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Fri, 18 Sep 2026 13:31:13 +0000 (GMT) Received: from tuxmaker.lnxne.boe (unknown [9.87.85.9]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 18 Sep 2026 13:31:13 +0000 (GMT) From: Steffen Eiden To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org Cc: Alexander Gordeev , Andreas Grapentin , Arnd Bergmann , Catalin Marinas , Christian Borntraeger , Claudio Imbrenda , David Hildenbrand , Friedrich Welter , Fuad Tabba , Gautam Gala , Hariharan Mari , Heiko Carstens , Hendrik Brueckner , Ilya Leoshkevich , Janosch Frank , Joey Gouly , Marc Zyngier , Nico Boehr , Nina Schoetterl-Glausch , Oliver Upton , Paolo Bonzini , Suzuki K Poulose , Sven Schnelle , Ulrich Weigand , Vasily Gorbik , Will Deacon , Zenghui Yu Subject: [PATCH v8 15/29] arm64: Prepare sharing arm64 headers with s390 Date: Fri, 18 Sep 2026 15:30:52 +0200 Message-ID: <20260918133107.1042730-16-seiden@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260918133107.1042730-1-seiden@linux.ibm.com> References: <20260918133107.1042730-1-seiden@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTE4MDE4NCBTYWx0ZWRfX6xQQ+Iq8q/BW 9jawpEut8GzAYhM+YaDcmE3A3i9+Zlidtnl4XUuH+pQuE0ZhY7zJ4DA47GGJ8b6m9SMx+Fkaf3+ 6+/IHZuL+RaEOfwL5i3ccB92V03owc0= X-Proofpoint-ORIG-GUID: vnzME8dN8chmiJtNzEajdacSnFZnEw7T X-Proofpoint-GUID: 0DGdP1w6oakJ2jbw5RTH_vaNrWexvxC2 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTE4MDE4NCBTYWx0ZWRfX5ka60DZuOBQp 8ATF56QAOBSx8G8xFTvm4Kn+BcxAAX0cphwIodF9NvOEVQI7Q7S90+Nh5VMwkgMJNKoXHqMrEom x8KaBou4j7dslVjW/zkYxaNwolXxTpqAgaezH6Hp/drrA0idii5024JqRGZJz6jWRSO2kJBxPdB wGUZWG7gU7Tz4vJZVMtWwQdjff/SMlT6powk0Z9S8MSmYUxM31Ujq+i8sVL4UnW22i3Ivj0M15y XSIAG72eGWpFCx/g9SUSz2D5UImsMwYrlm+bJZBXRlBfUYfJS4lx6xiVZnPVPVyqH7N17/qwFii Ysi54Kzfjo7qrxpA/pknSR8kYmY2HNDQd+hS4TUPhqo3cG2lG9noP+BrWpJGUbvTx3Xb9+ag6lp x7W1hkhku+SR+mzeJS+fHkKMjNh9XXU6ovG1iMw22rrEg6Q8v1FTOP6CLPf81yxjPUDEBw8ETPs JaKh0qPF7dJfGNfH5IQ== X-Authority-Analysis: v=2.4 cv=F+7C5ahN c=1 sm=1 tr=0 ts=6aad3d29 cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=VdqzKS8jKosA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=VnNF1IyMAAAA:8 a=eg9QoaqSYRrbe55da3AA:9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-18_03,2026-09-16_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 phishscore=0 clxscore=1015 malwarescore=0 lowpriorityscore=0 bulkscore=0 spamscore=0 impostorscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609180184 Prepare the sharing of arm64 headers with s390 by moving definitions inside headers to reduce the number of shared markers. Clean up includes to further streamline the sharing of headers. No functional change. Signed-off-by: Steffen Eiden --- arch/arm64/include/asm/esr.h | 4 +- arch/arm64/include/asm/kvm_arm.h | 5 +- arch/arm64/include/asm/kvm_emulate.h | 5 +- arch/arm64/include/asm/kvm_host.h | 102 ++++++++++++++------------- arch/arm64/include/asm/sysreg.h | 2 +- 5 files changed, 62 insertions(+), 56 deletions(-) diff --git a/arch/arm64/include/asm/esr.h b/arch/arm64/include/asm/esr.h index f816f5d77f1a..da085c83b57e 100644 --- a/arch/arm64/include/asm/esr.h +++ b/arch/arm64/include/asm/esr.h @@ -7,7 +7,7 @@ #ifndef __ASM_ESR_H #define __ASM_ESR_H -#include +#include #include #define ESR_ELx_EC_UNKNOWN UL(0x00) @@ -435,7 +435,7 @@ #define ESR_ELx_IT_GCSPOPX 7 #ifndef __ASSEMBLER__ -#include +#include static inline unsigned long esr_brk_comment(unsigned long esr) { diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h