diff options
| author | David S. Miller <davem@davemloft.net> | 2015-09-26 16:08:27 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-09-26 16:08:27 -0700 |
| commit | 4963ed48f2c20196d51a447ee87dc2815584fee4 (patch) | |
| tree | a1902f466dafa00453889a4f1e66b00249ce0529 /arch/x86/Kconfig | |
| parent | 4d54d86546f62c7c4a0fe3b36a64c5e3b98ce1a9 (diff) | |
| parent | 518a7cb6980cd640c7f979d29021ad870f60d7d7 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
net/ipv4/arp.c
The net/ipv4/arp.c conflict was one commit adding a new
local variable while another commit was deleting one.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 7aef2d52daa0..328c8352480c 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1006,7 +1006,7 @@ config X86_THERMAL_VECTOR depends on X86_MCE_INTEL config X86_LEGACY_VM86 - bool "Legacy VM86 support (obsolete)" + bool "Legacy VM86 support" default n depends on X86_32 ---help--- @@ -1018,19 +1018,20 @@ config X86_LEGACY_VM86 available to accelerate real mode DOS programs. However, any recent version of DOSEMU, X, or vbetool should be fully functional even without kernel VM86 support, as they will all - fall back to (pretty well performing) software emulation. + fall back to software emulation. Nevertheless, if you are using + a 16-bit DOS program where 16-bit performance matters, vm86 + mode might be faster than emulation and you might want to + enable this option. - Anything that works on a 64-bit kernel is unlikely to need - this option, as 64-bit kernels don't, and can't, support V8086 - mode. This option is also unrelated to 16-bit protected mode - and is not needed to run most 16-bit programs under Wine. + Note that any app that works on a 64-bit kernel is unlikely to + need this option, as 64-bit kernels don't, and can't, support + V8086 mode. This option is also unrelated to 16-bit protected + mode and is not needed to run most 16-bit programs under Wine. - Enabling this option adds considerable attack surface to the - kernel and slows down system calls and exception handling. + Enabling this option increases the complexity of the kernel + and slows down exception handling a tiny bit. - Unless you use very old userspace or need the last drop of - performance in your real mode DOS games and can't use KVM, - say N here. + If unsure, say N here. config VM86 bool |