[Qemu-devel] [RFC 0/4] AHCI patches + Allwinner SATA

[Qemu-devel] [RFC 0/4] AHCI patches + Allwinner SATA

[Peter Crosthwaite]

Hi John and Beniamino,

This patch series adds bear-minimum Allwinner SATA support.

P1 is a trivial to help debug AHCI.

Regards,
Peter

Peter Crosthwaite (4):
  ahci: Add some MMIO debug printfs
  ahci: split realize and init
  ahci: Add allwinner AHCI
  arm: allwinner-a10: Add SATA

 hw/arm/allwinner-a10.c         |  11 +++
 hw/ide/ahci.c                  | 155 ++++++++++++++++++++++++++++++++++++-----
 hw/ide/ahci.h                  |  19 ++++-
 hw/ide/ich.c                   |  10 ++-
 include/hw/arm/allwinner-a10.h |   5 ++
 5 files changed, 179 insertions(+), 21 deletions(-)

-- 
1.9.1

[Qemu-devel] [RFC 1/4] ahci: Add some MMIO debug printfs

[Peter Crosthwaite]

These are useful for bringup of AHCI.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
---
 hw/ide/ahci.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
index 796be15..4cfce8f 100644
--- a/hw/ide/ahci.c
+++ b/hw/ide/ahci.c
@@ -378,17 +378,23 @@ static uint64_t ahci_mem_read(void *opaque, hwaddr addr, unsigned size)
     int ofst = addr - aligned;
     uint64_t lo = ahci_mem_read_32(opaque, aligned);
     uint64_t hi;
+    uint64_t val;
 
     /* if < 8 byte read does not cross 4 byte boundary */
     if (ofst + size <= 4) {
-        return lo >> (ofst * 8);
+        val = lo >> (ofst * 8);
+    } else {
+        g_assert_cmpint(size, >, 1);
+
+        /* If the 64bit read is unaligned, we will produce undefined
+         * results. AHCI does not support unaligned 64bit reads. */
+        hi = ahci_mem_read_32(opaque, aligned + 4);
+        val = (hi << 32 | lo) >> (ofst * 8);
     }
-    g_assert_cmpint(size, >, 1);
 
-    /* If the 64bit read is unaligned, we will produce undefined
-     * results. AHCI does not support unaligned 64bit reads. */
-    hi = ahci_mem_read_32(opaque, aligned + 4);
-    return (hi << 32 | lo) >> (ofst * 8);
+    DPRINTF(-1, "addr=0x%" HWADDR_PRIx " val=0x%" PRIx64 ", size=%d\n",
+            addr, val, size);
+    return val;
 }
 
 
@@ -397,6 +403,9 @@ static void ahci_mem_write(void *opaque, hwaddr addr,
 {
     AHCIState *s = opaque;
 
+    DPRINTF(-1, "addr=0x%" HWADDR_PRIx " val=0x%" PRIx64 ", size=%d\n",
+            addr, val, size);
+
     /* Only aligned reads are allowed on AHCI */
     if (addr & 3) {
         fprintf(stderr, "ahci: Mis-aligned write to addr 0x"
-- 
1.9.1

[Qemu-devel] [RFC 2/4] ahci: split realize and init

[Peter Crosthwaite]

Do the init level tasks asap and the realize later (mainly when
num_ports is available). This allows sub-class realize routines
to work with the device post-init.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
---
 hw/ide/ahci.c | 36 +++++++++++++++++++++++-------------
 hw/ide/ahci.h |  3 ++-
 hw/ide/ich.c  | 10 +++++++++-
 3 files changed, 34 insertions(+), 15 deletions(-)

diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
index 4cfce8f..eff01b2 100644
--- a/hw/ide/ahci.c
+++ b/hw/ide/ahci.c
@@ -1436,24 +1436,26 @@ static const IDEDMAOps ahci_dma_ops = {
     .cmd_done = ahci_cmd_done,
 };
 
-void ahci_init(AHCIState *s, DeviceState *qdev, AddressSpace *as, int ports)
+void ahci_init(AHCIState *s, DeviceState *qdev)
 {
-    qemu_irq *irqs;
-    int i;
-
-    s->as = as;
-    s->ports = ports;
-    s->dev = g_new0(AHCIDevice, ports);
     s->container = qdev;
-    ahci_reg_init(s);
     /* XXX BAR size should be 1k, but that breaks, so bump it to 4k for now */
     memory_region_init_io(&s->mem, OBJECT(qdev), &ahci_mem_ops, s,
                           "ahci", AHCI_MEM_BAR_SIZE);
     memory_region_init_io(&s->idp, OBJECT(qdev), &ahci_idp_ops, s,
                           "ahci-idp", 32);
+}
 
-    irqs = qemu_allocate_irqs(ahci_irq_set, s, s->ports);
+void ahci_realize(AHCIState *s, DeviceState *qdev, AddressSpace *as, int ports)
+{
+    qemu_irq *irqs;
+    int i;
 
+    s->as = as;
+    s->ports = ports;
+    s->dev = g_new0(AHCIDevice, ports);
+    ahci_reg_init(s);
+    irqs = qemu_allocate_irqs(ahci_irq_set, s, s->ports);
     for (i = 0; i < s->ports; i++) {
         AHCIDevice *ad = &s->dev[i];
 
@@ -1648,17 +1650,24 @@ static void sysbus_ahci_reset(DeviceState *dev)
     ahci_reset(&s->ahci);
 }
 
-static void sysbus_ahci_realize(DeviceState *dev, Error **errp)
+static void sysbus_ahci_init(Object *obj)
 {
-    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
-    SysbusAHCIState *s = SYSBUS_AHCI(dev);
+    SysbusAHCIState *s = SYSBUS_AHCI(obj);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
 
