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4a9ee4fc79
KVM/arm64 fixes for 7.1, take #2 - Add the pKVM side of the workaround for ARM's erratum 4193714, provided that the EL3 firmware does its part of the job. KVM will refuse to initialise otherwise. - Correctly handle 52bit VAs for guest EL2 stage-1 translations when running under NV with E2H==0. - Correctly deal with permission faults in guest_memfd memslots. - Fix the steal-time selftest after the infrastructure was reworked. - Make sure the host cannot pass a non-sensical clock update to the EL2 tracing infrastructure. - Appoint Steffen Eiden as a reviewer in anticipation of the KVM/s390 ability to run arm64 guests, which will inevitably lead to arm64 code being directly used on s390. - Make sure that EL2 is configured with both exception entry and exit being Context Synchronization Events. - Handle the current vcpu being NULL on EL2 panic. - Fix the selftest_vcpu memcache being empty at the point of donation or sharing. - Check that the memcache has enough capacity before engaging on the share/donate path. - Fix __deactivate_fgt() to use its parameter rather than a variable in the macro context.