diff options
Diffstat (limited to 'arch/riscv/include')
| -rw-r--r-- | arch/riscv/include/asm/irq.h | 2 | ||||
| -rw-r--r-- | arch/riscv/include/asm/kvm_aia.h | 6 | ||||
| -rw-r--r-- | arch/riscv/include/asm/kvm_gstage.h | 72 | ||||
| -rw-r--r-- | arch/riscv/include/asm/kvm_host.h | 106 | ||||
| -rw-r--r-- | arch/riscv/include/asm/kvm_mmu.h | 21 | ||||
| -rw-r--r-- | arch/riscv/include/asm/kvm_tlb.h | 84 | ||||
| -rw-r--r-- | arch/riscv/include/asm/kvm_vcpu_sbi.h | 12 | ||||
| -rw-r--r-- | arch/riscv/include/asm/kvm_vmid.h | 27 | ||||
| -rw-r--r-- | arch/riscv/include/asm/pgtable.h | 1 | ||||
| -rw-r--r-- | arch/riscv/include/asm/runtime-const.h | 2 | ||||
| -rw-r--r-- | arch/riscv/include/asm/uaccess.h | 7 | ||||
| -rw-r--r-- | arch/riscv/include/asm/vdso/getrandom.h | 2 | ||||
| -rw-r--r-- | arch/riscv/include/asm/vector.h | 12 | ||||
| -rw-r--r-- | arch/riscv/include/uapi/asm/kvm.h | 1 |
14 files changed, 242 insertions, 113 deletions
diff --git a/arch/riscv/include/asm/irq.h b/arch/riscv/include/asm/irq.h index 7b038f3b7cb0..59c975f750c9 100644 --- a/arch/riscv/include/asm/irq.h +++ b/arch/riscv/include/asm/irq.h @@ -22,6 +22,8 @@ void arch_trigger_cpumask_backtrace(const cpumask_t *mask, int exclude_cpu); void riscv_set_intc_hwnode_fn(struct fwnode_handle *(*fn)(void)); struct fwnode_handle *riscv_get_intc_hwnode(void); +int riscv_get_hart_index(struct fwnode_handle *fwnode, u32 logical_index, + u32 *hart_index); #ifdef CONFIG_ACPI diff --git a/arch/riscv/include/asm/kvm_aia.h b/arch/riscv/include/asm/kvm_aia.h index 3b643b9efc07..b04ecdd1a860 100644 --- a/arch/riscv/include/asm/kvm_aia.h +++ b/arch/riscv/include/asm/kvm_aia.h @@ -87,6 +87,9 @@ DECLARE_STATIC_KEY_FALSE(kvm_riscv_aia_available); extern struct kvm_device_ops kvm_riscv_aia_device_ops; +bool kvm_riscv_vcpu_aia_imsic_has_interrupt(struct kvm_vcpu *vcpu); +void kvm_riscv_vcpu_aia_imsic_load(struct kvm_vcpu *vcpu, int cpu); +void kvm_riscv_vcpu_aia_imsic_put(struct kvm_vcpu *vcpu); void kvm_riscv_vcpu_aia_imsic_release(struct kvm_vcpu *vcpu); int kvm_riscv_vcpu_aia_imsic_update(struct kvm_vcpu *vcpu); @@ -147,7 +150,7 @@ int kvm_riscv_vcpu_aia_rmw_ireg(struct kvm_vcpu *vcpu, unsigned int csr_num, int kvm_riscv_vcpu_aia_update(struct kvm_vcpu *vcpu); void kvm_riscv_vcpu_aia_reset(struct kvm_vcpu *vcpu); -int kvm_riscv_vcpu_aia_init(struct kvm_vcpu *vcpu); +void kvm_riscv_vcpu_aia_init(struct kvm_vcpu *vcpu); void kvm_riscv_vcpu_aia_deinit(struct kvm_vcpu *vcpu); int kvm_riscv_aia_inject_msi_by_id(struct kvm *kvm, u32 hart_index, @@ -161,7 +164,6 @@ void kvm_riscv_aia_destroy_vm(struct kvm *kvm); int kvm_riscv_aia_alloc_hgei(int cpu, struct kvm_vcpu *owner, void __iomem **hgei_va, phys_addr_t *hgei_pa); void kvm_riscv_aia_free_hgei(int cpu, int hgei); -void kvm_riscv_aia_wakeon_hgei(struct kvm_vcpu *owner, bool enable); void kvm_riscv_aia_enable(void); void kvm_riscv_aia_disable(void); diff --git