linux/arch/i386/kernel
Jeremy Fitzhardinge 24037a8b69 Add nosegneg capability to the vsyscall page notes
Add the "nosegneg" fake capabilty to the vsyscall page notes. This is
used by the runtime linker to select a glibc version which then
disables negative-offset accesses to the thread-local segment via
%gs. These accesses require emulation in Xen (because segments are
truncated to protect the hypervisor address space) and avoiding them
provides a measurable performance boost.

Signed-off-by: Ian Pratt <ian.pratt@xensource.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Acked-by: Zachary Amsden <zach@vmware.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Ulrich Drepper <drepper@redhat.com>
2007-07-18 08:47:42 -07:00
..
acpi Remove some unused variables 2007-07-03 18:27:53 -07:00
cpu HOTPLUG: Adapt thermal throttle to CPU_DYING 2007-07-16 12:05:50 +03:00
.gitignore
alternative.c Revert "[PATCH] x86: __pa and __pa_symbol address space separation" 2007-05-07 08:44:24 -07:00
apic.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
apm.c Freezer: make kernel threads nonfreezable by default 2007-07-17 10:23:02 -07:00
asm-offsets.c [PATCH] i386: map enough initial memory to create lowmem mappings 2007-05-02 19:27:16 +02:00
bootflag.c
cpuid.c Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
crash_dump.c
crash.c move die notifier handling to common code 2007-05-08 11:15:04 -07:00
doublefault.c [PATCH] i386: i386 separate hardware-defined TSS from Linux additions 2007-05-02 19:27:13 +02:00
e820.c Make definitions for struct e820entry and struct e820map consistent 2007-07-12 10:55:54 -07:00
early_printk.c
efi_stub.S
efi.c arch/i386/* fs/* ipc/*: mark variables with uninitialized_var() 2007-07-17 16:23:19 -04:00
entry.S i386: fix regression, endless loop in ptrace singlestep over an int80 2007-07-06 10:23:43 -07:00
head.S x86: initial fixmap support 2007-07-16 09:05:35 -07:00
hpet.c [PATCH] Add suspend/resume for HPET 2007-03-29 10:25:32 -07:00
i386_ksyms.c [PATCH] i386: Convert PDA into the percpu section 2007-05-02 19:27:16 +02:00
i387.c
i8237.c
i8253.c [VOYAGER] clockevents: correct boot cpu is zero assumption 2007-05-01 10:06:42 -05:00
i8259.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
init_task.c
io_apic.c Freezer: make kernel threads nonfreezable by default 2007-07-17 10:23:02 -07:00
ioport.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
irq.c [PATCH] i386: Convert PDA into the percpu section 2007-05-02 19:27:16 +02:00
kprobes.c Kprobes: The ON/OFF knob thru debugfs 2007-05-08 11:15:19 -07:00
ldt.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
legacy_serial.c x86, serial: convert legacy COM ports to platform devices 2007-05-08 11:15:23 -07:00
machine_kexec.c
Makefile i386: move common parts of smp into their own file 2007-05-15 08:54:00 -07:00
mca.c [PATCH] i386: replace kmalloc+memset with kzalloc 2006-12-07 02:14:19 +01:00
microcode.c microcode: fix section mismatch warning 2007-06-01 08:18:30 -07:00
module.c [PATCH] Generic BUG for i386 2006-12-08 08:28:39 -08:00
mpparse.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
msr.c Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
nmi.c i386: speedup touch_nmi_watchdog 2007-07-17 10:23:04 -07:00
numaq.c
paravirt.c Add a sched_clock paravirt_op 2007-07-18 08:47:42 -07:00
pci-dma.c x86: Disable DAC on VIA bridges 2007-06-20 14:27:25 -07:00
pcspeaker.c [PATCH] x86: Unify pcspeaker platform device code between i386/x86-64 2007-02-13 13:26:26 +01:00
process.c make seccomp zerocost in schedule 2007-07-16 09:05:50 -07:00
ptrace.c PTRACE_POKEDATA consolidation 2007-07-17 10:23:03 -07:00
quirks.c Clean up E7520/7320/7525 quirk printk. 2007-07-07 13:53:13 -07:00
reboot_fixups.c GEODE: reboot fixup for geode machines with CS5536 boards 2007-07-06 11:45:11 -07:00
reboot.c Work around Dell E520 BIOS reboot bug 2007-06-01 08:18:28 -07:00
relocate_kernel.S
scx200.c
setup.c paravirt: add a hook for once the allocator is ready 2007-07-18 08:47:41 -07:00
sigframe.h
signal.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
smp.c paravirt: unstatic leave_mm 2007-07-18 08:47:41 -07:00
smpboot.c paravirt: make siblingmap functions visible 2007-07-18 08:47:41 -07:00
smpcommon.c i386: Allow smp_call_function_single() to current cpu 2007-07-16 12:05:50 +03:00
srat.c ACPI: build fix for IBM x440 - CONFIG_X86_SUMMIT 2007-02-02 21:47:33 -05:00
summit.c
sys_i386.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
syscall_table.S signal/timer/event: eventfd wire up x86 arches 2007-05-11 08:29:37 -07:00
sysenter.c [PATCH] i386: In compat mode, the return value here was uninitialized. 2007-05-02 19:27:16 +02:00
time.c [PATCH] i386: pit_latch_buggy has no effect 2007-05-02 19:27:05 +02:00
topology.c Replace remaining references to "driverfs" with "sysfs". 2007-02-17 19:13:42 +01:00
trampoline.S [PATCH] i386: Rename boot_gdt_table to boot_gdt 2007-05-02 19:27:10 +02:00
traps.c Report that kernel is tainted if there was an OOPS 2007-07-17 10:23:02 -07:00
tsc_sync.c [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
tsc.c Add a sched_clock paravirt_op 2007-07-18 08:47:42 -07:00
vm86.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
vmi.c Add a sched_clock paravirt_op 2007-07-18 08:47:42 -07:00
vmiclock.c Add a sched_clock paravirt_op 2007-07-18 08:47:42 -07:00
vmlinux.lds.S all-archs: consolidate .data section definition in asm-generic 2007-05-19 09:11:57 +02:00
vsyscall-int80.S
vsyscall-note.S Add nosegneg capability to the vsyscall page notes 2007-07-18 08:47:42 -07:00
vsyscall-sigreturn.S
vsyscall-sysenter.S
vsyscall.lds.S [PATCH] i386: VDSO_PRELINK warning fix 2007-05-02 19:27:09 +02:00
vsyscall.S