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target/ppc: Simplify powerpc_excp_booke
Differences from the generic powerpc_excp code: - No MSR bits are cleared at interrupt dispatch; - No MSR_HV; - No power saving states; - No Hypervisor Emulation Assistance; - SPEU needs special handling; - Big endian only; - Both 64 and 32 bits; - No System call vectored; - No Alternate Interrupt Location. Exceptions used: POWERPC_EXCP_ALIGN POWERPC_EXCP_APU POWERPC_EXCP_CRITICAL POWERPC_EXCP_DEBUG POWERPC_EXCP_DECR POWERPC_EXCP_DSI POWERPC_EXCP_DTLB POWERPC_EXCP_EFPDI POWERPC_EXCP_EFPRI POWERPC_EXCP_EXTERNAL POWERPC_EXCP_FIT POWERPC_EXCP_FPU POWERPC_EXCP_ISI POWERPC_EXCP_ITLB POWERPC_EXCP_MCHECK POWERPC_EXCP_PROGRAM POWERPC_EXCP_RESET POWERPC_EXCP_SPEU POWERPC_EXCP_SYSCALL POWERPC_EXCP_WDT Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20220128224018.1228062-3-farosas@linux.ibm.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
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