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target-arm queue:

Browse Source 
* implement or fix various EL3 trap behaviour for system registers
  * clean up the trap/undef handling of the SRS instruction
  * add some missing AArch64 performance monitor system registers
  * implement reset for the PL061 GPIO device
  * QOMify sd.c and the pxa2xx_mmci device
  * SD card emulation fixes for booting Tianocore UEFI on RPi2
  * QOMify various ARM timer devices
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20160218-1' into staging

target-arm queue:
 * implement or fix various EL3 trap behaviour for system registers
 * clean up the trap/undef handling of the SRS instruction
 * add some missing AArch64 performance monitor system registers
 * implement reset for the PL061 GPIO device
 * QOMify sd.c and the pxa2xx_mmci device
 * SD card emulation fixes for booting Tianocore UEFI on RPi2
 * QOMify various ARM timer devices

# gpg: Signature made Thu 18 Feb 2016 15:19:31 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"

* remotes/pmaydell/tags/pull-target-arm-20160218-1: (36 commits)
  hw/timer: QOM'ify pxa2xx_timer
  hw/timer: QOM'ify pl031
  hw/timer: QOM'ify exynos4210_rtc
  hw/timer: QOM'ify exynos4210_pwm
  hw/timer: QOM'ify exynos4210_mct
  hw/timer: QOM'ify arm_timer (pass 2)
  hw/timer: QOM'ify arm_timer (pass 1)
  hw/sd: use guest error logging rather than fprintf to stderr
  hw/sd: model a power-up delay, as a workaround for an EDK2 bug
  hw/sd: implement CMD23 (SET_BLOCK_COUNT) for MMC compatibility
  hw/sd/pxa2xx_mmci: Add reset function
  hw/sd/pxa2xx_mmci: Convert to VMStateDescription
  hw/sd/pxa2xx_mmci: Update to use new SDBus APIs
  hw/sd/pxa2xx_mmci: convert to SysBusDevice object
  sdhci_sysbus: Create SD card device in users, not the device itself
  hw/sd/sdhci.c: Update to use SDBus APIs
  hw/sd: Add QOM bus which SD cards plug in to
  hw/sd/sd.c: Convert sd_reset() function into Device reset method
  hw/sd/sd.c: QOMify
  hw/sd/sdhci.c: Remove x-drive property
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2016-02-18 15:20:35 +00:00
commit dd5e38b19d
25 changed files with 1149 additions and 353 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
hw/arm/xilinx_zynq.c
View File

@ -28,6 +28,7 @@
#include "hw/misc/zynq-xadc.h"
#include "hw/ssi/ssi.h"
#include "qemu/error-report.h"
#include "hw/sd/sd.h"
#define NUM_SPI_FLASHES 4
#define NUM_QSPI_FLASHES 2
@ -154,8 +155,10 @@ static void zynq_init(MachineState *machine)
MemoryRegion *address_space_mem = get_system_memory();
MemoryRegion *ext_ram = g_new(MemoryRegion, 1);
MemoryRegion *ocm_ram = g_new(MemoryRegion, 1);
DeviceState *dev;
DeviceState *dev, *carddev;
SysBusDevice *busdev;
DriveInfo *di;
BlockBackend *blk;
qemu_irq pic[64];
int n;
@ -245,11 +248,23 @@ static void zynq_init(MachineState *machine)
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xE0100000);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[56-IRQ_OFFSET]);
di = drive_get_next(IF_SD);
blk = di ? blk_by_legacy_dinfo(di) : NULL;
carddev = qdev_create(qdev_get_child_bus(dev, "sd-bus"), TYPE_SD_CARD);
qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
object_property_set_bool(OBJECT(carddev), true, "realized", &error_fatal);
dev = qdev_create(NULL, "generic-sdhci");
qdev_init_nofail(dev);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xE0101000);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[79-IRQ_OFFSET]);
di = drive_get_next(IF_SD);
blk = di ? blk_by_legacy_dinfo(di) : NULL;
carddev = qdev_create(qdev_get_child_bus(dev, "sd-bus"), TYPE_SD_CARD);
qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
object_property_set_bool(OBJECT(carddev), true, "realized", &error_fatal);
dev = qdev_create(NULL, TYPE_ZYNQ_XADC);
qdev_init_nofail(dev);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xF8007100);

21
hw/arm/xlnx-ep108.c
View File

@ -59,6 +59,27 @@ static void xlnx_ep108_init(MachineState *machine)
object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_fatal);
/* Create and plug in the SD cards */
for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
BusState *bus;
DriveInfo *di = drive_get_next(IF_SD);
BlockBackend *blk = di ? blk_by_legacy_dinfo(di) : NULL;
DeviceState *carddev;
char *bus_name;
bus_name = g_strdup_printf("sd-bus%d", i);
bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
g_free(bus_name);
if (!bus) {
error_report("No SD bus found for SD card %d", i);
exit(1);
}
carddev = qdev_create(bus, TYPE_SD_CARD);
qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
object_property_set_bool(OBJECT(carddev), true, "realized",
&error_fatal);
}
for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {
SSIBus *spi_bus;
DeviceState *flash_dev;

8
hw/arm/xlnx-zynqmp.c
View File

@ -327,6 +327,8 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
sysbus_connect_irq(SYS_BUS_DEVICE(&s->sata), 0, gic_spi[SATA_INTR]);
for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
char *bus_name;
object_property_set_bool(OBJECT(&s->sdhci[i]), true,
"realized", &err);
if (err) {
@ -337,6 +339,12 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
sdhci_addr[i]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->sdhci[i]), 0,
gic_spi[sdhci_intr[i]]);
/* Alias controller SD bus to the SoC itself */
bus_name = g_strdup_printf("sd-bus%d", i);
object_property_add_alias(OBJECT(s), bus_name,
OBJECT(&s->sdhci[i]), "sd-bus",
&error_abort);
g_free(bus_name);
}
for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {

33
hw/gpio/pl061.c
View File

@ -56,7 +56,6 @@ typedef struct PL061State {
uint32_t slr;
uint32_t den;
uint32_t cr;
uint32_t float_high;
uint32_t amsel;
qemu_irq irq;
qemu_irq out[8];
@ -65,8 +64,8 @@ typedef struct PL061State {
static const VMStateDescription vmstate_pl061 = {
.name = "pl061",
.version_id = 3,
.minimum_version_id = 3,
.version_id = 4,
.minimum_version_id = 4,
.fields = (VMStateField[]) {
VMSTATE_UINT32(locked, PL061State),
VMSTATE_UINT32(data, PL061State),
@ -88,7 +87,6 @@ static const VMStateDescription vmstate_pl061 = {
VMSTATE_UINT32(slr, PL061State),
VMSTATE_UINT32(den, PL061State),
VMSTATE_UINT32(cr, PL061State),
VMSTATE_UINT32(float_high, PL061State),
VMSTATE_UINT32_V(amsel, PL061State, 2),
VMSTATE_END_OF_LIST()
}
@ -282,10 +280,32 @@ static void pl061_write(void *opaque, hwaddr offset,
pl061_update(s);
}
static void pl061_reset(PL061State *s)
static void pl061_reset(DeviceState *dev)
{
PL061State *s = PL061(dev);
/* reset values from PL061 TRM, Stellaris LM3S5P31 & LM3S8962 Data Sheet */
s->data = 0;
s->old_out_data = 0;
s->old_in_data = 0;
s->dir = 0;
s->isense = 0;
s->ibe = 0;
s->iev = 0;
s->im = 0;
s->istate = 0;
s->afsel = 0;
s->dr2r = 0xff;
s->dr4r = 0;
s->dr8r = 0;
s->odr = 0;
s->pur = 0;
s->pdr = 0;
s->slr = 0;
s->den = 0;
s->locked = 1;
s->cr = 0xff;
s->amsel = 0;
}
static void pl061_set_irq(void * opaque, int irq, int level)
@ -318,7 +338,7 @@ static int pl061_initfn(SysBusDevice *sbd)
sysbus_init_irq(sbd, &s->irq);
qdev_init_gpio_in(dev, pl061_set_irq, 8);
qdev_init_gpio_out(dev, s->out, 8);
pl061_reset(s);
return 0;
}
@ -343,6 +363,7 @@ static void pl061_class_init(ObjectClass *klass, void *data)
k->init = pl061_initfn;
dc->vmsd = &vmstate_pl061;
dc->reset = &pl061_reset;
}
static const TypeInfo pl061_info = {

2
hw/sd/Makefile.objs
View File

@ -1,6 +1,6 @@
common-obj-$(CONFIG_PL181) += pl181.o
common-obj-$(CONFIG_SSI_SD) += ssi-sd.o
common-obj-$(CONFIG_SD) += sd.o
common-obj-$(CONFIG_SD) += sd.o core.o
common-obj-$(CONFIG_SDHCI) += sdhci.o
obj-$(CONFIG_MILKYMIST) += milkymist-memcard.o

146
hw/sd/core.c Normal file
View File

@ -0,0 +1,146 @@
/*
* SD card bus interface code.
*
* Copyright (c) 2015 Linaro Limited
*
* Author:
* Peter Maydell <peter.maydell@linaro.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2 or later, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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/>.
*/
#include "qemu/osdep.h"
#include "hw/qdev-core.h"
#include "sysemu/block-backend.h"
#include "hw/sd/sd.h"
static SDState *get_card(SDBus *sdbus)
{
/* We only ever have one child on the bus so just return it */
BusChild *kid = QTAILQ_FIRST(&sdbus->qbus.children);
if (!kid) {
return NULL;
}
return SD_CARD(kid->child);
}
int sdbus_do_command(SDBus *sdbus, SDRequest *req, uint8_t *response)
{
SDState *card = get_card(sdbus);
if (card) {
SDCardClass *sc = SD_CARD_GET_CLASS(card);
return sc->do_command(card, req, response);
}
return 0;
}
void sdbus_write_data(SDBus *sdbus, uint8_t value)
{
SDState *card = get_card(sdbus);
if (card) {
SDCardClass *sc = SD_CARD_GET_CLASS(card);
sc->write_data(card, value);
}
}
uint8_t sdbus_read_data(SDBus *sdbus)
{
SDState *card = get_card(sdbus);
if (card) {
SDCardClass *sc = SD_CARD_GET_CLASS(card);
return sc->read_data(card);
}
return 0;
}
bool sdbus_data_ready(SDBus *sdbus)
{
SDState *card = get_card(sdbus);
if (card) {
SDCardClass *sc = SD_CARD_GET_CLASS(card);
return sc->data_ready(card);
}
return false;
}
bool sdbus_get_inserted(SDBus *sdbus)
{
SDState *card = get_card(sdbus);
if (card) {
SDCardClass *sc = SD_CARD_GET_CLASS(card);
return sc->get_inserted(card);
}
return false;
}
bool sdbus_get_readonly(SDBus *sdbus)
{
SDState *card = get_card(sdbus);
if (card) {
SDCardClass *sc = SD_CARD_GET_CLASS(card);
return sc->get_readonly(card);
}
return false;
}
void sdbus_set_inserted(SDBus *sdbus, bool inserted)
{
SDBusClass *sbc = SD_BUS_GET_CLASS(sdbus);
BusState *qbus = BUS(sdbus);
if (sbc->set_inserted) {
sbc->set_inserted(qbus->parent, inserted);
}
}
void sdbus_set_readonly(SDBus *sdbus, bool readonly)
{
SDBusClass *sbc = SD_BUS_GET_CLASS(sdbus);
BusState *qbus = BUS(sdbus);
if (sbc->set_readonly) {
sbc->set_readonly(qbus->parent, readonly);
}
}
static const TypeInfo sd_bus_info = {
.name = TYPE_SD_BUS,
.parent = TYPE_BUS,
.instance_size = sizeof(SDBus),
.class_size = sizeof(SDBusClass),
};
static void sd_bus_register_types(void)
{
type_register_static(&sd_bus_info);
}
type_init(sd_bus_register_types)

