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dd0b3271e5
qemu/hw
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Maheswara Kurapati dd0b3271e5 hw/i2c: pmbus: Page #255 is valid page for read requests. 
Current implementation of the pmbus core driver treats the read request
for page 255 as invalid request and sets the invalid command bit (bit 7)
in the STATUS_CML register. As per the PMBus specification it is a valid
request.

Refer to the PMBus specification, revision 1.3.1, section 11.10 PAGE,
on the page 58:
  "Setting the PAGE to FFh means that all subsequent comands are to be
   applied to all outputs.

   Some commands, such as READ_TEMPERATURE, may use a common sensor but
   be available on all pages of a device. Such implementations are the
   decision of each device manufacturer or are specified in a PMBus
   Application Profile. Consult the manufacturer's documents or the
   Application Profile Specification as needed."

For e.g.,
The VOUT_MODE is a valid command for page 255 for maxim 31785 device.
refer to Table 1. PMBus Command Codes on page 14 in the datasheet.
https://datasheets.maximintegrated.com/en/ds/MAX31785.pdf

Fixes: 38870253f1 ("hw/i2c: pmbus: fix error returns and guard against out of range accesses")

Signed-off-by: Maheswara Kurapati <quic_mkurapat@quicinc.com>
Signed-off-by: Jae Hyun Yoo <quic_jaehyoo@quicinc.com>
Reviewed-by: Titus Rwantare <titusr@google.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220627154703.148943-4-quic_jaehyoo@quicinc.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-06-30 09:21:13 +02:00
..
9pfs trivial typos: namesapce 2022-06-28 11:06:44 +02:00
acpi trivial typos: namesapce 2022-06-28 11:06:44 +02:00
adc hw/adc/zynq-xadc: Use qemu_irq typedef 2022-05-19 16:19:02 +01:00
alpha Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
arm hw/arm/aspeed: add Qualcomm Firework BMC machine 2022-06-30 09:21:13 +02:00
audio hw/audio/cs4231a: Const'ify global tables 2022-06-11 11:44:50 +02:00
avr Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
block hw: m25p80: add WP# pin and SRWD bit for write protection 2022-06-30 09:21:13 +02:00
char acpi: serial-is: replace ISADeviceClass::build_aml with AcpiDevAmlIfClass:build_dev_aml 2022-06-09 19:32:48 -04:00
core qdev: unplug blocker for devices 2022-06-15 14:50:41 +01:00
cpu
cris
cxl pci-bridge/cxl_downstream: Add a CXL switch downstream port 2022-06-16 12:54:57 -04:00
display artist: set memory region owners for buffers to the artist device 2022-06-26 18:40:28 +01:00
dma ptimer: Rename PTIMER_POLICY_DEFAULT to PTIMER_POLICY_LEGACY 2022-05-19 16:19:03 +01:00
gpio hw/gpio: replace HWADDR_PRIx with PRIx64 2022-05-25 10:31:33 +02:00
hppa lasips2: move mapping of LASIPS2 registers to HPPA machine 2022-06-26 18:40:12 +01:00
hyperv hw/hyperv/vmbus: Remove unused vmbus_load/save_req() 2022-05-30 19:49:42 +02:00
i2c hw/i2c: pmbus: Page #255 is valid page for read requests. 2022-06-30 09:21:13 +02:00
i386 hw/i386/xen/xen-hvm: Inline xen_piix_pci_write_config_client() and remove it 2022-06-29 00:24:59 +02:00
ide hw/ide/atapi.c: Correct typos (CD-CDROM -> CD-ROM) 2022-06-28 12:03:25 +02:00
input ps2: remove update_irq() function and update_arg parameter 2022-06-26 18:40:12 +01:00
intc Trivial: 3 char repeat typos 2022-06-28 11:06:02 +02:00
ipack qbus: Rename qbus_create_inplace() to qbus_init() 2021-09-30 13:42:10 +01:00
ipmi acpi: ipmi: use AcpiDevAmlIf interface to build IPMI device descriptors 2022-06-09 19:32:49 -04:00
