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James Hogan f049729c05 MIPS: KVM: Fix preemptable kvm_mips_get_*_asid() calls 
There are a couple of places in KVM fault handling code which implicitly
use smp_processor_id() via kvm_mips_get_kernel_asid() and
kvm_mips_get_user_asid() from preemptable context. This is unsafe as a
preemption could cause the guest kernel ASID to be changed, resulting in
a host TLB entry being written with the wrong ASID.

Fix by disabling preemption around the kvm_mips_get_*_asid() call and
the corresponding kvm_mips_host_tlb_write().

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: Paolo Bonzini <pbonzini@redhat.com>
 		2016-05-10 15:56:51 +02:00
..
alchemy MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
ar7 MIPS: ar7: use gpiochip data pointer 2016-02-19 09:51:43 +01:00
ath25 genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
ath79 MIPS: ath79: Fix the ar913x reference clock rate 2016-04-03 12:32:10 +02:00
bcm47xx FIRMWARE: Broadcom: Fix grammar of warning messages in bcm47xx_sprom.c. 2016-04-03 12:32:09 +02:00
bcm63xx Merge branch 'ib-mfd-regulator-gpio-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into devel 2016-03-09 17:40:37 +07:00
bmips irqchips/bmips: Add bcm6345-l1 interrupt controller 2016-02-08 15:03:42 +01:00
boot MIPS: BMIPS: Fix gisb-arb compatible string for 7435 2016-04-04 15:25:32 +02:00
cavium-octeon MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
cobalt MIPS: Cobalt Don't use module_init in non-modular MTD registration. 2015-06-21 22:14:30 +02:00
configs MIPS: ci20: Enable NAND and UBIFS support in defconfig. 2016-04-03 12:32:09 +02:00
dec MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
emma
…
fw MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
include MIPS: KVM: Fix timer IRQ race when writing CP0_Compare 2016-05-10 15:56:50 +02:00
jazz MIPS: Jazz: Migrate to new 'set-state' interface 2015-09-03 12:07:50 +02:00
jz4740 MIPS: jz4740: Fix surviving instance of irq_to_gpio() 2016-02-29 11:23:49 +01:00
kernel MIPS: traps.c: Verify the ISA for microMIPS RDHWR emulation 2016-04-04 15:25:34 +02:00
kvm MIPS: KVM: Fix preemptable kvm_mips_get_*_asid() calls 2016-05-10 15:56:51 +02:00
lantiq MIPS: Make MIPS_CMDLINE_DTB default 2015-11-11 08:38:37 +01:00
lasat [mips] switch pvc_proc_cleanup() to remove_proc_subtree() 2015-12-23 10:41:38 -05:00
lib MIPS: Cleanup the unused __arch_local_irq_restore() function 2016-01-22 01:58:49 +01:00
loongson32 MIPS: loongsoon32: Migrate to new 'set-state' interface 2015-09-03 12:07:53 +02:00
loongson64 MIPS: hpet: Choose a safe value for the ETIME check 2016-01-22 02:00:49 +01:00
math-emu MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
mm MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
mti-malta MIPS: Fix early CM probing 2016-02-09 17:18:31 +01:00
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 MIPS: Add cases for CPU_I6400 2015-08-26 15:23:03 +02:00
paravirt MIPS: SMP: Don't increment irq_count multiple times for call function IPIs 2015-08-03 09:25:12 +02:00
pci PCI changes for the v4.6 merge window: 2016-03-16 14:45:55 -07:00
pic32 clk: Get rid of HAVE_MACH_CLKDEV 2016-02-25 14:41:20 -08:00
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 serial: Fix ASYNC_* => UPF_* flags misuse 2016-01-28 14:17:42 -08:00
pnx833x mips: nand: make use of mtd_to_nand() where appropriate 2015-12-08 13:03:07 -08:00
power MIPS: Hibernate: flush TLB entries earlier 2015-04-10 15:41:52 +02:00
ralink MIPS: pci: Add MT7620a PCIE driver 2016-01-20 00:39:20 +01:00
rb532 MIPS: rb532: use gpiochip data pointer 2016-02-19 09:51:44 +01:00
sgi-ip22 MIPS: ip22-gio: Remove legacy suspend/resume support 2015-02-20 13:30:55 +01:00
sgi-ip27 MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
sgi-ip32 MIPS: IP32: Fix build errors in reset code in DS1685 platform hook. 2015-05-13 00:01:41 +02:00
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 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
vdso Fix ld-version.sh to handle large 3rd version part 2016-01-04 10:22:52 +01:00
vr41xx MIPS/IRQCHIP: Move irq_chip from arch/mips to drivers/irqchip. 2015-06-21 21:52:50 +02:00
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: Add support for PIC32MZDA platform 2016-01-24 02:53:28 +01:00
Kconfig The clk changes for this release cycle are mostly dominated by 2016-03-23 06:06:45 -07:00
Kconfig.debug MIPS: CPS: Early debug using an ns16550-compatible UART 2015-11-11 08:34:25 +01:00
Makefile MIPS: Loongson-3: Improve -march option and move it to Platform 2016-01-22 01:59:18 +01:00