310
hw/sd/pxa2xx_mmci.c
View File

@ -12,17 +12,31 @@
#include "qemu/osdep.h"
#include "hw/hw.h"
#include "hw/sysbus.h"
#include "hw/arm/pxa.h"
#include "hw/sd/sd.h"
#include "hw/qdev.h"
#include "hw/qdev-properties.h"
#include "qemu/error-report.h"
#define TYPE_PXA2XX_MMCI "pxa2xx-mmci"
#define PXA2XX_MMCI(obj) OBJECT_CHECK(PXA2xxMMCIState, (obj), TYPE_PXA2XX_MMCI)
#define TYPE_PXA2XX_MMCI_BUS "pxa2xx-mmci-bus"
#define PXA2XX_MMCI_BUS(obj) OBJECT_CHECK(SDBus, (obj), TYPE_PXA2XX_MMCI_BUS)
struct PXA2xxMMCIState {
SysBusDevice parent_obj;
MemoryRegion iomem;
qemu_irq irq;
qemu_irq rx_dma;
qemu_irq tx_dma;
qemu_irq inserted;
qemu_irq readonly;
SDState *card;
BlockBackend *blk;
SDBus sdbus;
uint32_t status;
uint32_t clkrt;
@ -30,25 +44,70 @@ struct PXA2xxMMCIState {
uint32_t cmdat;
uint32_t resp_tout;
uint32_t read_tout;
int blklen;
int numblk;
int32_t blklen;
int32_t numblk;
uint32_t intmask;
uint32_t intreq;
int cmd;
int32_t cmd;
uint32_t arg;
int active;
int bytesleft;
int32_t active;
int32_t bytesleft;
uint8_t tx_fifo[64];
int tx_start;
int tx_len;
uint32_t tx_start;
uint32_t tx_len;
uint8_t rx_fifo[32];
int rx_start;
int rx_len;
uint32_t rx_start;
uint32_t rx_len;
uint16_t resp_fifo[9];
int resp_len;
uint32_t resp_len;
int cmdreq;
int32_t cmdreq;
};
static bool pxa2xx_mmci_vmstate_validate(void *opaque, int version_id)
{
PXA2xxMMCIState *s = opaque;
return s->tx_start < ARRAY_SIZE(s->tx_fifo)
&& s->rx_start < ARRAY_SIZE(s->rx_fifo)
&& s->tx_len <= ARRAY_SIZE(s->tx_fifo)
&& s->rx_len <= ARRAY_SIZE(s->rx_fifo)
&& s->resp_len <= ARRAY_SIZE(s->resp_fifo);
}
static const VMStateDescription vmstate_pxa2xx_mmci = {
.name = "pxa2xx-mmci",
.version_id = 2,
.minimum_version_id = 2,
.fields = (VMStateField[]) {
VMSTATE_UINT32(status, PXA2xxMMCIState),
VMSTATE_UINT32(clkrt, PXA2xxMMCIState),
VMSTATE_UINT32(spi, PXA2xxMMCIState),
VMSTATE_UINT32(cmdat, PXA2xxMMCIState),
VMSTATE_UINT32(resp_tout, PXA2xxMMCIState),
VMSTATE_UINT32(read_tout, PXA2xxMMCIState),
VMSTATE_INT32(blklen, PXA2xxMMCIState),
VMSTATE_INT32(numblk, PXA2xxMMCIState),
VMSTATE_UINT32(intmask, PXA2xxMMCIState),
VMSTATE_UINT32(intreq, PXA2xxMMCIState),
VMSTATE_INT32(cmd, PXA2xxMMCIState),
VMSTATE_UINT32(arg, PXA2xxMMCIState),
VMSTATE_INT32(cmdreq, PXA2xxMMCIState),
VMSTATE_INT32(active, PXA2xxMMCIState),
VMSTATE_INT32(bytesleft, PXA2xxMMCIState),
VMSTATE_UINT32(tx_start, PXA2xxMMCIState),
VMSTATE_UINT32(tx_len, PXA2xxMMCIState),
VMSTATE_UINT32(rx_start, PXA2xxMMCIState),
VMSTATE_UINT32(rx_len, PXA2xxMMCIState),
VMSTATE_UINT32(resp_len, PXA2xxMMCIState),
VMSTATE_VALIDATE("fifo size incorrect", pxa2xx_mmci_vmstate_validate),
VMSTATE_UINT8_ARRAY(tx_fifo, PXA2xxMMCIState, 64),
VMSTATE_UINT8_ARRAY(rx_fifo, PXA2xxMMCIState, 32),
VMSTATE_UINT16_ARRAY(resp_fifo, PXA2xxMMCIState, 9),
VMSTATE_END_OF_LIST()
}
};
#define MMC_STRPCL 0x00 /* MMC Clock Start/Stop register */
@ -122,7 +181,7 @@ static void pxa2xx_mmci_fifo_update(PXA2xxMMCIState *s)
if (s->cmdat & CMDAT_WR_RD) {
while (s->bytesleft && s->tx_len) {
sd_write_data(s->card, s->tx_fifo[s->tx_start ++]);
sdbus_write_data(&s->sdbus, s->tx_fifo[s->tx_start++]);
s->tx_start &= 0x1f;
s->tx_len --;
s->bytesleft --;
@ -132,7 +191,7 @@ static void pxa2xx_mmci_fifo_update(PXA2xxMMCIState *s)
} else
while (s->bytesleft && s->rx_len < 32) {
s->rx_fifo[(s->rx_start + (s->rx_len ++)) & 0x1f] =
sd_read_data(s->card);
sdbus_read_data(&s->sdbus);
s->bytesleft --;
s->intreq |= INT_RXFIFO_REQ;
}
@ -166,7 +225,7 @@ static void pxa2xx_mmci_wakequeues(PXA2xxMMCIState *s)
request.arg = s->arg;
request.crc = 0; /* FIXME */
rsplen = sd_do_command(s->card, &request, response);
rsplen = sdbus_do_command(&s->sdbus, &request, response);
s->intreq |= INT_END_CMD;
memset(s->resp_fifo, 0, sizeof(s->resp_fifo));
@ -392,114 +451,147 @@ static const MemoryRegionOps pxa2xx_mmci_ops = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void pxa2xx_mmci_save(QEMUFile *f, void *opaque)
{
PXA2xxMMCIState *s = (PXA2xxMMCIState *) opaque;
int i;
qemu_put_be32s(f, &s->status);
qemu_put_be32s(f, &s->clkrt);
qemu_put_be32s(f, &s->spi);
qemu_put_be32s(f, &s->cmdat);
qemu_put_be32s(f, &s->resp_tout);
qemu_put_be32s(f, &s->read_tout);
qemu_put_be32(f, s->blklen);
qemu_put_be32(f, s->numblk);
qemu_put_be32s(f, &s->intmask);
qemu_put_be32s(f, &s->intreq);
qemu_put_be32(f, s->cmd);
qemu_put_be32s(f, &s->arg);
qemu_put_be32(f, s->cmdreq);
qemu_put_be32(f, s->active);
qemu_put_be32(f, s->bytesleft);
qemu_put_byte(f, s->tx_len);
for (i = 0; i < s->tx_len; i ++)
qemu_put_byte(f, s->tx_fifo[(s->tx_start + i) & 63]);
qemu_put_byte(f, s->rx_len);
for (i = 0; i < s->rx_len; i ++)
qemu_put_byte(f, s->rx_fifo[(s->rx_start + i) & 31]);
qemu_put_byte(f, s->resp_len);
for (i = s->resp_len; i < 9; i ++)
qemu_put_be16s(f, &s->resp_fifo[i]);
}
static int pxa2xx_mmci_load(QEMUFile *f, void *opaque, int version_id)
{
PXA2xxMMCIState *s = (PXA2xxMMCIState *) opaque;
int i;
qemu_get_be32s(f, &s->status);
qemu_get_be32s(f, &s->clkrt);
qemu_get_be32s(f, &s->spi);
qemu_get_be32s(f, &s->cmdat);
qemu_get_be32s(f, &s->resp_tout);
qemu_get_be32s(f, &s->read_tout);
s->blklen = qemu_get_be32(f);
s->numblk = qemu_get_be32(f);
qemu_get_be32s(f, &s->intmask);
qemu_get_be32s(f, &s->intreq);
s->cmd = qemu_get_be32(f);
qemu_get_be32s(f, &s->arg);
s->cmdreq = qemu_get_be32(f);
s->active = qemu_get_be32(f);
s->bytesleft = qemu_get_be32(f);
s->tx_len = qemu_get_byte(f);
s->tx_start = 0;
if (s->tx_len >= sizeof(s->tx_fifo) || s->tx_len < 0)
return -EINVAL;
for (i = 0; i < s->tx_len; i ++)
s->tx_fifo[i] = qemu_get_byte(f);
s->rx_len = qemu_get_byte(f);
s->rx_start = 0;
if (s->rx_len >= sizeof(s->rx_fifo) || s->rx_len < 0)
return -EINVAL;
for (i = 0; i < s->rx_len; i ++)
s->rx_fifo[i] = qemu_get_byte(f);
s->resp_len = qemu_get_byte(f);
if (s->resp_len > 9 || s->resp_len < 0)
return -EINVAL;
for (i = s->resp_len; i < 9; i ++)
qemu_get_be16s(f, &s->resp_fifo[i]);
return 0;
}
PXA2xxMMCIState *pxa2xx_mmci_init(MemoryRegion *sysmem,
hwaddr base,
BlockBackend *blk, qemu_irq irq,
qemu_irq rx_dma, qemu_irq tx_dma)
{
DeviceState *dev, *carddev;
SysBusDevice *sbd;
PXA2xxMMCIState *s;
Error *err = NULL;
s = (PXA2xxMMCIState *) g_malloc0(sizeof(PXA2xxMMCIState));
s->irq = irq;
s->rx_dma = rx_dma;
s->tx_dma = tx_dma;
dev = qdev_create(NULL, TYPE_PXA2XX_MMCI);
s = PXA2XX_MMCI(dev);
sbd = SYS_BUS_DEVICE(dev);
sysbus_mmio_map(sbd, 0, base);
sysbus_connect_irq(sbd, 0, irq);
qdev_connect_gpio_out_named(dev, "rx-dma", 0, rx_dma);
qdev_connect_gpio_out_named(dev, "tx-dma", 0, tx_dma);
memory_region_init_io(&s->iomem, NULL, &pxa2xx_mmci_ops, s,
"pxa2xx-mmci", 0x00100000);
memory_region_add_subregion(sysmem, base, &s->iomem);
/* Instantiate the actual storage */
s->card = sd_init(blk, false);
if (s->card == NULL) {
exit(1);
/* Create and plug in the sd card */
carddev = qdev_create(qdev_get_child_bus(dev, "sd-bus"), TYPE_SD_CARD);
qdev_prop_set_drive(carddev, "drive", blk, &err);
if (err) {
error_report("failed to init SD card: %s", error_get_pretty(err));
return NULL;
}
object_property_set_bool(OBJECT(carddev), true, "realized", &err);
if (err) {
error_report("failed to init SD card: %s", error_get_pretty(err));
return NULL;
}
register_savevm(NULL, "pxa2xx_mmci", 0, 0,
pxa2xx_mmci_save, pxa2xx_mmci_load, s);
return s;
}
static void pxa2xx_mmci_set_inserted(DeviceState *dev, bool inserted)
{
PXA2xxMMCIState *s = PXA2XX_MMCI(dev);
qemu_set_irq(s->inserted, inserted);
}
static void pxa2xx_mmci_set_readonly(DeviceState *dev, bool readonly)
{
PXA2xxMMCIState *s = PXA2XX_MMCI(dev);
qemu_set_irq(s->readonly, readonly);
}
void pxa2xx_mmci_handlers(PXA2xxMMCIState *s, qemu_irq readonly,
qemu_irq coverswitch)
{
sd_set_cb(s->card, readonly, coverswitch);
DeviceState *dev = DEVICE(s);
s->readonly = readonly;
s->inserted = coverswitch;
pxa2xx_mmci_set_inserted(dev, sdbus_get_inserted(&s->sdbus));
pxa2xx_mmci_set_readonly(dev, sdbus_get_readonly(&s->sdbus));
}
static void pxa2xx_mmci_reset(DeviceState *d)
{
PXA2xxMMCIState *s = PXA2XX_MMCI(d);
s->status = 0;
s->clkrt = 0;
s->spi = 0;
s->cmdat = 0;
s->resp_tout = 0;
s->read_tout = 0;
s->blklen = 0;
s->numblk = 0;
s->intmask = 0;
s->intreq = 0;
s->cmd = 0;
s->arg = 0;
s->active = 0;
s->bytesleft = 0;
s->tx_start = 0;
s->tx_len = 0;
s->rx_start = 0;
s->rx_len = 0;
s->resp_len = 0;
s->cmdreq = 0;
memset(s->tx_fifo, 0, sizeof(s->tx_fifo));
memset(s->rx_fifo, 0, sizeof(s->rx_fifo));
memset(s->resp_fifo, 0, sizeof(s->resp_fifo));
}
static void pxa2xx_mmci_instance_init(Object *obj)
{
PXA2xxMMCIState *s = PXA2XX_MMCI(obj);
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
DeviceState *dev = DEVICE(obj);
memory_region_init_io(&s->iomem, obj, &pxa2xx_mmci_ops, s,
"pxa2xx-mmci", 0x00100000);
sysbus_init_mmio(sbd, &s->iomem);
sysbus_init_irq(sbd, &s->irq);
qdev_init_gpio_out_named(dev, &s->rx_dma, "rx-dma", 1);
qdev_init_gpio_out_named(dev, &s->tx_dma, "tx-dma", 1);
qbus_create_inplace(&s->sdbus, sizeof(s->sdbus),
TYPE_PXA2XX_MMCI_BUS, DEVICE(obj), "sd-bus");
}
static void pxa2xx_mmci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->vmsd = &vmstate_pxa2xx_mmci;
dc->reset = pxa2xx_mmci_reset;
}
static void pxa2xx_mmci_bus_class_init(ObjectClass *klass, void *data)
{
SDBusClass *sbc = SD_BUS_CLASS(klass);
sbc->set_inserted = pxa2xx_mmci_set_inserted;
sbc->set_readonly = pxa2xx_mmci_set_readonly;
}
static const TypeInfo pxa2xx_mmci_info = {
.name = TYPE_PXA2XX_MMCI,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(PXA2xxMMCIState),
.instance_init = pxa2xx_mmci_instance_init,
.class_init = pxa2xx_mmci_class_init,
};
static const TypeInfo pxa2xx_mmci_bus_info = {
.name = TYPE_PXA2XX_MMCI_BUS,
.parent = TYPE_SD_BUS,
.instance_size = sizeof(SDBus),
.class_init = pxa2xx_mmci_bus_class_init,
};
static void pxa2xx_mmci_register_types(void)
{
type_register_static(&pxa2xx_mmci_info);
type_register_static(&pxa2xx_mmci_bus_info);
}
type_init(pxa2xx_mmci_register_types)

