Marc Zyngier ef3e40a7ea KVM: arm64: Save the host's PtrAuth keys in non-preemptible context ... When using the PtrAuth feature in a guest, we need to save the host's keys before allowing the guest to program them. For that, we dump them in a per-CPU data structure (the so called host context). But both call sites that do this are in preemptible context, which may end up in disaster should the vcpu thread get preempted before reentering the guest. Instead, save the keys eagerly on each vcpu_load(). This has an increased overhead, but is at least safe. Cc: stable@vger.kernel.org Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>		2020-06-09 10:44:40 +01:00
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hyp	KVM: arm64: vgic-v3: Take cpu_if pointer directly instead of vcpu	2020-05-28 11:57:10 +01:00
vgic	KVM: arm64: vgic-v3: Take cpu_if pointer directly instead of vcpu	2020-05-28 11:57:10 +01:00
Kconfig	KVM: arm64: Change CONFIG_KVM to a menuconfig entry	2020-05-16 15:04:18 +01:00
Makefile	KVM: arm64: Clean up kvm makefiles	2020-05-16 15:04:18 +01:00
aarch32.c	KVM: arm64: Move virt/kvm/arm to arch/arm64	2020-05-16 15:03:59 +01:00
arch_timer.c	KVM: arm64: Simplify __kvm_timer_set_cntvoff implementation	2020-05-16 15:04:18 +01:00
arm.c	KVM: arm64: Save the host's PtrAuth keys in non-preemptible context	2020-06-09 10:44:40 +01:00
debug.c	KVM: arm64: Write arch.mdcr_el2 changes since last vcpu_load on VHE	2020-01-22 18:38:04 +00:00
fpsimd.c	KVM: Remove unnecessary asm/kvm_host.h includes	2020-03-16 17:57:34 +01:00
guest.c	KVM: Fix spelling in code comments	2020-05-16 15:05:01 +01:00
handle_exit.c	KVM: arm64: Save the host's PtrAuth keys in non-preemptible context	2020-06-09 10:44:40 +01:00
hyp-init.S	arm64: use mov_q instead of literal ldr	2020-03-24 11:48:24 +00:00
hyp.S	arm64: kvm: Annotate assembly using modern annoations	2020-03-09 17:35:29 +00:00
hypercalls.c	KVM: arm64: Move virt/kvm/arm to arch/arm64	2020-05-16 15:03:59 +01:00
inject_fault.c	KVM: arm64: Parametrize exception entry with a target EL	2020-05-28 13:16:55 +01:00
irq.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422	2019-06-05 17:37:15 +02:00
mmio.c	KVM: Fix spelling in code comments	2020-05-16 15:05:01 +01:00
mmu.c	KVM: arm64: Remove obsolete kvm_virt_to_phys abstraction	2020-05-25 16:16:27 +01:00
perf.c	KVM: arm64: Move virt/kvm/arm to arch/arm64	2020-05-16 15:03:59 +01:00
pmu-emul.c	KVM: arm64: Move virt/kvm/arm to arch/arm64	2020-05-16 15:03:59 +01:00
pmu.c	KVM: arm64: Move pmu hyp code under hyp's Makefile to avoid instrumentation	2019-05-24 14:53:20 +01:00
psci.c	KVM: Fix spelling in code comments	2020-05-16 15:05:01 +01:00
pvtime.c	KVM: arm64: Move virt/kvm/arm to arch/arm64	2020-05-16 15:03:59 +01:00
regmap.c	arm64: KVM: regmap: Fix unexpected switch fall-through	2019-07-26 15:33:41 +01:00
reset.c	KVM: arm64: Don't use empty structures as CPU reset state	2020-05-28 12:00:40 +01:00
sys_regs.c	KVM: arm64: Move sysreg reset check to boot time	2020-05-28 11:57:10 +01:00
sys_regs.h	KVM: arm64: Sanely ratelimit sysreg messages	2019-12-06 11:41:45 +00:00
sys_regs_generic_v8.c	KVM: Remove unnecessary asm/kvm_host.h includes	2020-03-16 17:57:34 +01:00
trace.h	KVM: arm64: Move virt/kvm/arm to arch/arm64	2020-05-16 15:03:59 +01:00
trace_arm.h	KVM: arm64: Move virt/kvm/arm to arch/arm64	2020-05-16 15:03:59 +01:00
trace_handle_exit.h	KVM: arm64: Move virt/kvm/arm to arch/arm64	2020-05-16 15:03:59 +01:00
va_layout.c	arm64: kvm: Fix IDMAP overlap with HYP VA	2020-01-19 16:05:23 +00:00
vgic-sys-reg-v3.c	KVM: arm64: Move virt/kvm/arm to arch/arm64	2020-05-16 15:03:59 +01:00