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f6ad2e32 AG |
1 | /* |
2 | * QEMU AHCI Emulation | |
3 | * | |
4 | * Copyright (c) 2010 qiaochong@loongson.cn | |
5 | * Copyright (c) 2010 Roland Elek <elek.roland@gmail.com> | |
6 | * Copyright (c) 2010 Sebastian Herbszt <herbszt@gmx.de> | |
7 | * Copyright (c) 2010 Alexander Graf <agraf@suse.de> | |
8 | * | |
9 | * This library is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU Lesser General Public | |
11 | * License as published by the Free Software Foundation; either | |
12 | * version 2 of the License, or (at your option) any later version. | |
13 | * | |
14 | * This library is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * Lesser General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU Lesser General Public | |
20 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
21 | * | |
f6ad2e32 AG |
22 | */ |
23 | ||
53239262 | 24 | #include "qemu/osdep.h" |
a9c94277 MA |
25 | #include "hw/hw.h" |
26 | #include "hw/pci/msi.h" | |
a9c94277 | 27 | #include "hw/pci/pci.h" |
f6ad2e32 | 28 | |
d49b6836 | 29 | #include "qemu/error-report.h" |
06e35065 | 30 | #include "qemu/log.h" |
4be74634 | 31 | #include "sysemu/block-backend.h" |
9c17d615 | 32 | #include "sysemu/dma.h" |
a9c94277 MA |
33 | #include "hw/ide/internal.h" |
34 | #include "hw/ide/pci.h" | |
9314b859 | 35 | #include "ahci_internal.h" |
f6ad2e32 | 36 | |
e4baa9f0 | 37 | #include "trace.h" |
f6ad2e32 | 38 | |
f6ad2e32 | 39 | static void check_cmd(AHCIState *s, int port); |
9364384d | 40 | static int handle_cmd(AHCIState *s, int port, uint8_t slot); |
f6ad2e32 | 41 | static void ahci_reset_port(AHCIState *s, int port); |
e47f9eb1 | 42 | static bool ahci_write_fis_d2h(AHCIDevice *ad); |
87e62065 | 43 | static void ahci_init_d2h(AHCIDevice *ad); |
a718978e | 44 | static int ahci_dma_prepare_buf(IDEDMA *dma, int32_t limit); |
a13ab5a3 JS |
45 | static bool ahci_map_clb_address(AHCIDevice *ad); |
46 | static bool ahci_map_fis_address(AHCIDevice *ad); | |
fc3d8e11 JS |
47 | static void ahci_unmap_clb_address(AHCIDevice *ad); |
48 | static void ahci_unmap_fis_address(AHCIDevice *ad); | |
659142ec | 49 | |
da868a46 JS |
50 | __attribute__((__unused__)) /* TODO */ |
51 | static const char *AHCIHostReg_lookup[AHCI_HOST_REG__COUNT] = { | |
52 | [AHCI_HOST_REG_CAP] = "CAP", | |
53 | [AHCI_HOST_REG_CTL] = "GHC", | |
54 | [AHCI_HOST_REG_IRQ_STAT] = "IS", | |
55 | [AHCI_HOST_REG_PORTS_IMPL] = "PI", | |
56 | [AHCI_HOST_REG_VERSION] = "VS", | |
57 | [AHCI_HOST_REG_CCC_CTL] = "CCC_CTL", | |
58 | [AHCI_HOST_REG_CCC_PORTS] = "CCC_PORTS", | |
59 | [AHCI_HOST_REG_EM_LOC] = "EM_LOC", | |
60 | [AHCI_HOST_REG_EM_CTL] = "EM_CTL", | |
61 | [AHCI_HOST_REG_CAP2] = "CAP2", | |
62 | [AHCI_HOST_REG_BOHC] = "BOHC", | |
63 | }; | |
64 | ||
4e6e1de4 JS |
65 | static const char *AHCIPortReg_lookup[AHCI_PORT_REG__COUNT] = { |
66 | [AHCI_PORT_REG_LST_ADDR] = "PxCLB", | |
67 | [AHCI_PORT_REG_LST_ADDR_HI] = "PxCLBU", | |
68 | [AHCI_PORT_REG_FIS_ADDR] = "PxFB", | |
69 | [AHCI_PORT_REG_FIS_ADDR_HI] = "PxFBU", | |
70 | [AHCI_PORT_REG_IRQ_STAT] = "PxIS", | |
71 | [AHCI_PORT_REG_IRQ_MASK] = "PXIE", | |
72 | [AHCI_PORT_REG_CMD] = "PxCMD", | |
73 | [7] = "Reserved", | |
74 | [AHCI_PORT_REG_TFDATA] = "PxTFD", | |
75 | [AHCI_PORT_REG_SIG] = "PxSIG", | |
76 | [AHCI_PORT_REG_SCR_STAT] = "PxSSTS", | |
77 | [AHCI_PORT_REG_SCR_CTL] = "PxSCTL", | |
78 | [AHCI_PORT_REG_SCR_ERR] = "PxSERR", | |
79 | [AHCI_PORT_REG_SCR_ACT] = "PxSACT", | |
80 | [AHCI_PORT_REG_CMD_ISSUE] = "PxCI", | |
81 | [AHCI_PORT_REG_SCR_NOTIF] = "PxSNTF", | |
82 | [AHCI_PORT_REG_FIS_CTL] = "PxFBS", | |
83 | [AHCI_PORT_REG_DEV_SLEEP] = "PxDEVSLP", | |
84 | [18 ... 27] = "Reserved", | |
85 | [AHCI_PORT_REG_VENDOR_1 ... | |
86 | AHCI_PORT_REG_VENDOR_4] = "PxVS", | |
87 | }; | |
88 | ||
5fa0feec JS |
89 | static const char *AHCIPortIRQ_lookup[AHCI_PORT_IRQ__COUNT] = { |
90 | [AHCI_PORT_IRQ_BIT_DHRS] = "DHRS", | |
91 | [AHCI_PORT_IRQ_BIT_PSS] = "PSS", | |
92 | [AHCI_PORT_IRQ_BIT_DSS] = "DSS", | |
93 | [AHCI_PORT_IRQ_BIT_SDBS] = "SDBS", | |
94 | [AHCI_PORT_IRQ_BIT_UFS] = "UFS", | |
95 | [AHCI_PORT_IRQ_BIT_DPS] = "DPS", | |
96 | [AHCI_PORT_IRQ_BIT_PCS] = "PCS", | |
97 | [AHCI_PORT_IRQ_BIT_DMPS] = "DMPS", | |
98 | [8 ... 21] = "RESERVED", | |
99 | [AHCI_PORT_IRQ_BIT_PRCS] = "PRCS", | |
100 | [AHCI_PORT_IRQ_BIT_IPMS] = "IPMS", | |
101 | [AHCI_PORT_IRQ_BIT_OFS] = "OFS", | |
102 | [25] = "RESERVED", | |
103 | [AHCI_PORT_IRQ_BIT_INFS] = "INFS", | |
104 | [AHCI_PORT_IRQ_BIT_IFS] = "IFS", | |
105 | [AHCI_PORT_IRQ_BIT_HBDS] = "HBDS", | |
106 | [AHCI_PORT_IRQ_BIT_HBFS] = "HBFS", | |
107 | [AHCI_PORT_IRQ_BIT_TFES] = "TFES", | |
108 | [AHCI_PORT_IRQ_BIT_CPDS] = "CPDS" | |
109 | }; | |
f6ad2e32 | 110 | |
536551d7 | 111 | static uint32_t ahci_port_read(AHCIState *s, int port, int offset) |
f6ad2e32 AG |
112 | { |
113 | uint32_t val; | |
536551d7 JS |
114 | AHCIPortRegs *pr = &s->dev[port].port_regs; |
115 | enum AHCIPortReg regnum = offset / sizeof(uint32_t); | |
116 | assert(regnum < (AHCI_PORT_ADDR_OFFSET_LEN / sizeof(uint32_t))); | |
f6ad2e32 | 117 | |
536551d7 JS |
118 | switch (regnum) { |
119 | case AHCI_PORT_REG_LST_ADDR: | |
f6ad2e32 AG |
120 | val = pr->lst_addr; |
121 | break; | |
536551d7 | 122 | case AHCI_PORT_REG_LST_ADDR_HI: |
f6ad2e32 AG |
123 | val = pr->lst_addr_hi; |
124 | break; | |
536551d7 | 125 | case AHCI_PORT_REG_FIS_ADDR: |
f6ad2e32 AG |
126 | val = pr->fis_addr; |
127 | break; | |
536551d7 | 128 | case AHCI_PORT_REG_FIS_ADDR_HI: |
f6ad2e32 AG |
129 | val = pr->fis_addr_hi; |
130 | break; | |
536551d7 | 131 | case AHCI_PORT_REG_IRQ_STAT: |
f6ad2e32 AG |
132 | val = pr->irq_stat; |
133 | break; | |
536551d7 | 134 | case AHCI_PORT_REG_IRQ_MASK: |
f6ad2e32 AG |
135 | val = pr->irq_mask; |
136 | break; | |
536551d7 | 137 | case AHCI_PORT_REG_CMD: |
f6ad2e32 AG |
138 | val = pr->cmd; |
139 | break; | |
536551d7 | 140 | case AHCI_PORT_REG_TFDATA: |
fac7aa7f | 141 | val = pr->tfdata; |
f6ad2e32 | 142 | break; |
536551d7 | 143 | case AHCI_PORT_REG_SIG: |
f6ad2e32 AG |
144 | val = pr->sig; |
145 | break; | |
536551d7 | 146 | case AHCI_PORT_REG_SCR_STAT: |
4be74634 | 147 | if (s->dev[port].port.ifs[0].blk) { |
f6ad2e32 AG |
148 | val = SATA_SCR_SSTATUS_DET_DEV_PRESENT_PHY_UP | |
149 | SATA_SCR_SSTATUS_SPD_GEN1 | SATA_SCR_SSTATUS_IPM_ACTIVE; | |
150 | } else { | |
151 | val = SATA_SCR_SSTATUS_DET_NODEV; | |
152 | } | |
153 | break; | |
536551d7 | 154 | case AHCI_PORT_REG_SCR_CTL: |
f6ad2e32 AG |
155 | val = pr->scr_ctl; |
156 | break; | |
536551d7 | 157 | case AHCI_PORT_REG_SCR_ERR: |
f6ad2e32 AG |
158 | val = pr->scr_err; |
159 | break; | |
536551d7 | 160 | case AHCI_PORT_REG_SCR_ACT: |
f6ad2e32 AG |
161 | val = pr->scr_act; |
162 | break; | |
536551d7 | 163 | case AHCI_PORT_REG_CMD_ISSUE: |
f6ad2e32 AG |
164 | val = pr->cmd_issue; |
165 | break; | |
f6ad2e32 | 166 | default: |
e5389163 JS |
167 | trace_ahci_port_read_default(s, port, AHCIPortReg_lookup[regnum], |
168 | offset); | |
f6ad2e32 AG |
169 | val = 0; |
170 | } | |
f6ad2e32 | 171 | |
e5389163 | 172 | trace_ahci_port_read(s, port, AHCIPortReg_lookup[regnum], offset, val); |
e4baa9f0 | 173 | return val; |
f6ad2e32 AG |
174 | } |
175 | ||
dc5a43ed | 176 | static void ahci_irq_raise(AHCIState *s) |
f6ad2e32 | 177 | { |
bb639f82 AF |
178 | DeviceState *dev_state = s->container; |
179 | PCIDevice *pci_dev = (PCIDevice *) object_dynamic_cast(OBJECT(dev_state), | |
180 | TYPE_PCI_DEVICE); | |
f6ad2e32 | 181 | |
e4baa9f0 | 182 | trace_ahci_irq_raise(s); |
f6ad2e32 | 183 | |
bd164307 | 184 | if (pci_dev && msi_enabled(pci_dev)) { |
0d3aea56 | 185 | msi_notify(pci_dev, 0); |
f6ad2e32 AG |
186 | } else { |
187 | qemu_irq_raise(s->irq); | |
188 | } | |
189 | } | |
190 | ||
dc5a43ed | 191 | static void ahci_irq_lower(AHCIState *s) |
f6ad2e32 | 192 | { |
bb639f82 AF |
193 | DeviceState *dev_state = s->container; |
194 | PCIDevice *pci_dev = (PCIDevice *) object_dynamic_cast(OBJECT(dev_state), | |
195 | TYPE_PCI_DEVICE); | |
f6ad2e32 | 196 | |
e4baa9f0 | 197 | trace_ahci_irq_lower(s); |
f6ad2e32 | 198 | |
bd164307 | 199 | if (!pci_dev || !msi_enabled(pci_dev)) { |
f6ad2e32 AG |
200 | qemu_irq_lower(s->irq); |
201 | } | |
202 | } | |
203 | ||
204 | static void ahci_check_irq(AHCIState *s) | |
205 | { | |
206 | int i; | |
e4baa9f0 | 207 | uint32_t old_irq = s->control_regs.irqstatus; |
f6ad2e32 | 208 | |
b8676728 | 209 | s->control_regs.irqstatus = 0; |
2c4b9d0e | 210 | for (i = 0; i < s->ports; i++) { |
f6ad2e32 AG |
211 | AHCIPortRegs *pr = &s->dev[i].port_regs; |
212 | if (pr->irq_stat & pr->irq_mask) { | |
213 | s->control_regs.irqstatus |= (1 << i); | |
214 | } | |
215 | } | |
e4baa9f0 | 216 | trace_ahci_check_irq(s, old_irq, s->control_regs.irqstatus); |
f6ad2e32 AG |
217 | if (s->control_regs.irqstatus && |
218 | (s->control_regs.ghc & HOST_CTL_IRQ_EN)) { | |
dc5a43ed | 219 | ahci_irq_raise(s); |
f6ad2e32 | 220 | } else { |
dc5a43ed | 221 | ahci_irq_lower(s); |
