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linux/arch/powerpc/kernel
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Hollis Blanchard 49dd2c4928 KVM: powerpc: Map guest userspace with TID=0 mappings 
When we use TID=N userspace mappings, we must ensure that kernel mappings have
been destroyed when entering userspace. Using TID=1/TID=0 for kernel/user
mappings and running userspace with PID=0 means that userspace can't access the
kernel mappings, but the kernel can directly access userspace.

The net is that we don't need to flush the TLB on privilege switches, but we do
on guest context switches (which are far more infrequent). Guest boot time
performance improvement: about 30%.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-10-15 10:15:16 +02:00
..
vdso32 powerpc: Fixup lwsync at runtime 2008-07-03 16:58:10 +10:00
vdso64 powerpc: Fixup lwsync at runtime 2008-07-03 16:58:10 +10:00
align.c powerpc: Fix uninitialised variable in VSX alignment code 2008-09-03 20:53:14 +10:00
asm-offsets.c KVM: powerpc: Map guest userspace with TID=0 mappings 2008-10-15 10:15:16 +02:00
audit.c [PATCH] audit signal recipients 2007-05-11 05:38:25 -04:00
btext.c [POWERPC] Remove duplicate #include 2008-05-09 20:22:58 +10:00
clock.c [POWERPC] clk.h interface for platforms 2007-10-03 09:11:56 +10:00
compat_audit.c [PATCH] add SIGNAL syscall class (v3) 2007-05-11 05:38:25 -04:00
cpu_setup_6xx.S [POWERPC] ppc32: Fix errata for 603 CPUs 2008-04-21 15:00:32 -05:00
cpu_setup_44x.S powerpc: Remove use of CONFIG_PPC_MERGE 2008-08-04 13:18:17 +10:00
cpu_setup_pa6t.S [POWERPC] pasemi: Enable one more hid bit 2007-04-24 21:31:49 +10:00
cpu_setup_ppc970.S [POWERPC] powerpc: Enable DEEPNAP power savings mode on 970MP 2006-10-16 16:32:25 +10:00
cputable.c powerpc: Fix boot problem due to AT_BASE_PLATFORM change 2008-07-26 09:02:43 +10:00
crash.c powerpc: Increase CRASH_HANDLER_MAX 2008-06-30 22:31:00 +10:00
crash_dump.c powerpc: Fix /dev/oldmem interface for kdump 2008-08-20 09:50:21 +10:00
dma_64.c powerpc: move device_to_mask() to dma-mapping.h 2008-07-09 16:30:44 +10:00
entry_32.S powerpc: Add TIF_NOTIFY_RESUME support for tracehook 2008-07-28 16:30:50 +10:00
entry_64.S powerpc: Add TIF_NOTIFY_RESUME support for tracehook 2008-07-28 16:30:50 +10:00
firmware.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
fpu.S powerpc: Add VSX context save/restore, ptrace and signal support 2008-07-01 11:28:50 +10:00
ftrace.c ftrace: store mcount address in rec->ip 2008-06-23 22:10:56 +02:00
head_8xx.S [POWERPC] 8xx: fix swap 2008-03-07 08:42:28 -06:00
head_32.S powerpc: Fix TLB invalidation on boot on 32-bit 2008-08-18 14:22:34 +10:00
head_40x.S [POWERPC] 40x/Book-E: Save/restore volatile exception registers 2008-06-02 14:56:35 -05:00
head_44x.S powerpc: rework 4xx PTE access and TLB miss 2008-07-09 13:36:17 -04:00
head_64.S powerpc: Don't spin on sync instruction at boot time 2008-07-15 12:29:28 +10:00
head_booke.h powerpc: rework 4xx PTE access and TLB miss 2008-07-09 13:36:17 -04:00
head_fsl_booke.S powerpc/fsl: Minor TLBSYNC cleanup for FSL Book-E 2008-07-16 17:57:52 -05:00
ibmebus.c powerpc/ibmebus: Restore "name" sysfs attribute on ibmebus devices 2008-08-20 09:50:21 +10:00
idle.c powerpc: Fix failure to shutdown with CPU hotplug 2008-09-30 13:25:06 +10:00
idle_6xx.S powerpc: Fix for getting CPU number in power_save_ppc32_restore() 2008-09-03 20:53:47 +10:00