-    ahci_init(&s->ahci, dev, &address_space_memory, s->num_ports);
+    ahci_init(&s->ahci, DEVICE(obj));
 
     sysbus_init_mmio(sbd, &s->ahci.mem);
     sysbus_init_irq(sbd, &s->ahci.irq);
 }
 
+static void sysbus_ahci_realize(DeviceState *dev, Error **errp)
+{
+    SysbusAHCIState *s = SYSBUS_AHCI(dev);
+
+    ahci_realize(&s->ahci, dev, &address_space_memory, s->num_ports);
+}
+
 static Property sysbus_ahci_properties[] = {
     DEFINE_PROP_UINT32("num-ports", SysbusAHCIState, num_ports, 1),
     DEFINE_PROP_END_OF_LIST(),
@@ -1679,6 +1688,7 @@ static const TypeInfo sysbus_ahci_info = {
     .name          = TYPE_SYSBUS_AHCI,
     .parent        = TYPE_SYS_BUS_DEVICE,
     .instance_size = sizeof(SysbusAHCIState),
+    .instance_init = sysbus_ahci_init,
     .class_init    = sysbus_ahci_class_init,
 };
 
diff --git a/hw/ide/ahci.h b/hw/ide/ahci.h
index c9b3805..4ccaf5d 100644
--- a/hw/ide/ahci.h
+++ b/hw/ide/ahci.h
@@ -366,7 +366,8 @@ typedef struct SDBFIS {
     uint32_t payload;
 } QEMU_PACKED SDBFIS;
 
-void ahci_init(AHCIState *s, DeviceState *qdev, AddressSpace *as, int ports);
+void ahci_realize(AHCIState *s, DeviceState *qdev, AddressSpace *as, int ports);
+void ahci_init(AHCIState *s, DeviceState *qdev);
 void ahci_uninit(AHCIState *s);
 
 void ahci_reset(AHCIState *s);
diff --git a/hw/ide/ich.c b/hw/ide/ich.c
index 350c7f1..16925fa 100644
--- a/hw/ide/ich.c
+++ b/hw/ide/ich.c
@@ -97,6 +97,13 @@ static void pci_ich9_reset(DeviceState *dev)
     ahci_reset(&d->ahci);
 }
 
+static void pci_ich9_ahci_init(Object *obj)
+{
+    struct AHCIPCIState *d = ICH_AHCI(obj);
+
+    ahci_init(&d->ahci, DEVICE(obj));
+}
+
 static void pci_ich9_ahci_realize(PCIDevice *dev, Error **errp)
 {
     struct AHCIPCIState *d;
@@ -104,7 +111,7 @@ static void pci_ich9_ahci_realize(PCIDevice *dev, Error **errp)
     uint8_t *sata_cap;
     d = ICH_AHCI(dev);
 
-    ahci_init(&d->ahci, DEVICE(dev), pci_get_address_space(dev), 6);
+    ahci_realize(&d->ahci, DEVICE(dev), pci_get_address_space(dev), 6);
 
     pci_config_set_prog_interface(dev->config, AHCI_PROGMODE_MAJOR_REV_1);
 
@@ -171,6 +178,7 @@ static const TypeInfo ich_ahci_info = {
     .name          = TYPE_ICH9_AHCI,
     .parent        = TYPE_PCI_DEVICE,
     .instance_size = sizeof(AHCIPCIState),
+    .instance_init = pci_ich9_ahci_init,
     .class_init    = ich_ahci_class_init,
 };
 
-- 
1.9.1

[Qemu-devel] [RFC 3/4] ahci: Add allwinner AHCI

[Peter Crosthwaite]

Add a Sysbus AHCI subclass for the Allwinner AHCI. It has a few extra
vendor specific registers that are used for phy and power init.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
---
 hw/ide/ahci.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 hw/ide/ahci.h | 16 ++++++++++
 2 files changed, 114 insertions(+)

diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
index eff01b2..a7fa147 100644
--- a/hw/ide/ahci.c
+++ b/hw/ide/ahci.c
@@ -1692,9 +1692,107 @@ static const TypeInfo sysbus_ahci_info = {
     .class_init    = sysbus_ahci_class_init,
 };
 
