Author: cem Date: Wed May 20 17:27:54 2020 New Revision: 361284 URL: https://svnweb.freebsd.org/changeset/base/361284
Log: vmm(4): Add 12 user ABI compat after r349948 Reported by: kp Reviewed by: jhb, kp Tested by: kp Differential Revision: https://reviews.freebsd.org/D24929 Modified: head/sys/amd64/include/vmm_dev.h head/sys/amd64/vmm/vmm_dev.c Modified: head/sys/amd64/include/vmm_dev.h ============================================================================== --- head/sys/amd64/include/vmm_dev.h Wed May 20 17:27:22 2020 (r361283) +++ head/sys/amd64/include/vmm_dev.h Wed May 20 17:27:54 2020 (r361284) @@ -56,6 +56,13 @@ struct vm_memseg { char name[VM_MAX_SUFFIXLEN + 1]; }; +struct vm_memseg_fbsd12 { + int segid; + size_t len; + char name[64]; +}; +_Static_assert(sizeof(struct vm_memseg_fbsd12) == 80, "COMPAT_FREEBSD12 ABI"); + struct vm_register { int cpuid; int regnum; /* enum vm_reg_name */ @@ -338,8 +345,12 @@ enum { _IOW('v', IOCNUM_SUSPEND, struct vm_suspend) #define VM_REINIT \ _IO('v', IOCNUM_REINIT) +#define VM_ALLOC_MEMSEG_FBSD12 \ + _IOW('v', IOCNUM_ALLOC_MEMSEG, struct vm_memseg_fbsd12) #define VM_ALLOC_MEMSEG \ _IOW('v', IOCNUM_ALLOC_MEMSEG, struct vm_memseg) +#define VM_GET_MEMSEG_FBSD12 \ + _IOWR('v', IOCNUM_GET_MEMSEG, struct vm_memseg_fbsd12) #define VM_GET_MEMSEG \ _IOWR('v', IOCNUM_GET_MEMSEG, struct vm_memseg) #define VM_MMAP_MEMSEG \ Modified: head/sys/amd64/vmm/vmm_dev.c ============================================================================== --- head/sys/amd64/vmm/vmm_dev.c Wed May 20 17:27:22 2020 (r361283) +++ head/sys/amd64/vmm/vmm_dev.c Wed May 20 17:27:54 2020 (r361284) @@ -252,7 +252,7 @@ vmmdev_rw(struct cdev *cdev, struct uio *uio, int flag CTASSERT(sizeof(((struct vm_memseg *)0)->name) >= VM_MAX_SUFFIXLEN + 1); static int -get_memseg(struct vmmdev_softc *sc, struct vm_memseg *mseg) +get_memseg(struct vmmdev_softc *sc, struct vm_memseg *mseg, size_t len) { struct devmem_softc *dsc; int error; @@ -269,17 +269,16 @@ get_memseg(struct vmmdev_softc *sc, struct vm_memseg * } KASSERT(dsc != NULL, ("%s: devmem segment %d not found", __func__, mseg->segid)); - error = copystr(dsc->name, mseg->name, sizeof(mseg->name), - NULL); + error = copystr(dsc->name, mseg->name, len, NULL); } else { - bzero(mseg->name, sizeof(mseg->name)); + bzero(mseg->name, len); } return (error); } static int -alloc_memseg(struct vmmdev_softc *sc, struct vm_memseg *mseg) +alloc_memseg(struct vmmdev_softc *sc, struct vm_memseg *mseg, size_t len) { char *name; int error; @@ -295,8 +294,8 @@ alloc_memseg(struct vmmdev_softc *sc, struct vm_memseg */ if (VM_MEMSEG_NAME(mseg)) { sysmem = false; - name = malloc(sizeof(mseg->name), M_VMMDEV, M_WAITOK); - error = copystr(mseg->name, name, sizeof(mseg->name), NULL); + name = malloc(len, M_VMMDEV, M_WAITOK); + error = copystr(mseg->name, name, len, NULL); if (error) goto done; } @@ -438,6 +437,9 @@ vmmdev_ioctl(struct cdev *cdev, u_long cmd, caddr_t da case VM_MAP_PPTDEV_MMIO: case VM_BIND_PPTDEV: case VM_UNBIND_PPTDEV: +#ifdef COMPAT_FREEBSD12 + case VM_ALLOC_MEMSEG_FBSD12: +#endif case VM_ALLOC_MEMSEG: case VM_MMAP_MEMSEG: case VM_REINIT: @@ -451,6 +453,9 @@ vmmdev_ioctl(struct cdev *cdev, u_long cmd, caddr_t da state_changed = 2; break; +#ifdef COMPAT_FREEBSD12 + case VM_GET_MEMSEG_FBSD12: +#endif case VM_GET_MEMSEG: case VM_MMAP_GETNEXT: /* @@ -633,11 +638,25 @@ vmmdev_ioctl(struct cdev *cdev, u_long cmd, caddr_t da error = vm_mmap_memseg(sc->vm, mm->gpa, mm->segid, mm->segoff, mm->len, mm->prot, mm->flags); break; +#ifdef COMPAT_FREEBSD12 + case VM_ALLOC_MEMSEG_FBSD12: + error = alloc_memseg(sc, (struct vm_memseg *)data, + sizeof(((struct vm_memseg_fbsd12 *)0)->name)); + break; +#endif case VM_ALLOC_MEMSEG: - error = alloc_memseg(sc, (struct vm_memseg *)data); + error = alloc_memseg(sc, (struct vm_memseg *)data, + sizeof(((struct vm_memseg *)0)->name)); break; +#ifdef COMPAT_FREEBSD12 + case VM_GET_MEMSEG_FBSD12: + error = get_memseg(sc, (struct vm_memseg *)data, + sizeof(((struct vm_memseg_fbsd12 *)0)->name)); + break; +#endif case VM_GET_MEMSEG: - error = get_memseg(sc, (struct vm_memseg *)data); + error = get_memseg(sc, (struct vm_memseg *)data, + sizeof(((struct vm_memseg *)0)->name)); break; case VM_GET_REGISTER: vmreg = (struct vm_register *)data; _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