idle_e500.S powerpc: Fix for getting CPU number in power_save_ppc32_restore() 2008-09-03 20:53:47 +10:00
idle_power4.S [POWERPC] powermac: Support G5 CPU hotplug 2007-05-07 20:31:13 +10:00
init_task.c [PATCH] take init_files to fs/file.c 2008-05-16 17:22:20 -04:00
io.c ftrace: support for PowerPC 2008-05-23 22:43:11 +02:00
iomap.c [POWERPC] Add 64-bit resources support to pci_iomap 2007-09-20 07:36:52 -05:00
iommu.c powerpc/pseries: iommu enablement for CMO 2008-07-25 15:44:43 +10:00
irq.c powerpc: Remove use of CONFIG_PPC_MERGE 2008-08-04 13:18:17 +10:00
isa-bridge.c [POWERPC] Remove leftover printk in isa-bridge.c 2008-05-09 20:22:59 +10:00
kgdb.c kgdb, x86, arm, mips, powerpc: ignore user space single stepping 2008-09-26 10:36:41 -05:00
kprobes.c kprobes: improve kretprobe scalability with hashed locking 2008-07-25 10:53:30 -07:00
l2cr_6xx.S Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
legacy_serial.c powerpc/powermac: Fixup default serial port device for pmac_zilog 2008-07-28 16:30:53 +10:00
lparcfg.c powerpc: Add CMO enabled flag and paging space data to lparcfg 2008-08-18 14:22:35 +10:00
machine_kexec.c kexec jump 2008-07-26 12:00:04 -07:00
machine_kexec_32.c kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE 2008-08-15 08:35:42 -07:00
machine_kexec_64.c Merge commit 'origin/master' 2008-07-16 11:07:59 +10:00
Makefile powerpc: Work around gcc's -fno-omit-frame-pointer bug 2008-09-03 20:53:34 +10:00
misc.S powerpc: Add cputable entry for POWER7 2008-06-30 22:31:11 +10:00
misc_32.S powerpc/kexec: Fix up KEXEC_CONTROL_CODE_SIZE missed during conversion 2008-08-18 14:22:35 +10:00
misc_64.S powerpc: fix giveup_vsx to save registers correctly 2008-07-15 12:29:23 +10:00
module.c powerpc: Remove dead module_find_bug code 2008-08-18 14:22:35 +10:00
module_32.c powerpc: Move common module code into its own file 2008-07-01 11:28:05 +10:00
module_64.c Fix compile failure with non modular builds 2008-09-17 09:14:42 -07:00
msi.c [POWERPC] Fix sparse warnings in arch/powerpc/kernel 2008-05-14 22:31:59 +10:00
nvram_64.c [POWERPC] pseries: Eliminate global error_log_cnt variable 2007-08-17 11:01:52 +10:00
of_device.c [POWERPC] Move of_device_get_modalias to drivers/of 2008-05-16 23:22:28 +10:00
of_platform.c powerpc: Add missing reference to coherent_dma_mask 2008-07-08 21:06:35 -07:00
paca.c [POWERPC] Raise the upper limit of NR_CPUS and move the pacas into the BSS 2008-04-24 20:58:04 +10:00
pci-common.c powerpc/pci: Don't keep ISA memory hole resources in the tree 2008-08-11 10:09:56 +10:00
pci_32.c [POWERPC] Remove update_bridge_resource 2008-01-23 19:32:30 -06:00
pci_64.c [POWERPC] Use dev_set_name in pci_64.c 2008-06-09 11:32:40 +10:00
pci_dn.c [POWERPC] iSeries: eliminate pci_dn bussubno 2008-01-17 14:57:05 +11:00
pmc.c [POWERPC] Made FSL Book-E PMC support more generic 2008-02-05 23:34:14 -06:00
ppc32.h powerpc: Add VSX context save/restore, ptrace and signal support 2008-07-01 11:28:50 +10:00
ppc_ksyms.c Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-build 2008-07-15 15:44:51 +10:00
proc_ppc64.c powerpc: use non-racy method for proc entries creation 2008-04-29 08:06:22 -07:00
process.c powerpc: Remove use of CONFIG_PPC_MERGE 2008-08-04 13:18:17 +10:00
prom.c powerpc: Add VSX CPU feature 2008-07-01 11:28:47 +10:00
prom_init.c powerpc: kill useless SMT code in prom_hold_cpus 2008-07-28 16:30:48 +10:00