+#define ALLWINNER_AHCI_MMIO_OFF  0x80
+#define ALLWINNER_AHCI_MMIO_SIZE 0x80
+
+#define ALLWINNER_AHCI_BISTAFR    ((0xa0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_BISTCR     ((0xa4 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_BISTFCTR   ((0xa8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_BISTSR     ((0xac - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_BISTDECR   ((0xb0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_DIAGNR0    ((0xb4 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_DIAGNR1    ((0xb8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_OOBR       ((0xbc - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_PHYCS0R    ((0xc0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_PHYCS1R    ((0xc4 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_PHYCS2R    ((0xc8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_TIMER1MS   ((0xe0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_GPARAM1R   ((0xe8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_GPARAM2R   ((0xec - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_PPARAMR    ((0xf0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_TESTR      ((0xf4 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_VERSIONR   ((0xf8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_IDR        ((0xfc - ALLWINNER_AHCI_MMIO_OFF) / 4)
+#define ALLWINNER_AHCI_RWCR       ((0xfc - ALLWINNER_AHCI_MMIO_OFF) / 4)
+
+static uint64_t allwinner_ahci_mem_read(void *opaque, hwaddr addr,
+                                        unsigned size)
+{
+    AllwinnerAHCIState *a = opaque;
+    uint64_t val = a->regs[addr/4];
+
+    switch (addr / 4) {
+    case ALLWINNER_AHCI_PHYCS0R:
+        val |= 0x2 << 28;
+        break;
+    case ALLWINNER_AHCI_PHYCS2R:
+        val &= ~(0x1 << 24);
+        break;
+    }
+    DPRINTF(-1, "addr=0x%" HWADDR_PRIx " val=0x%" PRIx64 ", size=%d\n",
+            addr, val, size);
+    return  val;
+}
+
+static void allwinner_ahci_mem_write(void *opaque, hwaddr addr,
+                                     uint64_t val, unsigned size)
+{
+    AllwinnerAHCIState *a = opaque;
+
+    DPRINTF(-1, "addr=0x%" HWADDR_PRIx " val=0x%" PRIx64 ", size=%d\n",
+            addr, val, size);
+    a->regs[addr/4] = val;
+}
+
+static const MemoryRegionOps allwinner_ahci_mem_ops = {
+    .read = allwinner_ahci_mem_read,
+    .write = allwinner_ahci_mem_write,
+    .valid.min_access_size = 4,
+    .valid.max_access_size = 4,
+    .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static void allwinner_ahci_init(Object *obj)
+{
+    SysbusAHCIState *s = SYSBUS_AHCI(obj);
+    AllwinnerAHCIState *a = ALLWINNER_AHCI(obj);
+
+    memory_region_init_io(&a->mmio, OBJECT(obj), &allwinner_ahci_mem_ops, a,
+                          "allwinner_ahci", ALLWINNER_AHCI_MMIO_SIZE);
+    memory_region_add_subregion(&s->ahci.mem, ALLWINNER_AHCI_MMIO_OFF,
+                                &a->mmio);
+}
+
+static const VMStateDescription vmstate_allwinner_ahci = {
+    .name = "a10.pic",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT32_ARRAY(regs, AllwinnerAHCIState,
+                             ALLWINNER_AHCI_MMIO_SIZE/4),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static void allwinner_ahci_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->vmsd = &vmstate_allwinner_ahci;
+}
+
+static const TypeInfo allwinner_ahci_info = {
+    .name          = TYPE_ALLWINNER_AHCI,
+    .parent        = TYPE_SYSBUS_AHCI,
+    .instance_size = sizeof(AllwinnerAHCIState),
+    .instance_init = allwinner_ahci_init,
+    .class_init    = allwinner_ahci_class_init,
+};
+
 static void sysbus_ahci_register_types(void)
 {
     type_register_static(&sysbus_ahci_info);
+    type_register_static(&allwinner_ahci_info);
 }
 
 type_init(sysbus_ahci_register_types)
diff --git a/hw/ide/ahci.h b/hw/ide/ahci.h
index 4ccaf5d..8973249 100644
--- a/hw/ide/ahci.h
+++ b/hw/ide/ahci.h
@@ -386,4 +386,20 @@ typedef struct SysbusAHCIState {
     uint32_t num_ports;
 } SysbusAHCIState;
 
+#define TYPE_ALLWINNER_AHCI "allwinner-ahci"
+#define ALLWINNER_AHCI(obj) OBJECT_CHECK(AllwinnerAHCIState, (obj), \
+                       TYPE_ALLWINNER_AHCI)
+
+#define ALLWINNER_AHCI_MMIO_OFF  0x80
+#define ALLWINNER_AHCI_MMIO_SIZE 0x80
+
+typedef struct AllwinnerAHCIState {
+    /*< private >*/
+    SysbusAHCIState parent_obj;
+    /*< public >*/
+
+    MemoryRegion mmio;
+    uint32_t regs[ALLWINNER_AHCI_MMIO_SIZE/4];
+} AllwinnerAHCIState;
+
 #endif /* HW_IDE_AHCI_H */
-- 
1.9.1

Re: [Qemu-devel] [RFC 3/4] ahci: Add allwinner AHCI

[John Snow]

Is there any spec or documentation I can cross-reference this against?

I gather this exists within the vendor-specific reserved region from
0xA0 to 0xFF just prior to the port registers, so this all /looks/ like
it's right, I just don't have any way to verify it.

On 10/11/2015 12:21 PM, Peter Crosthwaite wrote:
> Add a Sysbus AHCI subclass for the Allwinner AHCI. It has a few extra
> vendor specific registers that are used for phy and power init.
> 
> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
> ---
>  hw/ide/ahci.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  hw/ide/ahci.h | 16 ++++++++++
>  2 files changed, 114 insertions(+)
> 
> diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
> index eff01b2..a7fa147 100644
> --- a/hw/ide/ahci.c
> +++ b/hw/ide/ahci.c
> @@ -1692,9 +1692,107 @@ static const TypeInfo sysbus_ahci_info = {
>      .class_init    = sysbus_ahci_class_init,
>  };
>  
> +#define ALLWINNER_AHCI_MMIO_OFF  0x80
> +#define ALLWINNER_AHCI_MMIO_SIZE 0x80
> +
> +#define ALLWINNER_AHCI_BISTAFR    ((0xa0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_BISTCR     ((0xa4 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_BISTFCTR   ((0xa8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_BISTSR     ((0xac - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_BISTDECR   ((0xb0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_DIAGNR0    ((0xb4 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_DIAGNR1    ((0xb8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_OOBR       ((0xbc - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_PHYCS0R    ((0xc0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_PHYCS1R    ((0xc4 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_PHYCS2R    ((0xc8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_TIMER1MS   ((0xe0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_GPARAM1R   ((0xe8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_GPARAM2R   ((0xec - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_PPARAMR    ((0xf0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_TESTR      ((0xf4 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_VERSIONR   ((0xf8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_IDR        ((0xfc - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +#define ALLWINNER_AHCI_RWCR       ((0xfc - ALLWINNER_AHCI_MMIO_OFF) / 4)
> +
> +static uint64_t allwinner_ahci_mem_read(void *opaque, hwaddr addr,
> +                                        unsigned size)
> +{
> +    AllwinnerAHCIState *a = opaque;
> +    uint64_t val = a->regs[addr/4];
> +
> +    switch (addr / 4) {
> +    case ALLWINNER_AHCI_PHYCS0R:
> +        val |= 0x2 << 28;
> +        break;
> +    case ALLWINNER_AHCI_PHYCS2R:
> +        val &= ~(0x1 << 24);
> +        break;
> +    }
> +    DPRINTF(-1, "addr=0x%" HWADDR_PRIx " val=0x%" PRIx64 ", size=%d\n",
> +            addr, val, size);
> +    return  val;
> +}
> +
> +static void allwinner_ahci_mem_write(void *opaque, hwaddr addr,
> +                                     uint64_t val, unsigned size)
> +{
> +    AllwinnerAHCIState *a = opaque;
> +
> +    DPRINTF(-1, "addr=0x%" HWADDR_PRIx " val=0x%" PRIx64 ", size=%d\n",
> +            addr, val, size);
> +    a->regs[addr/4] = val;
> +}
> +
> +static const MemoryRegionOps allwinner_ahci_mem_ops = {
> +    .read = allwinner_ahci_mem_read,
> +    .write = allwinner_ahci_mem_write,
> +    .valid.min_access_size = 4,
> +    .valid.max_access_size = 4,

