blob: 0277942279ea2a82f3c9dd41ad3b5db94491ac23 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* KVM/MIPS: Interrupt delivery
*
* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
* Authors: Sanjay Lal <sanjayl@kymasys.com>
*/
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <linux/memblock.h>
#include <asm/page.h>
#include <asm/cacheflush.h>
#include <linux/kvm_host.h>
#include "interrupt.h"
void kvm_mips_deliver_interrupts(struct kvm_vcpu *vcpu, u32 cause)
{
unsigned long *pending = &vcpu->arch.pending_exceptions;
unsigned long *pending_clr = &vcpu->arch.pending_exceptions_clr;
unsigned int priority;
if (!(*pending) && !(*pending_clr))
return;
priority = __ffs(*pending_clr);
while (priority <= MIPS_EXC_MAX) {
kvm_mips_callbacks->irq_clear(vcpu, priority, cause);
priority = find_next_bit(pending_clr,
BITS_PER_BYTE * sizeof(*pending_clr),
priority + 1);
}
priority = __ffs(*pending);
while (priority <= MIPS_EXC_MAX) {
kvm_mips_callbacks->irq_deliver(vcpu, priority, cause);
priority = find_next_bit(pending,
BITS_PER_BYTE * sizeof(*pending),
priority + 1);
}
}
int kvm_mips_pending_timer(struct kvm_vcpu *vcpu)
{
return test_bit(MIPS_EXC_INT_TIMER, &vcpu->arch.pending_exceptions);
}
|
