KVM: arm64: Save/restore PIE registers

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Define the new system registers that PIE introduces and context switch them.
The PIE feature is still hidden from the ID register, and not exposed to a VM.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: James Morse <james.morse@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Zenghui Yu <yuzenghui@huawei.com>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230606145859.697944-10-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Joey Gouly 2023-06-06 15:58:48 +01:00 • committed by Catalin Marinas

parent fbff560682

commit 86f9de9db1

3 changed files with 14 additions and 0 deletions

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4

arch/arm64/include/asm/kvm_host.h

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arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h

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arch/arm64/kvm/sys_regs.c

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