Are you sure devices won't try to read individual bytes for error codes
out of these vendor registers?

> +    .endianness = DEVICE_LITTLE_ENDIAN,
> +};
> +
> +static void allwinner_ahci_init(Object *obj)
> +{
> +    SysbusAHCIState *s = SYSBUS_AHCI(obj);
> +    AllwinnerAHCIState *a = ALLWINNER_AHCI(obj);
> +
> +    memory_region_init_io(&a->mmio, OBJECT(obj), &allwinner_ahci_mem_ops, a,
> +                          "allwinner_ahci", ALLWINNER_AHCI_MMIO_SIZE);
> +    memory_region_add_subregion(&s->ahci.mem, ALLWINNER_AHCI_MMIO_OFF,
> +                                &a->mmio);
> +}
> +
> +static const VMStateDescription vmstate_allwinner_ahci = {
> +    .name = "a10.pic",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .fields = (VMStateField[]) {
> +        VMSTATE_UINT32_ARRAY(regs, AllwinnerAHCIState,
> +                             ALLWINNER_AHCI_MMIO_SIZE/4),
> +        VMSTATE_END_OF_LIST()
> +    }
> +};
> +
> +static void allwinner_ahci_class_init(ObjectClass *klass, void *data)
> +{
> +    DeviceClass *dc = DEVICE_CLASS(klass);
> +
> +    dc->vmsd = &vmstate_allwinner_ahci;
> +}
> +
> +static const TypeInfo allwinner_ahci_info = {
> +    .name          = TYPE_ALLWINNER_AHCI,
> +    .parent        = TYPE_SYSBUS_AHCI,
> +    .instance_size = sizeof(AllwinnerAHCIState),
> +    .instance_init = allwinner_ahci_init,
> +    .class_init    = allwinner_ahci_class_init,
> +};
> +
>  static void sysbus_ahci_register_types(void)
>  {
>      type_register_static(&sysbus_ahci_info);
> +    type_register_static(&allwinner_ahci_info);
>  }
>  
>  type_init(sysbus_ahci_register_types)
> diff --git a/hw/ide/ahci.h b/hw/ide/ahci.h
> index 4ccaf5d..8973249 100644
> --- a/hw/ide/ahci.h
> +++ b/hw/ide/ahci.h
> @@ -386,4 +386,20 @@ typedef struct SysbusAHCIState {
>      uint32_t num_ports;
>  } SysbusAHCIState;
>  
> +#define TYPE_ALLWINNER_AHCI "allwinner-ahci"
> +#define ALLWINNER_AHCI(obj) OBJECT_CHECK(AllwinnerAHCIState, (obj), \
> +                       TYPE_ALLWINNER_AHCI)
> +
> +#define ALLWINNER_AHCI_MMIO_OFF  0x80
> +#define ALLWINNER_AHCI_MMIO_SIZE 0x80
> +
> +typedef struct AllwinnerAHCIState {
> +    /*< private >*/
> +    SysbusAHCIState parent_obj;
> +    /*< public >*/
> +
> +    MemoryRegion mmio;
> +    uint32_t regs[ALLWINNER_AHCI_MMIO_SIZE/4];
> +} AllwinnerAHCIState;
> +
>  #endif /* HW_IDE_AHCI_H */
> 

Re: [Qemu-devel] [RFC 3/4] ahci: Add allwinner AHCI

[Peter Crosthwaite]

On Mon, Oct 12, 2015 at 4:09 PM, John Snow <jsnow@redhat.com> wrote:
> Is there any spec or documentation I can cross-reference this against?
>

Not that I know of. I am running off a combination of experiments
(looking at messages from P1) and the Linux driver source.

