Commit Graph

44116 Commits

Author SHA1 Message Date
Eric Blake
21a933ea33 chardev: Properly initialize ChardevCommon components
Commit d0d7708b forgot to parse logging for spice chardevs and
virtual consoles. This requires making qemu_chr_parse_common()
non-static. While at it, use a temporary variable to make the
code shorter, as well as reduce the churn when a later patch
alters the layout of simple unions.

Signed-off-by: Eric Blake <eblake@redhat.com>
CC: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1455927587-28033-2-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-25 16:11:29 +01:00
Gonglei
d61524486c memory: Remove unreachable return statement
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-Id: <1455935721-8804-4-git-send-email-arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-25 16:11:29 +01:00
Gonglei
3655cb9c73 memory: optimize qemu_get_ram_ptr and qemu_ram_ptr_length
these two functions consume too much cpu overhead to
find the RAMBlock by ram address.

After this patch, we can pass the RAMBlock pointer
to them so that they don't need to find the RAMBlock
anymore most of the time. We can get better performance
in address translation processing.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-Id: <1455935721-8804-3-git-send-email-arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-25 16:11:29 +01:00
Gonglei
58eaa2174e exec: store RAMBlock pointer into memory region
Each RAM memory region has a unique corresponding RAMBlock.
In the current realization, the memory region only stored
the ram_addr which means the offset of RAM address space,
We need to qurey the global ram.list to find the ram block
by ram_addr if we want to get the ram block, which is very
expensive.

Now, we store the RAMBlock pointer into memory region
structure. So, if we know the mr, we can easily get the
RAMBlock.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-Id: <1456130097-4208-2-git-send-email-arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-25 16:11:26 +01:00
Dimitris Aragiorgis
96c33a4523 log: Redirect stderr to logfile if deamonized
In case of daemonize, use the logfile passed with the -D option in
order to redirect stderr to it instead of /dev/null.

Also remove some unused code in log.h.

Signed-off-by: Dimitris Aragiorgis <dimara@arrikto.com>
Message-Id: <1455795518-19205-1-git-send-email-dimara@arrikto.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:29 +01:00
Peter Xu
d42a0d1484 dump-guest-memory: add qmp event DUMP_COMPLETED
One new QMP event DUMP_COMPLETED is added. When a dump finishes, one
DUMP_COMPLETED event will occur to notify the user.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by:   Fam Zheng <famz@redhat.com>
Message-Id: <1455772616-8668-12-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:29 +01:00
Peter Xu
4a6b52d67e Dump: add hmp command "info dump"
It will calculate percentage of finished work from completed and
total.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1455772616-8668-11-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:28 +01:00
Peter Xu
39ba2ea61f Dump: add qmp command "query-dump"
When dump-guest-memory is requested with detach flag, after its
return, user could query its status using "query-dump" command (with
no argument). The result contains:

- status: current dump status
- completed: bytes written in the latest dump
- total: bytes to write in the latest dump

From completed and total, we could know how much work
finished by calculating:

  100.0 * completed / total (%)

Reviewed-by:   Fam Zheng <famz@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1455772616-8668-10-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:28 +01:00
Peter Xu
2264c2c96e DumpState: adding total_size and written_size fields
Here, total_size is the size in bytes to be dumped (raw data, which
means before compression), while written_size are bytes handled (raw
size too).

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1455772616-8668-9-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:28 +01:00
Peter Xu
1fbeff72c2 dump-guest-memory: add "detach" support
If "detach" is provided, one thread is created to do the dump work,
while main thread will return immediately. For each GuestPhysBlock,
adding one more field "mr" to points to MemoryRegion that it
belongs, also ref the mr before use.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-Id: <1455772616-8668-8-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:28 +01:00
Peter Xu
63e27f28f2 dump-guest-memory: disable dump when in INMIGRATE state
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-Id: <1455772616-8668-7-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:28 +01:00
Peter Xu
ca1fc8c97e dump-guest-memory: introduce dump_process() helper function.
No functional change. Cleanup only.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-Id: <1455772616-8668-6-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:28 +01:00
Peter Xu
65d64f3623 dump-guest-memory: add dump_in_progress() helper function
For now, it has no effect. It will be used in dump detach support.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-Id: <1455772616-8668-5-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:28 +01:00
Peter Xu
baf28f57e2 dump-guest-memory: using static DumpState, add DumpStatus
Instead of malloc/free each time for DumpState, make it
static. Added DumpStatus to show status for dump.

