search for: guestsrc

...+ if (guestdest + n < guestdest) + return -EFAULT; + + guestdest += origin; + + return copy_to_user((void __user *) guestdest, from, n); +slowpath: + return __copy_to_guest_slow(vcpu, guestdest, from, n); +} + +static inline int __copy_from_guest_slow(struct kvm_vcpu *vcpu, void *to, + u64 guestsrc, unsigned long n) +{ + int rc; + unsigned long i; + u8 *data = to; + + for (i = 0; i < n; i++) { + rc = get_guest_u8(vcpu, guestsrc++, data++); + if (rc < 0) + return rc; + } + return 0; +} + +static inline int copy_from_guest(struct kvm_vcpu *vcpu, void *to, + u64 guestsrc, unsigned...

...+ if (guestdest + n < guestdest) + return -EFAULT; + + guestdest += origin; + + return copy_to_user((void __user *) guestdest, from, n); +slowpath: + return __copy_to_guest_slow(vcpu, guestdest, from, n); +} + +static inline int __copy_from_guest_slow(struct kvm_vcpu *vcpu, void *to, + u64 guestsrc, unsigned long n) +{ + int rc; + unsigned long i; + u8 *data = to; + + for (i = 0; i < n; i++) { + rc = get_guest_u8(vcpu, guestsrc++, data++); + if (rc < 0) + return rc; + } + return 0; +} + +static inline int copy_from_guest(struct kvm_vcpu *vcpu, void *to, + u64 guestsrc, unsigned...

This patch series introduces a backend for kvm to run on IBM System z machines that uses the mainframe's sie virtualization capability. This work runs 64bit guests on z800/z890/z900/z990/z9/z10 class machines with a 64bit linux host. Userspace will follow once we're done brushing it over. The patch queue consists of the following patches, which can be applied in sequence on top of kvm.git

This patch series introduces a backend for kvm to run on IBM System z machines that uses the mainframe's sie virtualization capability. This work runs 64bit guests on z800/z890/z900/z990/z9/z10 class machines with a 64bit linux host. Userspace will follow once we're done brushing it over. The patch queue consists of the following patches, which can be applied in sequence on top of kvm.git