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Diffstat (limited to 'include/sysemu/accel-blocker.h')
-rw-r--r-- | include/sysemu/accel-blocker.h | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/include/sysemu/accel-blocker.h b/include/sysemu/accel-blocker.h deleted file mode 100644 index f07f368..0000000 --- a/include/sysemu/accel-blocker.h +++ /dev/null @@ -1,55 +0,0 @@ -/* - * Accelerator blocking API, to prevent new ioctls from starting and wait the - * running ones finish. - * This mechanism differs from pause/resume_all_vcpus() in that it does not - * release the BQL. - * - * Copyright (c) 2022 Red Hat Inc. - * - * Author: Emanuele Giuseppe Esposito <eesposit@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - */ -#ifndef ACCEL_BLOCKER_H -#define ACCEL_BLOCKER_H - -#include "sysemu/cpus.h" - -void accel_blocker_init(void); - -/* - * accel_{cpu_}ioctl_begin/end: - * Mark when ioctl is about to run or just finished. - * - * accel_{cpu_}ioctl_begin will block after accel_ioctl_inhibit_begin() is - * called, preventing new ioctls to run. They will continue only after - * accel_ioctl_inibith_end(). - */ -void accel_ioctl_begin(void); -void accel_ioctl_end(void); -void accel_cpu_ioctl_begin(CPUState *cpu); -void accel_cpu_ioctl_end(CPUState *cpu); - -/* - * accel_ioctl_inhibit_begin: start critical section - * - * This function makes sure that: - * 1) incoming accel_{cpu_}ioctl_begin() calls block - * 2) wait that all ioctls that were already running reach - * accel_{cpu_}ioctl_end(), kicking vcpus if necessary. - * - * This allows the caller to access shared data or perform operations without - * worrying of concurrent vcpus accesses. - */ -void accel_ioctl_inhibit_begin(void); - -/* - * accel_ioctl_inhibit_end: end critical section started by - * accel_ioctl_inhibit_begin() - * - * This function allows blocked accel_{cpu_}ioctl_begin() to continue. - */ -void accel_ioctl_inhibit_end(void); - -#endif /* ACCEL_BLOCKER_H */ |