287
hw/sd/sd.c
View File

@ -30,10 +30,14 @@
*/
#include "qemu/osdep.h"
#include "hw/qdev.h"
#include "hw/hw.h"
#include "sysemu/block-backend.h"
#include "hw/sd/sd.h"
#include "qemu/bitmap.h"
#include "hw/qdev-properties.h"
#include "qemu/error-report.h"
#include "qemu/timer.h"
//#define DEBUG_SD 1
@ -45,6 +49,8 @@ do { fprintf(stderr, "SD: " fmt , ## __VA_ARGS__); } while (0)
#endif
#define ACMD41_ENQUIRY_MASK 0x00ffffff
#define OCR_POWER_UP 0x80000000
#define OCR_POWER_DELAY_NS 500000 /* 0.5ms */
typedef enum {
sd_r0 = 0, /* no response */
@ -78,9 +84,12 @@ enum SDCardStates {
};
struct SDState {
DeviceState parent_obj;
uint32_t mode; /* current card mode, one of SDCardModes */
int32_t state; /* current card state, one of SDCardStates */
uint32_t ocr;
QEMUTimer *ocr_power_timer;
uint8_t scr[8];
uint8_t cid[16];
uint8_t csd[16];
@ -93,6 +102,7 @@ struct SDState {
int32_t wpgrps_size;
uint64_t size;
uint32_t blk_len;
uint32_t multi_blk_cnt;
uint32_t erase_start;
uint32_t erase_end;
uint8_t pwd[16];
@ -194,8 +204,17 @@ static uint16_t sd_crc16(void *message, size_t width)
static void sd_set_ocr(SDState *sd)
{
/* All voltages OK, card power-up OK, Standard Capacity SD Memory Card */
sd->ocr = 0x80ffff00;
/* All voltages OK, Standard Capacity SD Memory Card, not yet powered up */
sd->ocr = 0x00ffff00;
}
static void sd_ocr_powerup(void *opaque)
{
SDState *sd = opaque;
/* Set powered up bit in OCR */
assert(!(sd->ocr & OCR_POWER_UP));
sd->ocr |= OCR_POWER_UP;
}
static void sd_set_scr(SDState *sd)
@ -390,8 +409,9 @@ static inline uint64_t sd_addr_to_wpnum(uint64_t addr)
return addr >> (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT);
}
static void sd_reset(SDState *sd)
static void sd_reset(DeviceState *dev)
{
SDState *sd = SD_CARD(dev);
uint64_t size;
uint64_t sect;
@ -424,16 +444,44 @@ static void sd_reset(SDState *sd)
sd->blk_len = 0x200;
sd->pwd_len = 0;
sd->expecting_acmd = false;
sd->multi_blk_cnt = 0;
}
static bool sd_get_inserted(SDState *sd)
{
return blk_is_inserted(sd->blk);
}
static bool sd_get_readonly(SDState *sd)
{
return sd->wp_switch;
}
static void sd_cardchange(void *opaque, bool load)
{
SDState *sd = opaque;
DeviceState *dev = DEVICE(sd);
SDBus *sdbus = SD_BUS(qdev_get_parent_bus(dev));
bool inserted = sd_get_inserted(sd);
bool readonly = sd_get_readonly(sd);
qemu_set_irq(sd->inserted_cb, blk_is_inserted(sd->blk));
if (blk_is_inserted(sd->blk)) {
sd_reset(sd);
qemu_set_irq(sd->readonly_cb, sd->wp_switch);
if (inserted) {
sd_reset(dev);
}
/* The IRQ notification is for legacy non-QOM SD controller devices;
* QOMified controllers use the SDBus APIs.
*/
if (sdbus) {
sdbus_set_inserted(sdbus, inserted);
if (inserted) {
sdbus_set_readonly(sdbus, readonly);
}
} else {
qemu_set_irq(sd->inserted_cb, inserted);
if (inserted) {
qemu_set_irq(sd->readonly_cb, readonly);
}
}
}
@ -441,10 +489,44 @@ static const BlockDevOps sd_block_ops = {
.change_media_cb = sd_cardchange,
};
static bool sd_ocr_vmstate_needed(void *opaque)
{
SDState *sd = opaque;
/* Include the OCR state (and timer) if it is not yet powered up */
return !(sd->ocr & OCR_POWER_UP);
}
static const VMStateDescription sd_ocr_vmstate = {
.name = "sd-card/ocr-state",
.version_id = 1,
.minimum_version_id = 1,
.needed = sd_ocr_vmstate_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT32(ocr, SDState),
VMSTATE_TIMER_PTR(ocr_power_timer, SDState),
VMSTATE_END_OF_LIST()
},
};
static int sd_vmstate_pre_load(void *opaque)
{
SDState *sd = opaque;
/* If the OCR state is not included (prior versions, or not
* needed), then the OCR must be set as powered up. If the OCR state
* is included, this will be replaced by the state restore.
*/
sd_ocr_powerup(sd);
return 0;
}
static const VMStateDescription sd_vmstate = {
.name = "sd-card",
.version_id = 1,
.minimum_version_id = 1,
.pre_load = sd_vmstate_pre_load,
.fields = (VMStateField[]) {
VMSTATE_UINT32(mode, SDState),
VMSTATE_INT32(state, SDState),
@ -456,6 +538,7 @@ static const VMStateDescription sd_vmstate = {
VMSTATE_UINT32(vhs, SDState),
VMSTATE_BITMAP(wp_groups, SDState, 0, wpgrps_size),
VMSTATE_UINT32(blk_len, SDState),
VMSTATE_UINT32(multi_blk_cnt, SDState),
VMSTATE_UINT32(erase_start, SDState),
VMSTATE_UINT32(erase_end, SDState),
VMSTATE_UINT8_ARRAY(pwd, SDState, 16),
@ -470,37 +553,33 @@ static const VMStateDescription sd_vmstate = {
VMSTATE_BUFFER_POINTER_UNSAFE(buf, SDState, 1, 512),
VMSTATE_BOOL(enable, SDState),
VMSTATE_END_OF_LIST()
}
},
.subsections = (const VMStateDescription*[]) {
&sd_ocr_vmstate,
NULL
},
};
/* We do not model the chip select pin, so allow the board to select
whether card should be in SSI or MMC/SD mode. It is also up to the
board to ensure that ssi transfers only occur when the chip select
is asserted. */
/* Legacy initialization function for use by non-qdevified callers */
SDState *sd_init(BlockBackend *blk, bool is_spi)
{
SDState *sd;
DeviceState *dev;
Error *err = NULL;
if (blk && blk_is_read_only(blk)) {
fprintf(stderr, "sd_init: Cannot use read-only drive\n");
dev = qdev_create(NULL, TYPE_SD_CARD);
qdev_prop_set_drive(dev, "drive", blk, &err);
if (err) {
error_report("sd_init failed: %s", error_get_pretty(err));
return NULL;
}
qdev_prop_set_bit(dev, "spi", is_spi);
object_property_set_bool(OBJECT(dev), true, "realized", &err);
if (err) {
error_report("sd_init failed: %s", error_get_pretty(err));
return NULL;
}
sd = (SDState *) g_malloc0(sizeof(SDState));
sd->buf = blk_blockalign(blk, 512);
sd->spi = is_spi;
sd->enable = true;
sd->blk = blk;
sd_reset(sd);
if (sd->blk) {
/* Attach dev if not already attached. (This call ignores an
* error return code if sd->blk is already attached.) */
/* FIXME ignoring blk_attach_dev() failure is dangerously brittle */
blk_attach_dev(sd->blk, sd);
blk_set_dev_ops(sd->blk, &sd_block_ops, sd);
}
vmstate_register(NULL, -1, &sd_vmstate, sd);
return sd;
return SD_CARD(dev);
}
void sd_set_cb(SDState *sd, qemu_irq readonly, qemu_irq insert)
@ -674,6 +753,12 @@ static sd_rsp_type_t sd_normal_command(SDState *sd,
rca = req.arg >> 16;
}
/* CMD23 (set block count) must be immediately followed by CMD18 or CMD25
* if not, its effects are cancelled */
if (sd->multi_blk_cnt != 0 && !(req.cmd == 18 || req.cmd == 25)) {
sd->multi_blk_cnt = 0;
}
DPRINTF("CMD%d 0x%08x state %d\n", req.cmd, req.arg, sd->state);
switch (req.cmd) {
/* Basic commands (Class 0 and Class 1) */
@ -684,7 +769,7 @@ static sd_rsp_type_t sd_normal_command(SDState *sd,
default:
sd->state = sd_idle_state;
sd_reset(sd);
sd_reset(DEVICE(sd));
return sd->spi ? sd_r1 : sd_r0;
}
break;
@ -969,6 +1054,17 @@ static sd_rsp_type_t sd_normal_command(SDState *sd,
}
break;
case 23: /* CMD23: SET_BLOCK_COUNT */
switch (sd->state) {
case sd_transfer_state:
sd->multi_blk_cnt = req.arg;
return sd_r1;
default:
break;
}
break;
/* Block write commands (Class 4) */
case 24: /* CMD24: WRITE_SINGLE_BLOCK */
if (sd->spi)
@ -1201,16 +1297,17 @@ static sd_rsp_type_t sd_normal_command(SDState *sd,
default:
bad_cmd:
fprintf(stderr, "SD: Unknown CMD%i\n", req.cmd);
qemu_log_mask(LOG_GUEST_ERROR, "SD: Unknown CMD%i\n", req.cmd);
return sd_illegal;
unimplemented_cmd:
/* Commands that are recognised but not yet implemented in SPI mode. */
fprintf(stderr, "SD: CMD%i not implemented in SPI mode\n", req.cmd);
qemu_log_mask(LOG_UNIMP, "SD: CMD%i not implemented in SPI mode\n",
req.cmd);
return sd_illegal;
}
fprintf(stderr, "SD: CMD%i in a wrong state\n", req.cmd);
qemu_log_mask(LOG_GUEST_ERROR, "SD: CMD%i in a wrong state\n", req.cmd);
return sd_illegal;
}
@ -1278,9 +1375,28 @@ static sd_rsp_type_t sd_app_command(SDState *sd,
}
switch (sd->state) {
case sd_idle_state:
/* If it's the first ACMD41 since reset, we need to decide
* whether to power up. If this is not an enquiry ACMD41,
* we immediately report power on and proceed below to the
* ready state, but if it is, we set a timer to model a
* delay for power up. This works around a bug in EDK2
* UEFI, which sends an initial enquiry ACMD41, but
* assumes that the card is in ready state as soon as it
* sees the power up bit set. */
if (!(sd->ocr & OCR_POWER_UP)) {
if ((req.arg & ACMD41_ENQUIRY_MASK) != 0) {
timer_del(sd->ocr_power_timer);
sd_ocr_powerup(sd);
} else if (!timer_pending(sd->ocr_power_timer)) {
timer_mod_ns(sd->ocr_power_timer,
(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)
+ OCR_POWER_DELAY_NS));
}
}
/* We accept any voltage. 10000 V is nothing.
*
* We don't model init delay so just advance straight to ready state
* Once we're powered up, we advance straight to ready state
* unless it's an enquiry ACMD41 (bits 23:0 == 0).
*/
if (req.arg & ACMD41_ENQUIRY_MASK) {
@ -1323,7 +1439,7 @@ static sd_rsp_type_t sd_app_command(SDState *sd,
return sd_normal_command(sd, req);
}
fprintf(stderr, "SD: ACMD%i in a wrong state\n", req.cmd);
qemu_log_mask(LOG_GUEST_ERROR, "SD: ACMD%i in a wrong state\n", req.cmd);
return sd_illegal;
}
@ -1367,7 +1483,7 @@ int sd_do_command(SDState *sd, SDRequest *req,
if (!cmd_valid_while_locked(sd, req)) {
sd->card_status |= ILLEGAL_COMMAND;
sd->expecting_acmd = false;
fprintf(stderr, "SD: Card is locked\n");
qemu_log_mask(LOG_GUEST_ERROR, "SD: Card is locked\n");
rtype = sd_illegal;
goto send_response;
}
@ -1525,7 +1641,8 @@ void sd_write_data(SDState *sd, uint8_t value)
return;
if (sd->state != sd_receivingdata_state) {
fprintf(stderr, "sd_write_data: not in Receiving-Data state\n");
qemu_log_mask(LOG_GUEST_ERROR,
"sd_write_data: not in Receiving-Data state\n");
return;
}
@ -1569,6 +1686,14 @@ void sd_write_data(SDState *sd, uint8_t value)
sd->csd[14] |= 0x40;
/* Bzzzzzzztt .... Operation complete. */
if (sd->multi_blk_cnt != 0) {
if (--sd->multi_blk_cnt == 0) {
/* Stop! */
sd->state = sd_transfer_state;
break;
}
}
sd->state = sd_receivingdata_state;
}
break;
@ -1636,7 +1761,7 @@ void sd_write_data(SDState *sd, uint8_t value)
break;
default:
fprintf(stderr, "sd_write_data: unknown command\n");
qemu_log_mask(LOG_GUEST_ERROR, "sd_write_data: unknown command\n");
break;
}
}
@ -1651,7 +1776,8 @@ uint8_t sd_read_data(SDState *sd)
return 0x00;
if (sd->state != sd_sendingdata_state) {
fprintf(stderr, "sd_read_data: not in Sending-Data state\n");
qemu_log_mask(LOG_GUEST_ERROR,
"sd_read_data: not in Sending-Data state\n");
return 0x00;
}
@ -1715,6 +1841,15 @@ uint8_t sd_read_data(SDState *sd)
if (sd->data_offset >= io_len) {
sd->data_start += io_len;
sd->data_offset = 0;
if (sd->multi_blk_cnt != 0) {
if (--sd->multi_blk_cnt == 0) {
/* Stop! */
sd->state = sd_transfer_state;
break;
}
}
if (sd->data_start + io_len > sd->size) {
sd->card_status |= ADDRESS_ERROR;
break;
@ -1753,7 +1888,7 @@ uint8_t sd_read_data(SDState *sd)
break;
default:
fprintf(stderr, "sd_read_data: unknown command\n");
qemu_log_mask(LOG_GUEST_ERROR, "sd_read_data: unknown command\n");
return 0x00;
}
@ -1769,3 +1904,73 @@ void sd_enable(SDState *sd, bool enable)
{
sd->enable = enable;
}
static void sd_instance_init(Object *obj)
{
SDState *sd = SD_CARD(obj);
sd->enable = true;
sd->ocr_power_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, sd_ocr_powerup, sd);
}
static void sd_realize(DeviceState *dev, Error **errp)
{
SDState *sd = SD_CARD(dev);
if (sd->blk && blk_is_read_only(sd->blk)) {
error_setg(errp, "Cannot use read-only drive as SD card");
return;
}
sd->buf = blk_blockalign(sd->blk, 512);
if (sd->blk) {
blk_set_dev_ops(sd->blk, &sd_block_ops, sd);
}
}
static Property sd_properties[] = {
DEFINE_PROP_DRIVE("drive", SDState, blk),
/* We do not model the chip select pin, so allow the board to select
* whether card should be in SSI or MMC/SD mode. It is also up to the
* board to ensure that ssi transfers only occur when the chip select
* is asserted. */
DEFINE_PROP_BOOL("spi", SDState, spi, false),
DEFINE_PROP_END_OF_LIST()
};
static void sd_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SDCardClass *sc = SD_CARD_CLASS(klass);
dc->realize = sd_realize;
dc->props = sd_properties;
dc->vmsd = &sd_vmstate;
dc->reset = sd_reset;
dc->bus_type = TYPE_SD_BUS;
sc->do_command = sd_do_command;
sc->write_data = sd_write_data;
sc->read_data = sd_read_data;
sc->data_ready = sd_data_ready;
sc->enable = sd_enable;
sc->get_inserted = sd_get_inserted;
sc->get_readonly = sd_get_readonly;
}
static const TypeInfo sd_info = {
.name = TYPE_SD_CARD,
.parent = TYPE_DEVICE,
.instance_size = sizeof(SDState),
.class_size = sizeof(SDCardClass),
.class_init = sd_class_init,
.instance_init = sd_instance_init,
};
static void sd_register_types(void)
{
type_register_static(&sd_info);
}
type_init(sd_register_types)

