diff options
Diffstat (limited to 'arch/riscv/include')
| -rw-r--r-- | arch/riscv/include/asm/kvm_host.h | 1 | ||||
| -rw-r--r-- | arch/riscv/include/asm/kvm_vcpu_sbi.h | 5 | ||||
| -rw-r--r-- | arch/riscv/include/asm/page.h | 2 | ||||
| -rw-r--r-- | arch/riscv/include/asm/pgtable.h | 1 | ||||
| -rw-r--r-- | arch/riscv/include/asm/sbi.h | 27 | ||||
| -rw-r--r-- | arch/riscv/include/asm/uaccess.h | 33 |
6 files changed, 30 insertions, 39 deletions
diff --git a/arch/riscv/include/asm/kvm_host.h b/arch/riscv/include/asm/kvm_host.h index 99ef6a120617..78da839657e5 100644 --- a/arch/riscv/include/asm/kvm_host.h +++ b/arch/riscv/include/asm/kvm_host.h @@ -228,6 +228,7 @@ void kvm_riscv_stage2_vmid_update(struct kvm_vcpu *vcpu); void __kvm_riscv_unpriv_trap(void); +void kvm_riscv_vcpu_wfi(struct kvm_vcpu *vcpu); unsigned long kvm_riscv_vcpu_unpriv_read(struct kvm_vcpu *vcpu, bool read_insn, unsigned long guest_addr, diff --git a/arch/riscv/include/asm/kvm_vcpu_sbi.h b/arch/riscv/include/asm/kvm_vcpu_sbi.h index 76e4e17a3e00..83d6d4d2b1df 100644 --- a/arch/riscv/include/asm/kvm_vcpu_sbi.h +++ b/arch/riscv/include/asm/kvm_vcpu_sbi.h @@ -12,7 +12,7 @@ #define KVM_SBI_IMPID 3 #define KVM_SBI_VERSION_MAJOR 0 -#define KVM_SBI_VERSION_MINOR 2 +#define KVM_SBI_VERSION_MINOR 3 struct kvm_vcpu_sbi_extension { unsigned long extid_start; @@ -28,6 +28,9 @@ struct kvm_vcpu_sbi_extension { }; void kvm_riscv_vcpu_sbi_forward(struct kvm_vcpu *vcpu, struct kvm_run *run); +void kvm_riscv_vcpu_sbi_system_reset(struct kvm_vcpu *vcpu, + struct kvm_run *run, + u32 type, u64 flags); const struct kvm_vcpu_sbi_extension *kvm_vcpu_sbi_find_ext(unsigned long extid); #endif /* __RISCV_KVM_VCPU_SBI_H__ */ diff --git a/arch/riscv/include/asm/page.h b/arch/riscv/include/asm/page.h index 618779409203..1526e410e802 100644 --- a/arch/riscv/include/asm/page.h +++ b/arch/riscv/include/asm/page.h @@ -120,7 +120,7 @@ extern phys_addr_t phys_ram_base; ((x) >= kernel_map.virt_addr && (x) < (kernel_map.virt_addr + kernel_map.size)) #define is_linear_mapping(x) \ - ((x) >= PAGE_OFFSET && (!IS_ENABLED(CONFIG_64BIT) || (x) < kernel_map.virt_addr)) + ((x) >= PAGE_OFFSET && (!IS_ENABLED(CONFIG_64BIT) || (x) < PAGE_OFFSET + KERN_VIRT_SIZE)) #define linear_mapping_pa_to_va(x) ((void *)((unsigned long)(x) + kernel_map.va_pa_offset)) #define kernel_mapping_pa_to_va(y) ({ \ diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 351cabcd528e..046b44225623 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -13,6 +13,7 @@ #ifndef CONFIG_MMU #define KERNEL_LINK_ADDR PAGE_OFFSET +#define KERN_VIRT_SIZE (UL(-1)) #else #define ADDRESS_SPACE_END (UL(-1)) diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h index 4a430ae60eaa..9e3c2cf1edaf 100644 --- a/arch/riscv/include/asm/sbi.h +++ b/arch/riscv/include/asm/sbi.h @@ -72,15 +72,32 @@ enum sbi_ext_hsm_fid { SBI_EXT_HSM_HART_START = 0, SBI_EXT_HSM_HART_STOP, SBI_EXT_HSM_HART_STATUS, + SBI_EXT_HSM_HART_SUSPEND, }; -enum