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x86: apic_ops for lguest
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apic_ops for lguest.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Suresh Siddha authored and Ingo Molnar committed Jul 18, 2008
1 parent 9a8f0e6 commit 511d9d3
Showing 1 changed file with 32 additions and 3 deletions.
35 changes: 32 additions & 3 deletions arch/x86/lguest/boot.c
Original file line number Diff line number Diff line change
Expand Up @@ -791,6 +791,37 @@ static u32 lguest_apic_read(u32 reg)
{
return 0;
}

static u64 lguest_apic_icr_read(void)
{
return 0;
}

static void lguest_apic_icr_write(u32 low, u32 id)
{
/* Warn to see if there's any stray references */
WARN_ON(1);
}

static void lguest_apic_wait_icr_idle(void)
{
return;
}

static u32 lguest_apic_safe_wait_icr_idle(void)
{
return 0;
}

static struct apic_ops lguest_basic_apic_ops = {
.read = lguest_apic_read,
.write = lguest_apic_write,
.write_atomic = lguest_apic_write,
.icr_read = lguest_apic_icr_read,
.icr_write = lguest_apic_icr_write,
.wait_icr_idle = lguest_apic_wait_icr_idle,
.safe_wait_icr_idle = lguest_apic_safe_wait_icr_idle,
};
#endif

/* STOP! Until an interrupt comes in. */
Expand Down Expand Up @@ -990,9 +1021,7 @@ __init void lguest_init(void)

#ifdef CONFIG_X86_LOCAL_APIC
/* apic read/write intercepts */
pv_apic_ops.apic_write = lguest_apic_write;
pv_apic_ops.apic_write_atomic = lguest_apic_write;
pv_apic_ops.apic_read = lguest_apic_read;
apic_ops = &lguest_basic_apic_ops;
#endif

/* time operations */
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