Oliver Upton 74158a8cad KVM: arm64: Skip instruction after emulating write to TCR_EL1 ...

Whelp, this is embarrassing. Since commit 082fdfd138 ("KVM: arm64:
Prevent guests from enabling HA/HD on Ampere1") KVM traps writes to
TCR_EL1 on AmpereOne to work around an erratum in the unadvertised
HAFDBS implementation, preventing the guest from enabling the feature.
Unfortunately, I failed virtualization 101 when working on that change,
and forgot to advance PC after instruction emulation.

Do the right thing and skip the MSR instruction after emulating the
write.

Fixes: 082fdfd138 ("KVM: arm64: Prevent guests from enabling HA/HD on Ampere1")
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230728000824.3848025-1-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

2023-07-28 17:11:23 +00:00

..

hyp

KVM: arm64: Skip instruction after emulating write to TCR_EL1

2023-07-28 17:11:23 +00:00

vgic

KVM: arm64: vgic-v4: Make the doorbell request robust w.r.t preemption

2023-07-13 22:23:34 +00:00

.gitignore

…

arch_timer.c

KVM: arm64: timers: Use CNTHCTL_EL2 when setting non-CNTKCTL_EL1 bits

2023-07-11 19:28:30 +00:00

arm.c

KVM: arm64: Rephrase percpu enable/disable tracking in terms of hyp

2023-07-20 17:17:32 +00:00

debug.c

arm64/sysreg: Rename TRBIDR_EL1 fields per auto-gen tools format

2023-06-14 14:37:33 +01:00

emulate-nested.c

KVM: arm64: nv: Support virtual EL2 exceptions

2023-02-11 09:16:11 +00:00

fpsimd.c

KVM: arm64: Rework CPTR_EL2 programming for HVHE configuration

2023-06-12 23:17:24 +00:00

guest.c

Merge tag 'kvmarm-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

2023-04-26 15:46:52 -04:00

handle_exit.c

KVM: arm64: Let errors from SMCCC emulation to reach userspace

2023-04-05 12:07:42 +01:00

hypercalls.c

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2023-05-01 12:06:20 -07:00

inject_fault.c

KVM: arm64: Fix repeated words in comments

2023-04-21 13:46:04 +01:00

Kconfig

kvm: Remove "select SRCU"

2023-04-05 13:47:42 +00:00

Makefile

KVM: arm64: nv: Filter out unsupported features from ID regs

2023-02-11 10:13:30 +00:00

mmio.c

…

mmu.c

KVM: arm64: Correctly handle page aging notifiers for unaligned memslot

2023-07-12 20:10:40 +00:00

nested.c

KVM: arm64: nv: Use reg_to_encoding() to get sysreg ID

2023-02-11 22:10:34 +00:00

pkvm.c

KVM: arm64: Handle kvm_arm_init failure correctly in finalize_pkvm

2023-07-11 19:30:14 +00:00

pmu-emul.c

KVM: arm64: Use raw_smp_processor_id() in kvm_pmu_probe_armpmu()

2023-06-07 16:48:34 +01:00

pmu.c

KVM: arm64: PMU: Don't overwrite PMUSERENR with vcpu loaded

2023-06-04 17:19:36 +01:00

psci.c

Merge branch kvm-arm64/smccc-filtering into kvmarm-master/next

2023-04-21 09:44:32 +01:00

pvtime.c

…

reset.c

KVM: arm64: Make vCPU feature flags consistent VM-wide

2023-06-12 23:08:33 +00:00

stacktrace.c

…

sys_regs.c

KVM: arm64: Fix the name of sys_reg_desc related to PMU

2023-07-14 23:34:05 +00:00

sys_regs.h

KVM: arm64: Save ID registers' sanitized value per guest

2023-06-15 12:55:08 +00:00

trace_arm.h

KVM: arm64: nv: timers: Support hyp timer emulation

2023-03-30 19:01:10 +01:00

trace_handle_exit.h

…

trace.h

…

trng.c

…

va_layout.c

…

vgic-sys-reg-v3.c

…

vmid.c

KVM: arm64: Use the bitmap API to allocate bitmaps

2023-04-20 09:10:28 +01:00