_is_32bit(vcpu)) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + if (ctxt_mode_is_32bit(vcpu_ctxt)) { kvm_skip_instr32(vcpu); } else { - *vcpu_pc(vcpu) += 4; - *vcpu_cpsr(vcpu) &= ~PSR_BTYPE_MASK; + *ctxt_pc(vcpu_ctxt) += 4; + *ctxt_cpsr(vcpu_ctxt) &= ~PSR_BTYPE_MASK; } /* advance the singlestep state machine */ - *vcpu_cpsr(vcpu) &= ~DBG_SPSR_SS; + *ctxt_cpsr(vcpu_ctxt) &= ~DBG_SPSR_SS; } /* @@ -32,13 +33,14 @@ static inline void kvm_skip_instr(struct kvm_vcpu *vcpu) */ static inline void __kvm_skip_instr(struct kvm_vcpu *vcpu) { - *vcpu_pc(vcpu) = read_sysreg_el2(SYS_ELR); - vcpu_gp_regs(vcpu)->pstate = read_sysreg_el2(SYS_SPSR); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + *ctxt_pc(vcpu_ctxt) = read_sysreg_el2(SYS_ELR); + ctxt_gp_regs(vcpu_ctxt)->pstate = read_sysreg_el2(SYS_SPSR); kvm_skip_instr(vcpu); - write_sysreg_el2(vcpu_gp_regs(vcpu)->pstate, SYS_SPSR); - write_sysreg_el2(*vcpu_pc(vcpu), SYS_ELR); + write_sysreg_el2(ctxt_gp_regs(vcpu_ctxt)->pstate, SYS_SPSR); + write_sysreg_el2(*ctxt_pc(vcpu_ctxt), SYS_ELR); } /* diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h index 9fa9cf71eefa..41c553a7b5dd 100644 --- a/arch/arm64/kvm/hyp/include/hyp/switch.h +++ b/arch/arm64/kvm/hyp/include/hyp/switch.h @@ -54,14 +54,16 @@ static inline bool update_fp_enabled(struct kvm_vcpu *vcpu) /* Save the 32-bit only FPSIMD system register state */ static inline void __fpsimd_save_fpexc32(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); if (!vcpu_el1_is_32bit(vcpu)) return; - __vcpu_sys_reg(vcpu, FPEXC32_EL2) = read_sysreg(fpexc32_el2); + ctxt_sys_reg(vcpu_ctxt, FPEXC32_EL2) = read_sysreg(fpexc32_el2); } static inline void __activate_traps_fpsimd32(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); /* * We are about to set CPTR_EL2.TFP to trap all floating point * register accesses to EL2, however, the ARM ARM clearly states that @@ -215,15 +217,17 @@ static inline void __hyp_sve_save_host(struct kvm_vcpu *vcpu) static inline void __hyp_sve_restore_guest(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); sve_cond_update_zcr_vq(vcpu_sve_max_vq(vcpu) - 1, SYS_ZCR_EL2); __sve_restore_state(vcpu_sve_pffr(vcpu), - &vcpu_fp_regs(vcpu)->fpsr); - write_sysreg_el1(__vcpu_sys_reg(vcpu, ZCR_EL1), SYS_ZCR); + &ctxt_fp_regs(vcpu_ctxt)->fpsr); + write_sysreg_el1(ctxt_sys_reg(vcpu_ctxt, ZCR_EL1), SYS_ZCR); } /* Check for an FPSIMD/SVE trap and handle as appropriate */ static inline bool __hyp_handle_fpsimd(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); bool sve_guest, sve_host; u8 esr_ec; u64 reg; @@ -276,11 +280,12 @@ static inline bool __hyp_handle_fpsimd(struct kvm_vcpu *vcpu) if (sve_guest) __hyp_sve_restore_guest(vcpu); else - __fpsimd_restore_state(vcpu_fp_regs(vcpu)); + __fpsimd_restore_state(ctxt_fp_regs(vcpu_ctxt)); /* Skip restoring fpexc32 for AArch64 guests */ if (!