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[PATCH v5 01/19] exec: Add block comments for watchpoint routines
From: |
Richard Henderson |
Subject: |
[PATCH v5 01/19] exec: Add block comments for watchpoint routines |
Date: |
Fri, 8 May 2020 08:43:41 -0700 |
Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
include/hw/core/cpu.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index 5bf94d28cf..07f7698155 100644
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -1100,8 +1100,31 @@ int cpu_watchpoint_remove(CPUState *cpu, vaddr addr,
vaddr len, int flags);
void cpu_watchpoint_remove_by_ref(CPUState *cpu, CPUWatchpoint *watchpoint);
void cpu_watchpoint_remove_all(CPUState *cpu, int mask);
+
+/**
+ * cpu_check_watchpoint:
+ * @cpu: cpu context
+ * @addr: guest virtual address
+ * @len: access length
+ * @attrs: memory access attributes
+ * @flags: watchpoint access type
+ * @ra: unwind return address
+ *
+ * Check for a watchpoint hit in [addr, addr+len) of the type
+ * specified by @flags. Exit via exception with a hit.
+ */
void cpu_check_watchpoint(CPUState *cpu, vaddr addr, vaddr len,
MemTxAttrs attrs, int flags, uintptr_t ra);
+
+/**
+ * cpu_watchpoint_address_matches:
+ * @cpu: cpu context
+ * @addr: guest virtual address
+ * @len: access length
+ *
+ * Return the watchpoint flags that apply to [addr, addr+len).
+ * If no watchpoint is registered for the range, the result is 0.
+ */
int cpu_watchpoint_address_matches(CPUState *cpu, vaddr addr, vaddr len);
#endif
--
2.20.1
- [PATCH v5 00/19] target/arm: sve load/store improvements, Richard Henderson, 2020/05/08
- [PATCH v5 05/19] accel/tcg: Add probe_access_flags, Richard Henderson, 2020/05/08
- [PATCH v5 07/19] target/arm: Use cpu_*_data_ra for sve_ldst_tlb_fn, Richard Henderson, 2020/05/08
- [PATCH v5 08/19] target/arm: Drop manual handling of set/clear_helper_retaddr, Richard Henderson, 2020/05/08
- [PATCH v5 11/19] target/arm: Use SVEContLdSt in sve_ld1_r, Richard Henderson, 2020/05/08
- [PATCH v5 06/19] accel/tcg: Add endian-specific cpu_{ld, st}* operations, Richard Henderson, 2020/05/08