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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/arm64/vmm/io/vgic_v3.h
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/*-

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright (C) 2015 Mihai Carabas <[email protected]>

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 * All rights reserved.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice, this list of conditions and the following disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 *

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 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND

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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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 * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE

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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

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 * SUCH DAMAGE.

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 */

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#ifndef _VMM_VGIC_V3_H_

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#define	_VMM_VGIC_V3_H_

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#define VGIC_ICH_LR_NUM_MAX	16

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#define	VGIC_ICH_APR_NUM_MAX	4

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/* Registers accessed by EL2 */

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struct vgic_v3_regs {

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	uint32_t	ich_eisr_el2;	/* End of Interrupt Status Register */

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	uint32_t	ich_elrsr_el2;	/* Empty List register Status Register (ICH_ELRSR_EL2) */

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	uint32_t	ich_hcr_el2;	/* Hyp Control Register */

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	uint32_t	ich_misr_el2;	/* Maintenance Interrupt State Register */

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	uint32_t	ich_vmcr_el2;	/* Virtual Machine Control Register */

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	/*

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	 * The List Registers are part of the VM context and are modified on a

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	 * world switch. They need to be allocated statically so they are

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	 * mapped in the EL2 translation tables when struct hypctx is mapped.

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	 */

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	uint64_t	ich_lr_el2[VGIC_ICH_LR_NUM_MAX];

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	uint16_t	ich_lr_num;

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	/* Active Priorities Registers for Group 0 and 1 interrupts */

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	uint16_t	ich_apr_num;

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	uint32_t	ich_ap0r_el2[VGIC_ICH_APR_NUM_MAX];

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	uint32_t	ich_ap1r_el2[VGIC_ICH_APR_NUM_MAX];

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};

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#endif /* !_VMM_VGIC_V3_H_ */

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