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| author | Philippe Mathieu-Daudé <philmd@linaro.org> | 2024-11-14 18:46:36 +0100 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <philmd@linaro.org> | 2025-01-13 17:16:04 +0100 |
| commit | 74f1caa8c33f608168c4224bb23d9a6453224a56 (patch) | |
| tree | 28f0ab4d31ddacfe728f7f517b0f33f9031d8629 /hw/net | |
| parent | ce336679b72cfb5cbbf1539d209764242fc5458a (diff) | |
| download | qemu-74f1caa8c33f608168c4224bb23d9a6453224a56.zip qemu-74f1caa8c33f608168c4224bb23d9a6453224a56.tar.gz qemu-74f1caa8c33f608168c4224bb23d9a6453224a56.tar.bz2 | |
hw/net/xilinx_ethlite: Map RESERVED I/O as unimplemented
In order to track access to reserved I/O space, use yet
another UnimplementedDevice covering the whole device
memory range. Mapped with lower priority (-1).
The memory flat view becomes:
(qemu) info mtree -f
FlatView #0
Root memory region: system
0000000081000000-00000000810007e3 (prio 0, ram): ethlite.tx[0]buf
00000000810007e4-00000000810007f3 (prio 0, i/o): ethlite.mdio
00000000810007f4-00000000810007ff (prio 0, i/o): ethlite.tx[0]io
0000000081000800-0000000081000fe3 (prio 0, ram): ethlite.tx[1]buf
0000000081000fe4-0000000081000ff3 (prio -1, i/o): ethlite.reserved @0000000000000fe4
0000000081000ff4-0000000081000fff (prio 0, i/o): ethlite.tx[1]io
0000000081001000-00000000810017e3 (prio 0, ram): ethlite.rx[0]buf
00000000810017e4-00000000810017fb (prio -1, i/o): ethlite.reserved @00000000000017e4
00000000810017fc-00000000810017ff (prio 0, i/o): ethlite.rx[0]io
0000000081001800-0000000081001fe3 (prio 0, ram): ethlite.rx[1]buf
0000000081001fe4-0000000081001ffb (prio -1, i/o): ethlite.reserved @0000000000001fe4
0000000081001ffc-0000000081001fff (prio 0, i/o): ethlite.rx[1]io
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241114210010.34502-20-philmd@linaro.org>
Diffstat (limited to 'hw/net')
| -rw-r--r-- | hw/net/xilinx_ethlite.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/hw/net/xilinx_ethlite.c b/hw/net/xilinx_ethlite.c index a7f6d1b..14bf2b2 100644 --- a/hw/net/xilinx_ethlite.c +++ b/hw/net/xilinx_ethlite.c @@ -94,6 +94,7 @@ struct XlnxXpsEthLite uint32_t c_rx_pingpong; unsigned int port_index; /* dual port RAM index */ + UnimplementedDeviceState rsvd; UnimplementedDeviceState mdio; XlnxXpsEthLitePort port[2]; }; @@ -303,6 +304,16 @@ static void xilinx_ethlite_realize(DeviceState *dev, Error **errp) memory_region_init(&s->container, OBJECT(dev), "xlnx.xps-ethernetlite", 0x2000); + object_initialize_child(OBJECT(dev), "ethlite.reserved", &s->rsvd, + TYPE_UNIMPLEMENTED_DEVICE); + qdev_prop_set_string(DEVICE(&s->rsvd), "name", "ethlite.reserved"); + qdev_prop_set_uint64(DEVICE(&s->rsvd), "size", + memory_region_size(&s->container)); + sysbus_realize(SYS_BUS_DEVICE(&s->rsvd), &error_fatal); + memory_region_add_subregion_overlap(&s->container, 0, + sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->rsvd), 0), + -1); + object_initialize_child(OBJECT(dev), "ethlite.mdio", &s->mdio, TYPE_UNIMPLEMENTED_DEVICE); qdev_prop_set_string(DEVICE(&s->mdio), "name", "ethlite.mdio"); |