82
hw/sd/sdhci.c
View File

@ -55,6 +55,9 @@
} \
} while (0)
#define TYPE_SDHCI_BUS "sdhci-bus"
#define SDHCI_BUS(obj) OBJECT_CHECK(SDBus, (obj), TYPE_SDHCI_BUS)
/* Default SD/MMC host controller features information, which will be
* presented in CAPABILITIES register of generic SD host controller at reset.
* If not stated otherwise:
@ -145,9 +148,9 @@ static void sdhci_raise_insertion_irq(void *opaque)
}
}
static void sdhci_insert_eject_cb(void *opaque, int irq, int level)
static void sdhci_set_inserted(DeviceState *dev, bool level)
{
SDHCIState *s = (SDHCIState *)opaque;
SDHCIState *s = (SDHCIState *)dev;
DPRINT_L1("Card state changed: %s!\n", level ? "insert" : "eject");
if ((s->norintsts & SDHC_NIS_REMOVE) && level) {
@ -172,9 +175,9 @@ static void sdhci_insert_eject_cb(void *opaque, int irq, int level)
}
}
static void sdhci_card_readonly_cb(void *opaque, int irq, int level)
static void sdhci_set_readonly(DeviceState *dev, bool level)
{
SDHCIState *s = (SDHCIState *)opaque;
SDHCIState *s = (SDHCIState *)dev;
if (level) {
s->prnsts &= ~SDHC_WRITE_PROTECT;
@ -186,6 +189,8 @@ static void sdhci_card_readonly_cb(void *opaque, int irq, int level)
static void sdhci_reset(SDHCIState *s)
{
DeviceState *dev = DEVICE(s);
timer_del(s->insert_timer);
timer_del(s->transfer_timer);
/* Set all registers to 0. Capabilities registers are not cleared
@ -194,8 +199,11 @@ static void sdhci_reset(SDHCIState *s)
memset(&s->sdmasysad, 0, (uintptr_t)&s->capareg - (uintptr_t)&s->sdmasysad);
if (!s->noeject_quirk) {
sd_set_cb(s->card, s->ro_cb, s->eject_cb);
/* Reset other state based on current card insertion/readonly status */
sdhci_set_inserted(dev, sdbus_get_inserted(&s->sdbus));
sdhci_set_readonly(dev, sdbus_get_readonly(&s->sdbus));
}
s->data_count = 0;
s->stopped_state = sdhc_not_stopped;
}
@ -213,7 +221,7 @@ static void sdhci_send_command(SDHCIState *s)
request.cmd = s->cmdreg >> 8;
request.arg = s->argument;
DPRINT_L1("sending CMD%u ARG[0x%08x]\n", request.cmd, request.arg);
rlen = sd_do_command(s->card, &request, response);
rlen = sdbus_do_command(&s->sdbus, &request, response);
if (s->cmdreg & SDHC_CMD_RESPONSE) {
if (rlen == 4) {
@ -269,7 +277,7 @@ static void sdhci_end_transfer(SDHCIState *s)
request.cmd = 0x0C;
request.arg = 0;
DPRINT_L1("Automatically issue CMD%d %08x\n", request.cmd, request.arg);
sd_do_command(s->card, &request, response);
sdbus_do_command(&s->sdbus, &request, response);
/* Auto CMD12 response goes to the upper Response register */
s->rspreg[3] = (response[0] << 24) | (response[1] << 16) |
(response[2] << 8) | response[3];
@ -301,7 +309,7 @@ static void sdhci_read_block_from_card(SDHCIState *s)
}
for (index = 0; index < (s->blksize & 0x0fff); index++) {
s->fifo_buffer[index] = sd_read_data(s->card);
s->fifo_buffer[index] = sdbus_read_data(&s->sdbus);
}
/* New data now available for READ through Buffer Port Register */
@ -394,7 +402,7 @@ static void sdhci_write_block_to_card(SDHCIState *s)
}
for (index = 0; index < (s->blksize & 0x0fff); index++) {
sd_write_data(s->card, s->fifo_buffer[index]);
sdbus_write_data(&s->sdbus, s->fifo_buffer[index]);
}
/* Next data can be written through BUFFER DATORT register */
@ -476,7 +484,7 @@ static void sdhci_sdma_transfer_multi_blocks(SDHCIState *s)
while (s->blkcnt) {
if (s->data_count == 0) {
for (n = 0; n < block_size; n++) {
s->fifo_buffer[n] = sd_read_data(s->card);
s->fifo_buffer[n] = sdbus_read_data(&s->sdbus);
}
}
begin = s->data_count;
@ -517,7 +525,7 @@ static void sdhci_sdma_transfer_multi_blocks(SDHCIState *s)
s->sdmasysad += s->data_count - begin;
if (s->data_count == block_size) {
for (n = 0; n < block_size; n++) {
sd_write_data(s->card, s->fifo_buffer[n]);
sdbus_write_data(&s->sdbus, s->fifo_buffer[n]);
}
s->data_count = 0;
if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {
@ -549,7 +557,7 @@ static void sdhci_sdma_transfer_single_block(SDHCIState *s)
if (s->trnmod & SDHC_TRNS_READ) {
for (n = 0; n < datacnt; n++) {
s->fifo_buffer[n] = sd_read_data(s->card);
s->fifo_buffer[n] = sdbus_read_data(&s->sdbus);
}
dma_memory_write(&address_space_memory, s->sdmasysad, s->fifo_buffer,
datacnt);
@ -557,7 +565,7 @@ static void sdhci_sdma_transfer_single_block(SDHCIState *s)
dma_memory_read(&address_space_memory, s->sdmasysad, s->fifo_buffer,
datacnt);
for (n = 0; n < datacnt; n++) {
sd_write_data(s->card, s->fifo_buffer[n]);
sdbus_write_data(&s->sdbus, s->fifo_buffer[n]);
}
}
@ -661,7 +669,7 @@ static void sdhci_do_adma(SDHCIState *s)
while (length) {
if (s->data_count == 0) {
for (n = 0; n < block_size; n++) {
s->fifo_buffer[n] = sd_read_data(s->card);
s->fifo_buffer[n] = sdbus_read_data(&s->sdbus);
}
}
begin = s->data_count;
@ -702,7 +710,7 @@ static void sdhci_do_adma(SDHCIState *s)
dscr.addr += s->data_count - begin;
if (s->data_count == block_size) {
for (n = 0; n < block_size; n++) {
sd_write_data(s->card, s->fifo_buffer[n]);
sdbus_write_data(&s->sdbus, s->fifo_buffer[n]);
}
s->data_count = 0;
if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {
@ -816,7 +824,7 @@ static void sdhci_data_transfer(void *opaque)
break;
}
} else {
if ((s->trnmod & SDHC_TRNS_READ) && sd_data_ready(s->card)) {
if ((s->trnmod & SDHC_TRNS_READ) && sdbus_data_ready(&s->sdbus)) {
s->prnsts |= SDHC_DOING_READ | SDHC_DATA_INHIBIT |
SDHC_DAT_LINE_ACTIVE;
sdhci_read_block_from_card(s);
@ -1153,15 +1161,10 @@ static inline unsigned int sdhci_get_fifolen(SDHCIState *s)
}
}
static void sdhci_initfn(SDHCIState *s, BlockBackend *blk)
static void sdhci_initfn(SDHCIState *s)
{
s->card = sd_init(blk, false);
if (s->card == NULL) {
exit(1);
}
s->eject_cb = qemu_allocate_irq(sdhci_insert_eject_cb, s, 0);
s->ro_cb = qemu_allocate_irq(sdhci_card_readonly_cb, s, 0);
sd_set_cb(s->card, s->ro_cb, s->eject_cb);
qbus_create_inplace(&s->sdbus, sizeof(s->sdbus),
TYPE_SDHCI_BUS, DEVICE(s), "sd-bus");
s->insert_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, sdhci_raise_insertion_irq, s);
s->transfer_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, sdhci_data_transfer, s);
@ -1220,12 +1223,6 @@ const VMStateDescription sdhci_vmstate = {
/* Capabilities registers provide information on supported features of this
* specific host controller implementation */
static Property sdhci_pci_properties[] = {
/*
* We currently fuse controller and card into a single device
* model, but we intend to separate them. For that purpose, the
* properties that belong to the card are marked as experimental.
*/
DEFINE_PROP_DRIVE("x-drive", SDHCIState, blk),
DEFINE_PROP_UINT32("capareg", SDHCIState, capareg,
SDHC_CAPAB_REG_DEFAULT),
DEFINE_PROP_UINT32("maxcurr", SDHCIState, maxcurr, 0),
@ -1237,7 +1234,7 @@ static void sdhci_pci_realize(PCIDevice *dev, Error **errp)
SDHCIState *s = PCI_SDHCI(dev);