index 4bfbd827c5aa..57edd8437200 100644 --- a/arch/arm64/include/asm/kvm_arm.h +++ b/arch/arm64/include/asm/kvm_arm.h @@ -7,10 +7,11 @@ #ifndef __ARM64_KVM_ARM_H__ #define __ARM64_KVM_ARM_H__ +#include +#include +#include #include -#include #include -#include /* * Because I'm terribly lazy and that repainting the whole of the KVM diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index b31d50bdf59e..a34a9417ff4d 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -44,11 +44,12 @@ enum exception_type { bool kvm_condition_valid32(const struct kvm_vcpu *vcpu); void kvm_skip_instr32(struct kvm_vcpu *vcpu); +int kvm_inject_dabt_excl_atomic(struct kvm_vcpu *vcpu, u64 addr); +int kvm_inject_serror_esr(struct kvm_vcpu *vcpu, u64 esr); + void kvm_inject_undefined(struct kvm_vcpu *vcpu); void kvm_inject_sync(struct kvm_vcpu *vcpu, u64 esr); -int kvm_inject_serror_esr(struct kvm_vcpu *vcpu, u64 esr); int kvm_inject_sea(struct kvm_vcpu *vcpu, bool iabt, u64 addr); -int kvm_inject_dabt_excl_atomic(struct kvm_vcpu *vcpu, u64 addr); void kvm_inject_size_fault(struct kvm_vcpu *vcpu); static inline int kvm_inject_sea_dabt(struct kvm_vcpu *vcpu, u64 addr) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index fc0037efa0b4..1e48af601f9d 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -59,6 +59,46 @@ #define KVM_REQ_MAP_L1_VNCR_EL2 KVM_ARCH_REQ(10) #define KVM_REQ_VGIC_PROCESS_UPDATE KVM_ARCH_REQ(11) +/* Bit indices for kvm_arch::flags */ +enum { + /* + * If we encounter a data abort without valid instruction syndrome + * information, report this to user space. User space can (and + * should) opt in to this feature if KVM_CAP_ARM_NISV_TO_USER is + * supported. + */ + KVM_ARCH_FLAG_RETURN_NISV_IO_ABORT_TO_USER, + /* Memory Tagging Extension enabled for the guest */ + KVM_ARCH_FLAG_MTE_ENABLED, + /* At least one vCPU has ran in the VM */ + KVM_ARCH_FLAG_HAS_RAN_ONCE, + /* The vCPU feature set for the VM is configured */ + KVM_ARCH_FLAG_VCPU_FEATURES_CONFIGURED, + /* PSCI SYSTEM_SUSPEND enabled for the guest */ + KVM_ARCH_FLAG_SYSTEM_SUSPEND_ENABLED, + /* VM counter offset */ + KVM_ARCH_FLAG_VM_COUNTER_OFFSET, + /* Timer PPIs made immutable */ + KVM_ARCH_FLAG_TIMER_PPIS_IMMUTABLE, + /* Initial ID reg values loaded */ + KVM_ARCH_FLAG_ID_REGS_INITIALIZED, + /* Fine-Grained UNDEF initialised */ + KVM_ARCH_FLAG_FGU_INITIALIZED, + /* SVE exposed to guest */ + KVM_ARCH_FLAG_GUEST_HAS_SVE, + /* MIDR_EL1, REVIDR_EL1, and AIDR_EL1 are writable from userspace */ + KVM_ARCH_FLAG_WRITABLE_IMP_ID_REGS, + /* Unhandled SEAs are taken to userspace */ + KVM_ARCH_FLAG_EXIT_SEA, +}; + +struct vcpu_reset_state { + unsigned long pc; + unsigned long r0; + bool be; + bool reset; +}; + #define KVM_DIRTY_LOG_MANUAL_CAPS (KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE | \ KVM_DIRTY_LOG_INITIALLY_SET) @@ -341,35 +381,6 @@ struct kvm_arch { /* Protects VM-scoped configuration data */ struct mutex config_lock; - /* - * If we encounter a data abort without valid instruction syndrome - * information, report this to user space. User space can (and - * should) opt in to this feature if KVM_CAP_ARM_NISV_TO_USER is - * supported. - */ -#define KVM_ARCH_FLAG_RETURN_NISV_IO_ABORT_TO_USER 0 - /* Memory Tagging Extension enabled for the guest */ -#define KVM_ARCH_FLAG_MTE_ENABLED 1 - /* At least one vCPU has ran in the VM */ -#define KVM_ARCH_FLAG_HAS_RAN_ONCE 2 - /* The vCPU feature set for the VM is configured */ -#define KVM_ARCH_FLAG_VCPU_FEATURES_CONFIGURED 