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2e8c8b5a7c
The ARMv8 ARM states when executing at EL2, EL3 or Secure EL1, ISR_EL1 shows the pending status of the physical IRQ, FIQ, or SError interrupts. Unfortunately, QEMU's implementation only considers the HCR_EL2 bits, and ignores the current exception level. This means a hypervisor trying to look at its own interrupt state actually sees the guest state, which is unexpected and breaks KVM as of Linux 5.3. Instead, check for the running EL and return the physical bits if not running in a virtualized context. Backports commit 7cf95aed53c8770a338617ef40d5f37d2c197853 from qemu |
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