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Commit 79390289 authored by Stefano Stabellini's avatar Stefano Stabellini Committed by David Vrabel
Browse files

arm,arm64/xen: introduce HYPERVISOR_suspend() 



Introduce HYPERVISOR_suspend() and a few additional empty stubs for
Xen arch specific functions called by drivers/xen/manage.c.

Signed-off-by: default avatarStefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
parent aa8532c3

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

+10 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ 
#define _ASM_ARM_XEN_HYPERCALL_H



#include <xen/interface/xen.h>

#include <xen/interface/sched.h>



long privcmd_call(unsigned call, unsigned long a1,

		unsigned long a2, unsigned long a3,
@@ -50,6 +51,15 @@ int HYPERVISOR_vcpu_op(int cmd, int vcpuid, void *extra_args); 
int HYPERVISOR_tmem_op(void *arg);

int HYPERVISOR_multicall(struct multicall_entry *calls, uint32_t nr);



static inline int

HYPERVISOR_suspend(unsigned long start_info_mfn)

{

	struct sched_shutdown r = { .reason = SHUTDOWN_suspend };



	/* start_info_mfn is unused on ARM */

	return HYPERVISOR_sched_op(SCHEDOP_shutdown, &r);

}



static inline void

MULTI_update_va_mapping(struct multicall_entry *mcl, unsigned long va,

			unsigned int new_val, unsigned long flags)

arch/arm/xen/enlighten.c

+8 −0
Original line number Diff line number Diff line
@@ -339,6 +339,14 @@ static int __init xen_pm_init(void) 
}

late_initcall(xen_pm_init);





/* empty stubs */

void xen_arch_pre_suspend(void) { }

void xen_arch_post_suspend(int suspend_cancelled) { }

void xen_timer_resume(void) { }

void xen_arch_resume(void) { }





/* In the hypervisor.S file. */

EXPORT_SYMBOL_GPL(HYPERVISOR_event_channel_op);

EXPORT_SYMBOL_GPL(HYPERVISOR_grant_table_op);