diff options
| author | Anthony Liguori <aliguori@us.ibm.com> | 2009-08-10 17:07:24 -0500 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-08-24 08:02:55 -0500 |
| commit | 4a1418e07bdcfaa3177739e04707ecaec75d89e1 (patch) | |
| tree | a68b7017b184850330000afa416d4ed419bb736a /qemu-tech.texi | |
| parent | 0953a80f04a9771323931123cbe486e9fd8ffe20 (diff) | |
Unbreak large mem support by removing kqemu
kqemu introduces a number of restrictions on the i386 target. The worst is that
it prevents large memory from working in the default build.
Furthermore, kqemu is fundamentally flawed in a number of ways. It relies on
the TSC as a time source which will not be reliable on a multiple processor
system in userspace. Since most modern processors are multicore, this severely
limits the utility of kqemu.
kvm is a viable alternative for people looking to accelerate qemu and has the
benefit of being supported by the upstream Linux kernel. If someone can
implement work arounds to remove the restrictions introduced by kqemu, I'm
happy to avoid and/or revert this patch.
N.B. kqemu will still function in the 0.11 series but this patch removes it from
the 0.12 series.
Paul, please Ack or Nack this patch.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'qemu-tech.texi')
| -rw-r--r-- | qemu-tech.texi | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/qemu-tech.texi b/qemu-tech.texi index ed2d35bf5e..97d8dea3bc 100644 --- a/qemu-tech.texi +++ b/qemu-tech.texi @@ -116,8 +116,8 @@ QEMU full system emulation features: QEMU uses a full software MMU for maximum portability. @item -QEMU can optionally use an in-kernel accelerator, like kqemu and -kvm. The accelerators execute some of the guest code natively, while +QEMU can optionally use an in-kernel accelerator, like kvm. The accelerators +execute some of the guest code natively, while continuing to emulate the rest of the machine. @item |