a/arch/riscv/include/asm/kvm_gstage.h b/arch/riscv/include/asm/kvm_gstage.h new file mode 100644 index 000000000000..595e2183173e --- /dev/null +++ b/arch/riscv/include/asm/kvm_gstage.h @@ -0,0 +1,72 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2019 Western Digital Corporation or its affiliates. + * Copyright (c) 2025 Ventana Micro Systems Inc. + */ + +#ifndef __RISCV_KVM_GSTAGE_H_ +#define __RISCV_KVM_GSTAGE_H_ + +#include <linux/kvm_types.h> + +struct kvm_gstage { + struct kvm *kvm; + unsigned long flags; +#define KVM_GSTAGE_FLAGS_LOCAL BIT(0) + unsigned long vmid; + pgd_t *pgd; +}; + +struct kvm_gstage_mapping { + gpa_t addr; + pte_t pte; + u32 level; +}; + +#ifdef CONFIG_64BIT +#define kvm_riscv_gstage_index_bits 9 +#else +#define kvm_riscv_gstage_index_bits 10 +#endif + +extern unsigned long kvm_riscv_gstage_mode; +extern unsigned long kvm_riscv_gstage_pgd_levels; + +#define kvm_riscv_gstage_pgd_xbits 2 +#define kvm_riscv_gstage_pgd_size (1UL << (HGATP_PAGE_SHIFT + kvm_riscv_gstage_pgd_xbits)) +#define kvm_riscv_gstage_gpa_bits (HGATP_PAGE_SHIFT + \ + (kvm_riscv_gstage_pgd_levels * \ + kvm_riscv_gstage_index_bits) + \ + kvm_riscv_gstage_pgd_xbits) +#define kvm_riscv_gstage_gpa_size ((gpa_t)(1ULL << kvm_riscv_gstage_gpa_bits)) + +bool kvm_riscv_gstage_get_leaf(struct kvm_gstage *gstage, gpa_t addr, + pte_t **ptepp, u32 *ptep_level); + +int kvm_riscv_gstage_set_pte(struct kvm_gstage *gstage, + struct kvm_mmu_memory_cache *pcache, + const struct kvm_gstage_mapping *map); + +int kvm_riscv_gstage_map_page(struct kvm_gstage *gstage, + struct kvm_mmu_memory_cache *pcache, + gpa_t gpa, phys_addr_t hpa, unsigned long page_size, + bool page_rdonly, bool page_exec, + struct kvm_gstage_mapping *out_map); + +enum kvm_riscv_gstage_op { + GSTAGE_OP_NOP = 0, /* Nothing */ + GSTAGE_OP_CLEAR, /* Clear/Unmap */ + GSTAGE_OP_WP, /* Write-protect */ +}; + +void kvm_riscv_gstage_op_pte(struct kvm_gstage *gstage, gpa_t addr, + pte_t *ptep, u32 ptep_level, enum kvm_riscv_gstage_op op); + +void kvm_riscv_gstage_unmap_range(struct kvm_gstage *gstage, + gpa_t start, gpa_t size, bool may_block); + +void kvm_riscv_gstage_wp_range(struct kvm_gstage *gstage, gpa_t start, gpa_t end); + +void kvm_riscv_gstage_mode_detect(void); + +#endif diff --git a/arch/riscv/include/asm/kvm_host.h b/arch/riscv/include/asm/kvm_host.h index 85cfebc32e4c..d71d3299a335 100644 --- a/arch/riscv/include/asm/kvm_host.h +++ b/arch/riscv/include/asm/kvm_host.h @@ -16,6 +16,8 @@ #include <asm/hwcap.h> #include <asm/kvm_aia.h> #include <asm/ptrace.h> +#include <asm/kvm_tlb.h> +#include <asm/kvm_vmid.h> #include <asm/kvm_vcpu_fp.h> #include <asm/kvm_vcpu_insn.h> #include <asm/kvm_vcpu_sbi.h> @@ -36,14 +38,16 @@ #define KVM_REQ_UPDATE_HGATP KVM_ARCH_REQ(2) #define KVM_REQ_FENCE_I \ KVM_ARCH_REQ_FLAGS(3, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) -#define KVM_REQ_HFENCE_GVMA_VMID_ALL KVM_REQ_TLB_FLUSH #define