This is to be used for detached dump.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-Id: <1455772616-8668-4-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:28 +01:00
Peter Xu
228de9cf1d dump-guest-memory: add "detach" flag for QMP/HMP interfaces.
This patch only adds the interfaces, but does not implement them.
"detach" parameter is made optional, to make sure that all the old
dump-guest-memory requests will still be able to work.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-Id: <1455772616-8668-3-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:28 +01:00
Peter Xu
e3517a5299 dump-guest-memory: cleanup: removing dump_{error|cleanup}().
It might be a little bit confusing and error prone to do
dump_cleanup() in these two functions. A better way is to do
dump_cleanup() before dump finish, no matter whether dump has
succeeded or not.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-Id: <1455772616-8668-2-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:28 +01:00
Fam Zheng
cf7ea1e60c scripts/kvm/kvm_stat: Fix missing right parantheses and ".format(...)"
They seem to have snuck in when applying Janosch Frank
<frankja@linux.vnet.ibm.com>'s previous patch.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1455848416-13177-1-git-send-email-famz@redhat.com>
Reviewed-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Tested-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:22 +01:00
Peter Maydell
a40db1b36b qemu-options.hx: Improve documentation of chardev multiplexing mode
The current documentation of chardev mux=on is rather brief and opaque;
expand it to hopefully be a bit more helpful.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1455643738-6068-1-git-send-email-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-19 18:27:56 +01:00
Peter Maydell
dd5e38b19d 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
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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>
2016-02-18 15:20:35 +00:00
xiaoqiang.zhao
5d83e348e7 hw/timer: QOM'ify pxa2xx_timer
* split the old SysBus init function into an instance_init
  and a Device realize function
* use DeviceClass::realize instead of SysBusDeviceClass::init

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:50:51 +00:00
xiaoqiang.zhao
81dcc49463 hw/timer: QOM'ify pl031
assign pl031_init to pl031_info.instance_init and drop the
SysBusDeviceClass::init

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:50:51 +00:00
xiaoqiang.zhao
c9d64639dd hw/timer: QOM'ify exynos4210_rtc
assign exynos4210_rtc_init to exynos4210_rtc_info.instance_init
and drop the SysBusDeviceClass::init

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:50:50 +00:00
xiaoqiang.zhao
ff6ee49511 hw/timer: QOM'ify exynos4210_pwm
assign exynos4210_pwm_init to exynos4210_pwm_info.instance_init
and drop the SysBusDeviceClass::init

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:50:50 +00:00
xiaoqiang.zhao
7a53a140f0 hw/timer: QOM'ify exynos4210_mct
assign exynos4210_mct_init to exynos4210_mct_info.instance_init
and drop the SysBusDeviceClass::init

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:50:50 +00:00
xiaoqiang.zhao
d712a5a2a4 hw/timer: QOM'ify arm_timer (pass 2)
assign DeviceClass::vmsd instead of using vmstate_register function

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:50:50 +00:00
xiaoqiang.zhao
0d175e745f hw/timer: QOM'ify arm_timer (pass 1)
* assign icp_pit_init to icp_pit_info.instance_init
* split the old SysBus init function into an instance_init
  and a Device realize function
* use DeviceClass::realize instead of SysBusDeviceClass::init

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:50:50 +00:00
Andrew Baumann
9800ad88c8 hw/sd: use guest error logging rather than fprintf to stderr
Some of these errors may be harmless (e.g. probing unimplemented
commands, or issuing CMD12 in the wrong state), and may also be quite
frequent. Spamming the standard error output isn't desirable in such
cases.

Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Message-id: 1454902521-21164-4-git-send-email-Andrew.Baumann@microsoft.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:50:50 +00:00
Andrew Baumann
dd26eb4333 hw/sd: model a power-up delay, as a workaround for an EDK2 bug
The SD spec for ACMD41 says that a zero argument is an "inquiry"
ACMD41, which does not start initialisation and is used only for
retrieving the OCR. However, Tianocore EDK2 (UEFI) has a bug [1]: it
first sends an inquiry (zero) ACMD41. If that first request returns an
OCR value with the power up bit (0x80000000) set, it assumes the card
is ready and continues, leaving the card in the wrong state. (My
assumption is that this works on hardware, because no real card is
immediately powered up upon reset.)

This change models a delay of 0.5ms from the first ACMD41 to the power
being up. However, it also immediately sets the power on upon seeing a
non-zero (non-enquiry) ACMD41. This speeds up UEFI boot, it should
also account for guests that simply delay after card reset and then
issue an ACMD41 that they expect will succeed.

[1] https://github.com/tianocore/edk2/blob/master/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c#L279
(This is the loop starting with "We need to wait for the MMC or SD
card is ready")

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Message-id: 1454902521-21164-3-git-send-email-Andrew.Baumann@microsoft.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:50:50 +00:00
Andrew Baumann
4481bbc79d hw/sd: implement CMD23 (SET_BLOCK_COUNT) for MMC compatibility
CMD23 is optional for SD but required for MMC, and the UEFI bootloader
used for Windows on Raspberry Pi 2 issues it.

Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Message-id: 1454902521-21164-2-git-send-email-Andrew.Baumann@microsoft.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:50:50 +00:00
Peter Maydell
6002915e0c hw/sd/pxa2xx_mmci: Add reset function
Add a reset function to the pxa2xx_mmci device; previously it had
no handling for system reset at all.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 1455646193-13238-11-git-send-email-peter.maydell@linaro.org
2016-02-18 14:50:50 +00:00
Peter Maydell
19d25e0a6d hw/sd/pxa2xx_mmci: Convert to VMStateDescription
Convert the pxa2xx_mmci device from manual save/load
functions to a VMStateDescription structure.

This is a migration compatibility break.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 1455646193-13238-10-git-send-email-peter.maydell@linaro.org
2016-02-18 14:49:55 +00:00
Peter Maydell
a9563e75e4 hw/sd/pxa2xx_mmci: Update to use new SDBus APIs
Now the PXA2xx MMCI device is QOMified itself, we can
update it to use the SDBus APIs to talk to the SD card.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1455646193-13238-9-git-send-email-peter.maydell@linaro.org
2016-02-18 14:49:21 +00:00
Peter Maydell
7a9468c925 hw/sd/pxa2xx_mmci: convert to SysBusDevice object
Convert the pxa2xx_mmci device to be a sysbus device.

In this commit we only change the device itself, and leave
the interface to the SD card using the old non-SDBus APIs.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 1455646193-13238-8-git-send-email-peter.maydell@linaro.org
2016-02-18 14:26:33 +00:00
Peter Maydell
eb4f566bbb sdhci_sysbus: Create SD card device in users, not the device itself
Move the creation of the SD card device from the sdhci_sysbus
device itself into the boards that create these devices.
This allows us to remove the cannot_instantiate_with_device_add
notation because we no longer call drive_get_next in the device
model.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 1455646193-13238-7-git-send-email-peter.maydell@linaro.org
2016-02-18 14:26:33 +00:00
Peter Maydell
40bbc19437 hw/sd/sdhci.c: Update to use SDBus APIs
Update the SDHCI code to use the new SDBus APIs.