prom_init_check.sh [POWERPC] Fix -Os kernel builds with newer gcc versions 2008-06-16 15:00:54 +10:00
prom_parse.c powerpc: Fix OF parsing of 64 bits PCI addresses 2008-07-22 10:39:34 +10:00
ptrace.c powerpc: Don't use the wrong thread_struct for ptrace get/set VSX regs 2008-07-30 15:26:54 +10:00
ptrace32.c powerpc: Correctly hookup PTRACE_GET/SETVSRREGS for 32 bit processes 2008-07-30 15:26:54 +10:00
rtas-proc.c [POWERPC] Fix sparse warnings in arch/powerpc/kernel 2008-05-14 22:31:59 +10:00
rtas-rtc.c
rtas.c powerpc: Zero fill the return values of rtas argument buffer 2008-08-11 10:09:56 +10:00
rtas_flash.c SL*B: drop kmem cache argument from constructor 2008-07-26 12:00:07 -07:00
rtas_pci.c [POWERPC] Fix sparse warnings in arch/powerpc/kernel 2008-05-14 22:31:59 +10:00
setup-common.c powerpc: Update cpu_sibling_maps dynamically 2008-07-28 16:30:49 +10:00
setup.h
setup_32.c kgdb, powerpc: arch specific powerpc kgdb support 2008-07-23 11:30:15 -05:00
setup_64.c powerpc: Update cpu_sibling_maps dynamically 2008-07-28 16:30:49 +10:00
signal.c powerpc: Add TIF_NOTIFY_RESUME support for tracehook 2008-07-28 16:30:50 +10:00
signal.h powerpc: Clean up copy_to/from_user for vsx and fpr 2008-07-03 16:58:11 +10:00
signal_32.c powerpc: fix giveup_vsx to save registers correctly 2008-07-15 12:29:23 +10:00
signal_64.c powerpc: fix giveup_vsx to save registers correctly 2008-07-15 12:29:23 +10:00
smp-tbsync.c [POWERPC] Replace kmalloc+memset with kzalloc 2006-12-04 20:42:09 +11:00
smp.c kernel/cpu.c: create a CPU_STARTING cpu_chain notifier 2008-09-08 19:25:24 +02:00
softemu8xx.c Remove asm/a.out.h files for all architectures without a.out support. 2008-09-06 19:30:24 +01:00
stacktrace.c powerpc: Removed duplicated include in stacktrace.c 2008-07-28 16:30:47 +10:00
suspend.c PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
swsusp.c powerpc: fixup hard_irq_disable semantics 2007-05-11 08:29:34 -07:00
swsusp_32.S [POWERPC] Make altivec code in swsusp_32.S depend on CONFIG_ALTIVEC 2007-11-08 14:15:34 +11:00
swsusp_64.c [POWERPC] powermac: Suspend to disk on G5 2007-05-07 20:31:14 +10:00
swsusp_asm64.S [POWERPC] powermac: Suspend to disk on G5 2007-05-07 20:31:14 +10:00
sys_ppc32.c powerpc: Use generic compat_sys_old_readdir 2008-08-18 14:22:35 +10:00
syscalls.c powerpc/mm: Add Strong Access Ordering support 2008-07-09 16:30:45 +10:00
sysfs.c powerpc: Show processor cache information in sysfs 2008-07-28 16:30:52 +10:00
systbl.S [POWERPC] Align the sys_call_table 2007-10-11 14:36:47 +10:00
systbl_chk.c [POWERPC] Fix a couple of copyright symbols 2008-01-25 22:52:50 +11:00
systbl_chk.sh [POWERPC] Fix a couple of copyright symbols 2008-01-25 22:52:50 +11:00
tau_6xx.c on_each_cpu(): kill unused 'retry' parameter 2008-06-26 11:24:38 +02:00
time.c Merge commit 'origin/master' 2008-07-16 11:07:59 +10:00
traps.c Remove asm/a.out.h files for all architectures without a.out support. 2008-09-06 19:30:24 +01:00
udbg.c [POWERPC] Mark udbg console as CON_ANYTIME, ie. callable early in boot 2008-04-24 21:08:11 +10:00
udbg_16550.c [POWERPC] 4xx: Add early udbg support for 40x processors 2007-12-23 13:13:03 -06:00
vdso.c powerpc: Remove use of CONFIG_PPC_MERGE 2008-08-04 13:18:17 +10:00
vecemu.c
vector.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
vio.c powerpc: Fix vio_bus_probe oops on probe error 2008-08-20 09:50:22 +10:00
vmlinux.lds.S powerpc: Make sure _etext is after all kernel text 2008-09-03 20:53:26 +10:00