arm64: kvm: decode ESR_ELx.EC when reporting exceptions
authorMark Rutland <mark.rutland@arm.com>
Wed, 7 Jan 2015 11:26:18 +0000 (11:26 +0000)
committerMark Rutland <mark.rutland@arm.com>
Thu, 15 Jan 2015 12:24:52 +0000 (12:24 +0000)
commit056bb5f51c357ee00046fde4929a03468ff45e7a
tree4db9409d26bbd54b21a128323e2f619c48e1fc95
parent6e53031ed840fc6d6ad4d4e5778eed5a50183f23
arm64: kvm: decode ESR_ELx.EC when reporting exceptions

To aid the developer when something triggers an unexpected exception,
decode the ESR_ELx.EC field when logging an ESR_ELx value using the
newly introduced esr_get_class_string. This doesn't tell the developer
the specifics of the exception encoded in the remaining IL and ISS bits,
but it can be helpful to distinguish between exception classes (e.g.
SError and a data abort) without having to manually decode the field,
which can be tiresome.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>
arch/arm64/kvm/handle_exit.c