diff options
author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-08-01 14:42:05 -0400 |
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committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-08-01 14:42:05 -0400 |
commit | c6557e7f2b6ae76a44653d38f835174074c42e05 (patch) | |
tree | da619a76b309cb1cd259d082af768a83cfcd6d52 /arch/s390/include/asm/kvm_virtio.h | |
parent | ab4227cb2d936886069ef1056c02500d05beb15d (diff) |
[S390] move include/asm-s390 to arch/s390/include/asm
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/kvm_virtio.h')
-rw-r--r-- | arch/s390/include/asm/kvm_virtio.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/s390/include/asm/kvm_virtio.h b/arch/s390/include/asm/kvm_virtio.h new file mode 100644 index 000000000000..146100224def --- /dev/null +++ b/arch/s390/include/asm/kvm_virtio.h | |||
@@ -0,0 +1,63 @@ | |||
1 | /* | ||
2 | * kvm_virtio.h - definition for virtio for kvm on s390 | ||
3 | * | ||
4 | * Copyright IBM Corp. 2008 | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License (version 2 only) | ||
8 | * as published by the Free Software Foundation. | ||
9 | * | ||
10 | * Author(s): Christian Borntraeger <borntraeger@de.ibm.com> | ||
11 | */ | ||
12 | |||
13 | #ifndef __KVM_S390_VIRTIO_H | ||
14 | #define __KVM_S390_VIRTIO_H | ||
15 | |||
16 | #include <linux/types.h> | ||
17 | |||
18 | struct kvm_device_desc { | ||
19 | /* The device type: console, network, disk etc. Type 0 terminates. */ | ||
20 | __u8 type; | ||
21 | /* The number of virtqueues (first in config array) */ | ||
22 | __u8 num_vq; | ||
23 | /* | ||
24 | * The number of bytes of feature bits. Multiply by 2: one for host | ||
25 | * features and one for guest acknowledgements. | ||
26 | */ | ||
27 | __u8 feature_len; | ||
28 | /* The number of bytes of the config array after virtqueues. */ | ||
29 | __u8 config_len; | ||
30 | /* A status byte, written by the Guest. */ | ||
31 | __u8 status; | ||
32 | __u8 config[0]; | ||
33 | }; | ||
34 | |||
35 | /* | ||
36 | * This is how we expect the device configuration field for a virtqueue | ||
37 | * to be laid out in config space. | ||
38 | */ | ||
39 | struct kvm_vqconfig { | ||
40 | /* The token returned with an interrupt. Set by the guest */ | ||
41 | __u64 token; | ||
42 | /* The address of the virtio ring */ | ||
43 | __u64 address; | ||
44 | /* The number of entries in the virtio_ring */ | ||
45 | __u16 num; | ||
46 | |||
47 | }; | ||
48 | |||
49 | #define KVM_S390_VIRTIO_NOTIFY 0 | ||
50 | #define KVM_S390_VIRTIO_RESET 1 | ||
51 | #define KVM_S390_VIRTIO_SET_STATUS 2 | ||
52 | |||
53 | #ifdef __KERNEL__ | ||
54 | /* early virtio console setup */ | ||
55 | #ifdef CONFIG_VIRTIO_CONSOLE | ||
56 | extern void s390_virtio_console_init(void); | ||
57 | #else | ||
58 | static inline void s390_virtio_console_init(void) | ||
59 | { | ||
60 | } | ||
61 | #endif /* CONFIG_VIRTIO_CONSOLE */ | ||
62 | #endif /* __KERNEL__ */ | ||
63 | #endif | ||