linux/arch/arm64/kvm
Marc Zyngier 679354bea0 KVM: arm64: Restore GICv2-on-GICv3 functionality
commit 1caa71a7a6 upstream.

When reworking the vgic locking, the vgic distributor registration
got simplified, which was a very good cleanup. But just a tad too
radical, as we now register the *native* vgic only, ignoring the
GICv2-on-GICv3 that allows pre-historic VMs (or so I thought)
to run.

As it turns out, QEMU still defaults to GICv2 in some cases, and
this breaks Nathan's setup!

Fix it by propagating the *requested* vgic type rather than the
host's version.

Fixes: 59112e9c39 ("KVM: arm64: vgic: Fix a circular locking issue")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
link: https://lore.kernel.org/r/20230606221525.GA2269598@dev-arch.thelio-3990X
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2023-06-28 11:12:40 +02:00
..
hyp KVM: arm64: PMU: Restore the host's PMUSERENR_EL0 2023-06-28 11:12:28 +02:00
vgic KVM: arm64: Restore GICv2-on-GICv3 functionality 2023-06-28 11:12:40 +02:00
.gitignore KVM: arm64: Generate hyp_constants.h for the host 2021-12-06 08:37:03 +00:00
arch_timer.c Merge branch kvm-arm64/burn-the-flags into kvmarm-master/next 2022-06-29 10:30:10 +01:00
arm.c KVM: arm64: Use config_lock to protect data ordered against KVM_RUN 2023-05-11 23:03:03 +09:00
debug.c Merge branch kvm-arm64/single-step-async-exception into kvmarm-master/next 2022-09-19 10:59:29 +01:00
fpsimd.c KVM: arm64: Move the handling of !FP outside of the fast path 2022-06-29 10:23:56 +01:00
guest.c KVM: arm64: Use config_lock to protect data ordered against KVM_RUN 2023-05-11 23:03:03 +09:00
handle_exit.c KVM: arm64: Clear PSTATE.SS when the Software Step state was Active-pending 2022-09-19 10:48:53 +01:00
hypercalls.c KVM: arm64: Use config_lock to protect data ordered against KVM_RUN 2023-05-11 23:03:03 +09:00
inject_fault.c KVM: arm64: Move vcpu PC/Exception flags to the input flag set 2022-06-10 09:54:34 +01:00
irq.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 2019-06-05 17:37:15 +02:00
Kconfig KVM: arm64: Move PROTECTED_NVHE_STACKTRACE around 2022-07-27 18:18:03 +01:00
Makefile KVM: arm64: Move nVHE stacktrace unwinding into its own compilation unit 2022-07-27 18:18:03 +01:00
mmio.c KVM: arm64: Generalise VM features into a set of flags 2022-03-18 14:02:33 +00:00
mmu.c KVM: arm64: Retry fault if vma_lookup() results become invalid 2023-05-01 08:26:27 +09:00
pkvm.c KVM: arm64: Move host EL1 code out of hyp/ directory 2021-12-06 08:37:03 +00:00
pmu-emul.c KVM: arm64: Use config_lock to protect data ordered against KVM_RUN 2023-05-11 23:03:03 +09:00
pmu.c KVM: arm64: Pass pmu events to hyp via vcpu 2022-05-15 11:26:41 +01:00
psci.c KVM: arm64: Avoid vcpu->mutex v. kvm->lock inversion in CPU_ON 2023-05-11 23:03:03 +09:00
pvtime.c KVM: arm64: Use kvm_write_guest_lock when init stolen time 2020-12-03 19:02:18 +00:00
reset.c KVM: arm64: Avoid lock inversion when setting the VM register width 2023-05-11 23:03:03 +09:00
stacktrace.c arm64: stacktrace: track hyp stacks in unwinder's address space 2022-09-09 12:30:08 +01:00
sys_regs.c KVM: arm64: PMU: Restore the guest's EL0 event counting after migration 2023-04-20 12:35:07 +02:00
sys_regs.h KVM: arm64: Add a visibility bit to ignore user writes 2022-09-14 11:36:16 +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: Move arm64's MMU notifier trace events to generic code 2021-04-17 08:30:56 -04:00
trace_handle_exit.h KVM: arm64: Upgrade trace_kvm_arm_set_dreg32() to 64bit 2021-08-20 11:12:18 +01:00
trng.c KVM: arm64: Implement the TRNG hypervisor call 2021-01-25 22:19:31 +00:00
va_layout.c arm64: alternatives: kvm: prepare for cap changes 2022-09-16 17:15:02 +01:00
vgic-sys-reg-v3.c KVM: arm64: vgic-v3: Convert userspace accessors over to FIELD_GET/FIELD_PREP 2022-07-17 11:55:33 +01:00
vmid.c KVM: arm64: Fix inconsistent indenting 2022-06-07 15:27:05 +01:00