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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647// SPDX-License-Identifier: GPL-2.0
#include <linux/entry-virt.h>
static int xfer_to_guest_mode_work(unsigned long ti_work){ do { int ret;
if (ti_work & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL)) return -EINTR;
if (ti_work & (_TIF_NEED_RESCHED | _TIF_NEED_RESCHED_LAZY)) schedule();
if (ti_work & _TIF_NOTIFY_RESUME) resume_user_mode_work(NULL);
ret = arch_xfer_to_guest_mode_handle_work(ti_work); if (ret) return ret;
ti_work = read_thread_flags(); } while (ti_work & XFER_TO_GUEST_MODE_WORK); return 0;}
int xfer_to_guest_mode_handle_work(void){ unsigned long ti_work;
/* * This is invoked from the outer guest loop with interrupts and * preemption enabled. * * KVM invokes xfer_to_guest_mode_work_pending() with interrupts * disabled in the inner loop before going into guest mode. No need * to disable interrupts here. */ ti_work = read_thread_flags(); if (!(ti_work & XFER_TO_GUEST_MODE_WORK)) return 0;
return xfer_to_guest_mode_work(ti_work);}EXPORT_SYMBOL_GPL(xfer_to_guest_mode_handle_work);