f6ad2e32 AG |
222 | } |
223 | } | |
224 | ||
225 | static void ahci_trigger_irq(AHCIState *s, AHCIDevice *d, | |
5fa0feec | 226 | enum AHCIPortIRQ irqbit) |
f6ad2e32 | 227 | { |
159a9df0 | 228 | g_assert((unsigned)irqbit < 32); |
5fa0feec JS |
229 | uint32_t irq = 1U << irqbit; |
230 | uint32_t irqstat = d->port_regs.irq_stat | irq; | |
231 | ||
232 | trace_ahci_trigger_irq(s, d->port_no, | |
233 | AHCIPortIRQ_lookup[irqbit], irq, | |
234 | d->port_regs.irq_stat, irqstat, | |
235 | irqstat & d->port_regs.irq_mask); | |
f6ad2e32 | 236 | |
5fa0feec | 237 | d->port_regs.irq_stat = irqstat; |
f6ad2e32 AG |
238 | ahci_check_irq(s); |
239 | } | |
240 | ||
5a18e67d LT |
241 | static void map_page(AddressSpace *as, uint8_t **ptr, uint64_t addr, |
242 | uint32_t wanted) | |
f6ad2e32 | 243 | { |
a8170e5e | 244 | hwaddr len = wanted; |
f6ad2e32 AG |
245 | |
246 | if (*ptr) { | |
5a18e67d | 247 | dma_memory_unmap(as, *ptr, len, DMA_DIRECTION_FROM_DEVICE, len); |
f6ad2e32 AG |
248 | } |
249 | ||
5a18e67d | 250 | *ptr = dma_memory_map(as, addr, &len, DMA_DIRECTION_FROM_DEVICE); |
f6ad2e32 | 251 | if (len < wanted) { |
5a18e67d | 252 | dma_memory_unmap(as, *ptr, len, DMA_DIRECTION_FROM_DEVICE, len); |
f6ad2e32 AG |
253 | *ptr = NULL; |
254 | } | |
255 | } | |
256 | ||
cd6cb73b JS |
257 | /** |
258 | * Check the cmd register to see if we should start or stop | |
259 | * the DMA or FIS RX engines. | |
260 | * | |
d5904749 | 261 | * @ad: Device to dis/engage. |
cd6cb73b JS |
262 | * |
263 | * @return 0 on success, -1 on error. | |
264 | */ | |
d5904749 | 265 | static int ahci_cond_start_engines(AHCIDevice *ad) |
cd6cb73b JS |
266 | { |
267 | AHCIPortRegs *pr = &ad->port_regs; | |
d5904749 JS |
268 | bool cmd_start = pr->cmd & PORT_CMD_START; |
269 | bool cmd_on = pr->cmd & PORT_CMD_LIST_ON; | |
270 | bool fis_start = pr->cmd & PORT_CMD_FIS_RX; | |
271 | bool fis_on = pr->cmd & PORT_CMD_FIS_ON; | |
cd6cb73b | 272 | |
d5904749 | 273 | if (cmd_start && !cmd_on) { |
f32a2f33 | 274 | if (!ahci_map_clb_address(ad)) { |
d5904749 | 275 | pr->cmd &= ~PORT_CMD_START; |
cd6cb73b JS |
276 | error_report("AHCI: Failed to start DMA engine: " |
277 | "bad command list buffer address"); | |
278 | return -1; | |
279 | } | |
d5904749 JS |
280 | } else if (!cmd_start && cmd_on) { |
281 | ahci_unmap_clb_address(ad); | |
cd6cb73b JS |
282 | } |
283 | ||
d5904749 | 284 | if (fis_start && !fis_on) { |
f32a2f33 | 285 | if (!ahci_map_fis_address(ad)) { |
d5904749 | 286 | pr->cmd &= ~PORT_CMD_FIS_RX; |
cd6cb73b JS |
287 | error_report("AHCI: Failed to start FIS receive engine: " |
288 | "bad FIS receive buffer address"); | |
289 | return -1; | |
290 | } | |
d5904749 JS |
291 | } else if (!fis_start && fis_on) { |
292 | ahci_unmap_fis_address(ad); | |
cd6cb73b JS |
293 | } |
294 | ||
295 | return 0; | |
296 | } | |
297 | ||
f1123e4b | 298 | static void ahci_port_write(AHCIState *s, int port, int offset, uint32_t val) |
f6ad2e32 AG |
299 | { |
300 | AHCIPortRegs *pr = &s->dev[port].port_regs; | |
f647f458 JS |
301 | enum AHCIPortReg regnum = offset / sizeof(uint32_t); |
302 | assert(regnum < (AHCI_PORT_ADDR_OFFSET_LEN / sizeof(uint32_t))); | |
06e35065 | 303 | trace_ahci_port_write(s, port, AHCIPortReg_lookup[regnum], offset, val); |
f6ad2e32 | 304 | |
f647f458 JS |
305 | switch (regnum) { |
306 | case AHCI_PORT_REG_LST_ADDR: | |
f1123e4b JS |
307 | pr->lst_addr = val; |
308 | break; | |
f647f458 | 309 | case AHCI_PORT_REG_LST_ADDR_HI: |
f1123e4b JS |
310 | pr->lst_addr_hi = val; |
311 | break; | |
f647f458 | 312 | case AHCI_PORT_REG_FIS_ADDR: |
f1123e4b JS |
313 | pr->fis_addr = val; |
314 | break; | |
f647f458 | 315 | case AHCI_PORT_REG_FIS_ADDR_HI: |
f1123e4b JS |
316 | pr->fis_addr_hi = val; |
317 | break; | |
f647f458 | 318 | case AHCI_PORT_REG_IRQ_STAT: |
f1123e4b JS |
319 | pr->irq_stat &= ~val; |
320 | ahci_check_irq(s); | |
321 | break; | |
f647f458 | 322 | case AHCI_PORT_REG_IRQ_MASK: |
f1123e4b JS |
323 | pr->irq_mask = val & 0xfdc000ff; |
324 | ahci_check_irq(s); | |
325 | break; | |
f647f458 | 326 | case AHCI_PORT_REG_CMD: |
f1123e4b JS |
327 | /* Block any Read-only fields from being set; |
328 | * including LIST_ON and FIS_ON. | |
329 | * The spec requires to set ICC bits to zero after the ICC change | |
330 | * is done. We don't support ICC state changes, therefore always | |
331 | * force the ICC bits to zero. | |
332 | */ | |
333 | pr->cmd = (pr->cmd & PORT_CMD_RO_MASK) | | |
334 | (val & ~(PORT_CMD_RO_MASK | PORT_CMD_ICC_MASK)); | |
335 | ||
336 | /* Check FIS RX and CLB engines */ | |
337 | ahci_cond_start_engines(&s->dev[port]); | |
338 | ||
339 | /* XXX usually the FIS would be pending on the bus here and | |
340 | issuing deferred until the OS enables FIS receival. | |
341 | Instead, we only submit it once - which works in most | |
342 | cases, but is a hack. */ | |
343 | if ((pr->cmd & PORT_CMD_FIS_ON) && | |
344 | !s->dev[port].init_d2h_sent) { | |
345 | ahci_init_d2h(&s->dev[port]); | |
346 | } | |
347 | ||
348 | check_cmd(s, port); | |
349 | break; | |
f647f458 JS |
350 | case AHCI_PORT_REG_TFDATA: |
351 | case AHCI_PORT_REG_SIG: | |
352 | case AHCI_PORT_REG_SCR_STAT: | |
f1123e4b JS |
353 | /* Read Only */ |
354 | break; | |
f647f458 | 355 | case AHCI_PORT_REG_SCR_CTL: |
f1123e4b JS |
356 | if (((pr->scr_ctl & AHCI_SCR_SCTL_DET) == 1) && |
357 | ((val & AHCI_SCR_SCTL_DET) == 0)) { | |
358 | ahci_reset_port(s, port); | |
359 | } | |
360 | pr->scr_ctl = val; | |
361 | break; | |
f647f458 | 362 | case AHCI_PORT_REG_SCR_ERR: |
f1123e4b JS |
363 | pr->scr_err &= ~val; |
364 | break; | |
f647f458 | 365 | case AHCI_PORT_REG_SCR_ACT: |
f1123e4b JS |
366 | /* RW1 */ |
367 | pr->scr_act |= val; | |
368 | break; | |
f647f458 | 369 | case AHCI_PORT_REG_CMD_ISSUE: |
f1123e4b JS |
370 | pr->cmd_issue |= val; |
371 | check_cmd(s, port); | |
372 | break; | |
373 | default: | |
06e35065 JS |
374 | trace_ahci_port_write_unimpl(s, port, AHCIPortReg_lookup[regnum], |
375 | offset, val); | |
376 | qemu_log_mask(LOG_UNIMP, "Attempted write to unimplemented register: " | |
377 | "AHCI port %d register %s, offset 0x%x: 0x%"PRIx32, | |
378 | port, AHCIPortReg_lookup[regnum], offset, val); | |
f1123e4b | 379 | break; |
f6ad2e32 AG |
380 | } |
381 | } | |
382 | ||
e9ebb2f7 | 383 | static uint64_t ahci_mem_read_32(void *opaque, hwaddr addr) |
f6ad2e32 | 384 | { |
67e576c2 | 385 | AHCIState *s = opaque; |
f6ad2e32 AG |
386 | uint32_t val = 0; |
387 | ||
f6ad2e32 | 388 | if (addr < AHCI_GENERIC_HOST_CONTROL_REGS_MAX_ADDR) { |
215c41aa JS |
389 | enum AHCIHostReg regnum = addr / 4; |
390 | assert(regnum < AHCI_HOST_REG__COUNT); | |
391 | ||
392 | switch (regnum) { | |
393 | case AHCI_HOST_REG_CAP: | |
f6ad2e32 AG |
394 | val = s->control_regs.cap; |
395 | break; | |
215c41aa | 396 | case AHCI_HOST_REG_CTL: |
f6ad2e32 AG |
397 | val = s->control_regs.ghc; |
398 | break; | |
215c41aa | 399 | case AHCI_HOST_REG_IRQ_STAT: |
f6ad2e32 AG |
400 | val = s->control_regs.irqstatus; |
401 | break; | |
215c41aa | 402 | case AHCI_HOST_REG_PORTS_IMPL: |
f6ad2e32 AG |
403 | val = s->control_regs.impl; |
404 | break; | |
215c41aa | 405 | case AHCI_HOST_REG_VERSION: |
f6ad2e32 AG |
406 | val = s->control_regs.version; |
407 | break; | |
215c41aa JS |
408 | default: |
409 | break; | |
f6ad2e32 | 410 | } |
f6ad2e32 | 411 | } else if ((addr >= AHCI_PORT_REGS_START_ADDR) && |
2c4b9d0e AG |
412 | (addr < (AHCI_PORT_REGS_START_ADDR + |
413 | (s->ports * AHCI_PORT_ADDR_OFFSET_LEN)))) { | |
f6ad2e32 AG |
414 | val = ahci_port_read(s, (addr - AHCI_PORT_REGS_START_ADDR) >> 7, |
415 | addr & AHCI_PORT_ADDR_OFFSET_MASK); | |
416 | } | |
417 | ||
e4baa9f0 | 418 | trace_ahci_mem_read_32(s, addr, val); |
f6ad2e32 AG |
419 | return val; |
420 | } | |
421 | ||
422 | ||
e9ebb2f7 JS |
423 | /** |
424 | * AHCI 1.3 section 3 ("HBA Memory Registers") | |
425 | * Support unaligned 8/16/32 bit reads, and 64 bit aligned reads. | |
426 | * Caller is responsible for masking unwanted higher order bytes. | |
427 | */ | |
428 | static uint64_t ahci_mem_read(void *opaque, hwaddr addr, unsigned size) | |
429 | { | |
430 | hwaddr aligned = addr & ~0x3; | |
431 | int ofst = addr - aligned; | |
432 | uint64_t lo = ahci_mem_read_32(opaque, aligned); | |
433 | uint64_t hi; | |
80274267 | 434 | uint64_t val; |
e9ebb2f7 JS |
435 | |
436 | /* if < 8 byte read does not cross 4 byte boundary */ | |
437 | if (ofst + size <= 4) { | |
80274267 PC |
438 | val = lo >> (ofst * 8); |
439 | } else { | |
440 | g_assert_cmpint(size, >, 1); | |
441 | ||
442 | /* If the 64bit read is unaligned, we will produce undefined | |
443 | * results. AHCI does not support unaligned 64bit reads. */ | |
444 | hi = ahci_mem_read_32(opaque, aligned + 4); | |
445 | val = (hi << 32 | lo) >> (ofst * 8); | |
e9ebb2f7 | 446 | } |
e9ebb2f7 | 447 | |
e4baa9f0 | 448 | trace_ahci_mem_read(opaque, size, addr, val); |
80274267 | 449 | return val; |
e9ebb2f7 JS |
450 | } |
