diff options
Diffstat (limited to 'arch/s390/kvm/guestdbg.c')
| -rw-r--r-- | arch/s390/kvm/guestdbg.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/arch/s390/kvm/guestdbg.c b/arch/s390/kvm/guestdbg.c index c2e0ddc1356e..80879fc73c90 100644 --- a/arch/s390/kvm/guestdbg.c +++ b/arch/s390/kvm/guestdbg.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* * kvm guest debug support * * Copyright IBM Corp. 2014 * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License (version 2 only) - * as published by the Free Software Foundation. - * * Author(s): David Hildenbrand <dahi@linux.vnet.ibm.com> */ #include <linux/kvm_host.h> @@ -156,7 +153,7 @@ void kvm_s390_patch_guest_per_regs(struct kvm_vcpu *vcpu) if (guestdbg_sstep_enabled(vcpu)) { /* disable timer (clock-comparator) interrupts */ - vcpu->arch.sie_block->gcr[0] &= ~0x800ul; + vcpu->arch.sie_block->gcr[0] &= ~CR0_CLOCK_COMPARATOR_SUBMASK; vcpu->arch.sie_block->gcr[9] |= PER_EVENT_IFETCH; vcpu->arch.sie_block->gcr[10] = 0; vcpu->arch.sie_block->gcr[11] = -1UL; @@ -187,7 +184,7 @@ static int __import_wp_info(struct kvm_vcpu *vcpu, if (wp_info->len < 0 || wp_info->len > MAX_WP_SIZE) return -EINVAL; - wp_info->old_data = kmalloc(bp_data->len, GFP_KERNEL); + wp_info->old_data = kmalloc(bp_data->len, GFP_KERNEL_ACCOUNT); if (!wp_info->old_data) return -ENOMEM; /* try to backup the original value */ @@ -216,8 +213,8 @@ int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu, else if (dbg->arch.nr_hw_bp > MAX_BP_COUNT) return -EINVAL; - bp_data = memdup_user(dbg->arch.hw_bp, - sizeof(*bp_data) * dbg->arch.nr_hw_bp); + bp_data = memdup_array_user(dbg->arch.hw_bp, dbg->arch.nr_hw_bp, + sizeof(*bp_data)); if (IS_ERR(bp_data)) return PTR_ERR(bp_data); @@ -237,7 +234,7 @@ int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu, if (nr_wp > 0) { wp_info = kmalloc_array(nr_wp, sizeof(*wp_info), - GFP_KERNEL); + GFP_KERNEL_ACCOUNT); if (!wp_info) { ret = -ENOMEM; goto error; @@ -246,7 +243,7 @@ int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu, if (nr_bp > 0) { bp_info = kmalloc_array(nr_bp, sizeof(*bp_info), - GFP_KERNEL); + GFP_KERNEL_ACCOUNT); if (!bp_info) { ret = -ENOMEM; goto error; @@ -308,7 +305,7 @@ static inline int in_addr_range(u64 addr, u64 a, u64 b) return (addr >= a) && (addr <= b); else /* "overflowing" interval */ - return (addr <= a) && (addr >= b); + return (addr >= a) || (addr <= b); } #define end_of_range(bp_info) (bp_info->addr + bp_info->len - 1) @@ -352,7 +349,7 @@ static struct kvm_hw_wp_info_arch *any_wp_changed(struct kvm_vcpu *vcpu) if (!wp_info || !wp_info->old_data || wp_info->len <= 0) continue; - temp = kmalloc(wp_info->len, GFP_KERNEL); + temp = kmalloc(wp_info->len, GFP_KERNEL_ACCOUNT); if (!temp) continue; |