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linux/arch/mips
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James Hogan d450527ad0 KVM: MIPS: Drop other CPU ASIDs on guest MMU changes 
commit 91e4f1b607 upstream.

When a guest TLB entry is replaced by TLBWI or TLBWR, we only invalidate
TLB entries on the local CPU. This doesn't work correctly on an SMP host
when the guest is migrated to a different physical CPU, as it could pick
up stale TLB mappings from the last time the vCPU ran on that physical
CPU.

Therefore invalidate both user and kernel host ASIDs on other CPUs,
which will cause new ASIDs to be generated when it next runs on those
CPUs.

We're careful only to do this if the TLB entry was already valid, and
only for the kernel ASID where the virtual address it mapped is outside
of the guest user address range.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-16 17:36:14 +02:00
..
alchemy pcmcia: db1xxx_ss: fix last irq_to_gpio user 2016-04-20 15:42:09 +09:00
ar7 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-09-03 16:55:55 -07:00
ath25 genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
ath79 MIPS: ath79: make bootconsole wait for both THRE and TEMT 2016-06-07 18:14:31 -07:00
bcm47xx Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-11-15 09:10:53 -08:00
bcm63xx Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-11-15 09:10:53 -08:00
bmips MIPS: Make MIPS_CMDLINE_DTB default 2015-11-11 08:38:37 +01:00
boot MIPS: ath79: Fix the size of the MISC INTC registers in ar9132.dtsi 2015-11-20 12:14:27 +01:00
cavium-octeon Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-11-15 09:10:53 -08:00
cobalt
configs Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-11-15 09:10:53 -08:00
dec
emma
fw
include MIPS: uprobes: remove incorrect set_orig_insn 2016-10-07 15:23:42 +02:00
jazz MIPS: Jazz: Migrate to new 'set-state' interface 2015-09-03 12:07:50 +02:00
jz4740 MIPS: JZ4740: Remove unused linux/leds_pwm.h include 2015-10-26 09:49:44 +01:00
kernel MIPS: uprobes: fix use of uninitialised variable 2016-10-07 15:23:43 +02:00
kvm KVM: MIPS: Drop other CPU ASIDs on guest MMU changes 2016-10-16 17:36:14 +02:00
lantiq MIPS: Make MIPS_CMDLINE_DTB default 2015-11-11 08:38:37 +01:00
lasat MIPS: Lasat: Move from deprecated __initcall to arch_initcall. 2015-09-03 12:07:49 +02:00
lib MIPS: lib: Mark intrinsics notrace 2016-06-07 18:14:32 -07:00
loongson32 MIPS: loongsoon32: Migrate to new 'set-state' interface 2015-09-03 12:07:53 +02:00
loongson64 MIPS: hpet: Increase HPET_MIN_PROG_DELTA and decrease HPET_MIN_CYCLES 2016-08-20 18:09:27 +02:00
math-emu MIPS: math-emu: Fix jalr emulation when rd == $0 2016-06-07 18:14:30 -07:00
mm MIPS: mm: Fix definition of R6 cache instruction 2016-08-20 18:09:26 +02:00
mti-malta MIPS: Malta: Fix IOCU disable switch read for MIPS64 2016-10-07 15:23:43 +02:00
mti-sead3 LED/MIPS: Move SEAD3 LED driver to where it belongs. 2015-11-03 08:59:20 +01:00
net net: filter: make JITs zero A for SKF_AD_ALU_XOR_X 2016-01-06 00:43:52 -05:00
netlogic MIPS: Make MIPS_CMDLINE_DTB default 2015-11-11 08:38:37 +01:00
oprofile
paravirt
pci MIPS: Fix build error due to unused variables. 2015-12-22 15:21:18 +01:00
pistachio Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-11-15 09:10:53 -08:00
pmcs-msp71xx MIPS: Fix build error due to unused variables. 2015-12-22 15:21:18 +01:00
pnx833x
power
ralink Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-11-15 09:10:53 -08:00
rb532 MIPS: Remove all the uses of custom gpio.h 2015-09-03 12:08:02 +02:00
sgi-ip22
sgi-ip27 MIPS: IP27: Migrate to new 'set-state' interface 2015-09-03 12:07:54 +02:00
sgi-ip32
sibyte MIPS: Sibyte: Move bus watcher from deprecated __initcall to device_initcall 2015-09-03 12:07:49 +02:00
sni MIPS: Fix build error due to unused variables. 2015-12-22 15:21:18 +01:00
txx9 spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
vdso MIPS: VDSO: Build with `-fno-strict-aliasing' 2016-06-07 18:14:32 -07:00
vr41xx
xilfpga Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-11-15 09:10:53 -08:00
Kbuild MIPS: Initial implementation of a VDSO 2015-11-11 08:36:36 +01:00
Kbuild.platforms MIPS: xilfpga: Add mipsfpga platform code 2015-11-11 08:38:44 +01:00
Kconfig MIPS: Fix build error when SMP is used without GIC 2016-03-16 08:43:01 -07:00
Kconfig.debug MIPS: Remove compact branch policy Kconfig entries 2016-09-30 10:18:39 +02:00
Makefile MIPS: Remove compact branch policy Kconfig entries 2016-09-30 10:18:39 +02:00