> I gather this exists within the vendor-specific reserved region from
> 0xA0 to 0xFF just prior to the port registers, so this all /looks/ like
> it's right, I just don't have any way to verify it.
>
> On 10/11/2015 12:21 PM, Peter Crosthwaite wrote:
>> Add a Sysbus AHCI subclass for the Allwinner AHCI. It has a few extra
>> vendor specific registers that are used for phy and power init.
>>
>> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
>> ---
>>  hw/ide/ahci.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>  hw/ide/ahci.h | 16 ++++++++++
>>  2 files changed, 114 insertions(+)
>>
>> diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
>> index eff01b2..a7fa147 100644
>> --- a/hw/ide/ahci.c
>> +++ b/hw/ide/ahci.c
>> @@ -1692,9 +1692,107 @@ static const TypeInfo sysbus_ahci_info = {
>>      .class_init    = sysbus_ahci_class_init,
>>  };
>>
>> +#define ALLWINNER_AHCI_MMIO_OFF  0x80
>> +#define ALLWINNER_AHCI_MMIO_SIZE 0x80
>> +
>> +#define ALLWINNER_AHCI_BISTAFR    ((0xa0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_BISTCR     ((0xa4 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_BISTFCTR   ((0xa8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_BISTSR     ((0xac - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_BISTDECR   ((0xb0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_DIAGNR0    ((0xb4 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_DIAGNR1    ((0xb8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_OOBR       ((0xbc - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_PHYCS0R    ((0xc0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_PHYCS1R    ((0xc4 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_PHYCS2R    ((0xc8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_TIMER1MS   ((0xe0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_GPARAM1R   ((0xe8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_GPARAM2R   ((0xec - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_PPARAMR    ((0xf0 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_TESTR      ((0xf4 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_VERSIONR   ((0xf8 - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_IDR        ((0xfc - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +#define ALLWINNER_AHCI_RWCR       ((0xfc - ALLWINNER_AHCI_MMIO_OFF) / 4)
>> +
>> +static uint64_t allwinner_ahci_mem_read(void *opaque, hwaddr addr,
>> +                                        unsigned size)
>> +{
>> +    AllwinnerAHCIState *a = opaque;
>> +    uint64_t val = a->regs[addr/4];
>> +
>> +    switch (addr / 4) {
>> +    case ALLWINNER_AHCI_PHYCS0R:
>> +        val |= 0x2 << 28;
>> +        break;
>> +    case ALLWINNER_AHCI_PHYCS2R:
>> +        val &= ~(0x1 << 24);
>> +        break;
>> +    }
>> +    DPRINTF(-1, "addr=0x%" HWADDR_PRIx " val=0x%" PRIx64 ", size=%d\n",
>> +            addr, val, size);
>> +    return  val;
>> +}
>> +
>> +static void allwinner_ahci_mem_write(void *opaque, hwaddr addr,
>> +                                     uint64_t val, unsigned size)
>> +{
>> +    AllwinnerAHCIState *a = opaque;
>> +
>> +    DPRINTF(-1, "addr=0x%" HWADDR_PRIx " val=0x%" PRIx64 ", size=%d\n",
>> +            addr, val, size);
>> +    a->regs[addr/4] = val;
>> +}
>> +
>> +static const MemoryRegionOps allwinner_ahci_mem_ops = {
>> +    .read = allwinner_ahci_mem_read,
>> +    .write = allwinner_ahci_mem_write,
>> +    .valid.min_access_size = 4,
>> +    .valid.max_access_size = 4,
>
> Are you sure devices won't try to read individual bytes for error codes
> out of these vendor registers?
>

No idea.

Regards,
Peter

>> +    .endianness = DEVICE_LITTLE_ENDIAN,
>> +};
>> +
>> +static void allwinner_ahci_init(Object *obj)
>> +{
>> +    SysbusAHCIState *s = SYSBUS_AHCI(obj);
>> +    AllwinnerAHCIState *a = ALLWINNER_AHCI(obj);
>> +
>> +    memory_region_init_io(&a->mmio, OBJECT(obj), &allwinner_ahci_mem_ops, a,
>> +                          "allwinner_ahci", ALLWINNER_AHCI_MMIO_SIZE);
>> +    memory_region_add_subregion(&s->ahci.mem, ALLWINNER_AHCI_MMIO_OFF,
>> +                                &a->mmio);
>> +}
>> +
>> +static const VMStateDescription vmstate_allwinner_ahci = {
>> +    .name = "a10.pic",
>> +    .version_id = 1,
>> +    .minimum_version_id = 1,
>> +    .fields = (VMStateField[]) {
>> +        VMSTATE_UINT32_ARRAY(regs, AllwinnerAHCIState,
>> +                             ALLWINNER_AHCI_MMIO_SIZE/4),
>> +        VMSTATE_END_OF_LIST()
>> +    }
>> +};
>> +
>> +static void allwinner_ahci_class_init(ObjectClass *klass, void *data)
>> +{
>> +    DeviceClass *dc = DEVICE_CLASS(klass);
>> +
>> +    dc->vmsd = &vmstate_allwinner_ahci;
>> +}
>> +
>> +static const TypeInfo allwinner_ahci_info = {
>> +    .name          = TYPE_ALLWINNER_AHCI,
>> +    .parent        = TYPE_SYSBUS_AHCI,
>> +    .instance_size = sizeof(AllwinnerAHCIState),
>> +    .instance_init = allwinner_ahci_init,
>> +    .class_init    = allwinner_ahci_class_init,
>> +};
>> +
>>  static void sysbus_ahci_register_types(void)
>>  {
>>      type_register_static(&sysbus_ahci_info);
>> +    type_register_static(&allwinner_ahci_info);
>>  }
>>
>>  type_init(sysbus_ahci_register_types)
>> diff --git a/hw/ide/ahci.h b/hw/ide/ahci.h
>> index 4ccaf5d..8973249 100644
>> --- a/hw/ide/ahci.h
>> +++ b/hw/ide/ahci.h
>> @@ -386,4 +386,20 @@ typedef struct SysbusAHCIState {
>>      uint32_t num_ports;
>>  } SysbusAHCIState;
>>
>> +#define TYPE_ALLWINNER_AHCI "allwinner-ahci"
>> +#define ALLWINNER_AHCI(obj) OBJECT_CHECK(AllwinnerAHCIState, (obj), \
>> +                       TYPE_ALLWINNER_AHCI)
>> +
>> +#define ALLWINNER_AHCI_MMIO_OFF  0x80
>> +#define ALLWINNER_AHCI_MMIO_SIZE 0x80
>> +
>> +typedef struct AllwinnerAHCIState {
>> +    /*< private >*/
>> +    SysbusAHCIState parent_obj;
>> +    /*< public >*/
>> +
>> +    MemoryRegion mmio;
>> +    uint32_t regs[ALLWINNER_AHCI_MMIO_SIZE/4];
>> +} AllwinnerAHCIState;
>> +
>>  #endif /* HW_IDE_AHCI_H */
>>

