Commit 403299a8 authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'upstream/xen-settime' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen

* 'upstream/xen-settime' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen:
  xen/dom0: set wallclock time in Xen
  xen: add dom0_op hypercall
  xen/acpi: Domain0 acpi parser related platform hypercall
parents daedd870 fdb9eb9f
......@@ -76,6 +76,7 @@ DEFINE_GUEST_HANDLE(char);
DEFINE_GUEST_HANDLE(int);
DEFINE_GUEST_HANDLE(long);
DEFINE_GUEST_HANDLE(void);
DEFINE_GUEST_HANDLE(uint64_t);
typedef unsigned long xen_pfn_t;
DEFINE_GUEST_HANDLE(xen_pfn_t);
......
......@@ -47,6 +47,7 @@
#include <xen/interface/xen.h>
#include <xen/interface/sched.h>
#include <xen/interface/physdev.h>
#include <xen/interface/platform.h>
/*
* The hypercall asms have to meet several constraints:
......@@ -300,6 +301,13 @@ HYPERVISOR_set_timer_op(u64 timeout)
return _hypercall2(long, set_timer_op, timeout_lo, timeout_hi);
}
static inline int
HYPERVISOR_dom0_op(struct xen_platform_op *platform_op)
{
platform_op->interface_version = XENPF_INTERFACE_VERSION;
return _hypercall1(int, dom0_op, platform_op);
}
static inline int
HYPERVISOR_set_debugreg(int reg, unsigned long value)
{
......
......@@ -55,6 +55,7 @@ DEFINE_GUEST_HANDLE(char);
DEFINE_GUEST_HANDLE(int);
DEFINE_GUEST_HANDLE(long);
DEFINE_GUEST_HANDLE(void);
DEFINE_GUEST_HANDLE(uint64_t);
#endif
#ifndef HYPERVISOR_VIRT_START
......
......@@ -201,8 +201,22 @@ static unsigned long xen_get_wallclock(void)
static int xen_set_wallclock(unsigned long now)
{
struct xen_platform_op op;
int rc;
/* do nothing for domU */
return -1;
if (!xen_initial_domain())
return -1;
op.cmd = XENPF_settime;
op.u.settime.secs = now;
op.u.settime.nsecs = 0;
op.u.settime.system_time = xen_clocksource_read();
rc = HYPERVISOR_dom0_op(&op);
WARN(rc != 0, "XENPF_settime failed: now=%ld\n", now);
return rc;
}
static struct clocksource xen_clocksource __read_mostly = {
......
This diff is collapsed.
......@@ -492,6 +492,7 @@ struct dom0_vga_console_info {
/* These flags are passed in the 'flags' field of start_info_t. */
#define SIF_PRIVILEGED (1<<0) /* Is the domain privileged? */
#define SIF_INITDOMAIN (1<<1) /* Is this the initial control domain? */
#define SIF_PM_MASK (0xFF<<8) /* reserve 1 byte for xen-pm options */
typedef uint64_t cpumap_t;
......
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