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target/arm: Don't migrate CPUARMState.features

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As feature flags are added or removed, the meanings of bits in the
`features` field can change between QEMU versions, causing migration
failures. Additionally, migrating the field is not useful because it is
a constant function of the CPU being used.

Fixes: LP:1914696
Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Tested-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Aaron Lindsay 2021-02-03 11:13:40 -05:00 committed by Peter Maydell
parent 83339e21d0
commit af903caed9
1 changed files with 1 additions and 1 deletions
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target/arm/machine.c
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@ -810,7 +810,7 @@ const VMStateDescription vmstate_arm_cpu = {
VMSTATE_UINT64(env.exclusive_addr, ARMCPU), VMSTATE_UINT64(env.exclusive_addr, ARMCPU),
VMSTATE_UINT64(env.exclusive_val, ARMCPU), VMSTATE_UINT64(env.exclusive_val, ARMCPU),
VMSTATE_UINT64(env.exclusive_high, ARMCPU), VMSTATE_UINT64(env.exclusive_high, ARMCPU),
VMSTATE_UINT64(env.features, ARMCPU), VMSTATE_UNUSED(sizeof(uint64_t)),
VMSTATE_UINT32(env.exception.syndrome, ARMCPU), VMSTATE_UINT32(env.exception.syndrome, ARMCPU),
VMSTATE_UINT32(env.exception.fsr, ARMCPU), VMSTATE_UINT32(env.exception.fsr, ARMCPU),
VMSTATE_UINT64(env.exception.vaddress, ARMCPU), VMSTATE_UINT64(env.exception.vaddress, ARMCPU),