Re: [Qemu-devel] [RFC 3/4] ahci: Add allwinner AHCI

[Beniamino Galvani]

On Sun, Oct 11, 2015 at 09:21:35AM -0700, Peter Crosthwaite wrote:
> --- a/hw/ide/ahci.c
> +++ b/hw/ide/ahci.c
> @@ -1692,9 +1692,107 @@ static const TypeInfo sysbus_ahci_info = {
>      .class_init    = sysbus_ahci_class_init,
>  };
>  
> +#define ALLWINNER_AHCI_MMIO_OFF  0x80
> +#define ALLWINNER_AHCI_MMIO_SIZE 0x80

These are already defined in the header file.

> +static const VMStateDescription vmstate_allwinner_ahci = {
> +    .name = "a10.pic",

.name = "allwinner-ahci" ?

Beniamino

Re: [Qemu-devel] [RFC 3/4] ahci: Add allwinner AHCI

[Peter Crosthwaite]

On Tue, Oct 13, 2015 at 11:28 AM, Beniamino Galvani <b.galvani@gmail.com> wrote:
> On Sun, Oct 11, 2015 at 09:21:35AM -0700, Peter Crosthwaite wrote:
>> --- a/hw/ide/ahci.c
>> +++ b/hw/ide/ahci.c
>> @@ -1692,9 +1692,107 @@ static const TypeInfo sysbus_ahci_info = {
>>      .class_init    = sysbus_ahci_class_init,
>>  };
>>
>> +#define ALLWINNER_AHCI_MMIO_OFF  0x80
>> +#define ALLWINNER_AHCI_MMIO_SIZE 0x80
>
> These are already defined in the header file.
>

Dropped.

>> +static const VMStateDescription vmstate_allwinner_ahci = {
>> +    .name = "a10.pic",
>
> .name = "allwinner-ahci" ?
>

Fixed. I also tweaked the name of the memory region to use - instead
of _ to match this.

Thanks.

Regards,
Peter

> Beniamino

[Qemu-devel] [RFC 4/4] arm: allwinner-a10: Add SATA

[Peter Crosthwaite]

Add the Allwinner A10 AHCI controller module to the SoC.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
---
 hw/arm/allwinner-a10.c         | 11 +++++++++++
 include/hw/arm/allwinner-a10.h |  5 +++++
 2 files changed, 16 insertions(+)

diff --git a/hw/arm/allwinner-a10.c b/hw/arm/allwinner-a10.c
index 56e924d..145038d 100644
--- a/hw/arm/allwinner-a10.c
+++ b/hw/arm/allwinner-a10.c
@@ -42,6 +42,9 @@ static void aw_a10_init(Object *obj)
 
     object_initialize(&s->ccm, sizeof(s->ccm), TYPE_AW_A10_CCM);
     qdev_set_parent_bus(DEVICE(&s->ccm), sysbus_get_default());
+
+    object_initialize(&s->sata, sizeof(s->sata), TYPE_ALLWINNER_AHCI);
+    qdev_set_parent_bus(DEVICE(&s->sata), sysbus_get_default());
 }
 
 static void aw_a10_realize(DeviceState *dev, Error **errp)
@@ -104,6 +107,14 @@ static void aw_a10_realize(DeviceState *dev, Error **errp)
     sysbusdev = SYS_BUS_DEVICE(&s->ccm);
     sysbus_mmio_map(sysbusdev, 0, AW_A10_CCM_REG_BASE);
 
+    object_property_set_bool(OBJECT(&s->sata), true, "realized", &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->sata), 0, AW_A10_SATA_BASE);
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->sata), 0, s->irq[56]);
+
     /* FIXME use a qdev chardev prop instead of serial_hds[] */
     serial_mm_init(get_system_memory(), AW_A10_UART0_REG_BASE, 2, s->irq[1],
                    115200, serial_hds[0], DEVICE_NATIVE_ENDIAN);
diff --git a/include/hw/arm/allwinner-a10.h b/include/hw/arm/allwinner-a10.h
index 88632c0..e0daff8 100644
--- a/include/hw/arm/allwinner-a10.h
+++ b/include/hw/arm/allwinner-a10.h
@@ -8,6 +8,8 @@
 #include "hw/intc/allwinner-a10-pic.h"
 #include "hw/net/allwinner_emac.h"
 #include "hw/misc/allwinner-a10-ccm.h"
+#include "hw/ide/pci.h"
+#include "hw/ide/ahci.h"
 
 #include "sysemu/sysemu.h"
 #include "exec/address-spaces.h"
@@ -18,6 +20,7 @@
 #define AW_A10_PIT_REG_BASE     0x01c20c00
 #define AW_A10_UART0_REG_BASE   0x01c28000
 #define AW_A10_EMAC_BASE        0x01c0b000
+#define AW_A10_SATA_BASE        0x01c18000
 
 #define AW_A10_SDRAM_BASE       0x40000000
 
@@ -35,6 +38,8 @@ typedef struct AwA10State {
     AwA10PICState intc;
     AwEmacState emac;
     AwA10CCMState ccm;
+
+    AllwinnerAHCIState sata;
 } AwA10State;
 
 #define ALLWINNER_H_
-- 
1.9.1

Re: [Qemu-devel] [RFC 4/4] arm: allwinner-a10: Add SATA

[John Snow]

