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Commit 8e15597f authored by Ian Campbell's avatar Ian Campbell Committed by Stefano Stabellini
Browse files

xen: use new schedop interface for suspend 



Take the opportunity to comment on the semantics of the PV guest
suspend hypercall arguments.

Signed-off-by: default avatarIan Campbell <ian.campbell@citrix.com>
Reviewed-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent 55271723

arch/x86/include/asm/xen/hypercall.h

+10 −3
Original line number Diff line number Diff line
@@ -422,10 +422,17 @@ HYPERVISOR_set_segment_base(int reg, unsigned long value) 
#endif



static inline int

HYPERVISOR_suspend(unsigned long srec)

HYPERVISOR_suspend(unsigned long start_info_mfn)

{

	return _hypercall3(int, sched_op, SCHEDOP_shutdown,

			   SHUTDOWN_suspend, srec);

	struct sched_shutdown r = { .reason = SHUTDOWN_suspend };



	/*

	 * For a PV guest the tools require that the start_info mfn be

	 * present in rdx/edx when the hypercall is made. Per the

	 * hypercall calling convention this is the third hypercall

	 * argument, which is start_info_mfn here.

	 */

	return _hypercall3(int, sched_op_new, SCHEDOP_shutdown, &r, start_info_mfn);

}



static inline int