Revision c8cda874
| b/pc-bios/s390-ccw/cio.h | ||
|---|---|---|
| 93 | 93 |
__u32 sch_no : 16; |
| 94 | 94 |
} __attribute__ ((packed, aligned(4))); |
| 95 | 95 |
|
| 96 |
struct chsc_header {
|
|
| 97 |
__u16 length; |
|
| 98 |
__u16 code; |
|
| 99 |
} __attribute__((packed)); |
|
| 100 |
|
|
| 101 |
struct chsc_area_sda {
|
|
| 102 |
struct chsc_header request; |
|
| 103 |
__u8 reserved1:4; |
|
| 104 |
__u8 format:4; |
|
| 105 |
__u8 reserved2; |
|
| 106 |
__u16 operation_code; |
|
| 107 |
__u32 reserved3; |
|
| 108 |
__u32 reserved4; |
|
| 109 |
__u32 operation_data_area[252]; |
|
| 110 |
struct chsc_header response; |
|
| 111 |
__u32 reserved5:4; |
|
| 112 |
__u32 format2:4; |
|
| 113 |
__u32 reserved6:24; |
|
| 114 |
} __attribute__((packed)); |
|
| 115 |
|
|
| 96 | 116 |
/* |
| 97 | 117 |
* TPI info structure |
| 98 | 118 |
*/ |
| b/pc-bios/s390-ccw/main.c | ||
|---|---|---|
| 35 | 35 |
check_devno = true; |
| 36 | 36 |
dev_no = dev_info & 0xffff; |
| 37 | 37 |
debug_print_int("device no. ", dev_no);
|
| 38 |
blk_schid.ssid = (dev_info >> 16) & 0x3; |
|
| 39 |
if (blk_schid.ssid != 0) {
|
|
| 40 |
debug_print_int("ssid ", blk_schid.ssid);
|
|
| 41 |
if (enable_mss_facility() != 0) {
|
|
| 42 |
virtio_panic("Failed to enable mss facility\n");
|
|
| 43 |
} |
|
| 44 |
} |
|
| 38 | 45 |
} |
| 39 | 46 |
|
| 40 | 47 |
for (i = 0; i < 0x10000; i++) {
|
| b/pc-bios/s390-ccw/s390-ccw.h | ||
|---|---|---|
| 61 | 61 |
bool virtio_is_blk(struct subchannel_id schid); |
| 62 | 62 |
void virtio_setup_block(struct subchannel_id schid); |
| 63 | 63 |
int virtio_read(ulong sector, void *load_addr); |
| 64 |
int enable_mss_facility(void); |
|
| 64 | 65 |
|
| 65 | 66 |
/* bootmap.c */ |
| 66 | 67 |
int zipl_load(void); |
| b/pc-bios/s390-ccw/virtio.c | ||
|---|---|---|
| 13 | 13 |
|
| 14 | 14 |
struct vring block; |
| 15 | 15 |
|
| 16 |
static char chsc_page[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE))); |
|
| 17 |
|
|
| 16 | 18 |
static long kvm_hypercall(unsigned long nr, unsigned long param1, |
| 17 | 19 |
unsigned long param2) |
| 18 | 20 |
{
|
| ... | ... | |
| 301 | 303 |
return true; |
| 302 | 304 |
} |
| 303 | 305 |
|
| 306 |
int enable_mss_facility(void) |
|
| 307 |
{
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|
| 308 |
int ret; |
|
| 309 |
struct chsc_area_sda *sda_area = (struct chsc_area_sda *) chsc_page; |
|
| 310 |
|
|
| 311 |
memset(sda_area, 0, PAGE_SIZE); |
|
| 312 |
sda_area->request.length = 0x0400; |
|
| 313 |
sda_area->request.code = 0x0031; |
|
| 314 |
sda_area->operation_code = 0x2; |
|
| 315 |
|
|
| 316 |
ret = chsc(sda_area); |
|
| 317 |
if ((ret == 0) && (sda_area->response.code == 0x0001)) {
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|
| 318 |
return 0; |
|
| 319 |
} |
|
| 320 |
return -EIO; |
|
| 321 |
} |
|
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