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Hyeonggon Yoo f7509f462c hw/cxl/device: read from register values in mdev_reg_read() 
In the current mdev_reg_read() implementation, it consistently returns
that the Media Status is Ready (01b). This was fine until commit
25a52959f9 ("hw/cxl: Add support for device sanitation") because the
media was presumed to be ready.

However, as per the CXL 3.0 spec "8.2.9.8.5.1 Sanitize (Opcode 4400h)",
during sanitation, the Media State should be set to Disabled (11b). The
mentioned commit correctly sets it to Disabled, but mdev_reg_read()
still returns Media Status as Ready.

To address this, update mdev_reg_read() to read register values instead
of returning dummy values.

Note that __toggle_media() managed to not only write something
that no one read, it did it to the wrong register storage and
so changed the reported mailbox size which was definitely not
the intent. That gets fixed as a side effect of allocating
separate state storage for this register.

Fixes: commit 25a52959f9 ("hw/cxl: Add support for device sanitation")
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20240126120132.24248-7-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-02-14 06:09:32 -05:00
..
9pfs * configure: use a native non-cross compiler for linux-user 2024-01-04 19:55:20 +00:00
acpi * configure: use a native non-cross compiler for linux-user 2024-01-04 19:55:20 +00:00
adc hw/adc: Constify VMState 2023-12-29 11:17:30 +11:00
alpha hw/alpha/dp264: use pci_init_nic_devices() 2024-02-02 16:23:47 +00:00
arm smmu: Clear SMMUPciBus pointer cache when system reset 2024-02-14 06:09:32 -05:00
audio hw/audio/sb16: Do not migrate qdev properties 2024-01-05 16:20:15 +01:00
avr hw/avr/atmega: Fix wrong initial value of stack pointer 2023-11-28 14:27:12 +01:00
block hw/block/fdc-isa: Implement relocation and enabling/disabling for TYPE_ISA_FDC 2024-02-14 06:09:32 -05:00
char hw/char/parallel-isa: Implement relocation and enabling/disabling for TYPE_ISA_PARALLEL 2024-02-14 06:09:32 -05:00
core hw/core: Remove transitional infrastructure from BusClass 2024-02-02 13:51:57 +00:00
cpu target/arm: Move GTimer definitions to new 'gtimer.h' header 2024-01-26 11:30:49 +00:00
cris hw/net/etraxfs-eth: use qemu_configure_nic_device() 2024-02-02 16:23:47 +00:00
cxl hw/cxl/device: read from register values in mdev_reg_read() 2024-02-14 06:09:32 -05:00
display vga: sort-of implement word and double-word access modes 2024-01-18 10:43:14 +01:00
dma hw/dma: Constify VMState 2023-12-29 11:17:30 +11:00
fsi hw/fsi: Aspeed APB2OPB & On-chip peripheral bus 2024-02-01 08:33:18 +01:00
gpio hw/gpio: Constify VMState 2023-12-29 11:17:30 +11:00
hppa hw/net/lasi_i82596: use qemu_create_nic_device() 2024-02-02 16:23:47 +00:00
hyperv hv-balloon: use get_min_alignment() to express 32 GiB alignment 2024-02-04 17:42:03 +01:00
i2c hw/i2c: Constify VMState 2023-12-29 11:17:30 +11:00
i386 hw/i386/x86: Fix PIC interrupt handling if APIC is globally disabled 2024-02-14 06:09:32 -05:00
ide hw/ide: Constify VMState 2023-12-29 11:17:30 +11:00
input hw/virtio: Move vhost-user-input into virtio folder 2024-02-14 06:09:32 -05:00
intc hw/i386/x86: Fix PIC interrupt handling if APIC is globally disabled 2024-02-14 06:09:32 -05:00
ipack hw/ipack: Constify VMState 2023-12-29 11:17:30 +11:00
ipmi hw/ipmi: Constify VMState 2023-12-29 11:17:30 +11:00
isa hw/isa/vt82c686: Implement relocation and toggling of SuperI/O functions 2024-02-14 06:09:32 -05:00