dev->config[PCI_CLASS_PROG] = 0x01; /* Standard Host supported DMA */
dev->config[PCI_INTERRUPT_PIN] = 0x01; /* interrupt pin A */
sdhci_initfn(s, s->blk);
sdhci_initfn(s);
s->buf_maxsz = sdhci_get_fifolen(s);
s->fifo_buffer = g_malloc0(s->buf_maxsz);
s->irq = pci_allocate_irq(dev);
@ -1285,11 +1282,8 @@ static Property sdhci_sysbus_properties[] = {
static void sdhci_sysbus_init(Object *obj)
{
SDHCIState *s = SYSBUS_SDHCI(obj);
DriveInfo *di;
/* FIXME use a qdev drive property instead of drive_get_next() */
di = drive_get_next(IF_SD);
sdhci_initfn(s, di ? blk_by_legacy_dinfo(di) : NULL);
sdhci_initfn(s);
}
static void sdhci_sysbus_finalize(Object *obj)
@ -1318,8 +1312,6 @@ static void sdhci_sysbus_class_init(ObjectClass *klass, void *data)
dc->vmsd = &sdhci_vmstate;
dc->props = sdhci_sysbus_properties;
dc->realize = sdhci_sysbus_realize;
/* Reason: instance_init() method uses drive_get_next() */
dc->cannot_instantiate_with_device_add_yet = true;
}
static const TypeInfo sdhci_sysbus_info = {
@ -1331,10 +1323,26 @@ static const TypeInfo sdhci_sysbus_info = {
.class_init = sdhci_sysbus_class_init,
};
static void sdhci_bus_class_init(ObjectClass *klass, void *data)
{
SDBusClass *sbc = SD_BUS_CLASS(klass);
sbc->set_inserted = sdhci_set_inserted;
sbc->set_readonly = sdhci_set_readonly;
}
static const TypeInfo sdhci_bus_info = {
.name = TYPE_SDHCI_BUS,
.parent = TYPE_SD_BUS,
.instance_size = sizeof(SDBus),
.class_init = sdhci_bus_class_init,
};
static void sdhci_register_types(void)
{
type_register_static(&sdhci_pci_info);
type_register_static(&sdhci_sysbus_info);
type_register_static(&sdhci_bus_info);
}
type_init(sdhci_register_types)

42
hw/timer/arm_timer.c
View File

@ -277,21 +277,25 @@ static const VMStateDescription vmstate_sp804 = {
}
};
static int sp804_init(SysBusDevice *sbd)
static void sp804_init(Object *obj)
{
DeviceState *dev = DEVICE(sbd);
SP804State *s = SP804(dev);
SP804State *s = SP804(obj);
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
sysbus_init_irq(sbd, &s->irq);
memory_region_init_io(&s->iomem, obj, &sp804_ops, s,
"sp804", 0x1000);
sysbus_init_mmio(sbd, &s->iomem);
}
static void sp804_realize(DeviceState *dev, Error **errp)
{
SP804State *s = SP804(dev);
s->timer[0] = arm_timer_init(s->freq0);
s->timer[1] = arm_timer_init(s->freq1);
s->timer[0]->irq = qemu_allocate_irq(sp804_set_irq, s, 0);
s->timer[1]->irq = qemu_allocate_irq(sp804_set_irq, s, 1);
memory_region_init_io(&s->iomem, OBJECT(s), &sp804_ops, s,
"sp804", 0x1000);
sysbus_init_mmio(sbd, &s->iomem);
vmstate_register(dev, -1, &vmstate_sp804, s);
return 0;
}
/* Integrator/CP timer module. */
@ -344,9 +348,10 @@ static const MemoryRegionOps icp_pit_ops = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
static int icp_pit_init(SysBusDevice *dev)
static void icp_pit_init(Object *obj)
{
icp_pit_state *s = INTEGRATOR_PIT(dev);
icp_pit_state *s = INTEGRATOR_PIT(obj);
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
/* Timer 0 runs at the system clock speed (40MHz). */
s->timer[0] = arm_timer_init(40000000);
@ -358,26 +363,18 @@ static int icp_pit_init(SysBusDevice *dev)
sysbus_init_irq(dev, &s->timer[1]->irq);
sysbus_init_irq(dev, &s->timer[2]->irq);
memory_region_init_io(&s->iomem, OBJECT(s), &icp_pit_ops, s,
memory_region_init_io(&s->iomem, obj, &icp_pit_ops, s,
"icp_pit", 0x1000);
sysbus_init_mmio(dev, &s->iomem);
/* This device has no state to save/restore. The component timers will
save themselves. */
return 0;
}
static void icp_pit_class_init(ObjectClass *klass, void *data)
{
SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
sdc->init = icp_pit_init;
}
static const TypeInfo icp_pit_info = {
.name = TYPE_INTEGRATOR_PIT,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(icp_pit_state),
.class_init = icp_pit_class_init,
.instance_init = icp_pit_init,
};
static Property sp804_properties[] = {
@ -388,17 +385,18 @@ static Property sp804_properties[] = {
static void sp804_class_init(ObjectClass *klass, void *data)
{
SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
DeviceClass *k = DEVICE_CLASS(klass);
sdc->init = sp804_init;
k->realize = sp804_realize;
k->props = sp804_properties;
k->vmsd = &vmstate_sp804;
}
static const TypeInfo sp804_info = {
.name = TYPE_SP804,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(SP804State),
.instance_init = sp804_init,
.class_init = sp804_class_init,
};

12
hw/timer/exynos4210_mct.c
View File

@ -1422,10 +1422,11 @@ static const MemoryRegionOps exynos4210_mct_ops = {
};
/* MCT init */
static int exynos4210_mct_init(SysBusDevice *dev)
static void exynos4210_mct_init(Object *obj)
{
int i;
Exynos4210MCTState *s = EXYNOS4210_MCT(dev);
Exynos4210MCTState *s = EXYNOS4210_MCT(obj);
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
QEMUBH *bh[2];
/* Global timer */
@ -1450,19 +1451,15 @@ static int exynos4210_mct_init(SysBusDevice *dev)
sysbus_init_irq(dev, &s->l_timer[i].irq);
}
memory_region_init_io(&s->iomem, OBJECT(s), &exynos4210_mct_ops, s,
memory_region_init_io(&s->iomem, obj, &exynos4210_mct_ops, s,
"exynos4210-mct", MCT_SFR_SIZE);
sysbus_init_mmio(dev, &s->iomem);
return 0;
}
static void exynos4210_mct_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = exynos4210_mct_init;
dc->reset = exynos4210_mct_reset;
dc->vmsd = &vmstate_exynos4210_mct_state;
}
@ -1471,6 +1468,7 @@ static const TypeInfo exynos4210_mct_info = {
.name = TYPE_EXYNOS4210_MCT,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(Exynos4210MCTState),
.instance_init = exynos4210_mct_init,
.class_init = exynos4210_mct_class_init,
};

12
hw/timer/exynos4210_pwm.c
View File

@ -380,9 +380,10 @@ static const MemoryRegionOps exynos4210_pwm_ops = {
/*
* PWM timer initialization
*/
static int exynos4210_pwm_init(SysBusDevice *dev)
static void exynos4210_pwm_init(Object *obj)
{
Exynos4210PWMState *s = EXYNOS4210_PWM(dev);
Exynos4210PWMState *s = EXYNOS4210_PWM(obj);
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
int i;
QEMUBH *bh;
@ -394,19 +395,15 @@ static int exynos4210_pwm_init(SysBusDevice *dev)
s->timer[i].parent = s;
}
memory_region_init_io(&s->iomem, OBJECT(s), &exynos4210_pwm_ops, s,
memory_region_init_io(&s->iomem, obj, &exynos4210_pwm_ops, s,
"exynos4210-pwm", EXYNOS4210_PWM_REG_MEM_SIZE);
sysbus_init_mmio(dev, &s->iomem);
return 0;
}
static void exynos4210_pwm_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = exynos4210_pwm_init;
dc->reset = exynos4210_pwm_reset;
dc->vmsd = &vmstate_exynos4210_pwm_state;
}
@ -415,6 +412,7 @@ static const TypeInfo exynos4210_pwm_info = {
.name = TYPE_EXYNOS4210_PWM,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(Exynos4210PWMState),
.instance_init = exynos4210_pwm_init,
.class_init = exynos4210_pwm_class_init,
};