451 | ||
f6ad2e32 | 452 | |
a8170e5e | 453 | static void ahci_mem_write(void *opaque, hwaddr addr, |
67e576c2 | 454 | uint64_t val, unsigned size) |
f6ad2e32 | 455 | { |
67e576c2 | 456 | AHCIState *s = opaque; |
f6ad2e32 | 457 | |
e4baa9f0 | 458 | trace_ahci_mem_write(s, size, addr, val); |
80274267 | 459 | |
f6ad2e32 AG |
460 | /* Only aligned reads are allowed on AHCI */ |
461 | if (addr & 3) { | |
462 | fprintf(stderr, "ahci: Mis-aligned write to addr 0x" | |
463 | TARGET_FMT_plx "\n", addr); | |
464 | return; | |
465 | } | |
466 | ||
467 | if (addr < AHCI_GENERIC_HOST_CONTROL_REGS_MAX_ADDR) { | |
f6ad2e32 AG |
468 | switch (addr) { |
469 | case HOST_CAP: /* R/WO, RO */ | |
470 | /* FIXME handle R/WO */ | |
471 | break; | |
472 | case HOST_CTL: /* R/W */ | |
473 | if (val & HOST_CTL_RESET) { | |
8ab60a07 | 474 | ahci_reset(s); |
f6ad2e32 AG |
475 | } else { |
476 | s->control_regs.ghc = (val & 0x3) | HOST_CTL_AHCI_EN; | |
477 | ahci_check_irq(s); | |
478 | } | |
479 | break; | |
480 | case HOST_IRQ_STAT: /* R/WC, RO */ | |
481 | s->control_regs.irqstatus &= ~val; | |
482 | ahci_check_irq(s); | |
483 | break; | |
484 | case HOST_PORTS_IMPL: /* R/WO, RO */ | |
485 | /* FIXME handle R/WO */ | |
486 | break; | |
487 | case HOST_VERSION: /* RO */ | |
488 | /* FIXME report write? */ | |
489 | break; | |
490 | default: | |
e4baa9f0 | 491 | trace_ahci_mem_write_unknown(s, size, addr, val); |
f6ad2e32 AG |
492 | } |
493 | } else if ((addr >= AHCI_PORT_REGS_START_ADDR) && | |
2c4b9d0e AG |
494 | (addr < (AHCI_PORT_REGS_START_ADDR + |
495 | (s->ports * AHCI_PORT_ADDR_OFFSET_LEN)))) { | |
f6ad2e32 AG |
496 | ahci_port_write(s, (addr - AHCI_PORT_REGS_START_ADDR) >> 7, |
497 | addr & AHCI_PORT_ADDR_OFFSET_MASK, val); | |
498 | } | |
499 | ||
500 | } | |
501 | ||
a348f108 | 502 | static const MemoryRegionOps ahci_mem_ops = { |
67e576c2 AK |
503 | .read = ahci_mem_read, |
504 | .write = ahci_mem_write, | |
505 | .endianness = DEVICE_LITTLE_ENDIAN, | |
f6ad2e32 AG |
506 | }; |
507 | ||
a8170e5e | 508 | static uint64_t ahci_idp_read(void *opaque, hwaddr addr, |
465f1ab1 DV |
509 | unsigned size) |
510 | { | |
511 | AHCIState *s = opaque; | |
512 | ||
513 | if (addr == s->idp_offset) { | |
514 | /* index register */ | |
515 | return s->idp_index; | |
516 | } else if (addr == s->idp_offset + 4) { | |
517 | /* data register - do memory read at location selected by index */ | |
518 | return ahci_mem_read(opaque, s->idp_index, size); | |
519 | } else { | |
520 | return 0; | |
521 | } | |
522 | } | |
523 | ||
a8170e5e | 524 | static void ahci_idp_write(void *opaque, hwaddr addr, |
465f1ab1 DV |
525 | uint64_t val, unsigned size) |
526 | { | |
527 | AHCIState *s = opaque; | |
528 | ||
529 | if (addr == s->idp_offset) { | |
530 | /* index register - mask off reserved bits */ | |
531 | s->idp_index = (uint32_t)val & ((AHCI_MEM_BAR_SIZE - 1) & ~3); | |
532 | } else if (addr == s->idp_offset + 4) { | |
533 | /* data register - do memory write at location selected by index */ | |
534 | ahci_mem_write(opaque, s->idp_index, val, size); | |
535 | } | |
536 | } | |
537 | ||
a348f108 | 538 | static const MemoryRegionOps ahci_idp_ops = { |
465f1ab1 DV |
539 | .read = ahci_idp_read, |
540 | .write = ahci_idp_write, | |
541 | .endianness = DEVICE_LITTLE_ENDIAN, | |
542 | }; | |
543 | ||
544 | ||
f6ad2e32 AG |
545 | static void ahci_reg_init(AHCIState *s) |
546 | { | |
547 | int i; | |
548 | ||
2c4b9d0e | 549 | s->control_regs.cap = (s->ports - 1) | |
f6ad2e32 AG |
550 | (AHCI_NUM_COMMAND_SLOTS << 8) | |
551 | (AHCI_SUPPORTED_SPEED_GEN1 << AHCI_SUPPORTED_SPEED) | | |
98cb5dcc | 552 | HOST_CAP_NCQ | HOST_CAP_AHCI | HOST_CAP_64; |
f6ad2e32 | 553 | |
2c4b9d0e | 554 | s->control_regs.impl = (1 << s->ports) - 1; |
f6ad2e32 AG |
555 | |
556 | s->control_regs.version = AHCI_VERSION_1_0; | |
557 | ||
2c4b9d0e | 558 | for (i = 0; i < s->ports; i++) { |
f6ad2e32 AG |
559 | s->dev[i].port_state = STATE_RUN; |
560 | } | |
561 | } | |
562 | ||
f6ad2e32 AG |
563 | static void check_cmd(AHCIState *s, int port) |
564 | { | |
565 | AHCIPortRegs *pr = &s->dev[port].port_regs; | |
9364384d | 566 | uint8_t slot; |
f6ad2e32 AG |
567 | |
568 | if ((pr->cmd & PORT_CMD_START) && pr->cmd_issue) { | |
569 | for (slot = 0; (slot < 32) && pr->cmd_issue; slot++) { | |
ee25595f | 570 | if ((pr->cmd_issue & (1U << slot)) && |
f6ad2e32 | 571 | !handle_cmd(s, port, slot)) { |
ee25595f | 572 | pr->cmd_issue &= ~(1U << slot); |
f6ad2e32 AG |
573 | } |
574 | } | |
575 | } | |
576 | } | |
577 | ||
578 | static void ahci_check_cmd_bh(void *opaque) | |
579 | { | |
580 | AHCIDevice *ad = opaque; | |
581 | ||
582 | qemu_bh_delete(ad->check_bh); | |
583 | ad->check_bh = NULL; | |
584 | ||
f6ad2e32 AG |
585 | check_cmd(ad->hba, ad->port_no); |
586 | } | |
587 | ||
87e62065 AG |
588 | static void ahci_init_d2h(AHCIDevice *ad) |
589 | { | |
87e62065 | 590 | IDEState *ide_state = &ad->port.ifs[0]; |
33a983cb | 591 | AHCIPortRegs *pr = &ad->port_regs; |
87e62065 | 592 | |
e47f9eb1 JS |
593 | if (ad->init_d2h_sent) { |
594 | return; | |
595 | } | |
87e62065 | 596 | |
e47f9eb1 JS |
597 | if (ahci_write_fis_d2h(ad)) { |
598 | ad->init_d2h_sent = true; | |
599 | /* We're emulating receiving the first Reg H2D Fis from the device; | |
600 | * Update the SIG register, but otherwise proceed as normal. */ | |
40fe17be | 601 | pr->sig = ((uint32_t)ide_state->hcyl << 24) | |
e47f9eb1 JS |
602 | (ide_state->lcyl << 16) | |
603 | (ide_state->sector << 8) | | |
604 | (ide_state->nsector & 0xFF); | |
605 | } | |
87e62065 AG |
606 | } |
607 | ||
33a983cb JS |
608 | static void ahci_set_signature(AHCIDevice *ad, uint32_t sig) |
609 | { | |
610 | IDEState *s = &ad->port.ifs[0]; | |
611 | s->hcyl = sig >> 24 & 0xFF; | |
612 | s->lcyl = sig >> 16 & 0xFF; | |
613 | s->sector = sig >> 8 & 0xFF; | |
614 | s->nsector = sig & 0xFF; | |
615 | ||
e4baa9f0 JS |
616 | trace_ahci_set_signature(ad->hba, ad->port_no, s->nsector, s->sector, |
617 | s->lcyl, s->hcyl, sig); | |
33a983cb JS |
618 | } |
619 | ||
f6ad2e32 AG |
620 | static void ahci_reset_port(AHCIState *s, int port) |
621 | { | |
622 | AHCIDevice *d = &s->dev[port]; | |
623 | AHCIPortRegs *pr = &d->port_regs; | |
624 | IDEState *ide_state = &d->port.ifs[0]; | |
f6ad2e32 AG |
625 | int i; |
626 | ||
e4baa9f0 | 627 | trace_ahci_reset_port(s, port); |
f6ad2e32 AG |
628 | |
629 | ide_bus_reset(&d->port); | |
630 | ide_state->ncq_queues = AHCI_MAX_CMDS; | |
631 | ||
f6ad2e32 | 632 | pr->scr_stat = 0; |
f6ad2e32 AG |
633 | pr->scr_err = 0; |
634 | pr->scr_act = 0; | |
fac7aa7f JS |
635 | pr->tfdata = 0x7F; |
636 | pr->sig = 0xFFFFFFFF; | |
f6ad2e32 | 637 | d->busy_slot = -1; |
4ac557c8 | 638 | d->init_d2h_sent = false; |
f6ad2e32 AG |
639 | |
640 | ide_state = &s->dev[port].port.ifs[0]; | |
4be74634 | 641 | if (!ide_state->blk) { |
f6ad2e32 AG |
642 | return; |
643 | } | |
644 | ||
645 | /* reset ncq queue */ | |
646 | for (i = 0; i < AHCI_MAX_CMDS; i++) { | |
647 | NCQTransferState *ncq_tfs = &s->dev[port].ncq_tfs[i]; | |
7c03a691 | 648 | ncq_tfs->halt = false; |
f6ad2e32 AG |
649 | if (!ncq_tfs->used) { |
650 | continue; | |
651 | } | |
652 | ||
653 | if (ncq_tfs->aiocb) { | |
4be74634 | 654 | blk_aio_cancel(ncq_tfs->aiocb); |
f6ad2e32 AG |
655 | ncq_tfs->aiocb = NULL; |
656 | } | |
657 | ||
4be74634 | 658 | /* Maybe we just finished the request thanks to blk_aio_cancel() */ |
c9b308d2 AG |
659 | if (!ncq_tfs->used) { |
660 | continue; | |
661 | } | |
662 | ||
f6ad2e32 AG |
663 | qemu_sglist_destroy(&ncq_tfs->sglist); |
664 | ncq_tfs->used = 0; | |
665 | } | |
666 | ||
f6ad2e32 | 667 | s->dev[port].port_state = STATE_RUN; |
f91a0aa3 | 668 | if (ide_state->drive_kind == IDE_CD) { |
33a983cb | 669 | ahci_set_signature(d, SATA_SIGNATURE_CDROM);\ |
f6ad2e32 AG |
670 | ide_state->status = SEEK_STAT | WRERR_STAT | READY_STAT; |
671 | } else { | |
33a983cb | 672 | ahci_set_signature(d, SATA_SIGNATURE_DISK); |
f6ad2e32 AG |
673 | ide_state->status = SEEK_STAT | WRERR_STAT; |
674 | } | |
675 | ||
676 | ide_state->error = 1; | |
87e62065 | 677 | ahci_init_d2h(d); |
f6ad2e32 AG |
678 | } |
679 | ||
797285c8 JS |
680 | /* Buffer pretty output based on a raw FIS structure. */ |
681 | static char *ahci_pretty_buffer_fis(uint8_t *fis, int cmd_len) | |
f6ad2e32 | 682 | { |
f6ad2e32 | 683 | int i; |
797285c8 | 684 | GString *s = g_string_new("FIS:"); |
f6ad2e32 | 685 | |
f6ad2e32 AG |
686 | for (i = 0; i < cmd_len; i++) { |
687 | if ((i & 0xf) == 0) { | |
797285c8 | 688 | g_string_append_printf(s, "\n0x%02x: ", i); |
f6ad2e32 | 689 | } |
797285c8 | 690 | g_string_append_printf(s, "%02x ", fis[i]); |
f6ad2e32 | 691 | } |
797285c8 JS |
692 | g_string_append_c(s, '\n'); |
693 | ||
694 | return g_string_free(s, FALSE); | |
f6ad2e32 AG |
695 | } |
696 | ||
a13ab5a3 JS |
697 | static bool ahci_map_fis_address(AHCIDevice *ad) |
698 | { | |
699 | AHCIPortRegs *pr = &ad->port_regs; | |
700 | map_page(ad->hba->as, &ad->res_fis, | |
