From 0a75ca277c9f1145df37f8bbad10aecf0049a554 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Tue, 5 Mar 2013 13:14:47 +0100 Subject: s390/kvm,gaccess: add address space annotations Add missing address space annotations to all put_guest()/get_guest() callers. Signed-off-by: Heiko Carstens Acked-by: Christian Borntraeger Acked-by: Martin Schwidefsky Signed-off-by: Martin Schwidefsky Signed-off-by: Christian Borntraeger Signed-off-by: Marcelo Tosatti --- arch/s390/kvm/gaccess.h | 21 +++++++++++---------- arch/s390/kvm/intercept.c | 4 ++-- arch/s390/kvm/interrupt.c | 36 ++++++++++++++++++------------------ arch/s390/kvm/priv.c | 22 +++++++++++----------- 4 files changed, 42 insertions(+), 41 deletions(-) (limited to 'arch') diff --git a/arch/s390/kvm/gaccess.h b/arch/s390/kvm/gaccess.h index 8608d7e6a33..302e0e52b00 100644 --- a/arch/s390/kvm/gaccess.h +++ b/arch/s390/kvm/gaccess.h @@ -18,8 +18,9 @@ #include #include "kvm-s390.h" -static inline void *__gptr_to_uptr(struct kvm_vcpu *vcpu, void *gptr, - int prefixing) +static inline void __user *__gptr_to_uptr(struct kvm_vcpu *vcpu, + void __user *gptr, + int prefixing) { unsigned long prefix = vcpu->arch.sie_block->prefix; unsigned long gaddr = (unsigned long) gptr; @@ -34,14 +35,14 @@ static inline void *__gptr_to_uptr(struct kvm_vcpu *vcpu, void *gptr, uaddr = gmap_fault(gaddr, vcpu->arch.gmap); if (IS_ERR_VALUE(uaddr)) uaddr = -EFAULT; - return (void *)uaddr; + return (void __user *)uaddr; } #define get_guest(vcpu, x, gptr) \ ({ \ __typeof__(gptr) __uptr = __gptr_to_uptr(vcpu, gptr, 1);\ int __mask = sizeof(__typeof__(*(gptr))) - 1; \ - int __ret = PTR_RET(__uptr); \ + int __ret = PTR_RET((void __force *)__uptr); \ \ if (!__ret) { \ BUG_ON((unsigned long)__uptr & __mask); \ @@ -54,7 +55,7 @@ static inline void *__gptr_to_uptr(struct kvm_vcpu *vcpu, void *gptr, ({ \ __typeof__(gptr) __uptr = __gptr_to_uptr(vcpu, gptr, 1);\ int __mask = sizeof(__typeof__(*(gptr))) - 1; \ - int __ret = PTR_RET(__uptr); \ + int __ret = PTR_RET((void __force *)__uptr); \ \ if (!__ret) { \ BUG_ON((unsigned long)__uptr & __mask); \ @@ -68,19 +69,19 @@ static inline int __copy_guest(struct kvm_vcpu *vcpu, unsigned long to, int to_guest, int prefixing) { unsigned long _len, rc; - void *uptr; + void __user *uptr; while (len) { - uptr = to_guest ? (void *)to : (void *)from; + uptr = to_guest ? (void __user *)to : (void __user *)from; uptr = __gptr_to_uptr(vcpu, uptr, prefixing); - if (IS_ERR(uptr)) + if (IS_ERR((void __force *)uptr)) return -EFAULT; _len = PAGE_SIZE - ((unsigned long)uptr & (PAGE_SIZE - 1)); _len = min(_len, len); if (to_guest) - rc = copy_to_user(uptr, (void *)from, _len); + rc = copy_to_user((void __user *) uptr, (void *)from, _len); else - rc = copy_from_user((void *)to, uptr, _len); + rc = copy_from_user((void *)to, (void __user *)uptr, _len); if (rc) return -EFAULT; len -= _len; diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c index 64744003a66..c6ba4dfd7f1 100644 --- a/arch/s390/kvm/intercept.c +++ b/arch/s390/kvm/intercept.c @@ -44,7 +44,7 @@ static int handle_lctlg(struct kvm_vcpu *vcpu) do { rc = get_guest(vcpu, vcpu->arch.sie_block->gcr[reg], - (u64 *) useraddr); + (u64 __user *) useraddr); if (rc) { kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); break; @@ -78,7 +78,7 @@ static int handle_lctl(struct kvm_vcpu *vcpu) reg = reg1; do { - rc = get_guest(vcpu, val, (u32 *) useraddr); + rc = get_guest(vcpu, val, (u32 __user *) useraddr); if (rc) { kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); break; diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index d78824b18e9..5c948177529 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -188,9 +188,9 