KVM: arm64: Add handlers for protected VM System Registers

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Add system register handlers for protected VMs. These cover Sys64
registers (including feature id registers), and debug.

No functional change intended as these are not hooked in yet to
the guest exit handlers introduced earlier. So when trapping is
triggered, the exit handlers let the host handle it, as before.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-8-tabba@google.com

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This commit is contained in:

Fuad Tabba 2021-10-10 15:56:32 +01:00 • committed by Marc Zyngier

parent 16dd1fbb12

commit 6c30bfb18d

8 changed files with 737 additions and 1 deletions

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195

arch/arm64/include/asm/kvm_fixed_config.h

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5

arch/arm64/include/asm/kvm_hyp.h

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5

arch/arm64/kvm/arm.c

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29

arch/arm64/kvm/hyp/include/nvhe/sys_regs.h

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2

arch/arm64/kvm/hyp/nvhe/Makefile

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3

arch/arm64/kvm/hyp/nvhe/setup.c

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1

arch/arm64/kvm/hyp/nvhe/switch.c

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498

arch/arm64/kvm/hyp/nvhe/sys_regs.c

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