701 | ((uint64_t)pr->fis_addr_hi << 32) | pr->fis_addr, 256); | |
f32a2f33 JS |
702 | if (ad->res_fis != NULL) { |
703 | pr->cmd |= PORT_CMD_FIS_ON; | |
704 | return true; | |
705 | } | |
706 | ||
707 | pr->cmd &= ~PORT_CMD_FIS_ON; | |
708 | return false; | |
a13ab5a3 JS |
709 | } |
710 | ||
fc3d8e11 JS |
711 | static void ahci_unmap_fis_address(AHCIDevice *ad) |
712 | { | |
99b4cb71 | 713 | if (ad->res_fis == NULL) { |
e4baa9f0 | 714 | trace_ahci_unmap_fis_address_null(ad->hba, ad->port_no); |
99b4cb71 JS |
715 | return; |
716 | } | |
f32a2f33 | 717 | ad->port_regs.cmd &= ~PORT_CMD_FIS_ON; |
fc3d8e11 JS |
718 | dma_memory_unmap(ad->hba->as, ad->res_fis, 256, |
719 | DMA_DIRECTION_FROM_DEVICE, 256); | |
720 | ad->res_fis = NULL; | |
721 | } | |
722 | ||
a13ab5a3 JS |
723 | static bool ahci_map_clb_address(AHCIDevice *ad) |
724 | { | |
725 | AHCIPortRegs *pr = &ad->port_regs; | |
726 | ad->cur_cmd = NULL; | |
727 | map_page(ad->hba->as, &ad->lst, | |
728 | ((uint64_t)pr->lst_addr_hi << 32) | pr->lst_addr, 1024); | |
f32a2f33 JS |
729 | if (ad->lst != NULL) { |
730 | pr->cmd |= PORT_CMD_LIST_ON; | |
731 | return true; | |
732 | } | |
733 | ||
734 | pr->cmd &= ~PORT_CMD_LIST_ON; | |
735 | return false; | |
a13ab5a3 JS |
736 | } |
737 | ||
fc3d8e11 JS |
738 | static void ahci_unmap_clb_address(AHCIDevice *ad) |
739 | { | |
99b4cb71 | 740 | if (ad->lst == NULL) { |
e4baa9f0 | 741 | trace_ahci_unmap_clb_address_null(ad->hba, ad->port_no); |
99b4cb71 JS |
742 | return; |
743 | } | |
f32a2f33 | 744 | ad->port_regs.cmd &= ~PORT_CMD_LIST_ON; |
fc3d8e11 JS |
745 | dma_memory_unmap(ad->hba->as, ad->lst, 1024, |
746 | DMA_DIRECTION_FROM_DEVICE, 1024); | |
747 | ad->lst = NULL; | |
748 | } | |
749 | ||
7c649ac5 | 750 | static void ahci_write_fis_sdb(AHCIState *s, NCQTransferState *ncq_tfs) |
f6ad2e32 | 751 | { |
7c649ac5 | 752 | AHCIDevice *ad = ncq_tfs->drive; |
fac7aa7f | 753 | AHCIPortRegs *pr = &ad->port_regs; |
f6ad2e32 | 754 | IDEState *ide_state; |
54a7f8f3 | 755 | SDBFIS *sdb_fis; |
f6ad2e32 | 756 | |
7c649ac5 | 757 | if (!ad->res_fis || |
f6ad2e32 AG |
758 | !(pr->cmd & PORT_CMD_FIS_RX)) { |
759 | return; | |
760 | } | |
761 | ||
54a7f8f3 | 762 | sdb_fis = (SDBFIS *)&ad->res_fis[RES_FIS_SDBFIS]; |
fac7aa7f | 763 | ide_state = &ad->port.ifs[0]; |
f6ad2e32 | 764 | |
17fcb74a | 765 | sdb_fis->type = SATA_FIS_TYPE_SDB; |
54a7f8f3 | 766 | /* Interrupt pending & Notification bit */ |
7c649ac5 | 767 | sdb_fis->flags = 0x40; /* Interrupt bit, always 1 for NCQ */ |
54a7f8f3 JS |
768 | sdb_fis->status = ide_state->status & 0x77; |
769 | sdb_fis->error = ide_state->error; | |
770 | /* update SAct field in SDB_FIS */ | |
54a7f8f3 | 771 | sdb_fis->payload = cpu_to_le32(ad->finished); |
f6ad2e32 | 772 | |
fac7aa7f JS |
773 | /* Update shadow registers (except BSY 0x80 and DRQ 0x08) */ |
774 | pr->tfdata = (ad->port.ifs[0].error << 8) | | |
775 | (ad->port.ifs[0].status & 0x77) | | |
776 | (pr->tfdata & 0x88); | |
7c649ac5 JS |
777 | pr->scr_act &= ~ad->finished; |
778 | ad->finished = 0; | |
fac7aa7f | 779 | |
7c649ac5 JS |
780 | /* Trigger IRQ if interrupt bit is set (which currently, it always is) */ |
781 | if (sdb_fis->flags & 0x40) { | |
5fa0feec | 782 | ahci_trigger_irq(s, ad, AHCI_PORT_IRQ_BIT_SDBS); |
7c649ac5 | 783 | } |
f6ad2e32 AG |
784 | } |
785 | ||
08841520 PB |
786 | static void ahci_write_fis_pio(AHCIDevice *ad, uint16_t len) |
787 | { | |
788 | AHCIPortRegs *pr = &ad->port_regs; | |
dd628221 | 789 | uint8_t *pio_fis; |
7b8bad1b | 790 | IDEState *s = &ad->port.ifs[0]; |
08841520 PB |
791 | |
792 | if (!ad->res_fis || !(pr->cmd & PORT_CMD_FIS_RX)) { | |
793 | return; | |
794 | } | |
795 | ||
08841520 PB |
796 | pio_fis = &ad->res_fis[RES_FIS_PSFIS]; |
797 | ||
17fcb74a | 798 | pio_fis[0] = SATA_FIS_TYPE_PIO_SETUP; |
08841520 | 799 | pio_fis[1] = (ad->hba->control_regs.irqstatus ? (1 << 6) : 0); |
7b8bad1b JS |
800 | pio_fis[2] = s->status; |
801 | pio_fis[3] = s->error; | |
802 | ||
803 | pio_fis[4] = s->sector; | |
804 | pio_fis[5] = s->lcyl; | |
805 | pio_fis[6] = s->hcyl; | |
806 | pio_fis[7] = s->select; | |
807 | pio_fis[8] = s->hob_sector; | |
808 | pio_fis[9] = s->hob_lcyl; | |
809 | pio_fis[10] = s->hob_hcyl; | |
810 | pio_fis[11] = 0; | |
dd628221 JS |
811 | pio_fis[12] = s->nsector & 0xFF; |
812 | pio_fis[13] = (s->nsector >> 8) & 0xFF; | |
08841520 | 813 | pio_fis[14] = 0; |
7b8bad1b | 814 | pio_fis[15] = s->status; |
08841520 PB |
815 | pio_fis[16] = len & 255; |
816 | pio_fis[17] = len >> 8; | |
817 | pio_fis[18] = 0; | |
818 | pio_fis[19] = 0; | |
819 | ||
fac7aa7f JS |
820 | /* Update shadow registers: */ |
821 | pr->tfdata = (ad->port.ifs[0].error << 8) | | |
822 | ad->port.ifs[0].status; | |
823 | ||
08841520 | 824 | if (pio_fis[2] & ERR_STAT) { |
5fa0feec | 825 | ahci_trigger_irq(ad->hba, ad, AHCI_PORT_IRQ_BIT_TFES); |
08841520 PB |
826 | } |
827 | ||
5fa0feec | 828 | ahci_trigger_irq(ad->hba, ad, AHCI_PORT_IRQ_BIT_PSS); |
08841520 PB |
829 | } |
830 | ||
e47f9eb1 | 831 | static bool ahci_write_fis_d2h(AHCIDevice *ad) |
f6ad2e32 AG |
832 | { |
833 | AHCIPortRegs *pr = &ad->port_regs; | |
834 | uint8_t *d2h_fis; | |
835 | int i; | |
7b8bad1b | 836 | IDEState *s = &ad->port.ifs[0]; |
f6ad2e32 AG |
837 | |
838 | if (!ad->res_fis || !(pr->cmd & PORT_CMD_FIS_RX)) { | |
e47f9eb1 | 839 | return false; |
f6ad2e32 AG |
840 | } |
841 | ||
f6ad2e32 AG |
842 | d2h_fis = &ad->res_fis[RES_FIS_RFIS]; |
843 | ||
17fcb74a | 844 | d2h_fis[0] = SATA_FIS_TYPE_REGISTER_D2H; |
f6ad2e32 | 845 | d2h_fis[1] = (ad->hba->control_regs.irqstatus ? (1 << 6) : 0); |
7b8bad1b JS |
846 | d2h_fis[2] = s->status; |
847 | d2h_fis[3] = s->error; | |
848 | ||
849 | d2h_fis[4] = s->sector; | |
850 | d2h_fis[5] = s->lcyl; | |
851 | d2h_fis[6] = s->hcyl; | |
852 | d2h_fis[7] = s->select; | |
853 | d2h_fis[8] = s->hob_sector; | |
854 | d2h_fis[9] = s->hob_lcyl; | |
855 | d2h_fis[10] = s->hob_hcyl; | |
856 | d2h_fis[11] = 0; | |
dd628221 JS |
857 | d2h_fis[12] = s->nsector & 0xFF; |
858 | d2h_fis[13] = (s->nsector >> 8) & 0xFF; | |
4bb9c939 | 859 | for (i = 14; i < 20; i++) { |
f6ad2e32 AG |
860 | d2h_fis[i] = 0; |
861 | } | |
862 | ||
fac7aa7f JS |
863 | /* Update shadow registers: */ |
864 | pr->tfdata = (ad->port.ifs[0].error << 8) | | |
865 | ad->port.ifs[0].status; | |
866 | ||
f6ad2e32 | 867 | if (d2h_fis[2] & ERR_STAT) { |
5fa0feec | 868 | ahci_trigger_irq(ad->hba, ad, AHCI_PORT_IRQ_BIT_TFES); |
f6ad2e32 AG |
869 | } |
870 | ||
5fa0feec | 871 | ahci_trigger_irq(ad->hba, ad, AHCI_PORT_IRQ_BIT_DHRS); |
e47f9eb1 | 872 | return true; |
f6ad2e32 AG |
873 | } |
874 | ||
d02f8adc RJ |
875 | static int prdt_tbl_entry_size(const AHCI_SG *tbl) |
876 | { | |
a718978e | 877 | /* flags_size is zero-based */ |
d02f8adc RJ |
878 | return (le32_to_cpu(tbl->flags_size) & AHCI_PRDT_SIZE_MASK) + 1; |
879 | } | |
880 | ||
9fbf0fa8 JS |
881 | /** |
882 | * Fetch entries in a guest-provided PRDT and convert it into a QEMU SGlist. | |
883 | * @ad: The AHCIDevice for whom we are building the SGList. | |
884 | * @sglist: The SGList target to add PRD entries to. | |
885 | * @cmd: The AHCI Command Header that describes where the PRDT is. | |
886 | * @limit: The remaining size of the S/ATA transaction, in bytes. | |
887 | * @offset: The number of bytes already transferred, in bytes. | |
888 | * | |
889 | * The AHCI PRDT can describe up to 256GiB. S/ATA only support transactions of | |
890 | * up to 32MiB as of ATA8-ACS3 rev 1b, assuming a 512 byte sector size. We stop | |
891 | * building the sglist from the PRDT as soon as we hit @limit bytes, | |
892 | * which is <= INT32_MAX/2GiB. | |
893 | */ | |
3251bdcf | 894 | static int ahci_populate_sglist(AHCIDevice *ad, QEMUSGList *sglist, |
9fbf0fa8 | 895 | AHCICmdHdr *cmd, int64_t limit, uint64_t offset) |
f6ad2e32 | 896 | { |
d56f4d69 JS |
897 | uint16_t opts = le16_to_cpu(cmd->opts); |
898 | uint16_t prdtl = le16_to_cpu(cmd->prdtl); | |
899 | uint64_t cfis_addr = le64_to_cpu(cmd->tbl_addr); | |
900 | uint64_t prdt_addr = cfis_addr + 0x80; | |
901 | dma_addr_t prdt_len = (prdtl * sizeof(AHCI_SG)); | |
10ca2943 | 902 | dma_addr_t real_prdt_len = prdt_len; |
f6ad2e32 AG |
903 | uint8_t *prdt; |
904 | int i; | |
905 | int r = 0; | |
3251bdcf | 906 | uint64_t sum = 0; |
61f52e06 | 907 | int off_idx = -1; |
3251bdcf | 908 | int64_t off_pos = -1; |
61f52e06 | 909 | int tbl_entry_size; |
f487b677 PB |
910 | IDEBus *bus = &ad->port; |
911 | BusState *qbus = BUS(bus); | |
f6ad2e32 | 912 | |
e4baa9f0 JS |
913 | trace_ahci_populate_sglist(ad->hba, ad->port_no); |
914 | ||
d56f4d69 | 915 | if (!prdtl) { |
e4baa9f0 | 916 | trace_ahci_populate_sglist_no_prdtl(ad->hba, ad->port_no, opts); |
f6ad2e32 AG |
917 | return -1; |
918 | } | |
919 | ||
920 | /* map PRDT */ | |
df32fd1c | 921 | if (!(prdt = dma_memory_map(ad->hba->as, prdt_addr, &prdt_len, |
10ca2943 | 922 | DMA_DIRECTION_TO_DEVICE))){ |
e4baa9f0 | 923 | trace_ahci_populate_sglist_no_map(ad->hba, ad->port_no); |
