diff options
Diffstat (limited to 'target/i386/kvm/xen-emu.c')
| -rw-r--r-- | target/i386/kvm/xen-emu.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/target/i386/kvm/xen-emu.c b/target/i386/kvm/xen-emu.c index d49b6117f1..3b46cab1da 100644 --- a/target/i386/kvm/xen-emu.c +++ b/target/i386/kvm/xen-emu.c @@ -1207,7 +1207,21 @@ static bool kvm_xen_hcall_gnttab_op(struct kvm_xen_exit *exit, X86CPU *cpu, } break; } - case GNTTABOP_query_size: + case GNTTABOP_query_size: { + struct gnttab_query_size size; + + qemu_build_assert(sizeof(size) == 16); + if (kvm_copy_from_gva(cs, arg, &size, sizeof(size))) { + err = -EFAULT; + break; + } + + err = xen_gnttab_query_size_op(&size); + if (!err && kvm_copy_to_gva(cs, arg, &size, sizeof(size))) { + err = -EFAULT; + } + break; + } case GNTTABOP_setup_table: case GNTTABOP_copy: case GNTTABOP_map_grant_ref: |