KVM_REQ_HFENCE_VVMA_ALL \ KVM_ARCH_REQ_FLAGS(4, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) #define KVM_REQ_HFENCE \ KVM_ARCH_REQ_FLAGS(5, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) #define KVM_REQ_STEAL_UPDATE KVM_ARCH_REQ(6) +#define __KVM_HAVE_ARCH_FLUSH_REMOTE_TLBS_RANGE + #define KVM_HEDELEG_DEFAULT (BIT(EXC_INST_MISALIGNED) | \ + BIT(EXC_INST_ILLEGAL) | \ BIT(EXC_BREAKPOINT) | \ BIT(EXC_SYSCALL) | \ BIT(EXC_INST_PAGE_FAULT) | \ @@ -54,24 +58,6 @@ BIT(IRQ_VS_TIMER) | \ BIT(IRQ_VS_EXT)) -enum kvm_riscv_hfence_type { - KVM_RISCV_HFENCE_UNKNOWN = 0, - KVM_RISCV_HFENCE_GVMA_VMID_GPA, - KVM_RISCV_HFENCE_VVMA_ASID_GVA, - KVM_RISCV_HFENCE_VVMA_ASID_ALL, - KVM_RISCV_HFENCE_VVMA_GVA, -}; - -struct kvm_riscv_hfence { - enum kvm_riscv_hfence_type type; - unsigned long asid; - unsigned long order; - gpa_t addr; - gpa_t size; -}; - -#define KVM_RISCV_VCPU_MAX_HFENCE 64 - struct kvm_vm_stat { struct kvm_vm_stat_generic generic; }; @@ -97,15 +83,6 @@ struct kvm_vcpu_stat { struct kvm_arch_memory_slot { }; -struct kvm_vmid { - /* - * Writes to vmid_version and vmid happen with vmid_lock held - * whereas reads happen without any lock held. - */ - unsigned long vmid_version; - unsigned long vmid; -}; - struct kvm_arch { /* G-stage vmid */ struct kvm_vmid vmid; @@ -306,76 +283,8 @@ static inline bool kvm_arch_pmi_in_guest(struct kvm_vcpu *vcpu) return IS_ENABLED(CONFIG_GUEST_PERF_EVENTS) && !!vcpu; } -#define KVM_RISCV_GSTAGE_TLB_MIN_ORDER 12 - -void kvm_riscv_local_hfence_gvma_vmid_gpa(unsigned long vmid, - gpa_t gpa, gpa_t gpsz, - unsigned long order); -void kvm_riscv_local_hfence_gvma_vmid_all(unsigned long vmid); -void kvm_riscv_local_hfence_gvma_gpa(gpa_t gpa, gpa_t gpsz, - unsigned long order); -void kvm_riscv_local_hfence_gvma_all(void); -void kvm_riscv_local_hfence_vvma_asid_gva(unsigned long vmid, - unsigned long asid, - unsigned long gva, - unsigned long gvsz, - unsigned long order); -void kvm_riscv_local_hfence_vvma_asid_all(unsigned long vmid, - unsigned long asid); -void kvm_riscv_local_hfence_vvma_gva(unsigned long vmid, - unsigned long gva, unsigned long gvsz, - unsigned long order); -void kvm_riscv_local_hfence_vvma_all(unsigned long vmid); - -void kvm_riscv_local_tlb_sanitize(struct kvm_vcpu *vcpu); - -void kvm_riscv_fence_i_process(struct kvm_vcpu *vcpu); -void kvm_riscv_hfence_gvma_vmid_all_process(struct kvm_vcpu *vcpu); -void kvm_riscv_hfence_vvma_all_process(struct kvm_vcpu *vcpu); -void kvm_riscv_hfence_process(struct kvm_vcpu *vcpu); - -void kvm_riscv_fence_i(struct kvm *kvm, - unsigned long hbase, unsigned long hmask); -void kvm_riscv_hfence_gvma_vmid_gpa(struct kvm *kvm, - unsigned long hbase, unsigned long hmask, - gpa_t gpa, gpa_t gpsz, - unsigned long order); -void kvm_riscv_hfence_gvma_vmid_all(struct kvm *kvm, - unsigned long hbase, unsigned long hmask); -void kvm_riscv_hfence_vvma_asid_gva(struct kvm *kvm, - unsigned long hbase, unsigned