f6ad2e32 AG |
924 | return -1; |
925 | } | |
926 | ||
927 | if (prdt_len < real_prdt_len) { | |
e4baa9f0 | 928 | trace_ahci_populate_sglist_short_map(ad->hba, ad->port_no); |
f6ad2e32 AG |
929 | r = -1; |
930 | goto out; | |
931 | } | |
932 | ||
933 | /* Get entries in the PRDT, init a qemu sglist accordingly */ | |
d56f4d69 | 934 | if (prdtl > 0) { |
f6ad2e32 | 935 | AHCI_SG *tbl = (AHCI_SG *)prdt; |
61f52e06 | 936 | sum = 0; |
d56f4d69 | 937 | for (i = 0; i < prdtl; i++) { |
d02f8adc | 938 | tbl_entry_size = prdt_tbl_entry_size(&tbl[i]); |
a718978e | 939 | if (offset < (sum + tbl_entry_size)) { |
61f52e06 JB |
940 | off_idx = i; |
941 | off_pos = offset - sum; | |
942 | break; | |
943 | } | |
944 | sum += tbl_entry_size; | |
945 | } | |
946 | if ((off_idx == -1) || (off_pos < 0) || (off_pos > tbl_entry_size)) { | |
e4baa9f0 JS |
947 | trace_ahci_populate_sglist_bad_offset(ad->hba, ad->port_no, |
948 | off_idx, off_pos); | |
61f52e06 JB |
949 | r = -1; |
950 | goto out; | |
951 | } | |
952 | ||
d56f4d69 | 953 | qemu_sglist_init(sglist, qbus->parent, (prdtl - off_idx), |
f487b677 | 954 | ad->hba->as); |
ac381236 | 955 | qemu_sglist_add(sglist, le64_to_cpu(tbl[off_idx].addr) + off_pos, |
a718978e JS |
956 | MIN(prdt_tbl_entry_size(&tbl[off_idx]) - off_pos, |
957 | limit)); | |
61f52e06 | 958 | |
a718978e | 959 | for (i = off_idx + 1; i < prdtl && sglist->size < limit; i++) { |
f6ad2e32 | 960 | qemu_sglist_add(sglist, le64_to_cpu(tbl[i].addr), |
a718978e JS |
961 | MIN(prdt_tbl_entry_size(&tbl[i]), |
962 | limit - sglist->size)); | |
f6ad2e32 AG |
963 | } |
964 | } | |
965 | ||
966 | out: | |
df32fd1c | 967 | dma_memory_unmap(ad->hba->as, prdt, prdt_len, |
10ca2943 | 968 | DMA_DIRECTION_TO_DEVICE, prdt_len); |
f6ad2e32 AG |
969 | return r; |
970 | } | |
971 | ||
a55c8231 JS |
972 | static void ncq_err(NCQTransferState *ncq_tfs) |
973 | { | |
974 | IDEState *ide_state = &ncq_tfs->drive->port.ifs[0]; | |
975 | ||
976 | ide_state->error = ABRT_ERR; | |
977 | ide_state->status = READY_STAT | ERR_STAT; | |
978 | ncq_tfs->drive->port_regs.scr_err |= (1 << ncq_tfs->tag); | |
5839df7b | 979 | qemu_sglist_destroy(&ncq_tfs->sglist); |
4ab0359a | 980 | ncq_tfs->used = 0; |
a55c8231 JS |
981 | } |
982 | ||
54f32237 JS |
983 | static void ncq_finish(NCQTransferState *ncq_tfs) |
984 | { | |
7c649ac5 JS |
985 | /* If we didn't error out, set our finished bit. Errored commands |
986 | * do not get a bit set for the SDB FIS ACT register, nor do they | |
987 | * clear the outstanding bit in scr_act (PxSACT). */ | |
988 | if (!(ncq_tfs->drive->port_regs.scr_err & (1 << ncq_tfs->tag))) { | |
989 | ncq_tfs->drive->finished |= (1 << ncq_tfs->tag); | |
990 | } | |
54f32237 | 991 | |
7c649ac5 | 992 | ahci_write_fis_sdb(ncq_tfs->drive->hba, ncq_tfs); |
54f32237 | 993 | |
e4baa9f0 JS |
994 | trace_ncq_finish(ncq_tfs->drive->hba, ncq_tfs->drive->port_no, |
995 | ncq_tfs->tag); | |
54f32237 JS |
996 | |
997 | block_acct_done(blk_get_stats(ncq_tfs->drive->port.ifs[0].blk), | |
998 | &ncq_tfs->acct); | |
999 | qemu_sglist_destroy(&ncq_tfs->sglist); | |
1000 | ncq_tfs->used = 0; | |
1001 | } | |
1002 | ||
f6ad2e32 AG |
1003 | static void ncq_cb(void *opaque, int ret) |
1004 | { | |
1005 | NCQTransferState *ncq_tfs = (NCQTransferState *)opaque; | |
1006 | IDEState *ide_state = &ncq_tfs->drive->port.ifs[0]; | |
1007 | ||
df403bc5 | 1008 | ncq_tfs->aiocb = NULL; |
0d910cfe FZ |
1009 | if (ret == -ECANCELED) { |
1010 | return; | |
1011 | } | |
f6ad2e32 AG |
1012 | |
1013 | if (ret < 0) { | |
7c03a691 JS |
1014 | bool is_read = ncq_tfs->cmd == READ_FPDMA_QUEUED; |
1015 | BlockErrorAction action = blk_get_error_action(ide_state->blk, | |
1016 | is_read, -ret); | |
1017 | if (action == BLOCK_ERROR_ACTION_STOP) { | |
1018 | ncq_tfs->halt = true; | |
1019 | ide_state->bus->error_status = IDE_RETRY_HBA; | |
1020 | } else if (action == BLOCK_ERROR_ACTION_REPORT) { | |
1021 | ncq_err(ncq_tfs); | |
1022 | } | |
1023 | blk_error_action(ide_state->blk, action, is_read, -ret); | |
f6ad2e32 AG |
1024 | } else { |
1025 | ide_state->status = READY_STAT | SEEK_STAT; | |
1026 | } | |
1027 | ||
7c03a691 JS |
1028 | if (!ncq_tfs->halt) { |
1029 | ncq_finish(ncq_tfs); | |
1030 | } | |
f6ad2e32 AG |
1031 | } |
1032 | ||
72a065db JS |
1033 | static int is_ncq(uint8_t ata_cmd) |
1034 | { | |
1035 | /* Based on SATA 3.2 section 13.6.3.2 */ | |
1036 | switch (ata_cmd) { | |
1037 | case READ_FPDMA_QUEUED: | |
1038 | case WRITE_FPDMA_QUEUED: | |
1039 | case NCQ_NON_DATA: | |
1040 | case RECEIVE_FPDMA_QUEUED: | |
1041 | case SEND_FPDMA_QUEUED: | |
1042 | return 1; | |
1043 | default: | |
1044 | return 0; | |
1045 | } | |
1046 | } | |
1047 | ||
631ddc22 JS |
1048 | static void execute_ncq_command(NCQTransferState *ncq_tfs) |
1049 | { | |
1050 | AHCIDevice *ad = ncq_tfs->drive; | |
1051 | IDEState *ide_state = &ad->port.ifs[0]; | |
1052 | int port = ad->port_no; | |
7c03a691 | 1053 | |
631ddc22 | 1054 | g_assert(is_ncq(ncq_tfs->cmd)); |
7c03a691 | 1055 | ncq_tfs->halt = false; |
631ddc22 JS |
1056 | |
1057 | switch (ncq_tfs->cmd) { | |
1058 | case READ_FPDMA_QUEUED: | |
e4baa9f0 JS |
1059 | trace_execute_ncq_command_read(ad->hba, port, ncq_tfs->tag, |
1060 | ncq_tfs->sector_count, ncq_tfs->lba); | |
631ddc22 JS |
1061 | dma_acct_start(ide_state->blk, &ncq_tfs->acct, |
1062 | &ncq_tfs->sglist, BLOCK_ACCT_READ); | |
1063 | ncq_tfs->aiocb = dma_blk_read(ide_state->blk, &ncq_tfs->sglist, | |
cbe0ed62 | 1064 | ncq_tfs->lba << BDRV_SECTOR_BITS, |
99868af3 | 1065 | BDRV_SECTOR_SIZE, |
cbe0ed62 | 1066 | ncq_cb, ncq_tfs); |
631ddc22 JS |
1067 | break; |
1068 | case WRITE_FPDMA_QUEUED: | |
e4baa9f0 JS |
1069 | trace_execute_ncq_command_read(ad->hba, port, ncq_tfs->tag, |
1070 | ncq_tfs->sector_count, ncq_tfs->lba); | |
631ddc22 JS |
1071 | dma_acct_start(ide_state->blk, &ncq_tfs->acct, |
1072 | &ncq_tfs->sglist, BLOCK_ACCT_WRITE); | |
1073 | ncq_tfs->aiocb = dma_blk_write(ide_state->blk, &ncq_tfs->sglist, | |
cbe0ed62 | 1074 | ncq_tfs->lba << BDRV_SECTOR_BITS, |
99868af3 | 1075 | BDRV_SECTOR_SIZE, |
cbe0ed62 | 1076 | ncq_cb, ncq_tfs); |
631ddc22 JS |
1077 | break; |
1078 | default: | |
e4baa9f0 JS |
1079 | trace_execute_ncq_command_unsup(ad->hba, port, |
1080 | ncq_tfs->tag, ncq_tfs->cmd); | |
631ddc22 JS |
1081 | ncq_err(ncq_tfs); |
1082 | } | |
1083 | } | |
1084 | ||
1085 | ||
f6ad2e32 | 1086 | static void process_ncq_command(AHCIState *s, int port, uint8_t *cmd_fis, |
9364384d | 1087 | uint8_t slot) |
f6ad2e32 | 1088 | { |
b6fe41fa | 1089 | AHCIDevice *ad = &s->dev[port]; |
f6ad2e32 AG |
1090 | NCQFrame *ncq_fis = (NCQFrame*)cmd_fis; |
1091 | uint8_t tag = ncq_fis->tag >> 3; | |
b6fe41fa | 1092 | NCQTransferState *ncq_tfs = &ad->ncq_tfs[tag]; |
3bcbe4aa | 1093 | size_t size; |
f6ad2e32 | 1094 | |
922f893e | 1095 | g_assert(is_ncq(ncq_fis->command)); |
f6ad2e32 AG |
1096 | if (ncq_tfs->used) { |
1097 | /* error - already in use */ | |
a89f364a | 1098 | fprintf(stderr, "%s: tag %d already used\n", __func__, tag); |
f6ad2e32 AG |
1099 | return; |
1100 | } | |
1101 | ||
1102 | ncq_tfs->used = 1; | |
b6fe41fa | 1103 | ncq_tfs->drive = ad; |
f6ad2e32 | 1104 | ncq_tfs->slot = slot; |
c82bd3c8 | 1105 | ncq_tfs->cmdh = &((AHCICmdHdr *)ad->lst)[slot]; |
4614619e | 1106 | ncq_tfs->cmd = ncq_fis->command; |
f6ad2e32 AG |
1107 | ncq_tfs->lba = ((uint64_t)ncq_fis->lba5 << 40) | |
1108 | ((uint64_t)ncq_fis->lba4 << 32) | | |
1109 | ((uint64_t)ncq_fis->lba3 << 24) | | |
1110 | ((uint64_t)ncq_fis->lba2 << 16) | | |
1111 | ((uint64_t)ncq_fis->lba1 << 8) | | |
1112 | (uint64_t)ncq_fis->lba0; | |
3bcbe4aa | 1113 | ncq_tfs->tag = tag; |
f6ad2e32 | 1114 | |
5d5f8921 JS |
1115 | /* Sanity-check the NCQ packet */ |
1116 | if (tag != slot) { | |
e4baa9f0 | 1117 | trace_process_ncq_command_mismatch(s, port, tag, slot); |
5d5f8921 JS |
1118 | } |
1119 | ||
1120 | if (ncq_fis->aux0 || ncq_fis->aux1 || ncq_fis->aux2 || ncq_fis->aux3) { | |
e4baa9f0 | 1121 | trace_process_ncq_command_aux(s, port, tag); |
5d5f8921 JS |
1122 | } |
1123 | if (ncq_fis->prio || ncq_fis->icc) { | |
e4baa9f0 | 1124 | trace_process_ncq_command_prioicc(s, port, tag); |
5d5f8921 JS |
1125 | } |
1126 | if (ncq_fis->fua & NCQ_FIS_FUA_MASK) { | |
e4baa9f0 | 1127 | trace_process_ncq_command_fua(s, port, tag); |
5d5f8921 JS |
1128 | } |
1129 | if (ncq_fis->tag & NCQ_FIS_RARC_MASK) { | |
e4baa9f0 | 1130 | trace_process_ncq_command_rarc(s, port, tag); |
5d5f8921 JS |
1131 | } |
1132 | ||
e08a9835 JS |
1133 | ncq_tfs->sector_count = ((ncq_fis->sector_count_high << 8) | |
1134 | ncq_fis->sector_count_low); | |
1135 | if (!ncq_tfs->sector_count) { | |
1136 | ncq_tfs->sector_count = 0x10000; | |
1137 | } | |
3bcbe4aa | 1138 | size = ncq_tfs->sector_count * 512; |
c82bd3c8 | 1139 | ahci_populate_sglist(ad, &ncq_tfs->sglist, ncq_tfs->cmdh, size, 0); |
3bcbe4aa JS |
1140 | |
1141 | if (ncq_tfs->sglist.size < size) { | |
