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kvm: arm64: Add 52bit support for PAR to HPFAR conversoin

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Add support for handling 52bit addresses in PAR to HPFAR
conversion. Instead of hardcoding the address limits, we
now use PHYS_MASK_SHIFT.

Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Christoffer Dall <cdall@kernel.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Suzuki K Poulose
2018-09-26 17:32:51 +01:00
committed by Marc Zyngier
parent 8ad50c8985
commit bc1d7de8c5
2 changed files with 8 additions and 1 deletions
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7
arch/arm64/include/asm/kvm_arm.h
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@@ -311,6 +311,13 @@
/* Hyp Prefetch Fault Address Register (HPFAR/HDFAR) */
#define HPFAR_MASK (~UL(0xf))
/*
* We have
* PAR [PA_Shift - 1 : 12] = PA [PA_Shift - 1 : 12]
* HPFAR [PA_Shift - 9 : 4] = FIPA [PA_Shift - 1 : 12]
*/
#define PAR_TO_HPFAR(par) \
(((par) & GENMASK_ULL(PHYS_MASK_SHIFT - 1, 12)) >> 8)
#define kvm_arm_exception_type \
{0, "IRQ" }, \