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu, vcpu->stat.deliver_emergency_signal++; trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type, inti->emerg.code, 0); - rc = put_guest(vcpu, 0x1201, (u16 *)__LC_EXT_INT_CODE); + rc = put_guest(vcpu, 0x1201, (u16 __user *)__LC_EXT_INT_CODE); rc |= put_guest(vcpu, inti->emerg.code, - (u16 *)__LC_EXT_CPU_ADDR); + (u16 __user *)__LC_EXT_CPU_ADDR); rc |= copy_to_guest(vcpu, __LC_EXT_OLD_PSW, &vcpu->arch.sie_block->gpsw, sizeof(psw_t)); rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw, @@ -201,9 +201,9 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu, vcpu->stat.deliver_external_call++; trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type, inti->extcall.code, 0); - rc = put_guest(vcpu, 0x1202, (u16 *)__LC_EXT_INT_CODE); + rc = put_guest(vcpu, 0x1202, (u16 __user *)__LC_EXT_INT_CODE); rc |= put_guest(vcpu, inti->extcall.code, - (u16 *)__LC_EXT_CPU_ADDR); + (u16 __user *)__LC_EXT_CPU_ADDR); rc |= copy_to_guest(vcpu, __LC_EXT_OLD_PSW, &vcpu->arch.sie_block->gpsw, sizeof(psw_t)); rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw, @@ -215,13 +215,13 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu, vcpu->stat.deliver_service_signal++; trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type, inti->ext.ext_params, 0); - rc = put_guest(vcpu, 0x2401, (u16 *)__LC_EXT_INT_CODE); + rc = put_guest(vcpu, 0x2401, (u16 __user *)__LC_EXT_INT_CODE); rc |= copy_to_guest(vcpu, __LC_EXT_OLD_PSW, &vcpu->arch.sie_block->gpsw, sizeof(psw_t)); rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw, __LC_EXT_NEW_PSW, sizeof(psw_t)); rc |= put_guest(vcpu, inti->ext.ext_params, - (u32 *)__LC_EXT_PARAMS); + (u32 __user *)__LC_EXT_PARAMS); break; case KVM_S390_INT_VIRTIO: VCPU_EVENT(vcpu, 4, "interrupt: virtio parm:%x,parm64:%llx", @@ -230,16 +230,16 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu, trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type, inti->ext.ext_params, inti->ext.ext_params2); - rc = put_guest(vcpu, 0x2603, (u16 *)__LC_EXT_INT_CODE); - rc |= put_guest(vcpu, 0x0d00, (u16 *)__LC_EXT_CPU_ADDR); + rc = put_guest(vcpu, 0x2603, (u16 __user *)__LC_EXT_INT_CODE); + rc |= put_guest(vcpu, 0x0d00, (u16 __user *)__LC_EXT_CPU_ADDR); rc |= copy_to_guest(vcpu, __LC_EXT_OLD_PSW, &vcpu->arch.sie_block->gpsw, sizeof(psw_t)); rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw, __LC_EXT_NEW_PSW, sizeof(psw_t)); rc |= put_guest(vcpu, inti->ext.ext_params, - (u32 *)__LC_EXT_PARAMS); + (u32 __user *)__LC_EXT_PARAMS); rc |= put_guest(vcpu, inti->ext.ext_params2, - (u64 *)__LC_EXT_PARAMS2); + (u64 __user *)__LC_EXT_PARAMS2); break; case KVM_S390_SIGP_STOP: VCPU_EVENT(vcpu, 4, "%s", "interrupt: cpu stop"); @@ -278,9 +278,9 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu, vcpu->stat.deliver_program_int++; trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type, inti->pgm.code, 0); - rc = put_guest(vcpu, inti->pgm.code, (u16 *)__LC_PGM_INT_CODE); + rc = put_guest(vcpu, inti->pgm.code, (u16 __user *)__LC_PGM_INT_CODE); rc |= put_guest(vcpu, table[vcpu->arch.sie_block->ipa >> 14], - (u16 *)__LC_PGM_ILC); + (u16 __user *)__LC_PGM_ILC); rc |= copy_to_guest(vcpu, __LC_PGM_OLD_PSW, &vcpu->arch.sie_block->gpsw, sizeof(psw_t)); rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw, @@ -295,7 +295,7 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu, inti->mchk.mcic); rc = kvm_s390_vcpu_store_status(vcpu, KVM_S390_STORE_STATUS_PREFIXED); - rc |= put_guest(vcpu, inti->mchk.mcic, (u64 *) __LC_MCCK_CODE); + rc |= put_guest(vcpu, inti->mchk.mcic, (u64 __user *) __LC_MCCK_CODE); rc |= copy_to_guest(vcpu, __LC_MCK_OLD_PSW, &vcpu->arch.sie_block->gpsw, sizeof(psw_t)); rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw, @@ -313,13 +313,13 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu, trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type, param0, param1); rc = put_guest(vcpu, inti->io.subchannel_id, - (u16 *) __LC_SUBCHANNEL_ID); + (u16 __user *) __LC_SUBCHANNEL_ID); rc |= put_guest(vcpu, inti->io.subchannel_nr, - (u16 *) __LC_SUBCHANNEL_NR); + (u16 __user *) __LC_SUBCHANNEL_NR); rc |= put_guest(vcpu, inti->io.io_int_parm, - (u32 *) __LC_IO_INT_PARM); + (u32 __user *) __LC_IO_INT_PARM); rc |= put_guest(vcpu, inti->io.io_int_word, - (u32 *) __LC_IO_INT_WORD); + (u32 __user *) __LC_IO_INT_WORD); rc |= copy_to_guest(vcpu, __LC_IO_OLD_PSW, &vcpu->arch.sie_block->gpsw, sizeof(psw_t)); rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw, @@ -344,7 +344,7 @@ static int __try_deliver_ckc_interrupt(struct kvm_vcpu *vcpu) return 0; if (!(vcpu->arch.sie_block->gcr[0] & 0x800ul)) return 0; - rc = put_guest(vcpu, 0x1004, (u16 *)__LC_EXT_INT_CODE); + rc = put_guest(vcpu, 0x1004, (u16 __user *)__LC_EXT_INT_CODE); rc |= copy_to_guest(vcpu, __LC_EXT_OLD_PSW, &vcpu->arch.sie_block->gpsw, sizeof(psw_t)); rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw, diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index d64382c1ed6..7db2ad076f3 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -42,7 +42,7 @@ static int handle_set_prefix(struct kvm_vcpu *vcpu) } /* get the value */ - if (get_guest(vcpu, address, (u32 *) operand2)) { + if (get_guest(vcpu, address, (u32 __user *) operand2)) { kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); goto out; } @@ -83,7 +83,7 @@ static int handle_store_prefix(struct kvm_vcpu *vcpu) address = address & 0x7fffe000u; /* get the value */ - if (put_guest(vcpu, address, (u32 *)operand2)) { + if (put_guest(vcpu, address, (u32 __user *)operand2)) { kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); goto out; } @@ -108,7 +108,7 @@ static int handle_store_cpu_address(struct kvm_vcpu *vcpu) goto out; } - rc = put_guest(vcpu, vcpu->vcpu_id, (u16 *)useraddr); + rc = put_guest(vcpu, vcpu->vcpu_id, (u16 __user *)useraddr); if (rc) { kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); goto out; @@ -149,18 +149,18 @@ static int handle_tpi(struct kvm_vcpu *vcpu) * Store the two-word I/O interruption code into the * provided area. */ - put_guest(vcpu, inti->io.subchannel_id, (u16 *) addr); - put_guest(vcpu, inti->io.subchannel_nr, (u16 *) (addr + 2)); - put_guest(vcpu, inti->io.io_int_parm, (u32 *) (addr + 4)); + put_guest(vcpu, inti->io.subchannel_id, (u16 __user *) addr); + put_guest(vcpu, inti->io.subchannel_nr, (u16 __user *) (addr + 2)); + put_guest(vcpu, inti->io.io_int_parm, (u32 __user *) (addr + 4)); } else { /* * Store the three-word I/O interruption code into * the appropriate lowcore area. */ - put_guest(vcpu, inti->io.subchannel_id, (u16 *) __LC_SUBCHANNEL_ID); - put_guest(vcpu, inti->io.subchannel_nr, (u16 *) __LC_SUBCHANNEL_NR); - put_guest(vcpu, inti->io.io_int_parm, (u32 *) __LC_IO_INT_PARM); - put_guest(vcpu, inti->io.io_int_word, (u32 *) __LC_IO_INT_WORD); + put_guest(vcpu, inti->io.subchannel_id, (u16 __user *) __LC_SUBCHANNEL_ID); + put_guest(vcpu, inti->io.subchannel_nr, (u16 __user *) __LC_SUBCHANNEL_NR); + put_guest(vcpu, inti->io.io_int_parm, (u32 __user *) __LC_IO_INT_PARM); + put_guest(vcpu, inti->io.io_int_word, (u32 __user *) __LC_IO_INT_WORD); } kfree(inti); no_interrupt: @@ -353,7 +353,7 @@ static int handle_stidp(struct kvm_vcpu *vcpu) goto out; } - rc = put_guest(vcpu, vcpu->arch.stidp_data, (u64 *)operand2); + rc = put_guest(vcpu, vcpu->arch.stidp_data, (u64 __user *)operand2); if (rc) { kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); goto out; -- cgit v1.2.3-70-g09d2