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system: introduce a new MlockState enum

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Replace the boolean value enable_mlock with an enum and add a helper to
decide whether we should be calling os_mlock.

This is a stepping stone towards introducing a new mlock mode, which
will be the third possible state of this enum.

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Link: https://lore.kernel.org/r/20250212143920.1269754-4-d-tatianin@yandex-team.ru
Signed-off-by: Peter Xu <peterx@redhat.com>
This commit is contained in:
Daniil Tatianin 2025-02-12 17:39:19 +03:00 • committed by Peter Xu
parent cb74f2b8a6
commit cd2e472e54
5 changed files with 24 additions and 6 deletions
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10
include/system/system.h
View file

@ -44,10 +44,18 @@ extern int display_opengl;
extern const char *keyboard_layout;
extern int old_param;
extern uint8_t *boot_splash_filedata;
extern bool enable_mlock;
extern bool enable_cpu_pm;
extern QEMUClockType rtc_clock;
typedef enum {
MLOCK_OFF = 0,
MLOCK_ON,
} MlockState;
bool should_mlock(MlockState);
extern MlockState mlock_state;
#define MAX_OPTION_ROMS 16
typedef struct QEMUOptionRom {
const char *name;