long hmask, - unsigned long gva, unsigned long gvsz, - unsigned long order, unsigned long asid); -void kvm_riscv_hfence_vvma_asid_all(struct kvm *kvm, - unsigned long hbase, unsigned long hmask, - unsigned long asid); -void kvm_riscv_hfence_vvma_gva(struct kvm *kvm, - unsigned long hbase, unsigned long hmask, - unsigned long gva, unsigned long gvsz, - unsigned long order); -void kvm_riscv_hfence_vvma_all(struct kvm *kvm, - unsigned long hbase, unsigned long hmask); - -int kvm_riscv_gstage_ioremap(struct kvm *kvm, gpa_t gpa, - phys_addr_t hpa, unsigned long size, - bool writable, bool in_atomic); -void kvm_riscv_gstage_iounmap(struct kvm *kvm, gpa_t gpa, - unsigned long size); -int kvm_riscv_gstage_map(struct kvm_vcpu *vcpu, - struct kvm_memory_slot *memslot, - gpa_t gpa, unsigned long hva, bool is_write); -int kvm_riscv_gstage_alloc_pgd(struct kvm *kvm); -void kvm_riscv_gstage_free_pgd(struct kvm *kvm); -void kvm_riscv_gstage_update_hgatp(struct kvm_vcpu *vcpu); -void __init kvm_riscv_gstage_mode_detect(void); -unsigned long __init kvm_riscv_gstage_mode(void); -int kvm_riscv_gstage_gpa_bits(void); - -void __init kvm_riscv_gstage_vmid_detect(void); -unsigned long kvm_riscv_gstage_vmid_bits(void); -int kvm_riscv_gstage_vmid_init(struct kvm *kvm); -bool kvm_riscv_gstage_vmid_ver_changed(struct kvm_vmid *vmid); -void kvm_riscv_gstage_vmid_update(struct kvm_vcpu *vcpu); +static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} +static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} int kvm_riscv_setup_default_irq_routing(struct kvm *kvm, u32 lines); @@ -412,7 +321,6 @@ void __kvm_riscv_vcpu_power_on(struct kvm_vcpu *vcpu); void kvm_riscv_vcpu_power_on(struct kvm_vcpu *vcpu); bool kvm_riscv_vcpu_stopped(struct kvm_vcpu *vcpu); -void kvm_riscv_vcpu_sbi_sta_reset(struct kvm_vcpu *vcpu); void kvm_riscv_vcpu_record_steal_time(struct kvm_vcpu *vcpu); #endif /* __RISCV_KVM_HOST_H__ */ diff --git a/arch/riscv/include/asm/kvm_mmu.h b/arch/riscv/include/asm/kvm_mmu.h new file mode 100644 index 000000000000..5439e76f0a96 --- /dev/null +++ b/arch/riscv/include/asm/kvm_mmu.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2025 Ventana Micro Systems Inc. + */ + +#ifndef __RISCV_KVM_MMU_H_ +#define __RISCV_KVM_MMU_H_ + +#include <asm/kvm_gstage.h> + +int kvm_riscv_mmu_ioremap(struct kvm *kvm, gpa_t gpa, phys_addr_t hpa, + unsigned long size, bool writable, bool in_atomic); +void kvm_riscv_mmu_iounmap(struct kvm *kvm, gpa_t gpa, unsigned long size); +int kvm_riscv_mmu_map(struct kvm_vcpu *vcpu, struct kvm_memory_slot *memslot, + gpa_t gpa, unsigned long hva, bool is_write, + struct kvm_gstage_mapping *out_map); +int kvm_riscv_mmu_alloc_pgd(struct kvm *kvm); +void kvm_riscv_mmu_free_pgd(struct kvm *kvm); +void kvm_riscv_mmu_update_hgatp(struct kvm_vcpu *vcpu); + +#endif diff --git a/arch/riscv/include/asm/kvm_tlb.h b/arch/riscv/include/asm/kvm_tlb.h new file mode 100644 