diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index eb65b9c5ea40..908ea5464a51 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2251,22 +2251,24 @@ static int __direct_map(struct kvm_vcpu *vcpu, gpa_t v, int write, return pt_write; } -static void kvm_send_hwpoison_signal(struct kvm *kvm, gfn_t gfn) +static void kvm_send_hwpoison_signal(unsigned long address, struct task_struct *tsk) { - char buf[1]; - void __user *hva; - int r; + siginfo_t info; + + info.si_signo = SIGBUS; + info.si_errno = 0; + info.si_code = BUS_MCEERR_AR; + info.si_addr = (void __user *)address; + info.si_addr_lsb = PAGE_SHIFT; - /* Touch the page, so send SIGBUS */ - hva = (void __user *)gfn_to_hva(kvm, gfn); - r = copy_from_user(buf, hva, 1); + send_sig_info(SIGBUS, &info, tsk); } static int kvm_handle_bad_page(struct kvm *kvm, gfn_t gfn, pfn_t pfn) { kvm_release_pfn_clean(pfn); if (is_hwpoison_pfn(pfn)) { - kvm_send_hwpoison_signal(kvm, gfn); + kvm_send_hwpoison_signal(gfn_to_hva(kvm, gfn), current); return 0; } else if (is_fault_pfn(pfn)) return -EFAULT; |