(read_sysreg(hcr_el2) & HCR_RW)) - write_sysreg(__vcpu_sys_reg(vcpu, FPEXC32_EL2), fpexc32_el2); + write_sysreg(ctxt_sys_reg(vcpu_ctxt, FPEXC32_EL2), + fpexc32_el2); vcpu->arch.flags |= KVM_ARM64_FP_ENABLED; @@ -289,9 +294,10 @@ static inline bool __hyp_handle_fpsimd(struct kvm_vcpu *vcpu) static inline bool handle_tx2_tvm(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); u32 sysreg = esr_sys64_to_sysreg(kvm_vcpu_get_esr(vcpu)); int rt = kvm_vcpu_sys_get_rt(vcpu); - u64 val = vcpu_get_reg(vcpu, rt); + u64 val = ctxt_get_reg(vcpu_ctxt, rt); /* * The normal sysreg handling code expects to see the traps, @@ -382,6 +388,7 @@ DECLARE_PER_CPU(struct kvm_cpu_context, kvm_hyp_ctxt); static inline bool __hyp_handle_ptrauth(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); struct kvm_cpu_context *ctxt; u64 val; @@ -412,6 +419,7 @@ static inline bool __hyp_handle_ptrauth(struct kvm_vcpu *vcpu) */ static inline bool fixup_guest_exit(struct kvm_vcpu *vcpu, u64 *exit_code) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); if (ARM_EXCEPTION_CODE(*exit_code) != ARM_EXCEPTION_IRQ) vcpu->arch.fault.esr_el2 = read_sysreg_el2(SYS_ESR); diff --git a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h index 9451206f512e..c2668b85b67e 100644 --- a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h +++ b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h @@ -158,36 +158,39 @@ static inline void __sysreg_restore_el2_return_state(struct kvm_cpu_context *ctx static inline void __sysreg32_save_state(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); if (!vcpu_el1_is_32bit(vcpu)) return; - *vcpu_spsr_abt(vcpu) = read_sysreg(spsr_abt); - *vcpu_spsr_und(vcpu) = read_sysreg(spsr_und); - *vcpu_spsr_irq(vcpu) = read_sysreg(spsr_irq); - *vcpu_spsr_fiq(vcpu) = read_sysreg(spsr_fiq); + *ctxt_spsr_abt(vcpu_ctxt) = read_sysreg(spsr_abt); + *ctxt_spsr_und(vcpu_ctxt) = read_sysreg(spsr_und); + *ctxt_spsr_irq(vcpu_ctxt) = read_sysreg(spsr_irq); + *ctxt_spsr_fiq(vcpu_ctxt) = read_sysreg(spsr_fiq); - __vcpu_sys_reg(vcpu, DACR32_EL2) = read_sysreg(dacr32_el2); - __vcpu_sys_reg(vcpu, IFSR32_EL2) = read_sysreg(ifsr32_el2); + ctxt_sys_reg(vcpu_ctxt, DACR32_EL2) = read_sysreg(dacr32_el2); + ctxt_sys_reg(vcpu_ctxt, IFSR32_EL2) = read_sysreg(ifsr32_el2); if (has_vhe() || vcpu->arch.flags & KVM_ARM64_DEBUG_DIRTY) - __vcpu_sys_reg(vcpu, DBGVCR32_EL2) = read_sysreg(dbgvcr32_el2); + ctxt_sys_reg(vcpu_ctxt, DBGVCR32_EL2) = read_sysreg(dbgvcr32_el2); } static inline void __sysreg32_restore_state(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); if (!vcpu_el1_is_32bit(vcpu)) return; - write_sysreg(*vcpu_spsr_abt(vcpu), spsr_abt); - write_sysreg(*vcpu_spsr_und(vcpu), spsr_und); - write_sysreg(*vcpu_spsr_irq(vcpu), spsr_irq); - write_sysreg(*vcpu_spsr_fiq(vcpu), spsr_fiq); + write_sysreg(*ctxt_spsr_abt(vcpu_ctxt), spsr_abt); + write_sysreg(*ctxt_spsr_und(vcpu_ctxt), spsr_und); + write_sysreg(*ctxt_spsr_irq(vcpu_ctxt), spsr_irq); + write_sysreg(*ctxt_spsr_fiq(vcpu_ctxt), spsr_fiq); - write_sysreg(__vcpu_sys_reg(vcpu, DACR32_EL2), dacr32_el2); - write_sysreg(__vcpu_sys_reg(vcpu, IFSR32_EL2), ifsr32_el2); + write_sysreg(ctxt_sys_reg(vcpu_ctxt, DACR32_EL2), dacr32_el2); + write_sysreg(ctxt_sys_reg(vcpu_ctxt, IFSR32_EL2), ifsr32_el2); if (has_vhe() || vcpu->arch.flags & KVM_ARM64_DEBUG_DIRTY) - write_sysreg(__vcpu_sys_reg(vcpu, DBGVCR32_EL2), dbgvcr32_el2); + write_sysreg(ctxt_sys_reg(vcpu_ctxt, DBGVCR32_EL2), + dbgvcr32_el2); } #endif /* __ARM64_KVM_HYP_SYSREG_SR_H__ */ diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c index 9296d7108f93..d5780acab6c2 100644 --- a/arch/arm64/kvm/hyp/nvhe/switch.c +++ b/arch/arm64/kvm/hyp/nvhe/switch.c @@ -36,6 +36,7 @@ DEFINE_PER_CPU(unsigned long, kvm_hyp_vector); static void __activate_traps(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); u64 