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| author | Beata Michalska | 2020-07-03 17:59:42 +0200 |
|---|---|---|
| committer | Peter Maydell | 2020-07-03 17:59:42 +0200 |
| commit | 1711bfa5f5b2b108901813f57246c9ff4a44a50f (patch) | |
| tree | 445b909cd5b4a075fc14b94175b274b3266703cc /target/arm/cpu.h | |
| parent | target/arm: kvm: Handle DABT with no valid ISS (diff) | |
| download | qemu-1711bfa5f5b2b108901813f57246c9ff4a44a50f.tar.gz qemu-1711bfa5f5b2b108901813f57246c9ff4a44a50f.tar.xz qemu-1711bfa5f5b2b108901813f57246c9ff4a44a50f.zip | |
target/arm: kvm: Handle misconfigured dabt injection
Injecting external data abort through KVM might trigger
an issue on kernels that do not get updated to include the KVM fix.
For those and aarch32 guests, the injected abort gets misconfigured
to be an implementation defined exception. This leads to the guest
repeatedly re-running the faulting instruction.
Add support for handling that case.
[
Fixed-by: 018f22f95e8a
('KVM: arm: Fix DFSR setting for non-LPAE aarch32 guests')
Fixed-by: 21aecdbd7f3a
('KVM: arm: Make inject_abt32() inject an external abort instead')
]
Signed-off-by: Beata Michalska <beata.michalska@linaro.org>
Acked-by: Andrew Jones <drjones@redhat.com>
Message-id: 20200629114110.30723-3-beata.michalska@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm/cpu.h')
| -rw-r--r-- | target/arm/cpu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/target/arm/cpu.h b/target/arm/cpu.h index cf99dcca9f..9e8ed423ea 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -573,6 +573,8 @@ typedef struct CPUARMState { uint64_t esr; } serror; + uint8_t ext_dabt_raised; /* Tracking/verifying injection of ext DABT */ + /* State of our input IRQ/FIQ/VIRQ/VFIQ lines */ uint32_t irq_line_state; |