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plugins: Reorg arguments to qemu_plugin_vcpu_mem_cb

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Use the MemOpIdx directly, rather than the rearrangement
of the same bits currently done by the trace infrastructure.
Pass in enum qemu_plugin_mem_rw so that we are able to treat
read-modify-write operations as a single operation.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-07-26 11:48:30 -10:00
parent c3e83e376c
commit 37aff08726
8 changed files with 82 additions and 53 deletions
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26
include/qemu/plugin.h
View file

@ -12,6 +12,7 @@
#include "qemu/error-report.h"
#include "qemu/queue.h"
#include "qemu/option.h"
#include "exec/memopidx.h"
/*
* Events that plugins can subscribe to.
@ -36,6 +37,25 @@ enum qemu_plugin_event {
struct qemu_plugin_desc;
typedef QTAILQ_HEAD(, qemu_plugin_desc) QemuPluginList;
/*
* Construct a qemu_plugin_meminfo_t.
*/
static inline qemu_plugin_meminfo_t
make_plugin_meminfo(MemOpIdx oi, enum qemu_plugin_mem_rw rw)
{
return oi | (rw << 16);
}
/*
* Extract the memory operation direction from a qemu_plugin_meminfo_t.
* Other portions may be extracted via get_memop and get_mmuidx.
*/
static inline enum qemu_plugin_mem_rw
get_plugin_meminfo_rw(qemu_plugin_meminfo_t i)
{
return i >> 16;
}
#ifdef CONFIG_PLUGIN
extern QemuOptsList qemu_plugin_opts;
@ -180,7 +200,8 @@ qemu_plugin_vcpu_syscall(CPUState *cpu, int64_t num, uint64_t a1,
uint64_t a6, uint64_t a7, uint64_t a8);
void qemu_plugin_vcpu_syscall_ret(CPUState *cpu, int64_t num, int64_t ret);
void qemu_plugin_vcpu_mem_cb(CPUState *cpu, uint64_t vaddr, uint32_t meminfo);
void qemu_plugin_vcpu_mem_cb(CPUState *cpu, uint64_t vaddr,
MemOpIdx oi, enum qemu_plugin_mem_rw rw);
void qemu_plugin_flush_cb(void);
@ -244,7 +265,8 @@ void qemu_plugin_vcpu_syscall_ret(CPUState *cpu, int64_t num, int64_t ret)
{ }
static inline void qemu_plugin_vcpu_mem_cb(CPUState *cpu, uint64_t vaddr,
uint32_t meminfo)
MemOpIdx oi,
enum qemu_plugin_mem_rw rw)
{ }
static inline void qemu_plugin_flush_cb(void)