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replay: simplify async event processing

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This patch joins replay event id and async event id into single byte in the log.
It makes processing a bit faster and log a bit smaller.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

--

v2: minor enum fixes (suggested by Richard Henderson)
Message-Id: <165364838393.688121.8191379555130516329.stgit@pasha-ThinkPad-X280>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Pavel Dovgalyuk 2022-05-27 13:46:23 +03:00 • committed by Paolo Bonzini
parent 60618e2d77
commit 3e21408b05
4 changed files with 31 additions and 42 deletions
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31
replay/replay-internal.h
View file

@ -12,6 +12,19 @@
*
*/
/* Asynchronous events IDs */
typedef enum ReplayAsyncEventKind {
REPLAY_ASYNC_EVENT_BH,
REPLAY_ASYNC_EVENT_BH_ONESHOT,
REPLAY_ASYNC_EVENT_INPUT,
REPLAY_ASYNC_EVENT_INPUT_SYNC,
REPLAY_ASYNC_EVENT_CHAR_READ,
REPLAY_ASYNC_EVENT_BLOCK,
REPLAY_ASYNC_EVENT_NET,
REPLAY_ASYNC_COUNT
} ReplayAsyncEventKind;
/* Any changes to order/number of events will need to bump REPLAY_VERSION */
enum ReplayEvents {
/* for instruction event */
@ -22,6 +35,7 @@ enum ReplayEvents {
EVENT_EXCEPTION,
/* for async events */
EVENT_ASYNC,
EVENT_ASYNC_LAST = EVENT_ASYNC + REPLAY_ASYNC_COUNT - 1,
/* for shutdown requests, range allows recovery of ShutdownCause */
EVENT_SHUTDOWN,
EVENT_SHUTDOWN_LAST = EVENT_SHUTDOWN + SHUTDOWN_CAUSE__MAX,
@ -49,21 +63,6 @@ enum ReplayEvents {
EVENT_COUNT
};
/* Asynchronous events IDs */
enum ReplayAsyncEventKind {
REPLAY_ASYNC_EVENT_BH,
REPLAY_ASYNC_EVENT_BH_ONESHOT,
REPLAY_ASYNC_EVENT_INPUT,
REPLAY_ASYNC_EVENT_INPUT_SYNC,
REPLAY_ASYNC_EVENT_CHAR_READ,
REPLAY_ASYNC_EVENT_BLOCK,
REPLAY_ASYNC_EVENT_NET,
REPLAY_ASYNC_COUNT
};
typedef enum ReplayAsyncEventKind ReplayAsyncEventKind;
typedef struct ReplayState {
/*! Cached clock values. */
int64_t cached_clock[REPLAY_CLOCK_COUNT];
@ -83,8 +82,6 @@ typedef struct ReplayState {
uint64_t block_request_id;
/*! Prior value of the host clock */
uint64_t host_clock_last;
/*! Asynchronous event type read from the log */
int32_t read_event_kind;
/*! Asynchronous event id read from the log */
uint64_t read_event_id;
} ReplayState;