Andre Przywara 27ea98a4c5 KVM: arm/arm64: VGIC/ITS: protect kvm_read_guest() calls with SRCU lock ... commit bf308242ab upstream. kvm_read_guest() will eventually look up in kvm_memslots(), which requires either to hold the kvm->slots_lock or to be inside a kvm->srcu critical section. In contrast to x86 and s390 we don't take the SRCU lock on every guest exit, so we have to do it individually for each kvm_read_guest() call. Provide a wrapper which does that and use that everywhere. Note that ending the SRCU critical section before returning from the kvm_read_guest() wrapper is safe, because the data has been *copied*, so we don't need to rely on valid references to the memslot anymore. Cc: Stable <stable@vger.kernel.org> # 4.8+ Reported-by: Jan Glauber <jan.glauber@caviumnetworks.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com> Acked-by: Christoffer Dall <christoffer.dall@arm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-05-22 18:53:57 +02:00
..
boot	arm64: dts: rockchip: remove vdd_log from rk3399-puma	2018-04-29 11:33:16 +02:00
configs	ARM/arm64: SoC platform updates for v4.14	2017-09-10 20:35:46 -07:00
crypto	crypto: arm64/aes-ce-cipher - move assembler code to .S file	2018-04-12 12:32:21 +02:00
include	KVM: arm/arm64: VGIC/ITS: protect kvm_read_guest() calls with SRCU lock	2018-05-22 18:53:57 +02:00
kernel	arm64: cpufeature: Fix CTR_EL0 field definitions	2018-02-28 10:19:42 +01:00
kvm	arm/arm64: KVM: Add PSCI version selection API	2018-05-01 12:58:27 -07:00
lib	arm64: uaccess: Mask __user pointers for __arch_{clear, copy_*}_user	2018-02-16 20:22:52 +01:00
mm	arm64: Add work around for Arm Cortex-A55 Erratum 1024718	2018-05-16 10:10:25 +02:00
net	bpf, arm64: fix out of bounds access in tail call	2018-03-11 16:23:22 +01:00
xen	arm64: kpti: Fix the interaction between ASID switching and software PAN	2018-02-16 20:22:49 +01:00
Kconfig	arm64: Add work around for Arm Cortex-A55 Erratum 1024718	2018-05-16 10:10:25 +02:00
Kconfig.debug	arm64: relocation testing module	2017-04-04 17:03:32 +01:00
Kconfig.platforms	ARM: arm64: Devicetree updates for v4.14	2017-09-10 20:54:48 -07:00
Makefile	arm64: prevent regressions in compressed kernel image size when upgrading to binutils 2.27	2017-12-20 10:10:29 +01:00