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  1. 15 Jan, 2015 7 commits
    • Mark Rutland's avatar
      arm64: kvm: decode ESR_ELx.EC when reporting exceptions · 056bb5f5
      Mark Rutland authored 
      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: default avatarMark Rutland <mark.rutland@arm.com>
Acked-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: default avatarChristoffer 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>
      056bb5f5
    • Mark Rutland's avatar
      arm64: kvm: remove ESR_EL2_* macros · 6e53031e
      Mark Rutland authored 
      Now that all users have been moved over to the common ESR_ELx_* macros,
remove the redundant ESR_EL2 macros. To maintain compatibility with the
fault handling code shared with 32-bit, the FSC_{FAULT,PERM} macros are
retained as aliases for the common ESR_ELx_FSC_{FAULT,PERM} definitions.

There should be no functional change as a result of this patch.
Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
Acked-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: default avatarChristoffer 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>
      6e53031e
    • Mark Rutland's avatar
      arm64: remove ESR_EL1_* macros · 4a939087
      Mark Rutland authored 
      Now that all users have been moved over to the common ESR_ELx_* macros,
remove the redundant ESR_EL1 macros.

There should be no functional change as a result of this patch.
Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Reviewed-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>
      4a939087
    • Mark Rutland's avatar
      arm64: kvm: move to ESR_ELx macros · c6d01a94
      Mark Rutland authored 
      Now that we have common ESR_ELx macros, make use of them in the arm64
KVM code. The addition of <asm/esr.h> to the include path highlighted
badly ordered (i.e. not alphabetical) include lists; these are changed
to alphabetical order.

There should be no functional change as a result of this patch.
Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
Reviewed-by: default avatarChristoffer 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>
      c6d01a94
    • Mark Rutland's avatar
      arm64: decode ESR_ELx.EC when reporting exceptions · 60a1f02c
      Mark Rutland authored 
      To aid the developer when something triggers an unexpected exception,
decode the ESR_ELx.EC field when logging an ESR_ELx value. 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: default avatarMark Rutland <mark.rutland@arm.com>
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Reviewed-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>
      60a1f02c
    • Mark Rutland's avatar
      arm64: move to ESR_ELx macros · aed40e01
      Mark Rutland authored 
      Now that we have common ESR_ELx_* macros, move the core arm64 code over
to them.

There should be no functional change as a result of this patch.
Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Reviewed-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>
      aed40e01
    • Mark Rutland's avatar
      arm64: introduce common ESR_ELx_* definitions · cf99a48d
      Mark Rutland authored 
      Currently we have separate ESR_EL{1,2}_* macros, despite the fact that
the encodings are common. While encodings are architected to refer to
the current EL or a lower EL, the macros refer to particular ELs (e.g.
ESR_ELx_EC_DABT_EL0). Having these duplicate definitions is redundant,
and their naming is misleading.

This patch introduces common ESR_ELx_* macros that can be used in all
cases, in preparation for later patches which will migrate existing
users over. Some additional cleanups are made in the process:

* Suffixes for particular exception levelts (e.g. _EL0, _EL1) are
  replaced with more general _LOW and _CUR suffixes, matching the
  architectural intent.

* ESR_ELx_EC_WFx, rather than ESR_ELx_EC_WFI is introduced, as this
  EC encoding covers traps from both WFE and WFI. Similarly,
  ESR_ELx_WFx_ISS_WFE rather than ESR_ELx_EC_WFI_ISS_WFE is introduced.

* Multi-bit fields are given consistently named _SHIFT and _MASK macros.

* UL() is used for compatiblity with assembly files.

* Comments are added for currently unallocated ESR_ELx.EC encodings.

For fields other than ESR_ELx.EC, macros are only implemented for fields
for which there is already an ESR_EL{1,2}_* macro.
Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Reviewed-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>
      cf99a48d
  3. 06 Jan, 2015 1 commit
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