- allow the super user to mmap() the PCI IO area corresponding to ofb at offset
0xf2000000 - needed by some XFree drivers ( approved by Bill Studenmund )
- add a hack to allow mmap()ing offset 0xa0000 - 0xbffff if not covered by the
regular framebuffer mapping at offset 0 ( disabled by default, use options
OFB_FAKE_VGA_FB ) - this allows buggy XFree drivers which expect the VGA
framebuffer at this address to work.
the ressources (this can lead to a dom0 kernel crash when destroying a domain
with active I/O going). For this, add a refcount to struct xbdback_instance,
and defer CMSG_BLKIF_BE_DISCONNECT reply until refcount is back to 0 (which
means all queued buffers have completed).
Based on patch sent by Jed Davis on port-xen.
start up without unlimit.
- Bump max data size from 2G to 3G. The actual space we are allowed to allocate
is somewhere between 2G and 3G, so trying to allocate above that will fail.
- Bump max stack size from 32M to 64M.
Approved by fvdl
for native_sigset13_to_sigset, sigset13_t, and sigvec.
The includes in sparc's machdep.c is conditional on COMPAT_13, as is
the use of native_sigset13_to_sigset.
was developed as part of Google's Summer of Code 2005 program. This
change adds the kernel code, the mount_tmpfs utility, a regression test
suite and does all other related changes to integrate these.
The file-system is still *experimental*. Therefore, it is disabled by
default in all kernels. However, as typically done, a commented-out
entry is added in them to ease its setup.
Note that I haven't commited the required mountd(8) changes to be able
to export tmpfs file-systems because NFS support is still very unstable
and because, before enabling it, I'd like to do some other changes.
OK'ed by my project mentor, William Studenmund (wrstuden@).
instead to always trying PG_RW and falling back to PG_RO if this fails.
Use uvm_map_checkprot() in IOCTL_PRIVCMD_MMAP and IOCTL_PRIVCMD_MMAP_BATCH
to compute the appropriate vm_prot_t for pmap_remap_pages().
Thanks to Jed Davis for pointing out uvm_map_checkprot().
In pmap_remap_pages() new mappings are created (PG_RW|PG_M). When saving
a domain, the hypervisor will refuse to map the foreing pages RW.
As a temporary measure, retry the mapping read-only if PG_RW fails, so that
domain save will work. Also fix the PTP's wire_count if the MMU update
fails (prevent a kernel panic).