1142 | error_report("ahci: PRDT length for NCQ command (0x%zx) " | |
1143 | "is smaller than the requested size (0x%zx)", | |
1144 | ncq_tfs->sglist.size, size); | |
3bcbe4aa | 1145 | ncq_err(ncq_tfs); |
5fa0feec | 1146 | ahci_trigger_irq(ad->hba, ad, AHCI_PORT_IRQ_BIT_OFS); |
3bcbe4aa | 1147 | return; |
5d5f8921 | 1148 | } else if (ncq_tfs->sglist.size != size) { |
e4baa9f0 JS |
1149 | trace_process_ncq_command_large(s, port, tag, |
1150 | ncq_tfs->sglist.size, size); | |
3bcbe4aa | 1151 | } |
f6ad2e32 | 1152 | |
e4baa9f0 JS |
1153 | trace_process_ncq_command(s, port, tag, |
1154 | ncq_fis->command, | |
1155 | ncq_tfs->lba, | |
1156 | ncq_tfs->lba + ncq_tfs->sector_count - 1); | |
631ddc22 | 1157 | execute_ncq_command(ncq_tfs); |
f6ad2e32 AG |
1158 | } |
1159 | ||
ee364416 JS |
1160 | static AHCICmdHdr *get_cmd_header(AHCIState *s, uint8_t port, uint8_t slot) |
1161 | { | |
1162 | if (port >= s->ports || slot >= AHCI_MAX_CMDS) { | |
1163 | return NULL; | |
1164 | } | |
1165 | ||
1166 | return s->dev[port].lst ? &((AHCICmdHdr *)s->dev[port].lst)[slot] : NULL; | |
1167 | } | |
1168 | ||
107f0d46 | 1169 | static void handle_reg_h2d_fis(AHCIState *s, int port, |
9364384d | 1170 | uint8_t slot, uint8_t *cmd_fis) |
107f0d46 JS |
1171 | { |
1172 | IDEState *ide_state = &s->dev[port].port.ifs[0]; | |
ee364416 | 1173 | AHCICmdHdr *cmd = get_cmd_header(s, port, slot); |
d56f4d69 | 1174 | uint16_t opts = le16_to_cpu(cmd->opts); |
107f0d46 JS |
1175 | |
1176 | if (cmd_fis[1] & 0x0F) { | |
e4baa9f0 JS |
1177 | trace_handle_reg_h2d_fis_pmp(s, port, cmd_fis[1], |
1178 | cmd_fis[2], cmd_fis[3]); | |
107f0d46 JS |
1179 | return; |
1180 | } | |
1181 | ||
1182 | if (cmd_fis[1] & 0x70) { | |
e4baa9f0 JS |
1183 | trace_handle_reg_h2d_fis_res(s, port, cmd_fis[1], |
1184 | cmd_fis[2], cmd_fis[3]); | |
107f0d46 JS |
1185 | return; |
1186 | } | |
1187 | ||
1188 | if (!(cmd_fis[1] & SATA_FIS_REG_H2D_UPDATE_COMMAND_REGISTER)) { | |
1189 | switch (s->dev[port].port_state) { | |
1190 | case STATE_RUN: | |
1191 | if (cmd_fis[15] & ATA_SRST) { | |
1192 | s->dev[port].port_state = STATE_RESET; | |
1193 | } | |
1194 | break; | |
1195 | case STATE_RESET: | |
1196 | if (!(cmd_fis[15] & ATA_SRST)) { | |
1197 | ahci_reset_port(s, port); | |
1198 | } | |
1199 | break; | |
1200 | } | |
1201 | return; | |
1202 | } | |
1203 | ||
1204 | /* Check for NCQ command */ | |
1205 | if (is_ncq(cmd_fis[2])) { | |
1206 | process_ncq_command(s, port, cmd_fis, slot); | |
1207 | return; | |
1208 | } | |
1209 | ||
1210 | /* Decompose the FIS: | |
1211 | * AHCI does not interpret FIS packets, it only forwards them. | |
1212 | * SATA 1.0 describes how to decode LBA28 and CHS FIS packets. | |
1213 | * Later specifications, e.g, SATA 3.2, describe LBA48 FIS packets. | |
1214 | * | |
1215 | * ATA4 describes sector number for LBA28/CHS commands. | |
1216 | * ATA6 describes sector number for LBA48 commands. | |
1217 | * ATA8 deprecates CHS fully, describing only LBA28/48. | |
1218 | * | |
1219 | * We dutifully convert the FIS into IDE registers, and allow the | |
1220 | * core layer to interpret them as needed. */ | |
1221 | ide_state->feature = cmd_fis[3]; | |
1222 | ide_state->sector = cmd_fis[4]; /* LBA 7:0 */ | |
1223 | ide_state->lcyl = cmd_fis[5]; /* LBA 15:8 */ | |
1224 | ide_state->hcyl = cmd_fis[6]; /* LBA 23:16 */ | |
1225 | ide_state->select = cmd_fis[7]; /* LBA 27:24 (LBA28) */ | |
1226 | ide_state->hob_sector = cmd_fis[8]; /* LBA 31:24 */ | |
1227 | ide_state->hob_lcyl = cmd_fis[9]; /* LBA 39:32 */ | |
1228 | ide_state->hob_hcyl = cmd_fis[10]; /* LBA 47:40 */ | |
1229 | ide_state->hob_feature = cmd_fis[11]; | |
1230 | ide_state->nsector = (int64_t)((cmd_fis[13] << 8) | cmd_fis[12]); | |
1231 | /* 14, 16, 17, 18, 19: Reserved (SATA 1.0) */ | |
1232 | /* 15: Only valid when UPDATE_COMMAND not set. */ | |
1233 | ||
1234 | /* Copy the ACMD field (ATAPI packet, if any) from the AHCI command | |
1235 | * table to ide_state->io_buffer */ | |
1236 | if (opts & AHCI_CMD_ATAPI) { | |
1237 | memcpy(ide_state->io_buffer, &cmd_fis[AHCI_COMMAND_TABLE_ACMD], 0x10); | |
797285c8 JS |
1238 | if (trace_event_get_state_backends(TRACE_HANDLE_REG_H2D_FIS_DUMP)) { |
1239 | char *pretty_fis = ahci_pretty_buffer_fis(ide_state->io_buffer, 0x10); | |
1240 | trace_handle_reg_h2d_fis_dump(s, port, pretty_fis); | |
1241 | g_free(pretty_fis); | |
1242 | } | |
107f0d46 JS |
1243 | s->dev[port].done_atapi_packet = false; |
1244 | /* XXX send PIO setup FIS */ | |
1245 | } | |
1246 | ||
1247 | ide_state->error = 0; | |
1248 | ||
1249 | /* Reset transferred byte counter */ | |
1250 | cmd->status = 0; | |
1251 | ||
1252 | /* We're ready to process the command in FIS byte 2. */ | |
1253 | ide_exec_cmd(&s->dev[port].port, cmd_fis[2]); | |
1254 | } | |
1255 | ||
9364384d | 1256 | static int handle_cmd(AHCIState *s, int port, uint8_t slot) |
f6ad2e32 AG |
1257 | { |
1258 | IDEState *ide_state; | |
f6ad2e32 AG |
1259 | uint64_t tbl_addr; |
1260 | AHCICmdHdr *cmd; | |
1261 | uint8_t *cmd_fis; | |
10ca2943 | 1262 | dma_addr_t cmd_len; |
f6ad2e32 AG |
1263 | |
1264 | if (s->dev[port].port.ifs[0].status & (BUSY_STAT|DRQ_STAT)) { | |
1265 | /* Engine currently busy, try again later */ | |
e4baa9f0 | 1266 | trace_handle_cmd_busy(s, port); |
f6ad2e32 AG |
1267 | return -1; |
1268 | } | |
1269 | ||
f6ad2e32 | 1270 | if (!s->dev[port].lst) { |
e4baa9f0 | 1271 | trace_handle_cmd_nolist(s, port); |
f6ad2e32 AG |
1272 | return -1; |
1273 | } | |
ee364416 | 1274 | cmd = get_cmd_header(s, port, slot); |
f6ad2e32 AG |
1275 | /* remember current slot handle for later */ |
1276 | s->dev[port].cur_cmd = cmd; | |
1277 | ||
36ab3c34 JS |
1278 | /* The device we are working for */ |
1279 | ide_state = &s->dev[port].port.ifs[0]; | |
1280 | if (!ide_state->blk) { | |
e4baa9f0 | 1281 | trace_handle_cmd_badport(s, port); |
36ab3c34 JS |
1282 | return -1; |
1283 | } | |
1284 | ||
f6ad2e32 | 1285 | tbl_addr = le64_to_cpu(cmd->tbl_addr); |
f6ad2e32 | 1286 | cmd_len = 0x80; |
df32fd1c | 1287 | cmd_fis = dma_memory_map(s->as, tbl_addr, &cmd_len, |
10ca2943 | 1288 | DMA_DIRECTION_FROM_DEVICE); |
f6ad2e32 | 1289 | if (!cmd_fis) { |
e4baa9f0 | 1290 | trace_handle_cmd_badfis(s, port); |
f6ad2e32 | 1291 | return -1; |
36ab3c34 | 1292 | } else if (cmd_len != 0x80) { |
5fa0feec | 1293 | ahci_trigger_irq(s, &s->dev[port], AHCI_PORT_IRQ_BIT_HBFS); |
e4baa9f0 | 1294 | trace_handle_cmd_badmap(s, port, cmd_len); |
f6ad2e32 AG |
1295 | goto out; |
1296 | } | |
797285c8 JS |
1297 | if (trace_event_get_state_backends(TRACE_HANDLE_CMD_FIS_DUMP)) { |
1298 | char *pretty_fis = ahci_pretty_buffer_fis(cmd_fis, 0x80); | |
1299 | trace_handle_cmd_fis_dump(s, port, pretty_fis); | |
1300 | g_free(pretty_fis); | |
1301 | } | |
f6ad2e32 AG |
1302 | switch (cmd_fis[0]) { |
1303 | case SATA_FIS_TYPE_REGISTER_H2D: | |
107f0d46 | 1304 | handle_reg_h2d_fis(s, port, slot, cmd_fis); |
f6ad2e32 AG |
1305 | break; |
1306 | default: | |
e4baa9f0 JS |
1307 | trace_handle_cmd_unhandled_fis(s, port, |
1308 | cmd_fis[0], cmd_fis[1], cmd_fis[2]); | |
f6ad2e32 AG |
1309 | break; |
1310 | } | |
1311 | ||
f6ad2e32 | 1312 | out: |
df32fd1c | 1313 | dma_memory_unmap(s->as, cmd_fis, cmd_len, DMA_DIRECTION_FROM_DEVICE, |
10ca2943 | 1314 | cmd_len); |
f6ad2e32 AG |
1315 | |
1316 | if (s->dev[port].port.ifs[0].status & (BUSY_STAT|DRQ_STAT)) { | |
1317 | /* async command, complete later */ | |
1318 | s->dev[port].busy_slot = slot; | |
1319 | return -1; | |
1320 | } | |
1321 | ||
1322 | /* done handling the command */ | |
1323 | return 0; | |
1324 | } | |
1325 | ||
1326 | /* DMA dev <-> ram */ | |
44635123 | 1327 | static void ahci_start_transfer(IDEDMA *dma) |
f6ad2e32 AG |
1328 | { |
1329 | AHCIDevice *ad = DO_UPCAST(AHCIDevice, dma, dma); | |
1330 | IDEState *s = &ad->port.ifs[0]; | |
1331 | uint32_t size = (uint32_t)(s->data_end - s->data_ptr); | |
1332 | /* write == ram -> device */ | |
d56f4d69 | 1333 | uint16_t opts = le16_to_cpu(ad->cur_cmd->opts); |
f6ad2e32 AG |
1334 | int is_write = opts & AHCI_CMD_WRITE; |
1335 | int is_atapi = opts & AHCI_CMD_ATAPI; | |
1336 | int has_sglist = 0; | |
1337 | ||
1338 | if (is_atapi && !ad->done_atapi_packet) { | |
1339 | /* already prepopulated iobuffer */ | |
4ac557c8 | 1340 | ad->done_atapi_packet = true; |
a395f3fa | 1341 | size = 0; |
f6ad2e32 AG |
1342 | goto out; |
1343 | } | |
1344 | ||
a718978e | 1345 | if (ahci_dma_prepare_buf(dma, size)) { |
f6ad2e32 AG |
1346 | has_sglist = 1; |
1347 | } | |
1348 | ||
e4baa9f0 JS |
1349 | trace_ahci_start_transfer(ad->hba, ad->port_no, is_write ? "writ" : "read", |
1350 | size, is_atapi ? "atapi" : "ata", | |
1351 | has_sglist ? "" : "o"); | |
f6ad2e32 | 1352 | |
da221327 PB |
1353 | if (has_sglist && size) { |
1354 | if (is_write) { | |
1355 | dma_buf_write(s->data_ptr, size, &s->sg); | |
1356 | } else { | |
1357 | dma_buf_read(s->data_ptr, size, &s->sg); | |
1358 | } | |
f6ad2e32 AG |
1359 | } |
1360 | ||
f6ad2e32 AG |
1361 | out: |