isa hw/i386/xen/xen-hvm: Inline xen_piix_pci_write_config_client() and remove it 2022-06-29 00:24:59 +02:00
loongarch hw/loongarch: Add LoongArch virt power manager support. 2022-06-06 18:14:13 +00:00
m68k ptimer: Rename PTIMER_POLICY_DEFAULT to PTIMER_POLICY_LEGACY 2022-05-19 16:19:03 +01:00
mem mem/cxl_type3: Add read and write functions for associated hostmem. 2022-05-13 07:57:26 -04:00
microblaze Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
mips pckbd: move mapping of I8042_MMIO registers to MIPS magnum machine 2022-06-26 18:40:12 +01:00
misc aspeed/hace: Accumulative mode supported 2022-06-30 09:21:13 +02:00
net Trivial: 3 char repeat typos 2022-06-28 11:06:02 +02:00
nios2 hw/nios2: Machine with a Vectored Interrupt Controller 2022-04-26 08:17:05 -07:00
nubus qbus: Rename qbus_create_inplace() to qbus_init() 2021-09-30 13:42:10 +01:00
nvme trivial typos: namesapce 2022-06-28 11:06:44 +02:00
nvram machine: use QAPI struct for boot configuration 2022-05-12 12:29:43 +02:00
openrisc hw/openrisc: use right OMPIC size variable 2022-05-15 10:33:01 +09:00
pci trivial patches pull request 20220629 2022-06-30 04:49:40 +05:30
pci-bridge pci-bridge/cxl_downstream: Add a CXL switch downstream port 2022-06-16 12:54:57 -04:00
pci-host hw/pci-host/i440fx: Remove unused parameter from i440fx_init() 2022-06-28 11:10:33 +02:00
pcmcia
ppc Trivial: 3 char repeat typos 2022-06-28 11:06:02 +02:00
rdma hw/pvrdma: Some cosmetic fixes 2022-04-26 12:25:14 +02:00
remote vfio-user: handle reset of remote device 2022-06-15 16:43:42 +01:00
riscv hw/core/loader: return image sizes as ssize_t 2022-06-10 09:31:42 +10:00
rtc hw/rtc/mc146818rtc: QOM'ify io_base offset 2022-06-11 11:44:50 +02:00
rx hw/rx: rx-gdbsim DTB load address aligned of 16byte. 2022-04-21 10:06:42 -07:00
s390x virtio: stop ioeventfd on reset 2022-06-14 16:50:30 +02:00
scsi Trivial: 3 char repeat typos 2022-06-28 11:06:02 +02:00
sd hw/sd/allwinner-sdhost: report FIFO water level as 1 when data ready 2022-05-30 12:34:46 +01:00
sensor hw/sensor: add Renesas raa228000 device 2022-03-08 18:46:48 +01:00
sh4 Use g_new() & friends where that makes obvious sense 2022-03-21 15:44:44 +01:00
smbios hw/smbios: Add table 4 parameter, "processor-id" 2022-03-06 05:28:55 -05:00
sparc machine: make memory-backend a link property 2022-05-12 12:29:44 +02:00
sparc64 hw: Reuse TYPE_I8042 define 2022-06-11 11:44:50 +02:00
ssi aspeed/smc: Fix potential overflow 2022-06-30 09:21:13 +02:00
timer Fix 'writeable' typos 2022-06-08 19:38:47 +01:00
tpm acpi: tpm-tis: use AcpiDevAmlIfClass:build_dev_aml to provide device's AML 2022-06-09 19:32:49 -04:00
tricore
usb usbredir: avoid queuing hello packet on snapshot restore 2022-06-14 10:34:36 +02:00
vfio ui/console: Do not return a value with ui_info 2022-06-14 10:34:37 +02:00
virtio virtio-iommu: Fix migration regression 2022-06-27 18:53:18 -04:00
watchdog aspeed/wdt: Add AST1030 support 2022-05-02 17:03:03 +02:00
xen hw/xen/xen_pt: Resolve igd_passthrough_isa_bridge_create() indirection 2022-05-12 12:07:06 +02:00
xenpv Warn user if the vga flag is passed but no vga device is created 2022-05-09 08:21:14 +02:00
xtensa hw/xtensa: fix reset value of MIROUT register of MX PIC 2022-05-06 15:27:40 -07:00
Kconfig hw/loongarch: Add support loongson3 virt machine type. 2022-06-06 18:09:03 +00:00
meson.build hw/loongarch: Add support loongson3 virt machine type. 2022-06-06 18:09:03 +00:00