ARM: KVM: add world-switch for AMAIR{0,1}

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commit af20814ee9 upstream.

HCR.TVM traps (among other things) accesses to AMAIR0 and AMAIR1.
In order to minimise the amount of surprise a guest could generate by
trying to access these registers with caches off, add them to the
list of registers we switch/handle.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Marc Zyngier 2014-01-22 10:20:09 +00:00 • committed by Greg Kroah-Hartman

parent 5a4cd8a526

commit 45b1407ead

3 changed files with 19 additions and 3 deletions

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4

arch/arm/include/asm/kvm_asm.h

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6

arch/arm/kvm/coproc.c

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12

arch/arm/kvm/interrupts_head.S

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