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exec: Add block comments for watchpoint routines 

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200508154359.7494-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
master
Richard Henderson 2020-05-08 08:43:41 -07:00 committed by Peter Maydell
parent 602ab78936
commit 390734a42d
1 changed files with 23 additions and 0 deletions
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23
include/hw/core/cpu.h
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@ -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