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target/ppc/POWER9: Add POWER9 mmu fault handler

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Add a new mmu fault handler for the POWER9 cpu and add it as the handler
for the POWER9 cpu definition.

This handler checks if the guest is radix or hash based on the value in the
partition table entry and calls the correct fault handler accordingly.

The hash fault handling code has also been updated to check if the
partition is using segment tables.

Currently only legacy hash (no segment tables) is supported.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Suraj Jitindar Singh 2017-03-01 17:54:38 +11:00 • committed by David Gibson
parent 4f4f28ffc1
commit b2899495e3
6 changed files with 113 additions and 2 deletions
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8
target/ppc/mmu-hash64.c
View file

@ -28,6 +28,7 @@
#include "mmu-hash64.h"
#include "exec/log.h"
#include "hw/hw.h"
#include "mmu-book3s-v3.h"
//#define DEBUG_SLB
@ -726,6 +727,13 @@ int ppc_hash64_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr,
/* 2. Translation is on, so look up the SLB */
slb = slb_lookup(cpu, eaddr);
if (!slb) {
/* No entry found, check if in-memory segment tables are in use */
if ((env->mmu_model & POWERPC_MMU_V3) && ppc64_use_proc_tbl(cpu)) {
/* TODO - Unsupported */
error_report("Segment Table Support Unimplemented");
exit(1);
}
/* Segment still not found, generate the appropriate interrupt */
if (rwx == 2) {
cs->exception_index = POWERPC_EXCP_ISEG;
env->error_code = 0;