1362 | /* declare that we processed everything */ | |
1363 | s->data_ptr = s->data_end; | |
1364 | ||
659142ec | 1365 | /* Update number of transferred bytes, destroy sglist */ |
aaeda4a3 | 1366 | dma_buf_commit(s, size); |
f6ad2e32 AG |
1367 | |
1368 | s->end_transfer_func(s); | |
08841520 PB |
1369 | |
1370 | if (!(s->status & DRQ_STAT)) { | |
1371 | /* done with PIO send/receive */ | |
1372 | ahci_write_fis_pio(ad, le32_to_cpu(ad->cur_cmd->status)); | |
1373 | } | |
f6ad2e32 AG |
1374 | } |
1375 | ||
1376 | static void ahci_start_dma(IDEDMA *dma, IDEState *s, | |
097310b5 | 1377 | BlockCompletionFunc *dma_cb) |
f6ad2e32 AG |
1378 | { |
1379 | AHCIDevice *ad = DO_UPCAST(AHCIDevice, dma, dma); | |
e4baa9f0 | 1380 | trace_ahci_start_dma(ad->hba, ad->port_no); |
61f52e06 | 1381 | s->io_buffer_offset = 0; |
f6ad2e32 AG |
1382 | dma_cb(s, 0); |
1383 | } | |
1384 | ||
e8ef8743 PB |
1385 | static void ahci_restart_dma(IDEDMA *dma) |
1386 | { | |
1387 | /* Nothing to do, ahci_start_dma already resets s->io_buffer_offset. */ | |
1388 | } | |
1389 | ||
7c03a691 JS |
1390 | /** |
1391 | * IDE/PIO restarts are handled by the core layer, but NCQ commands | |
1392 | * need an extra kick from the AHCI HBA. | |
1393 | */ | |
1394 | static void ahci_restart(IDEDMA *dma) | |
1395 | { | |
1396 | AHCIDevice *ad = DO_UPCAST(AHCIDevice, dma, dma); | |
1397 | int i; | |
1398 | ||
1399 | for (i = 0; i < AHCI_MAX_CMDS; i++) { | |
1400 | NCQTransferState *ncq_tfs = &ad->ncq_tfs[i]; | |
1401 | if (ncq_tfs->halt) { | |
1402 | execute_ncq_command(ncq_tfs); | |
1403 | } | |
1404 | } | |
1405 | } | |
1406 | ||
659142ec | 1407 | /** |
aaeda4a3 JS |
1408 | * Called in DMA and PIO R/W chains to read the PRDT. |
1409 | * Not shared with NCQ pathways. | |
659142ec | 1410 | */ |
a718978e | 1411 | static int32_t ahci_dma_prepare_buf(IDEDMA *dma, int32_t limit) |
f6ad2e32 AG |
1412 | { |
1413 | AHCIDevice *ad = DO_UPCAST(AHCIDevice, dma, dma); | |
1414 | IDEState *s = &ad->port.ifs[0]; | |
f6ad2e32 | 1415 | |
c82bd3c8 JS |
1416 | if (ahci_populate_sglist(ad, &s->sg, ad->cur_cmd, |
1417 | limit, s->io_buffer_offset) == -1) { | |
e4baa9f0 | 1418 | trace_ahci_dma_prepare_buf_fail(ad->hba, ad->port_no); |
3251bdcf JS |
1419 | return -1; |
1420 | } | |
da221327 | 1421 | s->io_buffer_size = s->sg.size; |
f6ad2e32 | 1422 | |
e4baa9f0 | 1423 | trace_ahci_dma_prepare_buf(ad->hba, ad->port_no, limit, s->io_buffer_size); |
3251bdcf | 1424 | return s->io_buffer_size; |
f6ad2e32 AG |
1425 | } |
1426 | ||
659142ec | 1427 | /** |
aaeda4a3 JS |
1428 | * Updates the command header with a bytes-read value. |
1429 | * Called via dma_buf_commit, for both DMA and PIO paths. | |
1430 | * sglist destruction is handled within dma_buf_commit. | |
659142ec JS |
1431 | */ |
1432 | static void ahci_commit_buf(IDEDMA *dma, uint32_t tx_bytes) | |
1433 | { | |
1434 | AHCIDevice *ad = DO_UPCAST(AHCIDevice, dma, dma); | |
659142ec JS |
1435 | |
1436 | tx_bytes += le32_to_cpu(ad->cur_cmd->status); | |
1437 | ad->cur_cmd->status = cpu_to_le32(tx_bytes); | |
659142ec JS |
1438 | } |
1439 | ||
f6ad2e32 AG |
1440 | static int ahci_dma_rw_buf(IDEDMA *dma, int is_write) |
1441 | { | |
1442 | AHCIDevice *ad = DO_UPCAST(AHCIDevice, dma, dma); | |
1443 | IDEState *s = &ad->port.ifs[0]; | |
1444 | uint8_t *p = s->io_buffer + s->io_buffer_index; | |
1445 | int l = s->io_buffer_size - s->io_buffer_index; | |
1446 | ||
c82bd3c8 | 1447 | if (ahci_populate_sglist(ad, &s->sg, ad->cur_cmd, l, s->io_buffer_offset)) { |
f6ad2e32 AG |
1448 | return 0; |
1449 | } | |
1450 | ||
1451 | if (is_write) { | |
da221327 | 1452 | dma_buf_read(p, l, &s->sg); |
f6ad2e32 | 1453 | } else { |
da221327 | 1454 | dma_buf_write(p, l, &s->sg); |
f6ad2e32 AG |
1455 | } |
1456 | ||
659142ec | 1457 | /* free sglist, update byte count */ |
aaeda4a3 | 1458 | dma_buf_commit(s, l); |
f6ad2e32 AG |
1459 | s->io_buffer_index += l; |
1460 | ||
e4baa9f0 | 1461 | trace_ahci_dma_rw_buf(ad->hba, ad->port_no, l); |
f6ad2e32 AG |
1462 | return 1; |
1463 | } | |
1464 | ||
c7e73adb | 1465 | static void ahci_cmd_done(IDEDMA *dma) |
f6ad2e32 AG |
1466 | { |
1467 | AHCIDevice *ad = DO_UPCAST(AHCIDevice, dma, dma); | |
1468 | ||
e4baa9f0 | 1469 | trace_ahci_cmd_done(ad->hba, ad->port_no); |
f6ad2e32 | 1470 | |
5694c7ea JS |
1471 | /* no longer busy */ |
1472 | if (ad->busy_slot != -1) { | |
1473 | ad->port_regs.cmd_issue &= ~(1 << ad->busy_slot); | |
1474 | ad->busy_slot = -1; | |
1475 | } | |
1476 | ||
f6ad2e32 | 1477 | /* update d2h status */ |
28ee8255 | 1478 | ahci_write_fis_d2h(ad); |
f6ad2e32 | 1479 | |
42af312a | 1480 | if (ad->port_regs.cmd_issue && !ad->check_bh) { |
4d29b50a JK |
1481 | ad->check_bh = qemu_bh_new(ahci_check_cmd_bh, ad); |
1482 | qemu_bh_schedule(ad->check_bh); | |
1483 | } | |
f6ad2e32 AG |
1484 | } |
1485 | ||
1486 | static void ahci_irq_set(void *opaque, int n, int level) | |
1487 | { | |
1488 | } | |
1489 | ||
f6ad2e32 AG |
1490 | static const IDEDMAOps ahci_dma_ops = { |
1491 | .start_dma = ahci_start_dma, | |
7c03a691 | 1492 | .restart = ahci_restart, |
e8ef8743 | 1493 | .restart_dma = ahci_restart_dma, |
f6ad2e32 AG |
1494 | .start_transfer = ahci_start_transfer, |
1495 | .prepare_buf = ahci_dma_prepare_buf, | |
659142ec | 1496 | .commit_buf = ahci_commit_buf, |
f6ad2e32 | 1497 | .rw_buf = ahci_dma_rw_buf, |
c7e73adb | 1498 | .cmd_done = ahci_cmd_done, |
f6ad2e32 AG |
1499 | }; |
1500 | ||
0487eea4 | 1501 | void ahci_init(AHCIState *s, DeviceState *qdev) |
f6ad2e32 | 1502 | { |
bb639f82 | 1503 | s->container = qdev; |
67e576c2 | 1504 | /* XXX BAR size should be 1k, but that breaks, so bump it to 4k for now */ |
1437c94b PB |
1505 | memory_region_init_io(&s->mem, OBJECT(qdev), &ahci_mem_ops, s, |
1506 | "ahci", AHCI_MEM_BAR_SIZE); | |
1507 | memory_region_init_io(&s->idp, OBJECT(qdev), &ahci_idp_ops, s, | |
1508 | "ahci-idp", 32); | |
0487eea4 | 1509 | } |
465f1ab1 | 1510 | |
0487eea4 PC |
1511 | void ahci_realize(AHCIState *s, DeviceState *qdev, AddressSpace *as, int ports) |
1512 | { | |
1513 | qemu_irq *irqs; | |
1514 | int i; | |
f6ad2e32 | 1515 | |
0487eea4 PC |
1516 | s->as = as; |
1517 | s->ports = ports; | |
1518 | s->dev = g_new0(AHCIDevice, ports); | |
1519 | ahci_reg_init(s); | |
1520 | irqs = qemu_allocate_irqs(ahci_irq_set, s, s->ports); | |
2c4b9d0e | 1521 | for (i = 0; i < s->ports; i++) { |
f6ad2e32 AG |
1522 | AHCIDevice *ad = &s->dev[i]; |
1523 | ||
c6baf942 | 1524 | ide_bus_new(&ad->port, sizeof(ad->port), qdev, i, 1); |
f6ad2e32 AG |
1525 | ide_init2(&ad->port, irqs[i]); |
1526 | ||
1527 | ad->hba = s; | |
1528 | ad->port_no = i; | |
1529 | ad->port.dma = &ad->dma; | |
1530 | ad->port.dma->ops = &ahci_dma_ops; | |
e8ef8743 | 1531 | ide_register_restart_cb(&ad->port); |
f6ad2e32 | 1532 | } |
9d324b0e | 1533 | g_free(irqs); |
f6ad2e32 AG |
1534 | } |
1535 | ||
2c4b9d0e AG |
1536 | void ahci_uninit(AHCIState *s) |
1537 | { | |
d68f0f77 LQ |
1538 | int i, j; |
1539 | ||
1540 | for (i = 0; i < s->ports; i++) { | |
1541 | AHCIDevice *ad = &s->dev[i]; | |
1542 | ||
1543 | for (j = 0; j < 2; j++) { | |
1544 | IDEState *s = &ad->port.ifs[j]; | |
1545 | ||
1546 | ide_exit(s); | |
1547 | } | |
955f5c7b | 1548 | object_unparent(OBJECT(&ad->port)); |
d68f0f77 LQ |
1549 | } |
1550 | ||
7267c094 | 1551 | g_free(s->dev); |
2c4b9d0e AG |
1552 | } |
1553 | ||
8ab60a07 | 1554 | void ahci_reset(AHCIState *s) |
f6ad2e32 | 1555 | { |
a26a13da | 1556 | AHCIPortRegs *pr; |
f6ad2e32 AG |
1557 | int i; |
1558 | ||
e4baa9f0 JS |
1559 | trace_ahci_reset(s); |
1560 | ||
8ab60a07 | 1561 | s->control_regs.irqstatus = 0; |
13164591 MT |
1562 | /* AHCI Enable (AE) |
1563 | * The implementation of this bit is dependent upon the value of the | |
1564 | * CAP.SAM bit. If CAP.SAM is '0', then GHC.AE shall be read-write and | |
1565 | * shall have a reset value of '0'. If CAP.SAM is '1', then AE shall be | |
1566 | * read-only and shall have a reset value of '1'. | |
1567 | * | |
1568 | * We set HOST_CAP_AHCI so we must enable AHCI at reset. | |
1569 | */ | |
1570 | s->control_regs.ghc = HOST_CTL_AHCI_EN; | |
760c3e44 | 1571 | |
8ab60a07 JK |
1572 | for (i = 0; i < s->ports; i++) { |
1573 | pr = &s->dev[i].port_regs; | |
a26a13da AM |
1574 | pr->irq_stat = 0; |
1575 | pr->irq_mask = 0; | |
1576 | pr->scr_ctl = 0; | |
2a4f4f34 | 1577 | pr->cmd = PORT_CMD_SPIN_UP | PORT_CMD_POWER_ON; |
8ab60a07 | 1578 | ahci_reset_port(s, i); |
f6ad2e32 AG |
1579 | } |
1580 | } | |
d9fa31a3 | 1581 | |
684d5013 JS |
1582 | static const VMStateDescription vmstate_ncq_tfs = { |
1583 | .name = "ncq state", | |
1584 | .version_id = 1, | |
1585 | .fields = (VMStateField[]) { | |
1586 | VMSTATE_UINT32(sector_count, NCQTransferState), | |
1587 | VMSTATE_UINT64(lba, NCQTransferState), | |
1588 | VMSTATE_UINT8(tag, NCQTransferState), | |
1589 | VMSTATE_UINT8(cmd, NCQTransferState), | |
1590 | VMSTATE_UINT8(slot, NCQTransferState), | |
1591 | VMSTATE_BOOL(used, NCQTransferState), | |