val; ___activate_traps(vcpu); @@ -68,6 +69,7 @@ static void __activate_traps(struct kvm_vcpu *vcpu) static void __deactivate_traps(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); extern char __kvm_hyp_host_vector[]; u64 mdcr_el2, cptr; @@ -168,6 +170,7 @@ static void __pmu_switch_to_host(struct kvm_cpu_context *host_ctxt) /* Switch to the guest for legacy non-VHE systems */ int __kvm_vcpu_run(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); struct kvm_cpu_context *host_ctxt; struct kvm_cpu_context *guest_ctxt; bool pmu_switch_needed; @@ -267,9 +270,11 @@ void __noreturn hyp_panic(void) u64 par = read_sysreg_par(); struct kvm_cpu_context *host_ctxt; struct kvm_vcpu *vcpu; + struct kvm_cpu_context *vcpu_ctxt; host_ctxt = &this_cpu_ptr(&kvm_host_data)->host_ctxt; vcpu = host_ctxt->__hyp_running_vcpu; + vcpu_ctxt = &vcpu_ctxt(vcpu); if (vcpu) { __timer_disable_traps(); diff --git a/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c b/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c index 87a54375bd6e..8dbc39026cc5 100644 --- a/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c +++ b/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c @@ -15,9 +15,9 @@ #include <asm/kvm_hyp.h> #include <asm/kvm_mmu.h> -static bool __is_be(struct kvm_vcpu *vcpu) +static bool __is_be(struct kvm_cpu_context *vcpu_ctxt) { - if (vcpu_mode_is_32bit(vcpu)) + if (ctxt_mode_is_32bit(vcpu_ctxt)) return !!(read_sysreg_el2(SYS_SPSR) & PSR_AA32_E_BIT); return !!(read_sysreg(SCTLR_EL1) & SCTLR_ELx_EE); @@ -36,6 +36,7 @@ static bool __is_be(struct kvm_vcpu *vcpu) */ int __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); struct kvm *kvm = kern_hyp_va(vcpu->kvm); struct vgic_dist *vgic = &kvm->arch.vgic; phys_addr_t fault_ipa; @@ -68,19 +69,19 @@ int __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu) addr += fault_ipa - vgic->vgic_cpu_base; if (kvm_vcpu_dabt_iswrite(vcpu)) { - u32 data = vcpu_get_reg(vcpu, rd); - if (__is_be(vcpu)) { + u32 data = ctxt_get_reg(vcpu_ctxt, rd); + if (__is_be(vcpu_ctxt)) { /* guest pre-swabbed data, undo this for writel() */ data = __kvm_swab32(data); } writel_relaxed(data, addr); } else { u32 data = readl_relaxed(addr); - if (__is_be(vcpu)) { + if (__is_be(vcpu_ctxt)) { /* guest expects swabbed data */ data = __kvm_swab32(data); } - vcpu_set_reg(vcpu, rd, data); + ctxt_set_reg(vcpu_ctxt, rd, data); } __kvm_skip_instr(vcpu); diff --git a/arch/arm64/kvm/hyp/vgic-v3-sr.c b/arch/arm64/kvm/hyp/vgic-v3-sr.c index 39f8f7f9227c..bdb03b8e50ab 100644 --- a/arch/arm64/kvm/hyp/vgic-v3-sr.c +++ b/arch/arm64/kvm/hyp/vgic-v3-sr.c @@ -473,6 +473,7 @@ static int __vgic_v3_bpr_min(void) static int __vgic_v3_get_group(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); u32 esr = kvm_vcpu_get_esr(vcpu); u8 crm = (esr & ESR_ELx_SYS64_ISS_CRM_MASK) >> ESR_ELx_SYS64_ISS_CRM_SHIFT; @@ -673,6 +674,7 @@ static int __vgic_v3_clear_highest_active_priority(void) static void __vgic_v3_read_iar(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); u64 lr_val; u8 lr_prio, pmr; int lr, grp; @@ -700,11 +702,11 @@ static void __vgic_v3_read_iar(struct kvm_vcpu *vcpu, u32 vmcr, int rt) lr_val |= ICH_LR_ACTIVE_BIT; __gic_v3_set_lr(lr_val, lr); __vgic_v3_set_active_priority(lr_prio, vmcr, grp); - vcpu_set_reg(vcpu, rt, lr_val & ICH_LR_VIRTUAL_ID_MASK); + ctxt_set_reg(vcpu_ctxt, rt, lr_val & ICH_LR_VIRTUAL_ID_MASK); return; spurious: - vcpu_set_reg(vcpu, rt, ICC_IAR1_EL1_SPURIOUS); + ctxt_set_reg(vcpu_ctxt, rt, ICC_IAR1_EL1_SPURIOUS); } static void __vgic_v3_clear_active_lr(int lr, u64 lr_val) @@ -731,7 +733,8 @@ static void __vgic_v3_bump_eoicount(void) static void __vgic_v3_write_dir(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { - u32 vid = vcpu_get_reg(vcpu, rt); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + u32 vid = ctxt_get_reg(vcpu_ctxt, rt); u64 lr_val; int lr; @@ -754,7 +757,8 @@ static void __vgic_v3_write_dir(struct kvm_vcpu *vcpu, u32 vmcr, int rt) static void __vgic_v3_write_eoir(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { - u32 vid = vcpu_get_reg(vcpu, rt); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + u32 vid = ctxt_get_reg(vcpu_ctxt, rt); u64 lr_val; u8 lr_prio, act_prio; int lr, grp; @@ -791,17 +795,20 @@ static void __vgic_v3_write_eoir(struct kvm_vcpu *vcpu, u32 vmcr, int rt) static void __vgic_v3_read_igrpen0(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { - vcpu_set_reg(vcpu, rt, !!(vmcr & ICH_VMCR_ENG0_MASK)); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + ctxt_set_reg(vcpu_ctxt, rt, !!(vmcr & ICH_VMCR_ENG0_MASK)); } static void __vgic_v3_read_igrpen1(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { - vcpu_set_reg(vcpu, rt, !!(vmcr & ICH_VMCR_ENG1_MASK)); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + ctxt_set_reg(vcpu_ctxt, rt, !!(vmcr & ICH_VMCR_ENG1_MASK)); } static void __vgic_v3_write_igrpen0(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { - u64 val = vcpu_get_reg(vcpu, rt); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + u64 val = ctxt_get_reg(vcpu_ctxt, rt); if (val & 1) vmcr |= ICH_VMCR_ENG0_MASK; @@ -813,7 +820,8 @@ static void __vgic_v3_write_igrpen0(struct kvm_vcpu *vcpu, u32 vmcr, int rt) static void __vgic_v3_write_igrpen1(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { - u64 val = vcpu_get_reg(vcpu, rt); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + u64 val = ctxt_get_reg(vcpu_ctxt, rt); if (val & 1) vmcr |= ICH_VMCR_ENG1_MASK; @@ -825,17 +833,20 @@ static void __vgic_v3_write_igrpen1(struct kvm_vcpu *vcpu, u32 vmcr, int rt) static void __vgic_v3_read_bpr0(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { - vcpu_set_reg(vcpu, rt, __vgic_v3_get_bpr0(vmcr)); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + ctxt_set_reg(vcpu_ctxt, rt, __vgic_v3_get_bpr0(vmcr)); } static void __vgic_v3_read_bpr1(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { - vcpu_set_reg(vcpu, rt, __vgic_v3_get_bpr1(vmcr)); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + ctxt_set_reg(vcpu_ctxt, rt, __vgic_v3_get_bpr1(vmcr)); } static void __vgic_v3_write_bpr0(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { - u64 val = vcpu_get_reg(vcpu, rt); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + u64 val = ctxt_get_reg(vcpu_ctxt, rt); u8 bpr_min = __vgic_v3_bpr_min() - 1; /* Enforce BPR limiting */ @@ -852,7 +863,8 @@ static void __vgic_v3_write_bpr0(struct kvm_vcpu *vcpu, u32 vmcr, int rt) static void __vgic_v3_write_bpr1(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { - u64 val = vcpu_get_reg(vcpu, rt); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + u64 val = ctxt_get_reg(vcpu_ctxt, rt); u8 bpr_min = __vgic_v3_bpr_min(); if (vmcr & ICH_VMCR_CBPR_MASK) @@ -872,6 +884,7 @@ static void __vgic_v3_write_bpr1(struct kvm_vcpu *vcpu, u32 vmcr, int rt) static void __vgic_v3_read_apxrn(struct kvm_vcpu *vcpu, int rt, int n) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); u32 val; if (!