KVM: arm64: selftests: Add MMIO readl/writel support

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Define the readl() and writel() functions for the guests to
access (4-byte) the MMIO region.

The routines, and their dependents, are inspired from the kernel's
arch/arm64/include/asm/io.h and arch/arm64/include/asm/barrier.h.

Signed-off-by: Raghavendra Rao Ananta <rananta@google.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211007233439.1826892-2-rananta@google.com

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Raghavendra Rao Ananta 2021-10-07 23:34:25 +00:00 • committed by Marc Zyngier

parent 9e1ff307c7

commit 88ec7e258b

1 changed files with 45 additions and 1 deletions

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tools/testing/selftests/kvm/include/aarch64/processor.h

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