index 000000000000..38a2f933ad3a --- /dev/null +++ b/arch/riscv/include/asm/kvm_tlb.h @@ -0,0 +1,84 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2025 Ventana Micro Systems Inc. + */ + +#ifndef __RISCV_KVM_TLB_H_ +#define __RISCV_KVM_TLB_H_ + +#include <linux/kvm_types.h> + +enum kvm_riscv_hfence_type { + KVM_RISCV_HFENCE_UNKNOWN = 0, + KVM_RISCV_HFENCE_GVMA_VMID_GPA, + KVM_RISCV_HFENCE_GVMA_VMID_ALL, + KVM_RISCV_HFENCE_VVMA_ASID_GVA, + KVM_RISCV_HFENCE_VVMA_ASID_ALL, + KVM_RISCV_HFENCE_VVMA_GVA, + KVM_RISCV_HFENCE_VVMA_ALL +}; + +struct kvm_riscv_hfence { + enum kvm_riscv_hfence_type type; + unsigned long asid; + unsigned long vmid; + unsigned long order; + gpa_t addr; + gpa_t size; +}; + +#define KVM_RISCV_VCPU_MAX_HFENCE 64 + +#define KVM_RISCV_GSTAGE_TLB_MIN_ORDER 12 + +void kvm_riscv_local_hfence_gvma_vmid_gpa(unsigned long vmid, + gpa_t gpa, gpa_t gpsz, + unsigned long order); +void kvm_riscv_local_hfence_gvma_vmid_all(unsigned long vmid); +void kvm_riscv_local_hfence_gvma_gpa(gpa_t gpa, gpa_t gpsz, + unsigned long order); +void kvm_riscv_local_hfence_gvma_all(void); +void kvm_riscv_local_hfence_vvma_asid_gva(unsigned long vmid, + unsigned long asid, + unsigned long gva, + unsigned long gvsz, + unsigned long order); +void kvm_riscv_local_hfence_vvma_asid_all(unsigned long vmid, + unsigned long asid); +void kvm_riscv_local_hfence_vvma_gva(unsigned long vmid, + unsigned long gva, unsigned long gvsz, + unsigned long order); +void kvm_riscv_local_hfence_vvma_all(unsigned long vmid); + +void kvm_riscv_tlb_flush_process(struct kvm_vcpu *vcpu); + +void kvm_riscv_fence_i_process(struct kvm_vcpu *vcpu); +void kvm_riscv_hfence_vvma_all_process(struct kvm_vcpu *vcpu); +void kvm_riscv_hfence_process(struct kvm_vcpu *vcpu); + +void kvm_riscv_fence_i(struct kvm *kvm, + unsigned long hbase, unsigned long hmask); +void kvm_riscv_hfence_gvma_vmid_gpa(struct kvm *kvm, + unsigned long hbase, unsigned long hmask, + gpa_t gpa, gpa_t gpsz, + unsigned long order, unsigned long vmid); +void kvm_riscv_hfence_gvma_vmid_all(struct kvm *kvm, + unsigned long hbase, unsigned long hmask, + unsigned long vmid); +void kvm_riscv_hfence_vvma_asid_gva(struct kvm *kvm, + unsigned long hbase, unsigned long hmask, + unsigned long gva, unsigned long gvsz, + unsigned long order, unsigned long asid, + unsigned long vmid); +void kvm_riscv_hfence_vvma_asid_all(struct kvm *kvm, + unsigned long hbase, unsigned long hmask, + unsigned long asid, unsigned long vmid); +void kvm_riscv_hfence_vvma_gva(struct kvm *kvm, + unsigned long hbase, unsigned long hmask, + unsigned long gva, unsigned long gvsz, + unsigned long order, unsigned long vmid); +void kvm_riscv_hfence_vvma_all(struct kvm *kvm, + unsigned long hbase, unsigned long hmask, + unsigned long vmid); + +#endif diff --git a/arch/riscv/include/asm/kvm_vcpu_sbi.h b/arch/riscv/include/asm/kvm_vcpu_sbi.h index 439ab2b3534f..d678fd7e5973 100644 --- a/arch/riscv/include/asm/kvm_vcpu_sbi.h +++ b/arch/riscv/include/asm/kvm_vcpu_sbi.h @@ -49,6 +49,16 @@ struct kvm_vcpu_sbi_extension { /* Extension specific probe function */ unsigned long (*probe)(struct kvm_vcpu *vcpu); + + /* + * Init/deinit function called once during VCPU init/destroy. These + * might be use if the SBI extensions need to allocate or do specific + * init time only configuration. + */ + int (*init)(struct kvm_vcpu *vcpu); + void (*deinit)(struct kvm_vcpu *vcpu); + + void (*reset)(struct kvm_vcpu *vcpu); }; void kvm_riscv_vcpu_sbi_forward(struct kvm_vcpu *vcpu, struct kvm_run *run); @@ -72,6 +82,8 @@ const struct kvm_vcpu_sbi_extension *kvm_vcpu_sbi_find_ext( bool riscv_vcpu_supports_sbi_ext(struct kvm_vcpu *vcpu, int idx); int kvm_riscv_vcpu_sbi_ecall(struct kvm_vcpu *vcpu, struct kvm_run *run); void kvm_riscv_vcpu_sbi_init(struct kvm_vcpu *vcpu); +void kvm_riscv_vcpu_sbi_deinit(struct kvm_vcpu *vcpu); +void kvm_riscv_vcpu_sbi_reset(struct kvm_vcpu *vcpu); int kvm_riscv_vcpu_get_reg_sbi_sta(struct kvm_vcpu *vcpu, unsigned long reg_num, unsigned long *reg_val); diff --git a/arch/riscv/include/asm/kvm_vmid.h b/arch/riscv/include/asm/kvm_vmid.h new file mode 100644 index 000000000000..ab98e1434fb7 --- /dev/null +++ b/arch/riscv/include/asm/kvm_vmid.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2025 Ventana Micro Systems Inc. + */ + +#ifndef __RISCV_KVM_VMID_H_ +#define __RISCV_KVM_VMID_H_ + +#include <linux/kvm_types.h> + +struct kvm_vmid { + /* + * Writes to vmid_version and vmid happen with vmid_lock held + * whereas reads happen without any lock held. + */ + unsigned long vmid_version; + unsigned long vmid; +}; + +void __init kvm_riscv_gstage_vmid_detect(void); +unsigned long kvm_riscv_gstage_vmid_bits(void); +int kvm_riscv_gstage_vmid_init(struct kvm *kvm); +bool kvm_riscv_gstage_vmid_ver_changed(struct kvm_vmid *vmid); +void kvm_riscv_gstage_vmid_update(struct kvm_vcpu *vcpu); +void kvm_riscv_gstage_vmid_sanitize(struct kvm_vcpu *vcpu); + +#endif diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 438ce7df24c3..5bd5aae60d53 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -1075,7 +1075,6 @@ static inline pte_t pte_swp_clear_exclusive(pte_t pte) */ #ifdef CONFIG_64BIT #define TASK_SIZE_64 (PGDIR_SIZE * PTRS_PER_PGD / 2) -#define TASK_SIZE_MAX LONG_MAX #ifdef CONFIG_COMPAT #define TASK_SIZE_32 (_AC(0x80000000, UL) - PAGE_SIZE) diff --git a/arch/riscv/include/asm/runtime-const.h b/arch/riscv/include/asm/runtime-const.h index 451fd76b8811..d766e2b9e6df 100644 --- a/arch/riscv/include/asm/runtime-const.h +++ b/arch/riscv/include/asm/runtime-const.h @@ -206,7 +206,7 @@ static inline void __runtime_fixup_32(__le16 *lui_parcel, __le16 *addi_parcel, u addi_insn_mask &= 0x07fff; } - if (lower_immediate & 0x00000fff) { + if (lower_immediate & 0x00000fff || lui_insn == RISCV_INSN_NOP4) { /* replace upper 12 bits of addi with lower 12 bits of val */ addi_insn &= addi_insn_mask; addi_insn |= (lower_immediate & 0x00000fff) << 20; diff --git a/arch/riscv/include/asm/uaccess.h b/arch/riscv/include/asm/uaccess.h index d472da4450e6..b88a6218b7f2 100644 --- a/arch/riscv/include/asm/uaccess.h +++ b/arch/riscv/include/asm/uaccess.h @@ -127,6 +127,7 @@ do { \ #ifdef CONFIG_CC_HAS_ASM_GOTO_OUTPUT #define __get_user_8(x, ptr, label) \ +do { \ u32 __user *__ptr = (u32 __user *)(ptr); \ u32 __lo, __hi; \ asm_goto_output( \ @@ -141,7 +142,7 @@ do { \ : : label); \ (x) = (__typeof__(x))((__typeof__((x) - (x)))( \ (((u64)__hi << 32) | __lo))); \ - +} while (0) #else /* !CONFIG_CC_HAS_ASM_GOTO_OUTPUT */ #define __get_user_8(x, ptr, label) \ do { \ @@ -310,8 +311,8 @@ do { \ do { \ if (!IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && \ !IS_ALIGNED((uintptr_t)__gu_ptr, sizeof(*__gu_ptr))) { \ - __inttype(x) val = (__inttype(x))x; \ - if (__asm_copy_to_user_sum_enabled(__gu_ptr, &(val), sizeof(*__gu_ptr))) \ + __inttype(x) ___val = (__inttype(x))x; \ + if (__asm_copy_to_user_sum_enabled(__gu_ptr, &(___val), sizeof(*__gu_ptr))) \ goto label; \ break; \ } \ diff --git a/arch/riscv/include/asm/vdso/getrandom.h b/arch/riscv/include/asm/vdso/getrandom.h index 8dc92441702a..c6d66895c1f5 100644 --- a/arch/riscv/include/asm/vdso/getrandom.h +++ b/arch/riscv/include/asm/vdso/getrandom.h @@ -18,7 +18,7 @@ static __always_inline ssize_t getrandom_syscall(void *_buffer, size_t _len, uns register unsigned int flags asm("a2") = _flags; asm volatile ("ecall\n" - : "+r" (ret) + : "=r" (ret) : "r" (nr), "r" (buffer), "r" (len), "r" (flags) : "memory"); diff --git a/arch/riscv/include/asm/vector.h b/arch/riscv/include/asm/vector.h index 45c9b426fcc5..b61786d43c20 100644 --- a/arch/riscv/include/asm/vector.h +++ b/arch/riscv/include/asm/vector.h @@ -205,11 +205,11 @@ static inline void __riscv_v_vstate_save(struct __riscv_v_ext_state *save_to, THEAD_VSETVLI_T4X0E8M8D1 THEAD_VSB_V_V0T0 "add t0, t0, t4\n\t" - THEAD_VSB_V_V0T0 + THEAD_VSB_V_V8T0 "add t0, t0, t4\n\t" - THEAD_VSB_V_V0T0 + THEAD_VSB_V_V16T0 "add t0, t0, t4\n\t" - THEAD_VSB_V_V0T0 + THEAD_VSB_V_V24T0 : : "r" (datap) : "memory", "t0", "t4"); } else { asm volatile ( @@ -241,11 +241,11 @@ static inline void __riscv_v_vstate_restore(struct __riscv_v_ext_state *restore_ THEAD_VSETVLI_T4X0E8M8D1 THEAD_VLB_V_V0T0 "add t0, t0, t4\n\t" - THEAD_VLB_V_V0T0 + THEAD_VLB_V_V8T0 "add t0, t0, t4\n\t" - THEAD_VLB_V_V0T0 + THEAD_VLB_V_V16T0 "add t0, t0, t4\n\t" - THEAD_VLB_V_V0T0 + THEAD_VLB_V_V24T0 : : "r" (datap) : "memory", "t0", "t4"); } else { asm volatile ( diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index 5f59fd226cc5..ef27d4289da1 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -18,6 +18,7 @@ #define __KVM_HAVE_IRQ_LINE #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 +#define KVM_DIRTY_LOG_PAGE_OFFSET 64 #define KVM_INTERRUPT_SET -1U #define KVM_INTERRUPT_UNSET -2U |