__vgic_v3_get_group(vcpu)) @@ -879,12 +892,13 @@ static void __vgic_v3_read_apxrn(struct kvm_vcpu *vcpu, int rt, int n) else val = __vgic_v3_read_ap1rn(n); - vcpu_set_reg(vcpu, rt, val); + ctxt_set_reg(vcpu_ctxt, rt, val); } static void __vgic_v3_write_apxrn(struct kvm_vcpu *vcpu, int rt, int n) { - u32 val = vcpu_get_reg(vcpu, rt); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + u32 val = ctxt_get_reg(vcpu_ctxt, rt); if (!__vgic_v3_get_group(vcpu)) __vgic_v3_write_ap0rn(val, n); @@ -895,47 +909,56 @@ static void __vgic_v3_write_apxrn(struct kvm_vcpu *vcpu, int rt, int n) static void __vgic_v3_read_apxr0(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); __vgic_v3_read_apxrn(vcpu, rt, 0); } static void __vgic_v3_read_apxr1(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); __vgic_v3_read_apxrn(vcpu, rt, 1); } static void __vgic_v3_read_apxr2(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); __vgic_v3_read_apxrn(vcpu, rt, 2); } static void __vgic_v3_read_apxr3(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); __vgic_v3_read_apxrn(vcpu, rt, 3); } static void __vgic_v3_write_apxr0(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); __vgic_v3_write_apxrn(vcpu, rt, 0); } static void __vgic_v3_write_apxr1(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); __vgic_v3_write_apxrn(vcpu, rt, 1); } static void __vgic_v3_write_apxr2(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); __vgic_v3_write_apxrn(vcpu, rt, 2); } static void __vgic_v3_write_apxr3(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); __vgic_v3_write_apxrn(vcpu, rt, 3); } static void __vgic_v3_read_hppir(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); u64 lr_val; int lr, lr_grp, grp; @@ -950,19 +973,21 @@ static void __vgic_v3_read_hppir(struct kvm_vcpu *vcpu, u32 vmcr, int rt) lr_val = ICC_IAR1_EL1_SPURIOUS; spurious: - vcpu_set_reg(vcpu, rt, lr_val & ICH_LR_VIRTUAL_ID_MASK); + ctxt_set_reg(vcpu_ctxt, rt, lr_val & ICH_LR_VIRTUAL_ID_MASK); } static void __vgic_v3_read_pmr(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); vmcr &= ICH_VMCR_PMR_MASK; vmcr >>= ICH_VMCR_PMR_SHIFT; - vcpu_set_reg(vcpu, rt, vmcr); + ctxt_set_reg(vcpu_ctxt, rt, vmcr); } static void __vgic_v3_write_pmr(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { - u32 val = vcpu_get_reg(vcpu, rt); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + u32 val = ctxt_get_reg(vcpu_ctxt, rt); val <<= ICH_VMCR_PMR_SHIFT; val &= ICH_VMCR_PMR_MASK; @@ -974,12 +999,14 @@ static void __vgic_v3_write_pmr(struct kvm_vcpu *vcpu, u32 vmcr, int rt) static void __vgic_v3_read_rpr(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); u32 val = __vgic_v3_get_highest_active_priority(); - vcpu_set_reg(vcpu, rt, val); + ctxt_set_reg(vcpu_ctxt, rt, val); } static void __vgic_v3_read_ctlr(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); u32 vtr, val; vtr = read_gicreg(ICH_VTR_EL2); @@ -996,12 +1023,13 @@ static void __vgic_v3_read_ctlr(struct kvm_vcpu *vcpu, u32 