KVM: arm64: Provide __flush_dcache_area at EL2

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We will need to do cache maintenance at EL2 soon, so compile a copy of
__flush_dcache_area at EL2, and provide a copy of arm64_ftr_reg_ctrel0
as it is needed by the read_ctr macro.

Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210319100146.1149909-15-qperret@google.com

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Quentin Perret 2021-03-19 10:01:22 +00:00 • committed by Marc Zyngier

parent 7a440cc783

commit d460df1292

5 changed files with 24 additions and 1 deletions

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2

arch/arm64/include/asm/kvm_cpufeature.h

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arch/arm64/kvm/hyp/nvhe/Makefile

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13

arch/arm64/kvm/hyp/nvhe/cache.S

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arch/arm64/kvm/hyp/nvhe/hyp-smp.c

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arch/arm64/kvm/sys_regs.c

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