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| author |   Marc Zyngier <marc.zyngier@arm.com> | 2018-12-19 08:28:38 +0000 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2018-12-19 17:47:53 +0000 |
| commit | 58466766cd35754a061414c0c93225db2962948e (patch) | |
| tree | c39cdb2d9932603bfe0f704f9a1db7c6536dc103 /arch/arm/include/asm/kvm_asm.h | |
| parent | arm64: KVM: Avoid setting the upper 32 bits of VTCR_EL2 to 1 (diff) | |
| download | linux-dev-58466766cd35754a061414c0c93225db2962948e.tar.xz linux-dev-58466766cd35754a061414c0c93225db2962948e.zip | |
arm/arm64: KVM: Add ARM_EXCEPTION_IS_TRAP macro
32 and 64bit use different symbols to identify the traps.
32bit has a fine grained approach (prefetch abort, data abort and HVC),
while 64bit is pretty happy with just "trap".
This has been fine so far, except that we now need to decode some
of that in tracepoints that are common to both architectures.
Introduce ARM_EXCEPTION_IS_TRAP which abstracts the trap symbols
and make the tracepoint use it.
Acked-by: Christoffer Dall <christoffer.dall@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm/include/asm/kvm_asm.h')
| -rw-r--r-- | arch/arm/include/asm/kvm_asm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/include/asm/kvm_asm.h b/arch/arm/include/asm/kvm_asm.h index 231e87ad45d5..35491af87985 100644 --- a/arch/arm/include/asm/kvm_asm.h +++ b/arch/arm/include/asm/kvm_asm.h @@ -23,6 +23,10 @@ #define ARM_EXIT_WITH_ABORT_BIT 31 #define ARM_EXCEPTION_CODE(x) ((x) & ~(1U << ARM_EXIT_WITH_ABORT_BIT)) +#define ARM_EXCEPTION_IS_TRAP(x) \ + (ARM_EXCEPTION_CODE((x)) == ARM_EXCEPTION_PREF_ABORT || \ + ARM_EXCEPTION_CODE((x)) == ARM_EXCEPTION_DATA_ABORT || \ + ARM_EXCEPTION_CODE((x)) == ARM_EXCEPTION_HVC) #define ARM_ABORT_PENDING(x) !!((x) & (1U << ARM_EXIT_WITH_ABORT_BIT)) #define ARM_EXCEPTION_RESET 0 |