vmcr, int rt) /* CBPR */ val |= (vmcr & ICH_VMCR_CBPR_MASK) >> ICH_VMCR_CBPR_SHIFT; - vcpu_set_reg(vcpu, rt, val); + ctxt_set_reg(vcpu_ctxt, rt, val); } static void __vgic_v3_write_ctlr(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { - u32 val = vcpu_get_reg(vcpu, rt); + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); + u32 val = ctxt_get_reg(vcpu_ctxt, rt); if (val & ICC_CTLR_EL1_CBPR_MASK) vmcr |= ICH_VMCR_CBPR_MASK; @@ -1018,6 +1046,7 @@ static void __vgic_v3_write_ctlr(struct kvm_vcpu *vcpu, u32 vmcr, int rt) int __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); int rt; u32 esr; u32 vmcr; @@ -1026,7 +1055,7 @@ int __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu) u32 sysreg; esr = kvm_vcpu_get_esr(vcpu); - if (vcpu_mode_is_32bit(vcpu)) { + if (ctxt_mode_is_32bit(vcpu_ctxt)) { if (!kvm_condition_valid(vcpu)) { __kvm_skip_instr(vcpu); return 1; diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c index b3229924d243..c2e443202f8e 100644 --- a/arch/arm64/kvm/hyp/vhe/switch.c +++ b/arch/arm64/kvm/hyp/vhe/switch.c @@ -33,6 +33,7 @@ DEFINE_PER_CPU(unsigned long, kvm_hyp_vector); static void __activate_traps(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); u64 val; ___activate_traps(vcpu); @@ -68,6 +69,7 @@ NOKPROBE_SYMBOL(__activate_traps); static void __deactivate_traps(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); extern char vectors[]; /* kernel exception vectors */ ___deactivate_traps(vcpu); @@ -88,6 +90,7 @@ NOKPROBE_SYMBOL(__deactivate_traps); void activate_traps_vhe_load(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); __activate_traps_common(vcpu); } @@ -107,6 +110,7 @@ void deactivate_traps_vhe_put(void) /* Switch to the guest for VHE systems running in EL2 */ static int __kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); struct kvm_cpu_context *host_ctxt; struct kvm_cpu_context *guest_ctxt; u64 exit_code; @@ -160,6 +164,7 @@ NOKPROBE_SYMBOL(__kvm_vcpu_run_vhe); int __kvm_vcpu_run(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); int ret; local_daif_mask(); @@ -197,9 +202,11 @@ static void __hyp_call_panic(u64 spsr, u64 elr, u64 par) { struct kvm_cpu_context *host_ctxt; struct kvm_vcpu *vcpu; + struct kvm_cpu_context *vcpu_ctxt; host_ctxt = &this_cpu_ptr(&kvm_host_data)->host_ctxt; vcpu = host_ctxt->__hyp_running_vcpu; + vcpu_ctxt = &vcpu_ctxt(vcpu); __deactivate_traps(vcpu); sysreg_restore_host_state_vhe(host_ctxt); diff --git a/arch/arm64/kvm/hyp/vhe/sysreg-sr.c b/arch/arm64/kvm/hyp/vhe/sysreg-sr.c index 2a0b8c88d74f..37f56b4743d0 100644 --- a/arch/arm64/kvm/hyp/vhe/sysreg-sr.c +++ b/arch/arm64/kvm/hyp/vhe/sysreg-sr.c @@ -63,6 +63,7 @@ NOKPROBE_SYMBOL(sysreg_restore_guest_state_vhe); */ void kvm_vcpu_load_sysregs_vhe(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); struct kvm_cpu_context *guest_ctxt = &vcpu->arch.ctxt; struct kvm_cpu_context *host_ctxt; @@ -97,6 +98,7 @@ void kvm_vcpu_load_sysregs_vhe(struct kvm_vcpu *vcpu) */ void kvm_vcpu_put_sysregs_vhe(struct kvm_vcpu *vcpu) { + struct kvm_cpu_context *vcpu_ctxt = &vcpu_ctxt(vcpu); struct kvm_cpu_context *guest_ctxt = &vcpu->arch.ctxt; struct kvm_cpu_context *host_ctxt;

[RFC,v1,07/30] KVM: arm64: COCCI: add_ctxt.cocci use_ctxt.cocci: reduce scope of functions to kvm_cpu_ctxt

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