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arm64: KVM: user space interface 

Provide the kvm.h file that defines the user space visible
interface.

Reviewed-by: Christopher Covington <cov@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Marc Zyngier 2012-12-10 16:29:28 +00:00
parent 37c437532b
commit 54f81d0eb9
1 changed files with 117 additions and 0 deletions
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117
arch/arm64/include/uapi/asm/kvm.h Normal file
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/*
* Copyright (C) 2012,2013 - ARM Ltd
* Author: Marc Zyngier <marc.zyngier@arm.com>
*
* Derived from arch/arm/include/uapi/asm/kvm.h:
* Copyright (C) 2012 - Virtual Open Systems and Columbia University
* Author: Christoffer Dall <c.dall@virtualopensystems.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ARM_KVM_H__
#define __ARM_KVM_H__
#define KVM_SPSR_EL1 0
#define KVM_NR_SPSR 1
#ifndef __ASSEMBLY__
#include <asm/types.h>
#include <asm/ptrace.h>
#define __KVM_HAVE_GUEST_DEBUG
#define __KVM_HAVE_IRQ_LINE
#define KVM_REG_SIZE(id) \
(1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
struct kvm_regs {
struct user_pt_regs regs; /* sp = sp_el0 */
__u64 sp_el1;
__u64 elr_el1;
__u64 spsr[KVM_NR_SPSR];
struct user_fpsimd_state fp_regs;
};
/* Supported Processor Types */
#define KVM_ARM_TARGET_AEM_V8 0
#define KVM_ARM_TARGET_FOUNDATION_V8 1
#define KVM_ARM_TARGET_CORTEX_A57 2
#define KVM_ARM_NUM_TARGETS 3
/* KVM_ARM_SET_DEVICE_ADDR ioctl id encoding */
#define KVM_ARM_DEVICE_TYPE_SHIFT 0
#define KVM_ARM_DEVICE_TYPE_MASK (0xffff << KVM_ARM_DEVICE_TYPE_SHIFT)
#define KVM_ARM_DEVICE_ID_SHIFT 16
#define KVM_ARM_DEVICE_ID_MASK (0xffff << KVM_ARM_DEVICE_ID_SHIFT)
/* Supported device IDs */
#define KVM_ARM_DEVICE_VGIC_V2 0
/* Supported VGIC address types */
#define KVM_VGIC_V2_ADDR_TYPE_DIST 0
#define KVM_VGIC_V2_ADDR_TYPE_CPU 1
#define KVM_VGIC_V2_DIST_SIZE 0x1000
#define KVM_VGIC_V2_CPU_SIZE 0x2000
struct kvm_vcpu_init {
__u32 target;
__u32 features[7];
};
struct kvm_sregs {
};
struct kvm_fpu {
};
struct kvm_guest_debug_arch {
};
struct kvm_debug_exit_arch {
};
struct kvm_sync_regs {
};
struct kvm_arch_memory_slot {
};
/* KVM_IRQ_LINE irq field index values */
#define KVM_ARM_IRQ_TYPE_SHIFT 24
#define KVM_ARM_IRQ_TYPE_MASK 0xff
#define KVM_ARM_IRQ_VCPU_SHIFT 16
#define KVM_ARM_IRQ_VCPU_MASK 0xff
#define KVM_ARM_IRQ_NUM_SHIFT 0
#define KVM_ARM_IRQ_NUM_MASK 0xffff
/* irq_type field */
#define KVM_ARM_IRQ_TYPE_CPU 0
#define KVM_ARM_IRQ_TYPE_SPI 1
#define KVM_ARM_IRQ_TYPE_PPI 2
/* out-of-kernel GIC cpu interrupt injection irq_number field */
#define KVM_ARM_IRQ_CPU_IRQ 0
#define KVM_ARM_IRQ_CPU_FIQ 1
/* Highest supported SPI, from VGIC_NR_IRQS */
#define KVM_ARM_IRQ_GIC_MAX 127
#endif
#endif /* __ARM_KVM_H__ */