3 - /* PSCI SYSTEM_SUSPEND enabled for the guest */ -#define KVM_ARCH_FLAG_SYSTEM_SUSPEND_ENABLED 4 - /* VM counter offset */ -#define KVM_ARCH_FLAG_VM_COUNTER_OFFSET 5 - /* Timer PPIs made immutable */ -#define KVM_ARCH_FLAG_TIMER_PPIS_IMMUTABLE 6 - /* Initial ID reg values loaded */ -#define KVM_ARCH_FLAG_ID_REGS_INITIALIZED 7 - /* Fine-Grained UNDEF initialised */ -#define KVM_ARCH_FLAG_FGU_INITIALIZED 8 - /* SVE exposed to guest */ -#define KVM_ARCH_FLAG_GUEST_HAS_SVE 9 - /* MIDR_EL1, REVIDR_EL1, and AIDR_EL1 are writable from userspace */ -#define KVM_ARCH_FLAG_WRITABLE_IMP_ID_REGS 10 - /* Unhandled SEAs are taken to userspace */ -#define KVM_ARCH_FLAG_EXIT_SEA 11 unsigned long flags; /* VM-wide vCPU feature set */ @@ -838,13 +849,6 @@ extern s64 kvm_nvhe_sym(hyp_physvirt_offset); extern u64 kvm_nvhe_sym(hyp_cpu_logical_map)[NR_CPUS]; #define hyp_cpu_logical_map CHOOSE_NVHE_SYM(hyp_cpu_logical_map) -struct vcpu_reset_state { - unsigned long pc; - unsigned long r0; - bool be; - bool reset; -}; - struct vncr_tlb; struct kvm_vcpu_arch { @@ -1049,6 +1053,11 @@ struct kvm_vcpu_arch { /* pKVM VCPU setup completed */ #define VCPU_PKVM_FINALIZED __vcpu_single_flag(cflags, BIT(2)) +int kvm_arm_vcpu_finalize(struct kvm_vcpu *vcpu, int feature); +bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu); + +#define kvm_arm_vcpu_sve_finalized(vcpu) vcpu_get_flag(vcpu, VCPU_SVE_FINALIZED) + /* Exception pending */ #define PENDING_EXCEPTION __vcpu_single_flag(iflags, BIT(0)) /* @@ -1242,14 +1251,6 @@ struct kvm_vcpu_stat { u64 exits; }; -unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu); -int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices); -int kvm_arm_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); -int kvm_arm_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); - -unsigned long kvm_arm_num_sys_reg_descs(struct kvm_vcpu *vcpu); -int kvm_arm_copy_sys_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices); - int __kvm_arm_vcpu_get_events(struct kvm_vcpu *vcpu, struct kvm_vcpu_events *events); @@ -1328,6 +1329,14 @@ int __init populate_nv_trap_config(void); void kvm_calculate_traps(struct kvm_vcpu *vcpu); +unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu); +int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices); +int kvm_arm_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); +int kvm_arm_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); + +unsigned long kvm_arm_num_sys_reg_descs(struct kvm_vcpu *vcpu); +int kvm_arm_copy_sys_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices); + /* MMIO helpers */ void kvm_mmio_write_buf(void *buf, unsigned int len, unsigned long data); unsigned long kvm_mmio_read_buf(const void *buf, unsigned int len); @@ -1511,11 +1520,6 @@ struct kvm *kvm_arch_alloc_vm(void); #define vcpu_is_protected(vcpu) kvm_vm_is_protected((vcpu)->kvm) -int kvm_arm_vcpu_finalize(struct kvm_vcpu *vcpu, int feature); -bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu); - -#define kvm_arm_vcpu_sve_finalized(vcpu) vcpu_get_flag(vcpu, VCPU_SVE_FINALIZED) - #define kvm_has_mte(kvm) \ (system_supports_mte() && \ test_bit(KVM_ARCH_FLAG_MTE_ENABLED, &(kvm)->arch.flags)) diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 1aa601c95188..ab205f9db94a 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -1263,6 +1263,6 @@ FIELD_PREP(reg##_##field##_MASK, \ SYS_FIELD_VALUE(reg, field, val)) -#endif +#endif /* __ASSEMBLER__ */ #endif /* __ASM_SYSREG_H */ -- 2.53.0