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-options.hx | |
| 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-options.hx')
| -rw-r--r-- | qemu-options.hx | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 38989f18b..03abb5c8d 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -1414,25 +1414,6 @@ STEXI Set the filename for the BIOS. ETEXI -#ifdef CONFIG_KQEMU -DEF("kernel-kqemu", 0, QEMU_OPTION_kernel_kqemu, \ - "-kernel-kqemu enable KQEMU full virtualization (default is user mode only)\n") -#endif -STEXI -@item -kernel-kqemu -Enable KQEMU full virtualization (default is user mode only). -ETEXI - -#ifdef CONFIG_KQEMU -DEF("enable-kqemu", 0, QEMU_OPTION_enable_kqemu, \ - "-enable-kqemu enable KQEMU kernel module usage\n") -#endif -STEXI -@item -enable-kqemu -Enable KQEMU kernel module usage. KQEMU options are only available if -KQEMU support is enabled when compiling. -ETEXI - #ifdef CONFIG_KVM DEF("enable-kvm", 0, QEMU_OPTION_enable_kvm, \ "-enable-kvm enable KVM full virtualization support\n") |