On 10/11/2015 12:21 PM, Peter Crosthwaite wrote:
> Add the Allwinner A10 AHCI controller module to the SoC.
> 
> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
> ---
>  hw/arm/allwinner-a10.c         | 11 +++++++++++
>  include/hw/arm/allwinner-a10.h |  5 +++++
>  2 files changed, 16 insertions(+)
> 
> diff --git a/hw/arm/allwinner-a10.c b/hw/arm/allwinner-a10.c
> index 56e924d..145038d 100644
> --- a/hw/arm/allwinner-a10.c
> +++ b/hw/arm/allwinner-a10.c
> @@ -42,6 +42,9 @@ static void aw_a10_init(Object *obj)
>  
>      object_initialize(&s->ccm, sizeof(s->ccm), TYPE_AW_A10_CCM);
>      qdev_set_parent_bus(DEVICE(&s->ccm), sysbus_get_default());
> +
> +    object_initialize(&s->sata, sizeof(s->sata), TYPE_ALLWINNER_AHCI);
> +    qdev_set_parent_bus(DEVICE(&s->sata), sysbus_get_default());
>  }
>  
>  static void aw_a10_realize(DeviceState *dev, Error **errp)
> @@ -104,6 +107,14 @@ static void aw_a10_realize(DeviceState *dev, Error **errp)
>      sysbusdev = SYS_BUS_DEVICE(&s->ccm);
>      sysbus_mmio_map(sysbusdev, 0, AW_A10_CCM_REG_BASE);
>  
> +    object_property_set_bool(OBJECT(&s->sata), true, "realized", &err);
> +    if (err) {
> +        error_propagate(errp, err);
> +        return;
> +    }
> +    sysbus_mmio_map(SYS_BUS_DEVICE(&s->sata), 0, AW_A10_SATA_BASE);
> +    sysbus_connect_irq(SYS_BUS_DEVICE(&s->sata), 0, s->irq[56]);
> +
>      /* FIXME use a qdev chardev prop instead of serial_hds[] */
>      serial_mm_init(get_system_memory(), AW_A10_UART0_REG_BASE, 2, s->irq[1],
>                     115200, serial_hds[0], DEVICE_NATIVE_ENDIAN);
> diff --git a/include/hw/arm/allwinner-a10.h b/include/hw/arm/allwinner-a10.h
> index 88632c0..e0daff8 100644
> --- a/include/hw/arm/allwinner-a10.h
> +++ b/include/hw/arm/allwinner-a10.h
> @@ -8,6 +8,8 @@
>  #include "hw/intc/allwinner-a10-pic.h"
>  #include "hw/net/allwinner_emac.h"
>  #include "hw/misc/allwinner-a10-ccm.h"
> +#include "hw/ide/pci.h"
> +#include "hw/ide/ahci.h"
>  
>  #include "sysemu/sysemu.h"
>  #include "exec/address-spaces.h"
> @@ -18,6 +20,7 @@
>  #define AW_A10_PIT_REG_BASE     0x01c20c00
>  #define AW_A10_UART0_REG_BASE   0x01c28000
>  #define AW_A10_EMAC_BASE        0x01c0b000
> +#define AW_A10_SATA_BASE        0x01c18000
>  
>  #define AW_A10_SDRAM_BASE       0x40000000
>  
> @@ -35,6 +38,8 @@ typedef struct AwA10State {
>      AwA10PICState intc;
>      AwEmacState emac;
>      AwA10CCMState ccm;
> +
> +    AllwinnerAHCIState sata;
>  } AwA10State;
>  
>  #define ALLWINNER_H_
> 

Does this series have a pre-requisite patchset for this to apply cleanly?

--js

Re: [Qemu-devel] [RFC 4/4] arm: allwinner-a10: Add SATA

[Peter Crosthwaite]

On Mon, Oct 12, 2015 at 3:32 PM, John Snow <jsnow@redhat.com> wrote:
>
>
> On 10/11/2015 12:21 PM, Peter Crosthwaite wrote:
>> Add the Allwinner A10 AHCI controller module to the SoC.
>>
>> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
>> ---
>>  hw/arm/allwinner-a10.c         | 11 +++++++++++
>>  include/hw/arm/allwinner-a10.h |  5 +++++
>>  2 files changed, 16 insertions(+)
>>
>> diff --git a/hw/arm/allwinner-a10.c b/hw/arm/allwinner-a10.c
>> index 56e924d..145038d 100644
>> --- a/hw/arm/allwinner-a10.c
>> +++ b/hw/arm/allwinner-a10.c
>> @@ -42,6 +42,9 @@ static void aw_a10_init(Object *obj)
>>
>>      object_initialize(&s->ccm, sizeof(s->ccm), TYPE_AW_A10_CCM);
>>      qdev_set_parent_bus(DEVICE(&s->ccm), sysbus_get_default());
>> +
>> +    object_initialize(&s->sata, sizeof(s->sata), TYPE_ALLWINNER_AHCI);
>> +    qdev_set_parent_bus(DEVICE(&s->sata), sysbus_get_default());
>>  }
>>
>>  static void aw_a10_realize(DeviceState *dev, Error **errp)
>> @@ -104,6 +107,14 @@ static void aw_a10_realize(DeviceState *dev, Error **errp)
>>      sysbusdev = SYS_BUS_DEVICE(&s->ccm);
>>      sysbus_mmio_map(sysbusdev, 0, AW_A10_CCM_REG_BASE);
>>
>> +    object_property_set_bool(OBJECT(&s->sata), true, "realized", &err);
>> +    if (err) {
>> +        error_propagate(errp, err);
>> +        return;
>> +    }
>> +    sysbus_mmio_map(SYS_BUS_DEVICE(&s->sata), 0, AW_A10_SATA_BASE);
>> +    sysbus_connect_irq(SYS_BUS_DEVICE(&s->sata), 0, s->irq[56]);
>> +
>>      /* FIXME use a qdev chardev prop instead of serial_hds[] */
>>      serial_mm_init(get_system_memory(), AW_A10_UART0_REG_BASE, 2, s->irq[1],
>>                     115200, serial_hds[0], DEVICE_NATIVE_ENDIAN);
>> diff --git a/include/hw/arm/allwinner-a10.h b/include/hw/arm/allwinner-a10.h
>> index 88632c0..e0daff8 100644
>> --- a/include/hw/arm/allwinner-a10.h
>> +++ b/include/hw/arm/allwinner-a10.h
>> @@ -8,6 +8,8 @@
>>  #include "hw/intc/allwinner-a10-pic.h"
>>  #include "hw/net/allwinner_emac.h"
>>  #include "hw/misc/allwinner-a10-ccm.h"
>> +#include "hw/ide/pci.h"
>> +#include "hw/ide/ahci.h"
>>
>>  #include "sysemu/sysemu.h"
>>  #include "exec/address-spaces.h"
>> @@ -18,6 +20,7 @@
>>  #define AW_A10_PIT_REG_BASE     0x01c20c00
>>  #define AW_A10_UART0_REG_BASE   0x01c28000
>>  #define AW_A10_EMAC_BASE        0x01c0b000
>> +#define AW_A10_SATA_BASE        0x01c18000
>>
>>  #define AW_A10_SDRAM_BASE       0x40000000
>>
>> @@ -35,6 +38,8 @@ typedef struct AwA10State {
>>      AwA10PICState intc;
>>      AwEmacState emac;
>>      AwA10CCMState ccm;
>> +
>> +    AllwinnerAHCIState sata;
>>  } AwA10State;
>>
>>  #define ALLWINNER_H_
>>
>
> Does this series have a pre-requisite patchset for this to apply cleanly?