12
hw/timer/exynos4210_rtc.c
View File

@ -547,9 +547,10 @@ static const MemoryRegionOps exynos4210_rtc_ops = {
/*
* RTC timer initialization
*/
static int exynos4210_rtc_init(SysBusDevice *dev)
static void exynos4210_rtc_init(Object *obj)
{
Exynos4210RTCState *s = EXYNOS4210_RTC(dev);
Exynos4210RTCState *s = EXYNOS4210_RTC(obj);
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
QEMUBH *bh;
bh = qemu_bh_new(exynos4210_rtc_tick, s);
@ -564,19 +565,15 @@ static int exynos4210_rtc_init(SysBusDevice *dev)
sysbus_init_irq(dev, &s->alm_irq);
sysbus_init_irq(dev, &s->tick_irq);
memory_region_init_io(&s->iomem, OBJECT(s), &exynos4210_rtc_ops, s,
memory_region_init_io(&s->iomem, obj, &exynos4210_rtc_ops, s,
"exynos4210-rtc", EXYNOS4210_RTC_REG_MEM_SIZE);
sysbus_init_mmio(dev, &s->iomem);
return 0;
}
static void exynos4210_rtc_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = exynos4210_rtc_init;
dc->reset = exynos4210_rtc_reset;
dc->vmsd = &vmstate_exynos4210_rtc_state;
}
@ -585,6 +582,7 @@ static const TypeInfo exynos4210_rtc_info = {
.name = TYPE_EXYNOS4210_RTC,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(Exynos4210RTCState),
.instance_init = exynos4210_rtc_init,
.class_init = exynos4210_rtc_class_init,
};

11
hw/timer/pl031.c
View File

@ -192,12 +192,13 @@ static const MemoryRegionOps pl031_ops = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
static int pl031_init(SysBusDevice *dev)
static void pl031_init(Object *obj)
{
PL031State *s = PL031(dev);
PL031State *s = PL031(obj);
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
struct tm tm;
memory_region_init_io(&s->iomem, OBJECT(s), &pl031_ops, s, "pl031", 0x1000);
memory_region_init_io(&s->iomem, obj, &pl031_ops, s, "pl031", 0x1000);
sysbus_init_mmio(dev, &s->iomem);
sysbus_init_irq(dev, &s->irq);
@ -206,7 +207,6 @@ static int pl031_init(SysBusDevice *dev)
qemu_clock_get_ns(rtc_clock) / get_ticks_per_sec();
s->timer = timer_new_ns(rtc_clock, pl031_interrupt, s);
return 0;
}
static void pl031_pre_save(void *opaque)
@ -249,9 +249,7 @@ static const VMStateDescription vmstate_pl031 = {
static void pl031_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = pl031_init;
dc->vmsd = &vmstate_pl031;
}
@ -259,6 +257,7 @@ static const TypeInfo pl031_info = {
.name = TYPE_PL031,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(PL031State),
.instance_init = pl031_init,
.class_init = pl031_class_init,
};

32
hw/timer/pxa2xx_timer.c
View File

@ -433,10 +433,10 @@ static int pxa25x_timer_post_load(void *opaque, int version_id)
return 0;
}
static int pxa2xx_timer_init(SysBusDevice *dev)
static void pxa2xx_timer_init(Object *obj)
{
PXA2xxTimerInfo *s = PXA2XX_TIMER(dev);
int i;
PXA2xxTimerInfo *s = PXA2XX_TIMER(obj);
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
s->irq_enabled = 0;
s->oldclock = 0;
@ -444,16 +444,28 @@ static int pxa2xx_timer_init(SysBusDevice *dev)
s->lastload = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
s->reset3 = 0;
memory_region_init_io(&s->iomem, obj, &pxa2xx_timer_ops, s,
"pxa2xx-timer", 0x00001000);
sysbus_init_mmio(dev, &s->iomem);
}
static void pxa2xx_timer_realize(DeviceState *dev, Error **errp)
{
PXA2xxTimerInfo *s = PXA2XX_TIMER(dev);
SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
int i;
for (i = 0; i < 4; i ++) {
s->timer[i].value = 0;
sysbus_init_irq(dev, &s->timer[i].irq);
sysbus_init_irq(sbd, &s->timer[i].irq);
s->timer[i].info = s;
s->timer[i].num = i;
s->timer[i].qtimer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
pxa2xx_timer_tick, &s->timer[i]);
}
if (s->flags & (1 << PXA2XX_TIMER_HAVE_TM4)) {
sysbus_init_irq(dev, &s->irq4);
sysbus_init_irq(sbd, &s->irq4);
for (i = 0; i < 8; i ++) {
s->tm4[i].tm.value = 0;
@ -465,12 +477,6 @@ static int pxa2xx_timer_init(SysBusDevice *dev)
pxa2xx_timer_tick4, &s->tm4[i]);
}
}
memory_region_init_io(&s->iomem, OBJECT(s), &pxa2xx_timer_ops, s,
"pxa2xx-timer", 0x00001000);
sysbus_init_mmio(dev, &s->iomem);
return 0;
}
static const VMStateDescription vmstate_pxa2xx_timer0_regs = {
@ -573,9 +579,8 @@ static const TypeInfo pxa27x_timer_dev_info = {
static void pxa2xx_timer_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(oc);
sdc->init = pxa2xx_timer_init;
dc->realize = pxa2xx_timer_realize;
dc->vmsd = &vmstate_pxa2xx_timer_regs;
}
@ -583,6 +588,7 @@ static const TypeInfo pxa2xx_timer_type_info = {
.name = TYPE_PXA2XX_TIMER,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(PXA2xxTimerInfo),
.instance_init = pxa2xx_timer_init,
.abstract = true,
.class_init = pxa2xx_timer_class_init,
};

65
include/hw/sd/sd.h
View File

@ -67,7 +67,51 @@ typedef struct {
} SDRequest;
typedef struct SDState SDState;
typedef struct SDBus SDBus;
#define TYPE_SD_CARD "sd-card"
#define SD_CARD(obj) OBJECT_CHECK(SDState, (obj), TYPE_SD_CARD)
#define SD_CARD_CLASS(klass) \
OBJECT_CLASS_CHECK(SDCardClass, (klass), TYPE_SD_CARD)
#define SD_CARD_GET_CLASS(obj) \
OBJECT_GET_CLASS(SDCardClass, (obj), TYPE_SD_CARD)
typedef struct {
/*< private >*/
DeviceClass parent_class;
/*< public >*/
int (*do_command)(SDState *sd, SDRequest *req, uint8_t *response);
void (*write_data)(SDState *sd, uint8_t value);
uint8_t (*read_data)(SDState *sd);
bool (*data_ready)(SDState *sd);
void (*enable)(SDState *sd, bool enable);
bool (*get_inserted)(SDState *sd);
bool (*get_readonly)(SDState *sd);
} SDCardClass;
#define TYPE_SD_BUS "sd-bus"
#define SD_BUS(obj) OBJECT_CHECK(SDBus, (obj), TYPE_SD_BUS)
#define SD_BUS_CLASS(klass) OBJECT_CLASS_CHECK(SDBusClass, (klass), TYPE_SD_BUS)
#define SD_BUS_GET_CLASS(obj) OBJECT_GET_CLASS(SDBusClass, (obj), TYPE_SD_BUS)
struct SDBus {
BusState qbus;
};
typedef struct {
/*< private >*/
BusClass parent_class;
/*< public >*/
/* These methods are called by the SD device to notify the controller
* when the card insertion or readonly status changes
*/
void (*set_inserted)(DeviceState *dev, bool inserted);
void (*set_readonly)(DeviceState *dev, bool readonly);
} SDBusClass;
/* Legacy functions to be used only by non-qdevified callers */
SDState *sd_init(BlockBackend *bs, bool is_spi);
int sd_do_command(SDState *sd, SDRequest *req,
uint8_t *response);
@ -75,6 +119,27 @@ void sd_write_data(SDState *sd, uint8_t value);
uint8_t sd_read_data(SDState *sd);
void sd_set_cb(SDState *sd, qemu_irq readonly, qemu_irq insert);
bool sd_data_ready(SDState *sd);
/* sd_enable should not be used -- it is only used on the nseries boards,
* where it is part of a broken implementation of the MMC card slot switch
* (there should be two card slots which are multiplexed to a single MMC
* controller, but instead we model it with one card and controller and
* disable the card when the second slot is selected, so it looks like the
* second slot is always empty).
*/
void sd_enable(SDState *sd, bool enable);
/* Functions to be used by qdevified callers (working via
* an SDBus rather than directly with SDState)
*/
int sdbus_do_command(SDBus *sd, SDRequest *req, uint8_t *response);
void sdbus_write_data(SDBus *sd, uint8_t value);
uint8_t sdbus_read_data(SDBus *sd);
bool sdbus_data_ready(SDBus *sd);
bool sdbus_get_inserted(SDBus *sd);
bool sdbus_get_readonly(SDBus *sd);
/* Functions to be used by SD devices to report back to qdevified controllers */
void sdbus_set_inserted(SDBus *sd, bool inserted);
void sdbus_set_readonly(SDBus *sd, bool inserted);
#endif /* __hw_sd_h */

3
include/hw/sd/sdhci.h
View File

@ -37,9 +37,8 @@ typedef struct SDHCIState {
PCIDevice pcidev;
SysBusDevice busdev;
};
SDState *card;
SDBus sdbus;
MemoryRegion iomem;
BlockBackend *blk;
QEMUTimer *insert_timer; /* timer for 'changing' sd card. */
QEMUTimer *transfer_timer;

2
target-arm/cpu-qom.h
View File

@ -148,6 +148,8 @@ typedef struct ARMCPU {
uint32_t id_pfr0;
uint32_t id_pfr1;
uint32_t id_dfr0;
uint32_t pmceid0;
uint32_t pmceid1;
uint32_t id_afr0;
uint32_t id_mmfr0;
uint32_t id_mmfr1;

2
target-arm/cpu.c
View File

@ -1156,6 +1156,8 @@ static void cortex_a15_initfn(Object *obj)
cpu->id_pfr0 = 0x00001131;
cpu->id_pfr1 = 0x00011011;
cpu->id_dfr0 = 0x02010555;
cpu->pmceid0 = 0x0000000;
cpu->pmceid1 = 0x00000000;
cpu->id_afr0 = 0x00000000;
cpu->id_mmfr0 = 0x10201105;
cpu->id_mmfr1 = 0x20000000;

29
target-arm/cpu.h
View File

@ -595,6 +595,18 @@ void pmccntr_sync(CPUARMState *env);
#define CPTR_TTA (1U << 20)
#define CPTR_TFP (1U << 10)
#define MDCR_EPMAD (1U << 21)
#define MDCR_EDAD (1U << 20)
#define MDCR_SPME (1U << 17)
#define MDCR_SDD (1U << 16)
#define MDCR_TDRA (1U << 11)
#define MDCR_TDOSA (1U << 10)
#define MDCR_TDA (1U << 9)
#define MDCR_TDE (1U << 8)
#define MDCR_HPME (1U << 7)
#define MDCR_TPM (1U << 6)
#define MDCR_TPMCR (1U << 5)
#define CPSR_M (0x1fU)
#define CPSR_T (1U << 5)
#define CPSR_F (1U << 6)
@ -1255,6 +1267,18 @@ static inline bool cptype_valid(int cptype)
#define PL1_RW (PL1_R | PL1_W)
#define PL0_RW (PL0_R | PL0_W)
/* Return the highest implemented Exception Level */
static inline int arm_highest_el(CPUARMState *env)
{
if (arm_feature(env, ARM_FEATURE_EL3)) {
return 3;
}
if (arm_feature(env, ARM_FEATURE_EL2)) {
return 2;
}
return 1;
}
/* Return the current Exception Level (as per ARMv8; note that this differs
* from the ARMv7 Privilege Level).
*/
@ -1310,6 +1334,11 @@ typedef enum CPAccessResult {
/* As CP_ACCESS_UNCATEGORIZED, but for traps directly to EL2 or EL3 */
CP_ACCESS_TRAP_UNCATEGORIZED_EL2 = 5,
CP_ACCESS_TRAP_UNCATEGORIZED_EL3 = 6,
/* Access fails and results in an exception syndrome for an FP access,
* trapped directly to EL2 or EL3
*/
CP_ACCESS_TRAP_FP_EL2 = 7,
CP_ACCESS_TRAP_FP_EL3 = 8,
} CPAccessResult;
/* Access functions for coprocessor registers. These cannot fail and