1592 | VMSTATE_BOOL(halt, NCQTransferState), | |
1593 | VMSTATE_END_OF_LIST() | |
1594 | }, | |
1595 | }; | |
1596 | ||
a2623021 JB |
1597 | static const VMStateDescription vmstate_ahci_device = { |
1598 | .name = "ahci port", | |
1599 | .version_id = 1, | |
d49805ae | 1600 | .fields = (VMStateField[]) { |
a2623021 | 1601 | VMSTATE_IDE_BUS(port, AHCIDevice), |
bd664910 | 1602 | VMSTATE_IDE_DRIVE(port.ifs[0], AHCIDevice), |
a2623021 JB |
1603 | VMSTATE_UINT32(port_state, AHCIDevice), |
1604 | VMSTATE_UINT32(finished, AHCIDevice), | |
1605 | VMSTATE_UINT32(port_regs.lst_addr, AHCIDevice), | |
1606 | VMSTATE_UINT32(port_regs.lst_addr_hi, AHCIDevice), | |
1607 | VMSTATE_UINT32(port_regs.fis_addr, AHCIDevice), | |
1608 | VMSTATE_UINT32(port_regs.fis_addr_hi, AHCIDevice), | |
1609 | VMSTATE_UINT32(port_regs.irq_stat, AHCIDevice), | |
1610 | VMSTATE_UINT32(port_regs.irq_mask, AHCIDevice), | |
1611 | VMSTATE_UINT32(port_regs.cmd, AHCIDevice), | |
1612 | VMSTATE_UINT32(port_regs.tfdata, AHCIDevice), | |
1613 | VMSTATE_UINT32(port_regs.sig, AHCIDevice), | |
1614 | VMSTATE_UINT32(port_regs.scr_stat, AHCIDevice), | |
1615 | VMSTATE_UINT32(port_regs.scr_ctl, AHCIDevice), | |
1616 | VMSTATE_UINT32(port_regs.scr_err, AHCIDevice), | |
1617 | VMSTATE_UINT32(port_regs.scr_act, AHCIDevice), | |
1618 | VMSTATE_UINT32(port_regs.cmd_issue, AHCIDevice), | |
1619 | VMSTATE_BOOL(done_atapi_packet, AHCIDevice), | |
1620 | VMSTATE_INT32(busy_slot, AHCIDevice), | |
1621 | VMSTATE_BOOL(init_d2h_sent, AHCIDevice), | |
684d5013 JS |
1622 | VMSTATE_STRUCT_ARRAY(ncq_tfs, AHCIDevice, AHCI_MAX_CMDS, |
1623 | 1, vmstate_ncq_tfs, NCQTransferState), | |
a2623021 JB |
1624 | VMSTATE_END_OF_LIST() |
1625 | }, | |
1626 | }; | |
1627 | ||
1628 | static int ahci_state_post_load(void *opaque, int version_id) | |
1629 | { | |
684d5013 | 1630 | int i, j; |
a2623021 | 1631 | struct AHCIDevice *ad; |
684d5013 | 1632 | NCQTransferState *ncq_tfs; |
f8a6c5f3 | 1633 | AHCIPortRegs *pr; |
a2623021 JB |
1634 | AHCIState *s = opaque; |
1635 | ||
1636 | for (i = 0; i < s->ports; i++) { | |
1637 | ad = &s->dev[i]; | |
f8a6c5f3 JS |
1638 | pr = &ad->port_regs; |
1639 | ||
1640 | if (!(pr->cmd & PORT_CMD_START) && (pr->cmd & PORT_CMD_LIST_ON)) { | |
1641 | error_report("AHCI: DMA engine should be off, but status bit " | |
1642 | "indicates it is still running."); | |
1643 | return -1; | |
1644 | } | |
1645 | if (!(pr->cmd & PORT_CMD_FIS_RX) && (pr->cmd & PORT_CMD_FIS_ON)) { | |
1646 | error_report("AHCI: FIS RX engine should be off, but status bit " | |
1647 | "indicates it is still running."); | |
1648 | return -1; | |
1649 | } | |
a2623021 | 1650 | |
d5904749 JS |
1651 | /* After a migrate, the DMA/FIS engines are "off" and |
1652 | * need to be conditionally restarted */ | |
1653 | pr->cmd &= ~(PORT_CMD_LIST_ON | PORT_CMD_FIS_ON); | |
1654 | if (ahci_cond_start_engines(ad) != 0) { | |
cd6cb73b JS |
1655 | return -1; |
1656 | } | |
1657 | ||
684d5013 JS |
1658 | for (j = 0; j < AHCI_MAX_CMDS; j++) { |
1659 | ncq_tfs = &ad->ncq_tfs[j]; | |
1660 | ncq_tfs->drive = ad; | |
1661 | ||
1662 | if (ncq_tfs->used != ncq_tfs->halt) { | |
1663 | return -1; | |
1664 | } | |
1665 | if (!ncq_tfs->halt) { | |
1666 | continue; | |
1667 | } | |
1668 | if (!is_ncq(ncq_tfs->cmd)) { | |
1669 | return -1; | |
1670 | } | |
1671 | if (ncq_tfs->slot != ncq_tfs->tag) { | |
1672 | return -1; | |
1673 | } | |
1674 | /* If ncq_tfs->halt is justly set, the engine should be engaged, | |
1675 | * and the command list buffer should be mapped. */ | |
1676 | ncq_tfs->cmdh = get_cmd_header(s, i, ncq_tfs->slot); | |
1677 | if (!ncq_tfs->cmdh) { | |
1678 | return -1; | |
1679 | } | |
1680 | ahci_populate_sglist(ncq_tfs->drive, &ncq_tfs->sglist, | |
1681 | ncq_tfs->cmdh, ncq_tfs->sector_count * 512, | |
1682 | 0); | |
1683 | if (ncq_tfs->sector_count != ncq_tfs->sglist.size >> 9) { | |
1684 | return -1; | |
1685 | } | |
1686 | } | |
1687 | ||
1688 | ||
a2623021 | 1689 | /* |
e8ef8743 PB |
1690 | * If an error is present, ad->busy_slot will be valid and not -1. |
1691 | * In this case, an operation is waiting to resume and will re-check | |
1692 | * for additional AHCI commands to execute upon completion. | |
1693 | * | |
1694 | * In the case where no error was present, busy_slot will be -1, | |
1695 | * and we should check to see if there are additional commands waiting. | |
a2623021 | 1696 | */ |
e8ef8743 PB |
1697 | if (ad->busy_slot == -1) { |
1698 | check_cmd(s, i); | |
c27c73aa JS |
1699 | } else { |
1700 | /* We are in the middle of a command, and may need to access | |
1701 | * the command header in guest memory again. */ | |
1702 | if (ad->busy_slot < 0 || ad->busy_slot >= AHCI_MAX_CMDS) { | |
1703 | return -1; | |
1704 | } | |
ee364416 | 1705 | ad->cur_cmd = get_cmd_header(s, i, ad->busy_slot); |
a2623021 | 1706 | } |
a2623021 JB |
1707 | } |
1708 | ||
1709 | return 0; | |
1710 | } | |
1711 | ||
1712 | const VMStateDescription vmstate_ahci = { | |
1713 | .name = "ahci", | |
1714 | .version_id = 1, | |
1715 | .post_load = ahci_state_post_load, | |
d49805ae | 1716 | .fields = (VMStateField[]) { |
a2623021 JB |
1717 | VMSTATE_STRUCT_VARRAY_POINTER_INT32(dev, AHCIState, ports, |
1718 | vmstate_ahci_device, AHCIDevice), | |
1719 | VMSTATE_UINT32(control_regs.cap, AHCIState), | |
1720 | VMSTATE_UINT32(control_regs.ghc, AHCIState), | |
1721 | VMSTATE_UINT32(control_regs.irqstatus, AHCIState), | |
1722 | VMSTATE_UINT32(control_regs.impl, AHCIState), | |
1723 | VMSTATE_UINT32(control_regs.version, AHCIState), | |
1724 | VMSTATE_UINT32(idp_index, AHCIState), | |
d2164ad3 | 1725 | VMSTATE_INT32_EQUAL(ports, AHCIState, NULL), |
a2623021 JB |
1726 | VMSTATE_END_OF_LIST() |
1727 | }, | |
1728 | }; | |
1729 | ||
d9fa31a3 RH |
1730 | static const VMStateDescription vmstate_sysbus_ahci = { |
1731 | .name = "sysbus-ahci", | |
d49805ae | 1732 | .fields = (VMStateField[]) { |
bd164307 | 1733 | VMSTATE_AHCI(ahci, SysbusAHCIState), |
a2623021 JB |
1734 | VMSTATE_END_OF_LIST() |
1735 | }, | |
d9fa31a3 RH |
1736 | }; |
1737 | ||
8ab60a07 JK |
1738 | static void sysbus_ahci_reset(DeviceState *dev) |
1739 | { | |
b3b162c3 | 1740 | SysbusAHCIState *s = SYSBUS_AHCI(dev); |
8ab60a07 JK |
1741 | |
1742 | ahci_reset(&s->ahci); | |
1743 | } | |
1744 | ||
0487eea4 | 1745 | static void sysbus_ahci_init(Object *obj) |
d9fa31a3 | 1746 | { |
0487eea4 PC |
1747 | SysbusAHCIState *s = SYSBUS_AHCI(obj); |
1748 | SysBusDevice *sbd = SYS_BUS_DEVICE(obj); | |
d9fa31a3 | 1749 | |
0487eea4 | 1750 | ahci_init(&s->ahci, DEVICE(obj)); |
7acb423f HT |
1751 | |
1752 | sysbus_init_mmio(sbd, &s->ahci.mem); | |
1753 | sysbus_init_irq(sbd, &s->ahci.irq); | |
d9fa31a3 RH |
1754 | } |
1755 | ||
0487eea4 PC |
1756 | static void sysbus_ahci_realize(DeviceState *dev, Error **errp) |
1757 | { | |
1758 | SysbusAHCIState *s = SYSBUS_AHCI(dev); | |
1759 | ||
1760 | ahci_realize(&s->ahci, dev, &address_space_memory, s->num_ports); | |
1761 | } | |
1762 | ||
39bffca2 AL |
1763 | static Property sysbus_ahci_properties[] = { |
1764 | DEFINE_PROP_UINT32("num-ports", SysbusAHCIState, num_ports, 1), | |
1765 | DEFINE_PROP_END_OF_LIST(), | |
1766 | }; | |
1767 | ||
999e12bb AL |
1768 | static void sysbus_ahci_class_init(ObjectClass *klass, void *data) |
1769 | { | |
39bffca2 | 1770 | DeviceClass *dc = DEVICE_CLASS(klass); |
999e12bb | 1771 | |
7acb423f | 1772 | dc->realize = sysbus_ahci_realize; |
39bffca2 AL |
1773 | dc->vmsd = &vmstate_sysbus_ahci; |
1774 | dc->props = sysbus_ahci_properties; | |
8ab60a07 | 1775 | dc->reset = sysbus_ahci_reset; |
125ee0ed | 1776 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
999e12bb AL |
1777 | } |
1778 | ||
8c43a6f0 | 1779 | static const TypeInfo sysbus_ahci_info = { |
b3b162c3 | 1780 | .name = TYPE_SYSBUS_AHCI, |
39bffca2 AL |
1781 | .parent = TYPE_SYS_BUS_DEVICE, |
1782 | .instance_size = sizeof(SysbusAHCIState), | |
0487eea4 | 1783 | .instance_init = sysbus_ahci_init, |
39bffca2 | 1784 | .class_init = sysbus_ahci_class_init, |
d9fa31a3 RH |
1785 | }; |
1786 | ||
83f7d43a | 1787 | static void sysbus_ahci_register_types(void) |
d9fa31a3 | 1788 | { |
39bffca2 | 1789 | type_register_static(&sysbus_ahci_info); |
d9fa31a3 RH |
1790 | } |
1791 | ||
83f7d43a | 1792 | type_init(sysbus_ahci_register_types) |
d93162e1 | 1793 | |
bbe3179a JS |
1794 | int32_t ahci_get_num_ports(PCIDevice *dev) |
1795 | { | |
1796 | AHCIPCIState *d = ICH_AHCI(dev); | |
1797 | AHCIState *ahci = &d->ahci; | |
1798 | ||
1799 | return ahci->ports; | |
1800 | } | |
1801 | ||
d93162e1 JS |
1802 | void ahci_ide_create_devs(PCIDevice *dev, DriveInfo **hd) |
1803 | { | |
1804 | AHCIPCIState *d = ICH_AHCI(dev); | |
1805 | AHCIState *ahci = &d->ahci; | |
1806 | int i; | |
1807 | ||
1808 | for (i = 0; i < ahci->ports; i++) { | |
1809 | if (hd[i] == NULL) { | |
1810 | continue; | |
1811 | } | |
1812 | ide_create_drive(&ahci->dev[i].port, 0, hd[i]); | |
1813 | } | |
1814 | ||
1815 | } |