Yes I need to drop out the CCM patches that I have in the branch in V2. Sorry.

Regards,
Peter

>
> --js

Re: [Qemu-devel] [RFC 0/4] AHCI patches + Allwinner SATA

[Beniamino Galvani]

On Sun, Oct 11, 2015 at 09:21:32AM -0700, Peter Crosthwaite wrote:
> Hi John and Beniamino,
> 
> This patch series adds bear-minimum Allwinner SATA support.

Hi Peter,

can you suggest a qemu command line to test this?

Beniamino

Re: [Qemu-devel] [RFC 0/4] AHCI patches + Allwinner SATA

[Peter Crosthwaite]

On Mon, Oct 12, 2015 at 1:41 PM, Beniamino Galvani <b.galvani@gmail.com> wrote:
> On Sun, Oct 11, 2015 at 09:21:32AM -0700, Peter Crosthwaite wrote:
>> Hi John and Beniamino,
>>
>> This patch series adds bear-minimum Allwinner SATA support.
>
> Hi Peter,
>
> can you suggest a qemu command line to test this?
>

-drive file=path/to/rootfs.ext4,if=none,id=sata
-device ide-drive,drive=sata,bus=ide.0
--append "root=/dev/sda"

Regards,
Peter

> Beniamino

Re: [Qemu-devel] [RFC 0/4] AHCI patches + Allwinner SATA

[John Snow]

On 10/11/2015 12:21 PM, Peter Crosthwaite wrote:
> Hi John and Beniamino,
> 
> This patch series adds bear-minimum Allwinner SATA support.
> 
> P1 is a trivial to help debug AHCI.
> 
> Regards,
> Peter
> 
> Peter Crosthwaite (4):
>   ahci: Add some MMIO debug printfs
>   ahci: split realize and init
>   ahci: Add allwinner AHCI
>   arm: allwinner-a10: Add SATA
> 
>  hw/arm/allwinner-a10.c         |  11 +++
>  hw/ide/ahci.c                  | 155 ++++++++++++++++++++++++++++++++++++-----
>  hw/ide/ahci.h                  |  19 ++++-
>  hw/ide/ich.c                   |  10 ++-
>  include/hw/arm/allwinner-a10.h |   5 ++
>  5 files changed, 179 insertions(+), 21 deletions(-)
> 

Will you be sending the V2 that applies to current master, or do you
intend to try to get this in for 2.5?

Re: [Qemu-devel] [RFC 0/4] AHCI patches + Allwinner SATA

[Peter Crosthwaite]

On Mon, Oct 26, 2015 at 8:25 AM, John Snow <jsnow@redhat.com> wrote:
>
>
> On 10/11/2015 12:21 PM, Peter Crosthwaite wrote:
>> Hi John and Beniamino,
>>
>> This patch series adds bear-minimum Allwinner SATA support.
>>
>> P1 is a trivial to help debug AHCI.
>>
>> Regards,
>> Peter
>>
>> Peter Crosthwaite (4):
>>   ahci: Add some MMIO debug printfs
>>   ahci: split realize and init
>>   ahci: Add allwinner AHCI
>>   arm: allwinner-a10: Add SATA
>>
>>  hw/arm/allwinner-a10.c         |  11 +++
>>  hw/ide/ahci.c                  | 155 ++++++++++++++++++++++++++++++++++++-----
>>  hw/ide/ahci.h                  |  19 ++++-
>>  hw/ide/ich.c                   |  10 ++-
>>  include/hw/arm/allwinner-a10.h |   5 ++
>>  5 files changed, 179 insertions(+), 21 deletions(-)
>>
>
> Will you be sending the V2 that applies to current master, or do you
> intend to try to get this in for 2.5?

Both :) It would be good to get the functionality for 2.5. New version
on list (I called it V1 as this is the RFC).

Regards,
Peter