This commit introduces the new command line options required
to connect a disk to sdhci-pci:

 -device sdhci-pci -drive id=mydrive,[...] -device sd,drive=mydrive

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 1455646193-13238-6-git-send-email-peter.maydell@linaro.org
2016-02-18 14:26:33 +00:00
Peter Maydell
c759a790b6 hw/sd: Add QOM bus which SD cards plug in to
Add a QOM bus for SD cards to plug in to.

Note that since sd_enable() is used only by one board and there
only as part of a broken implementation, we do not provide it in
the SDBus API (but instead add a warning comment about the old
function). Whoever converts OMAP and the nseries boards to QOM
will need to either implement the card switch properly or move
the enable hack into the OMAP MMC controller model.

In the SDBus API, the old-style use of sd_set_cb to register some
qemu_irqs for notification of card insertion and write-protect
toggling is replaced with methods in the SDBusClass which the
card calls on status changes and methods in the SDClass which
the controller can call to find out the current status. The
query methods will allow us to remove the abuse of the 'register
irqs' API by controllers in their reset methods to trigger
the card to tell them about the current status again.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 1455646193-13238-5-git-send-email-peter.maydell@linaro.org
2016-02-18 14:26:33 +00:00
Peter Maydell
ba3ed0fa94 hw/sd/sd.c: Convert sd_reset() function into Device reset method
Convert the sd_reset() function into a proper Device reset method.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 1455646193-13238-4-git-send-email-peter.maydell@linaro.org
2016-02-18 14:26:33 +00:00
Peter Maydell
260bc9d8aa hw/sd/sd.c: QOMify
Turn the SD card into a QOM device.
This conversion only changes the device itself; the various
functions which are effectively methods on the device are not
touched at this point.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 1455646193-13238-3-git-send-email-peter.maydell@linaro.org
2016-02-18 14:26:33 +00:00
Peter Maydell
ac6de31acd hw/sd/sdhci.c: Remove x-drive property
The following commits will remove support for the old sdhci-pci
command line syntax using the x-drive property:
 -device sdhci-pci,x-drive=mydrive -drive id=mydrive,[...]
and replace it with an explicit sd device:
 -device sdhci-pci -drive id=mydrive,[...] -device sd,drive=mydrive

(This is OK because x-drive is experimental.)

This commit removes the x-drive property so that old style
command lines will fail with a reasonable error message:
  -device sdhci-pci,x-drive=mydrive: Property '.x-drive' not found

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 1455646193-13238-2-git-send-email-peter.maydell@linaro.org
2016-02-18 14:26:33 +00:00
Wei Huang
c3a86b35f2 ARM: PL061: Cleaning field of PL061 device state
This patch removes the float_high field of PL061State, which doesn't
seem to be used anywhere. Because this changes the device state, the
version ID is also bumped up for the reason of compatiblity.

Signed-off-by: Wei Huang <wei@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1455729552-28026-3-git-send-email-wei@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:26:33 +00:00
Wei Huang
b527db44ad ARM: PL061: Clear PL061 device state after reset
Current QEMU doesn't clear PL061 state after reset. This causes a
weird issue with guest reboot via GPIO. Here is the device state
with two reboot requests:

  (PL061State fields)           data   old_in_data   istate
VM boot                         0      0             0
After 1st ACPI reboot request   8      8             8
After VM PL061 driver ACK       8      8             0
After VM reboot                 8      8             0
------------------------------------------------------------
2nd ACPI reboot request         8

In the second reboot request above, because the old_in_data field is 8,
QEMU decides that there is a pending edge IRQ already (see
pl061_update()) in input; so it doesn't raise up IRQ again. As a result
the second reboot request is lost. The correct way is to clear PL061
device state after reset.

The default reset state is found from the documents listed below. Per
Peter's suggestion that QEMU automatically calls reset function after
device initialization, this patch removes calling pl061_reset() from
pl061_initfn().

Reference:
[1] PL061 Technical Reference Manual
[2] Stellaris LM3S8962 Microcontroller Data Sheet
[3] Stellaris LM3S5P31 Microcontroller Data Sheet

Signed-off-by: Wei Huang <wei@redhat.com>
Message-id: 1455729552-28026-2-git-send-email-wei@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:26:33 +00:00
Alistair Francis
8a83ffc2da target-arm: Add PMUSERENR_EL0 register
The Linux kernel accesses this register early in its setup.

