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target/ppc: Implement watchpoint debug facility for v2.07S

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ISA v2.07S introduced the watchpoint facility based on the DAWR0
and DAWRX0 SPRs. Implement this in TCG.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Nicholas Piggin 2023-08-08 13:11:15 +10:00 • committed by Cédric Le Goater
parent 14192307ef
commit d5ee641cfc
10 changed files with 147 additions and 3 deletions
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4
target/ppc/cpu.h
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@ -1138,6 +1138,7 @@ struct CPUArchState {
#if defined(TARGET_PPC64)
ppc_slb_t slb[MAX_SLB_ENTRIES]; /* PowerPC 64 SLB area */
struct CPUBreakpoint *ciabr_breakpoint;
struct CPUWatchpoint *dawr0_watchpoint;
#endif
target_ulong sr[32]; /* segment registers */
uint32_t nb_BATs; /* number of BATs */
@ -1406,6 +1407,9 @@ void ppc_store_sdr1(CPUPPCState *env, target_ulong value);
void ppc_store_lpcr(PowerPCCPU *cpu, target_ulong val);
void ppc_update_ciabr(CPUPPCState *env);
void ppc_store_ciabr(CPUPPCState *env, target_ulong value);
void ppc_update_daw0(CPUPPCState *env);
void ppc_store_dawr0(CPUPPCState *env, target_ulong value);
void ppc_store_dawrx0(CPUPPCState *env, uint32_t value);
#endif /* !defined(CONFIG_USER_ONLY) */
void ppc_store_msr(CPUPPCState *env, target_ulong value);