diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/core/arm/nce/arm_nce.cpp | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/core/arm/nce/arm_nce.cpp b/src/core/arm/nce/arm_nce.cpp index bb1f6d2e6..6eb6299cc 100644 --- a/src/core/arm/nce/arm_nce.cpp +++ b/src/core/arm/nce/arm_nce.cpp | |||
| @@ -116,10 +116,18 @@ bool ARM_NCE::HandleGuestFault(GuestContext* guest_ctx, void* raw_info, void* ra | |||
| 116 | return true; | 116 | return true; |
| 117 | } | 117 | } |
| 118 | 118 | ||
| 119 | // We can't handle the access, so trigger an exception. | 119 | // We can't handle the access, so determine why we crashed. |
| 120 | const bool is_prefetch_abort = host_ctx.pc == reinterpret_cast<u64>(info->si_addr); | 120 | const bool is_prefetch_abort = host_ctx.pc == reinterpret_cast<u64>(info->si_addr); |
| 121 | guest_ctx->esr_el1.fetch_or( | 121 | |
| 122 | static_cast<u64>(is_prefetch_abort ? HaltReason::PrefetchAbort : HaltReason::DataAbort)); | 122 | // For data aborts, skip the instruction and return to guest code. |
| 123 | // This will allow games to continue in many scenarios where they would otherwise crash. | ||
| 124 | if (!is_prefetch_abort) { | ||
| 125 | host_ctx.pc += 4; | ||
| 126 | return true; | ||
| 127 | } | ||
| 128 | |||
| 129 | // This is a prefetch abort. | ||
| 130 | guest_ctx->esr_el1.fetch_or(static_cast<u64>(HaltReason::PrefetchAbort)); | ||
| 123 | 131 | ||
| 124 | // Forcibly mark the context as locked. We are still running. | 132 | // Forcibly mark the context as locked. We are still running. |
| 125 | // We may race with SignalInterrupt here: | 133 | // We may race with SignalInterrupt here: |