2
target-arm/cpu64.c
View File

@ -135,6 +135,8 @@ static void aarch64_a57_initfn(Object *obj)
cpu->id_isar5 = 0x00011121;
cpu->id_aa64pfr0 = 0x00002222;
cpu->id_aa64dfr0 = 0x10305106;
cpu->pmceid0 = 0x00000000;
cpu->pmceid1 = 0x00000000;
cpu->id_aa64isar0 = 0x00011120;
cpu->id_aa64mmfr0 = 0x00001124;
cpu->dbgdidr = 0x3516d000;

212
target-arm/helper.c
View File

@ -385,6 +385,60 @@ static CPAccessResult access_trap_aa32s_el1(CPUARMState *env,
return CP_ACCESS_TRAP_UNCATEGORIZED;
}
/* Check for traps to "powerdown debug" registers, which are controlled
* by MDCR.TDOSA
*/
static CPAccessResult access_tdosa(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
int el = arm_current_el(env);
if (el < 2 && (env->cp15.mdcr_el2 & MDCR_TDOSA)
&& !arm_is_secure_below_el3(env)) {
return CP_ACCESS_TRAP_EL2;
}
if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TDOSA)) {
return CP_ACCESS_TRAP_EL3;
}
return CP_ACCESS_OK;
}
/* Check for traps to "debug ROM" registers, which are controlled
* by MDCR_EL2.TDRA for EL2 but by the more general MDCR_EL3.TDA for EL3.
*/
static CPAccessResult access_tdra(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
int el = arm_current_el(env);
if (el < 2 && (env->cp15.mdcr_el2 & MDCR_TDRA)
&& !arm_is_secure_below_el3(env)) {
return CP_ACCESS_TRAP_EL2;
}
if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TDA)) {
return CP_ACCESS_TRAP_EL3;
}
return CP_ACCESS_OK;
}
/* Check for traps to general debug registers, which are controlled
* by MDCR_EL2.TDA for EL2 and MDCR_EL3.TDA for EL3.
*/
static CPAccessResult access_tda(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
int el = arm_current_el(env);
if (el < 2 && (env->cp15.mdcr_el2 & MDCR_TDA)
&& !arm_is_secure_below_el3(env)) {
return CP_ACCESS_TRAP_EL2;
}
if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TDA)) {
return CP_ACCESS_TRAP_EL3;
}
return CP_ACCESS_OK;
}
static void dacr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
{
ARMCPU *cpu = arm_env_get_cpu(env);
@ -1003,6 +1057,13 @@ static const ARMCPRegInfo v7_cp_reginfo[] = {
.accessfn = pmreg_access,
.writefn = pmovsr_write,
.raw_writefn = raw_write },
{ .name = "PMOVSCLR_EL0", .state = ARM_CP_STATE_AA64,
.opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 3,
.access = PL0_RW, .accessfn = pmreg_access,
.type = ARM_CP_ALIAS,
.fieldoffset = offsetof(CPUARMState, cp15.c9_pmovsr),
.writefn = pmovsr_write,
.raw_writefn = raw_write },
/* Unimplemented so WI. */
{ .name = "PMSWINC", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 4,
.access = PL0_W, .accessfn = pmreg_access, .type = ARM_CP_NOP },
@ -1044,6 +1105,12 @@ static const ARMCPRegInfo v7_cp_reginfo[] = {
.fieldoffset = offsetof(CPUARMState, cp15.c9_pmuserenr),
.resetvalue = 0,
.writefn = pmuserenr_write, .raw_writefn = raw_write },
{ .name = "PMUSERENR_EL0", .state = ARM_CP_STATE_AA64,
.opc0 = 3, .opc1 = 3, .crn = 9, .crm = 14, .opc2 = 0,
.access = PL0_R | PL1_RW, .type = ARM_CP_ALIAS,
.fieldoffset = offsetof(CPUARMState, cp15.c9_pmuserenr),
.resetvalue = 0,
.writefn = pmuserenr_write, .raw_writefn = raw_write },
{ .name = "PMINTENSET", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 1,
.access = PL1_RW,
.fieldoffset = offsetof(CPUARMState, cp15.c9_pminten),
@ -1053,6 +1120,11 @@ static const ARMCPRegInfo v7_cp_reginfo[] = {
.access = PL1_RW, .type = ARM_CP_ALIAS,
.fieldoffset = offsetof(CPUARMState, cp15.c9_pminten),
.writefn = pmintenclr_write, },
{ .name = "PMINTENCLR_EL1", .state = ARM_CP_STATE_AA64,
.opc0 = 3, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 2,
.access = PL1_RW, .type = ARM_CP_ALIAS,
.fieldoffset = offsetof(CPUARMState, cp15.c9_pminten),
.writefn = pmintenclr_write },
{ .name = "VBAR", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .crn = 12, .crm = 0, .opc1 = 0, .opc2 = 0,
.access = PL1_RW, .writefn = vbar_write,
@ -1218,10 +1290,33 @@ static const ARMCPRegInfo v6k_cp_reginfo[] = {
static CPAccessResult gt_cntfrq_access(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
/* CNTFRQ: not visible from PL0 if both PL0PCTEN and PL0VCTEN are zero */
if (arm_current_el(env) == 0 && !extract32(env->cp15.c14_cntkctl, 0, 2)) {
/* CNTFRQ: not visible from PL0 if both PL0PCTEN and PL0VCTEN are zero.
* Writable only at the highest implemented exception level.
*/
int el = arm_current_el(env);
switch (el) {
case 0:
if (!extract32(env->cp15.c14_cntkctl, 0, 2)) {
return CP_ACCESS_TRAP;
}
break;
case 1:
if (!isread && ri->state == ARM_CP_STATE_AA32 &&
arm_is_secure_below_el3(env)) {
/* Accesses from 32-bit Secure EL1 UNDEF (*not* trap to EL3!) */
return CP_ACCESS_TRAP_UNCATEGORIZED;
}
break;
case 2:
case 3:
break;
}
if (!isread && el < arm_highest_el(env)) {
return CP_ACCESS_TRAP_UNCATEGORIZED;
}
return CP_ACCESS_OK;
}
@ -2934,10 +3029,10 @@ static CPAccessResult fpexc32_access(CPUARMState *env, const ARMCPRegInfo *ri,
bool isread)
{
if ((env->cp15.cptr_el[2] & CPTR_TFP) && arm_current_el(env) == 2) {
return CP_ACCESS_TRAP_EL2;
return CP_ACCESS_TRAP_FP_EL2;
}
if (env->cp15.cptr_el[3] & CPTR_TFP) {
return CP_ACCESS_TRAP_EL3;
return CP_ACCESS_TRAP_FP_EL3;
}
return CP_ACCESS_OK;
}
@ -3325,7 +3420,8 @@ static const ARMCPRegInfo el3_no_el2_cp_reginfo[] = {
.access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
{ .name = "MDCR_EL2", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 1,
.access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
.access = PL2_RW, .accessfn = access_tda,
.type = ARM_CP_CONST, .resetvalue = 0 },
{ .name = "HPFAR_EL2", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 4,
.access = PL2_RW, .accessfn = access_el3_aa32ns_aa64any,
@ -3732,16 +3828,19 @@ static const ARMCPRegInfo debug_cp_reginfo[] = {
* accessor.
*/
{ .name = "DBGDRAR", .cp = 14, .crn = 1, .crm = 0, .opc1 = 0, .opc2 = 0,
.access = PL0_R, .type = ARM_CP_CONST, .resetvalue = 0 },
.access = PL0_R, .accessfn = access_tdra,
.type = ARM_CP_CONST, .resetvalue = 0 },
{ .name = "MDRAR_EL1", .state = ARM_CP_STATE_AA64,
.opc0 = 2, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 0,
.access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 },
.access = PL1_R, .accessfn = access_tdra,
.type = ARM_CP_CONST, .resetvalue = 0 },
{ .name = "DBGDSAR", .cp = 14, .crn = 2, .crm = 0, .opc1 = 0, .opc2 = 0,
.access = PL0_R, .type = ARM_CP_CONST, .resetvalue = 0 },
.access = PL0_R, .accessfn = access_tdra,
.type = ARM_CP_CONST, .resetvalue = 0 },
/* Monitor debug system control register; the 32-bit alias is DBGDSCRext. */
{ .name = "MDSCR_EL1", .state = ARM_CP_STATE_BOTH,
.cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 2,
.access = PL1_RW,
.access = PL1_RW, .accessfn = access_tda,
.fieldoffset = offsetof(CPUARMState, cp15.mdscr_el1),
.resetvalue = 0 },
/* MDCCSR_EL0, aka DBGDSCRint. This is a read-only mirror of MDSCR_EL1.
@ -3750,26 +3849,30 @@ static const ARMCPRegInfo debug_cp_reginfo[] = {
{ .name = "MDCCSR_EL0", .state = ARM_CP_STATE_BOTH,
.cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 0,
.type = ARM_CP_ALIAS,
.access = PL1_R,
.access = PL1_R, .accessfn = access_tda,
.fieldoffset = offsetof(CPUARMState, cp15.mdscr_el1), },
{ .name = "OSLAR_EL1", .state = ARM_CP_STATE_BOTH,
.cp = 14, .opc0 = 2, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 4,
.access = PL1_W, .type = ARM_CP_NO_RAW,
.accessfn = access_tdosa,
.writefn = oslar_write },
{ .name = "OSLSR_EL1", .state = ARM_CP_STATE_BOTH,
.cp = 14, .opc0 = 2, .opc1 = 0, .crn = 1, .crm = 1, .opc2 = 4,
.access = PL1_R, .resetvalue = 10,
.accessfn = access_tdosa,
.fieldoffset = offsetof(CPUARMState, cp15.oslsr_el1) },
/* Dummy OSDLR_EL1: 32-bit Linux will read this */
{ .name = "OSDLR_EL1", .state = ARM_CP_STATE_BOTH,
.cp = 14, .opc0 = 2, .opc1 = 0, .crn = 1, .crm = 3, .opc2 = 4,
.access = PL1_RW, .type = ARM_CP_NOP },
.access = PL1_RW, .accessfn = access_tdosa,
.type = ARM_CP_NOP },
/* Dummy DBGVCR: Linux wants to clear this on startup, but we don't
* implement vector catch debug events yet.
*/
{ .name = "DBGVCR",
.cp = 14, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 0,
.access = PL1_RW, .type = ARM_CP_NOP },
.access = PL1_RW, .accessfn = access_tda,
.type = ARM_CP_NOP },
REGINFO_SENTINEL
};
@ -4034,7 +4137,8 @@ static void define_debug_regs(ARMCPU *cpu)
int wrps, brps, ctx_cmps;
ARMCPRegInfo dbgdidr = {
.name = "DBGDIDR", .cp = 14, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 0,
.access = PL0_R, .type = ARM_CP_CONST, .resetvalue = cpu->dbgdidr,
.access = PL0_R, .accessfn = access_tda,
.type = ARM_CP_CONST, .resetvalue = cpu->dbgdidr,
};
/* Note that all these register fields hold "number of Xs minus 1". */
@ -4065,13 +4169,13 @@ static void define_debug_regs(ARMCPU *cpu)
ARMCPRegInfo dbgregs[] = {
{ .name = "DBGBVR", .state = ARM_CP_STATE_BOTH,
.cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = i, .opc2 = 4,
.access = PL1_RW,
.access = PL1_RW, .accessfn = access_tda,
.fieldoffset = offsetof(CPUARMState, cp15.dbgbvr[i]),
.writefn = dbgbvr_write, .raw_writefn = raw_write
},
{ .name = "DBGBCR", .state = ARM_CP_STATE_BOTH,
.cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = i, .opc2 = 5,
.access = PL1_RW,
.access = PL1_RW, .accessfn = access_tda,
.fieldoffset = offsetof(CPUARMState, cp15.dbgbcr[i]),
.writefn = dbgbcr_write, .raw_writefn = raw_write
},
@ -4084,13 +4188,13 @@ static void define_debug_regs(ARMCPU *cpu)
ARMCPRegInfo dbgregs[] = {
{ .name = "DBGWVR", .state = ARM_CP_STATE_BOTH,
.cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = i, .opc2 = 6,
.access = PL1_RW,
.access = PL1_RW, .accessfn = access_tda,
.fieldoffset = offsetof(CPUARMState, cp15.dbgwvr[i]),
.writefn = dbgwvr_write, .raw_writefn = raw_write
},
{ .name = "DBGWCR", .state = ARM_CP_STATE_BOTH,
.cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = i, .opc2 = 7,
.access = PL1_RW,
.access = PL1_RW, .accessfn = access_tda,
.fieldoffset = offsetof(CPUARMState, cp15.dbgwcr[i]),
.writefn = dbgwcr_write, .raw_writefn = raw_write
},
@ -4294,6 +4398,22 @@ void register_cp_regs_for_features(ARMCPU *cpu)
.opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 2,
.access = PL1_R, .type = ARM_CP_CONST,
.resetvalue = cpu->mvfr2 },
{ .name = "PMCEID0", .state = ARM_CP_STATE_AA32,
.cp = 15, .opc1 = 0, .crn = 9, .crm = 12, .opc2 = 6,
.access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST,
.resetvalue = cpu->pmceid0 },
{ .name = "PMCEID0_EL0", .state = ARM_CP_STATE_AA64,
.opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 6,
.access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST,
.resetvalue = cpu->pmceid0 },
{ .name = "PMCEID1", .state = ARM_CP_STATE_AA32,
.cp = 15, .opc1 = 0, .crn = 9, .crm = 12, .opc2 = 7,
.access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST,
.resetvalue = cpu->pmceid1 },
{ .name = "PMCEID1_EL0", .state = ARM_CP_STATE_AA64,
.opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 7,
.access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST,
.resetvalue = cpu->pmceid1 },
REGINFO_SENTINEL
};
/* RVBAR_EL1 is only implemented if EL1 is the highest EL */
@ -5279,21 +5399,6 @@ void switch_mode(CPUARMState *env, int mode)
}
}
void HELPER(set_r13_banked)(CPUARMState *env, uint32_t mode, uint32_t val)
{
ARMCPU *cpu = arm_env_get_cpu(env);
cpu_abort(CPU(cpu), "banked r13 write\n");
}
uint32_t HELPER(get_r13_banked)(CPUARMState *env, uint32_t mode)
{
ARMCPU *cpu = arm_env_get_cpu(env);
cpu_abort(CPU(cpu), "banked r13 read\n");
return 0;
}
uint32_t arm_phys_excp_target_el(CPUState *cs, uint32_t excp_idx,
uint32_t cur_el, bool secure)
{
@ -5307,31 +5412,6 @@ void aarch64_sync_64_to_32(CPUARMState *env)
#else
/* Map CPU modes onto saved register banks. */
int bank_number(int mode)
{
switch (mode) {
case ARM_CPU_MODE_USR:
case ARM_CPU_MODE_SYS:
return BANK_USRSYS;
case ARM_CPU_MODE_SVC:
return BANK_SVC;
case ARM_CPU_MODE_ABT:
return BANK_ABT;
case ARM_CPU_MODE_UND:
return BANK_UND;
case ARM_CPU_MODE_IRQ:
return BANK_IRQ;
case ARM_CPU_MODE_FIQ:
return BANK_FIQ;
case ARM_CPU_MODE_HYP:
return BANK_HYP;
case ARM_CPU_MODE_MON:
return BANK_MON;
}
g_assert_not_reached();
}
void switch_mode(CPUARMState *env, int mode)
{
int old_mode;
@ -7676,24 +7756,6 @@ hwaddr arm_cpu_get_phys_page_attrs_debug(CPUState *cs, vaddr addr,
return phys_addr;
}
void HELPER(set_r13_banked)(CPUARMState *env, uint32_t mode, uint32_t val)
{
if ((env->uncached_cpsr & CPSR_M) == mode) {
env->regs[13] = val;
} else {
env->banked_r13[bank_number(mode)] = val;
}
}
uint32_t HELPER(get_r13_banked)(CPUARMState *env, uint32_t mode)
{
if ((env->uncached_cpsr & CPSR_M) == mode) {
return env->regs[13];
} else {
return env->banked_r13[bank_number(mode)];
}
}
uint32_t HELPER(v7m_mrs)(CPUARMState *env, uint32_t reg)
{
ARMCPU *cpu = arm_env_get_cpu(env);