Signed-off-by: Christopher Covington <christopher.covington@linaro.org>
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: b30d536cb16ec57b4412172bb6dbc3f00d293e7d.1455060548.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:26:20 +00:00
Alistair Francis
978364f12a target-arm: Add the pmovsclr_el0 and pmintenclr_el1 registers
Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org>
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Tested-by: Nathan Rossi <nathan@nathanrossi.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 50deeafb24958a5b6d7f594b5dda399a022c0e5b.1455060548.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:16:17 +00:00
Alistair Francis
4054bfa9e7 target-arm: Add the pmceid0 and pmceid1 registers
Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org>
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Tested-by: Nathan Rossi <nathan@nathanrossi.com>
Message-id: da0563119a9f56fd5fbdc26e7ed19a8a8457c5b9.1455060548.git.alistair.francis@xilinx.com
[PMM: Use 0 for PMCEID0 values for A15 and A57 since our PMU
 does not currently implement any events.]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-02-18 14:16:17 +00:00
Peter Maydell
f01377f591 target-arm: UNDEF in the UNPREDICTABLE SRS-from-System case
Make get_r13_banked() raise an exception at runtime for the
corner case of SRS from System mode, so that we can UNDEF it;
this brings us in to line with the ARM ARM's set of permitted
CONSTRAINED UNPREDICTABLE choices.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2016-02-18 14:16:17 +00:00
Peter Maydell
d86d57d4fe target-arm: Combine user-only and softmmu get/set_r13_banked()
The user-mode versions of get/set_r13_banked() exist just to assert
if they're ever called -- the translate time code should never
emit calls to them because SRS from user mode always UNDEF.
There's no code in the softmmu versions that can't compile in
CONFIG_USER_ONLY, and the assertion is not particularly useful,
so combine the two functions rather than having completely split
versions under ifdefs.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com>
2016-02-18 14:16:16 +00:00
Peter Maydell
c766568d36 target-arm: Move bank_number() into internals.h
Move bank_number()'s implementation into internals.h, so
it's available in the user-mode-only compile as well.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com>
2016-02-18 14:16:16 +00:00
Peter Maydell
72309cee48 target-arm: Move get/set_r13_banked() to op_helper.c
Move get/set_r13_banked() from helper.c to op_helper.c. This will
let us add exception-raising code to them, and also puts them
in the same file as get/set_user_reg(), which makes some conceptual
sense.

(The original reason for the helper.c/op_helper.c split was that
only op_helper.c had access to the CPU env pointer; this distinction
has not been true for a long time, though, and so the split is
now rather arbitrary.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2016-02-18 14:16:16 +00:00
Peter Maydell
cbc0326b6f target-arm: Clean up trap/undef handling of SRS
The SRS instruction is:
 * UNDEFINED in Hyp mode
 * UNPREDICTABLE in User or System mode
 * UNPREDICTABLE if the specified mode isn't accessible
 * trapped to EL3 if EL3 is AArch64 and we are at Secure EL1

Clean up the code to handle all these cases cleanly, including
picking UNDEF as our choice of UNPREDICTABLE behaviour rather
blindly trusting the mode field passed in the instruction.
As part of this, move the check for IS_USER into gen_srs()
itself rather than having it done by the caller.

The exception is that we don't UNDEF for calls from System
mode, which need a runtime check. This will be dealt with in
the following commits.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2016-02-18 14:16:16 +00:00
Peter Maydell
f2cae60927 target-arm: Report correct syndrome for FPEXC32_EL2 traps
If access to FPEXC32_EL2 is trapped by CPTR_EL2.TFP or CPTR_EL3.TFP,
this should be reported with a syndrome register indicating an
FP access trap, not one indicating a system register access trap.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com>
2016-02-18 14:16:16 +00:00