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- /*
- * 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 <[email protected]>
- */
- #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);
- }
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