26
target-arm/internals.h
View File

@ -109,7 +109,31 @@ static inline unsigned int aarch64_banked_spsr_index(unsigned int el)
return map[el];
}
int bank_number(int mode);
/* Map CPU modes onto saved register banks. */
static inline int bank_number(int mode)
{
switch (mode) {
case ARM_CPU_MODE_USR:
case ARM_CPU_MODE_SYS:
return BANK_USRSYS;
case ARM_CPU_MODE_SVC:
return BANK_SVC;
case ARM_CPU_MODE_ABT:
return BANK_ABT;
case ARM_CPU_MODE_UND:
return BANK_UND;
case ARM_CPU_MODE_IRQ:
return BANK_IRQ;
case ARM_CPU_MODE_FIQ:
return BANK_FIQ;
case ARM_CPU_MODE_HYP:
return BANK_HYP;
case ARM_CPU_MODE_MON:
return BANK_MON;
}
g_assert_not_reached();
}
void switch_mode(CPUARMState *, int);
void arm_cpu_register_gdb_regs_for_features(ARMCPU *cpu);
void arm_translate_init(void);

51
target-arm/op_helper.c
View File

@ -457,6 +457,32 @@ void HELPER(set_user_reg)(CPUARMState *env, uint32_t regno, uint32_t val)
}
}
void HELPER(set_r13_banked)(CPUARMState *env, uint32_t mode, uint32_t val)
{
if ((env->uncached_cpsr & CPSR_M) == mode) {
env->regs[13] = val;
} else {
env->banked_r13[bank_number(mode)] = val;
}
}
uint32_t HELPER(get_r13_banked)(CPUARMState *env, uint32_t mode)
{
if ((env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_SYS) {
/* SRS instruction is UNPREDICTABLE from System mode; we UNDEF.
* Other UNPREDICTABLE and UNDEF cases were caught at translate time.
*/
raise_exception(env, EXCP_UDEF, syn_uncategorized(),
exception_target_el(env));
}
if ((env->uncached_cpsr & CPSR_M) == mode) {
return env->regs[13];
} else {
return env->banked_r13[bank_number(mode)];
}
}
void HELPER(access_check_cp_reg)(CPUARMState *env, void *rip, uint32_t syndrome,
uint32_t isread)
{
@ -500,6 +526,19 @@ void HELPER(access_check_cp_reg)(CPUARMState *env, void *rip, uint32_t syndrome,
target_el = 3;
syndrome = syn_uncategorized();
break;
case CP_ACCESS_TRAP_FP_EL2:
target_el = 2;
/* Since we are an implementation that takes exceptions on a trapped
* conditional insn only if the insn has passed its condition code
* check, we take the IMPDEF choice to always report CV=1 COND=0xe
* (which is also the required value for AArch64 traps).
*/
syndrome = syn_fp_access_trap(1, 0xe, false);
break;
case CP_ACCESS_TRAP_FP_EL3:
target_el = 3;
syndrome = syn_fp_access_trap(1, 0xe, false);
break;
default:
g_assert_not_reached();
}
@ -614,12 +653,14 @@ void HELPER(pre_smc)(CPUARMState *env, uint32_t syndrome)
int cur_el = arm_current_el(env);
bool secure = arm_is_secure(env);
bool smd = env->cp15.scr_el3 & SCR_SMD;
/* On ARMv8 AArch32, SMD only applies to NS state.
* On ARMv7 SMD only applies to NS state and only if EL2 is available.
* For ARMv7 non EL2, we force SMD to zero so we don't need to re-check
* the EL2 condition here.
/* On ARMv8 with EL3 AArch64, SMD applies to both S and NS state.
* On ARMv8 with EL3 AArch32, or ARMv7 with the Virtualization
* extensions, SMD only applies to NS state.
* On ARMv7 without the Virtualization extensions, the SMD bit
* doesn't exist, but we forbid the guest to set it to 1 in scr_write(),
* so we need not special case this here.
*/
bool undef = is_a64(env) ? smd : (!secure && smd);
bool undef = arm_feature(env, ARM_FEATURE_AARCH64) ? smd : smd && !secure;
if (arm_is_psci_call(cpu, EXCP_SMC)) {
/* If PSCI is enabled and this looks like a valid PSCI call then

67
target-arm/translate.c
View File

@ -7578,8 +7578,67 @@ static void gen_srs(DisasContext *s,
uint32_t mode, uint32_t amode, bool writeback)
{
int32_t offset;
TCGv_i32 addr = tcg_temp_new_i32();
TCGv_i32 tmp = tcg_const_i32(mode);
TCGv_i32 addr, tmp;
bool undef = false;
/* SRS is:
* - trapped to EL3 if EL3 is AArch64 and we are at Secure EL1
* - UNDEFINED in Hyp mode
* - UNPREDICTABLE in User or System mode
* - UNPREDICTABLE if the specified mode is:
* -- not implemented
* -- not a valid mode number
* -- a mode that's at a higher exception level
* -- Monitor, if we are Non-secure
* For the UNPREDICTABLE cases we choose to UNDEF.
*/
if (s->current_el == 1 && !s->ns) {
gen_exception_insn(s, 4, EXCP_UDEF, syn_uncategorized(), 3);
return;
}
if (s->current_el == 0 || s->current_el == 2) {
undef = true;
}
switch (mode) {
case ARM_CPU_MODE_USR:
case ARM_CPU_MODE_FIQ:
case ARM_CPU_MODE_IRQ:
case ARM_CPU_MODE_SVC:
case ARM_CPU_MODE_ABT:
case ARM_CPU_MODE_UND:
case ARM_CPU_MODE_SYS:
break;
case ARM_CPU_MODE_HYP:
if (s->current_el == 1 || !arm_dc_feature(s, ARM_FEATURE_EL2)) {
undef = true;
}
break;
case ARM_CPU_MODE_MON:
/* No need to check specifically for "are we non-secure" because
* we've already made EL0 UNDEF and handled the trap for S-EL1;
* so if this isn't EL3 then we must be non-secure.
*/
if (s->current_el != 3) {
undef = true;
}
break;
default:
undef = true;
}
if (undef) {
gen_exception_insn(s, 4, EXCP_UDEF, syn_uncategorized(),
default_exception_el(s));
return;
}
addr = tcg_temp_new_i32();
tmp = tcg_const_i32(mode);
/* get_r13_banked() will raise an exception if called from System mode */
gen_set_condexec(s);
gen_set_pc_im(s, s->pc - 4);
gen_helper_get_r13_banked(addr, cpu_env, tmp);
tcg_temp_free_i32(tmp);
switch (amode) {
@ -7629,6 +7688,7 @@ static void gen_srs(DisasContext *s,
tcg_temp_free_i32(tmp);
}
tcg_temp_free_i32(addr);
s->is_jmp = DISAS_UPDATE;
}
static void disas_arm_insn(DisasContext *s, unsigned int insn)
@ -7739,9 +7799,6 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn)
}
} else if ((insn & 0x0e5fffe0) == 0x084d0500) {
/* srs */
if (IS_USER(s)) {
goto illegal_op;
}
ARCH(6);
gen_srs(s, (insn & 0x1f), (insn >> 23) & 3, insn & (1 << 21));
return;