sbi_hsm_hart_status { - SBI_HSM_HART_STATUS_STARTED = 0, - SBI_HSM_HART_STATUS_STOPPED, - SBI_HSM_HART_STATUS_START_PENDING, - SBI_HSM_HART_STATUS_STOP_PENDING, +enum sbi_hsm_hart_state { + SBI_HSM_STATE_STARTED = 0, + SBI_HSM_STATE_STOPPED, + SBI_HSM_STATE_START_PENDING, + SBI_HSM_STATE_STOP_PENDING, + SBI_HSM_STATE_SUSPENDED, + SBI_HSM_STATE_SUSPEND_PENDING, + SBI_HSM_STATE_RESUME_PENDING, }; +#define SBI_HSM_SUSP_BASE_MASK 0x7fffffff +#define SBI_HSM_SUSP_NON_RET_BIT 0x80000000 +#define SBI_HSM_SUSP_PLAT_BASE 0x10000000 + +#define SBI_HSM_SUSPEND_RET_DEFAULT 0x00000000 +#define SBI_HSM_SUSPEND_RET_PLATFORM SBI_HSM_SUSP_PLAT_BASE +#define SBI_HSM_SUSPEND_RET_LAST SBI_HSM_SUSP_BASE_MASK +#define SBI_HSM_SUSPEND_NON_RET_DEFAULT SBI_HSM_SUSP_NON_RET_BIT +#define SBI_HSM_SUSPEND_NON_RET_PLATFORM (SBI_HSM_SUSP_NON_RET_BIT | \ + SBI_HSM_SUSP_PLAT_BASE) +#define SBI_HSM_SUSPEND_NON_RET_LAST (SBI_HSM_SUSP_NON_RET_BIT | \ + SBI_HSM_SUSP_BASE_MASK) + enum sbi_ext_srst_fid { SBI_EXT_SRST_RESET = 0, }; diff --git a/arch/riscv/include/asm/uaccess.h b/arch/riscv/include/asm/uaccess.h index c701a5e57a2b..855450bed9f5 100644 --- a/arch/riscv/include/asm/uaccess.h +++ b/arch/riscv/include/asm/uaccess.h @@ -21,42 +21,13 @@ #include <asm/byteorder.h> #include <asm/extable.h> #include <asm/asm.h> +#include <asm-generic/access_ok.h> #define __enable_user_access() \ __asm__ __volatile__ ("csrs sstatus, %0" : : "r" (SR_SUM) : "memory") #define __disable_user_access() \ __asm__ __volatile__ ("csrc sstatus, %0" : : "r" (SR_SUM) : "memory") -/** - * access_ok: - Checks if a user space pointer is valid - * @addr: User space pointer to start of block to check - * @size: Size of block to check - * - * Context: User context only. This function may sleep. - * - * Checks if a pointer to a block of memory in user space is valid. - * - * Returns true (nonzero) if the memory block may be valid, false (zero) - * if it is definitely invalid. - * - * Note that, depending on architecture, this function probably just - * checks that the pointer is in the user space range - after calling - * this function, memory access functions may still return -EFAULT. - */ -#define access_ok(addr, size) ({ \ - __chk_user_ptr(addr); \ - likely(__access_ok((unsigned long __force)(addr), (size))); \ -}) - -/* - * Ensure that the range [addr, addr+size) is within the process's - * address space - */ -static inline int __access_ok(unsigned long addr, unsigned long size) -{ - return size <= TASK_SIZE && addr <= TASK_SIZE - size; -} - /* * The exception table consists of pairs of addresses: the first is the * address of an instruction that is allowed to fault, and the second is @@ -346,8 +317,6 @@ unsigned long __must_check clear_user(void __user *to, unsigned long n) __clear_user(to, n) : n; } -#define HAVE_GET_KERNEL_NOFAULT - #define __get_kernel_nofault(dst, src, type, err_label) \ do { \ long __kr_err; \ |