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KVM: arm64: Handle physical FIQ as an IRQ while running a guest

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As we we now entertain the possibility of FIQ being used on the host,
treat the signalling of a FIQ while running a guest as an IRQ,
causing an exit instead of a HYP panic.

Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Marc Zyngier 2021-02-19 16:39:31 +00:00
parent 0e5cb77706
commit 74501499d4
1 changed files with 3 additions and 3 deletions
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6
arch/arm64/kvm/hyp/hyp-entry.S
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@ -76,6 +76,7 @@ el1_trap:
b __guest_exit
el1_irq:
el1_fiq:
get_vcpu_ptr x1, x0
mov x0, #ARM_EXCEPTION_IRQ
b __guest_exit
@ -131,7 +132,6 @@ SYM_CODE_END(\label)
invalid_vector el2t_error_invalid
invalid_vector el2h_irq_invalid
invalid_vector el2h_fiq_invalid
invalid_vector el1_fiq_invalid
.ltorg
@ -179,12 +179,12 @@ SYM_CODE_START(__kvm_hyp_vector)
valid_vect el1_sync // Synchronous 64-bit EL1
valid_vect el1_irq // IRQ 64-bit EL1
invalid_vect el1_fiq_invalid // FIQ 64-bit EL1
valid_vect el1_fiq // FIQ 64-bit EL1
valid_vect el1_error // Error 64-bit EL1
valid_vect el1_sync // Synchronous 32-bit EL1
valid_vect el1_irq // IRQ 32-bit EL1
invalid_vect el1_fiq_invalid // FIQ 32-bit EL1
valid_vect el1_fiq // FIQ 32-bit EL1
valid_vect el1_error // Error 32-bit EL1
SYM_CODE_END(__kvm_hyp_vector)