loongarch hw/loongarch: use pci_init_nic_devices() 2024-02-02 16:23:47 +00:00
m68k hw/m68k/q800: use qemu_find_nic_info() 2024-02-02 16:23:47 +00:00
mem hw/mem/cxl_type3: Drop handling of failure of g_malloc0() and g_malloc() 2024-02-14 06:09:32 -05:00
microblaze hw/microblaze: use qemu_configure_nic_device() 2024-02-02 16:23:47 +00:00
mips hw/mips/jazz: use qemu_find_nic_info() 2024-02-02 16:23:47 +00:00
misc hw/misc/xlnx-versal-crl: Build it only once 2024-01-26 11:30:49 +00:00
net target/arm: fix exception syndrome for AArch32 bkpt insn 2024-02-02 18:56:32 +00:00
nios2 target/nios2: Deprecate the Nios II architecture 2023-11-23 14:10:04 +00:00
nubus trace-events: Fix the name of the tracing.rst file 2023-09-08 13:08:51 +03:00
nvme hw/nvme: Clean up local variable shadowing in nvme_ns_init() 2023-09-29 10:07:20 +02:00
nvram acpi: Clean up includes 2024-01-30 21:20:20 +03:00
openrisc hw/openrisc/openrisc_sim: use qemu_create_nic_device() 2024-02-02 16:23:47 +00:00
pci target/arm: fix exception syndrome for AArch32 bkpt insn 2024-02-02 18:56:32 +00:00
pci-bridge hw/pci-bridge/cxl_upstream: Drop g_malloc() failure handling 2024-02-14 06:09:32 -05:00
pci-host pci-host: designware: Limit value range of iATU viewport register 2024-02-02 13:51:58 +00:00
pcmcia hw/pcmcia/pxa2xx: Inline pxa2xx_pcmcia_init() 2023-10-27 12:48:57 +01:00
ppc hw/ppc/pegasos2: Let pegasos2 machine configure SuperI/O functions 2024-02-14 06:09:32 -05:00
rdma hw/rdma/vmw/pvrdma_cmd: Use correct struct in query_port() 2023-10-21 15:00:22 +03:00
remote Replace "iothread lock" with "BQL" in comments 2024-01-08 10:45:43 -05:00
riscv target/riscv: SMBIOS support for RISC-V virt machine 2024-02-09 20:43:14 +10:00
rtc hw/rtc: Constify VMState 2023-12-30 07:38:06 +11:00
rx hw/rx/rx62n: Use qdev_prop_set_array() 2023-11-10 18:19:13 +01:00
s390x target/arm: fix exception syndrome for AArch32 bkpt insn 2024-02-02 18:56:32 +00:00
scsi Block layer patches 2024-02-08 20:08:44 +00:00
sd hw/sd: Constify VMState 2023-12-30 07:38:06 +11:00
sensor hw/sensor: Constify VMState 2023-12-30 07:38:06 +11:00
sh4 hw/sh4/r2d: use pci_init_nic_devices() 2024-02-02 16:23:47 +00:00
smbios smbios: function to set default processor family 2024-02-09 20:43:14 +10:00
sparc hw/sparc/sun4m: use qemu_find_nic_info() 2024-02-02 16:23:47 +00:00
sparc64 hw/sparc64/sun4u: use pci_init_nic_devices() 2024-02-02 16:23:47 +00:00
ssi hw/ssi: Implement BCM2835 SPI Controller 2024-02-02 13:51:59 +00:00
timer hw/timer/hpet: Convert DPRINTF to trace events 2024-01-19 12:28:10 +01:00
tpm hw/tpm: Constify VMState 2023-12-30 07:38:06 +11:00
tricore hw/tricore: Log failing test in testdevice 2023-09-29 08:28:02 +02:00
ufs hw/ufs: avoid generating the same ID string for different LU devices 2023-12-05 13:57:18 +09:00
usb scsi: Don't ignore most usb-storage properties 2024-02-07 15:25:13 +01:00
vfio vfio/pci: Clear MSI-X IRQ index always 2024-01-29 08:26:25 +01:00
virtio virtio_iommu: Clear IOMMUPciBus pointer cache when system reset 2024-02-14 06:09:32 -05:00
watchdog hw/watchdog: Constify VMState 2023-12-30 07:38:06 +11:00
xen target/arm: fix exception syndrome for AArch32 bkpt insn 2024-02-02 18:56:32 +00:00
xenpv hw/xen: use qemu_create_nic_bus_devices() to instantiate Xen NICs 2024-02-02 16:23:47 +00:00
xtensa hw/xtensa/xtfpga: use qemu_create_nic_device() 2024-02-02 16:23:47 +00:00
Kconfig hw/fsi: Introduce IBM's Local bus 2024-02-01 08:13:30 +01:00
meson.build hw/fsi: Introduce IBM's Local bus 2024-02-01 08:13:30 +01:00