xlnx-efuse.c (3b35d4542c8537a9269f6372df531ced6c960084) xlnx-efuse.c (a9262f551eba44d4d0f9e396d7124c059a93e204)
1/*
2 * QEMU model of the EFUSE eFuse
3 *
4 * Copyright (c) 2015 Xilinx Inc.
5 *
6 * Written by Edgar E. Iglesias <edgari@xilinx.com>
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy

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72 s->blk_ro = true;
73 }
74 }
75 if (s->blk_ro) {
76 warn_report("%s: Skip saving updates to read-only eFUSE backstore.",
77 blk_name(s->blk));
78 }
79
1/*
2 * QEMU model of the EFUSE eFuse
3 *
4 * Copyright (c) 2015 Xilinx Inc.
5 *
6 * Written by Edgar E. Iglesias <edgari@xilinx.com>
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy

--- 63 unchanged lines hidden (view full) ---

72 s->blk_ro = true;
73 }
74 }
75 if (s->blk_ro) {
76 warn_report("%s: Skip saving updates to read-only eFUSE backstore.",
77 blk_name(s->blk));
78 }
79
80 if (blk_pread(s->blk, 0, ram, nr, 0) < 0) {
80 if (blk_pread(s->blk, 0, nr, ram, 0) < 0) {
81 error_setg(errp, "%s: Failed to read %u bytes from eFUSE backstore.",
82 blk_name(s->blk), nr);
83 return -1;
84 }
85
86 /* Convert from little-endian backstore for each 32-bit row */
87 nr /= 4;
88 while (nr--) {

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100 if (!s->blk || s->blk_ro) {
101 return; /* Silent on read-only backend to avoid message flood */
102 }
103
104 /* Backstore is always in little-endian */
105 le32 = cpu_to_le32(xlnx_efuse_get_row(s, bit));
106
107 row_offset = (bit / 32) * 4;
81 error_setg(errp, "%s: Failed to read %u bytes from eFUSE backstore.",
82 blk_name(s->blk), nr);
83 return -1;
84 }
85
86 /* Convert from little-endian backstore for each 32-bit row */
87 nr /= 4;
88 while (nr--) {

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100 if (!s->blk || s->blk_ro) {
101 return; /* Silent on read-only backend to avoid message flood */
102 }
103
104 /* Backstore is always in little-endian */
105 le32 = cpu_to_le32(xlnx_efuse_get_row(s, bit));
106
107 row_offset = (bit / 32) * 4;
108 if (blk_pwrite(s->blk, row_offset, &le32, 4, 0) < 0) {
108 if (blk_pwrite(s->blk, row_offset, 4, &le32, 0) < 0) {
109 error_report("%s: Failed to write offset %u of eFUSE backstore.",
110 blk_name(s->blk), row_offset);
111 }
112}
113
114static int efuse_ro_bits_cmp(const void *a, const void *b)
115{
116 uint32_t i = *(const uint32_t *)a;

--- 167 unchanged lines hidden --- 		109 error_report("%s: Failed to write offset %u of eFUSE backstore.",
110 blk_name(s->blk), row_offset);
111 }
112}
113
114static int efuse_ro_bits_cmp(const void *a, const void *b)
115{
116 uint32_t i = *(const uint32_t *)a;

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