uint8_t has existed since ..... all this century?
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-id: 20170425223739.6703-6-quintela@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
So, remove the ifdefs.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-id: 20170425223739.6703-5-quintela@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
It was never compiled in.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-id: 20170425223739.6703-4-quintela@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Include file has never been on qemu and it has been undefined from the very beginning.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-id: 20170425223739.6703-3-quintela@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Notice that the code was supposed to be in the file ymf262.h, that has
never been on qemu source tree.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-id: 20170425223739.6703-2-quintela@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The exit callback always return 0, convert it to void
Signed-off-by: Zihan Yang <tgnyang@gmail.com>
Message-id: 1493211188-24086-5-git-send-email-tgnyang@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The exit callback of DeviceClass will be removed in the future, so
convert to unrealize in the init functioin
Signed-off-by: Zihan Yang <tgnyang@gmail.com>
Message-id: 1493211188-24086-4-git-send-email-tgnyang@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This converts the remaining components, except for the top level
loop, to VMState.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Working up the stack, this replaces the slirp_socket_load/save
with VMState definitions.
A place holder for IPv6 support is added as a comment; it needs
testing once the rest of the IPv6 code is there.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
The socket structure has a pair of unions for lhost and fhost
addresses; the unions are identical so split them out into
a separate union declaration.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Convert the sbuf structure to a VMStateDescription.
Note this uses the VMSTATE_WITH_TMP mechanism to calculate
and reload the offsets based on the pointers.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Convert the migration of the struct tcpcb to use a VMStateDescription,
the rest of it will come later.
Mostly mechanical, except for conversion of some 'char' to uint8_t
to ensure portability.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
ASAN detects an "unknown-crash" when running pxe-test:
/ppc64/pxe/spapr-vlan: =================================================================
==7143==ERROR: AddressSanitizer: unknown-crash on address 0x7f6dcd298d30 at pc 0x55e22218830d bp 0x7f6dcd2989e0 sp 0x7f6dcd2989d0
READ of size 128 at 0x7f6dcd298d30 thread T2
#0 0x55e22218830c in tftp_session_allocate /home/elmarco/src/qq/slirp/tftp.c:73
#1 0x55e22218a1f8 in tftp_handle_rrq /home/elmarco/src/qq/slirp/tftp.c:289
#2 0x55e22218b54c in tftp_input /home/elmarco/src/qq/slirp/tftp.c:446
#3 0x55e2221833fe in udp6_input /home/elmarco/src/qq/slirp/udp6.c:82
#4 0x55e222137b17 in ip6_input /home/elmarco/src/qq/slirp/ip6_input.c:67
Address 0x7f6dcd298d30 is located in stack of thread T2 at offset 96 in frame
#0 0x55e222182420 in udp6_input /home/elmarco/src/qq/slirp/udp6.c:13
This frame has 3 object(s):
[32, 48) '<unknown>'
[96, 124) 'lhost' <== Memory access at offset 96 partially overflows this variable
[160, 200) 'save_ip' <== Memory access at offset 96 partially underflows this variable
The sockaddr_storage pointer is the sockaddr_in6 lhost on the
stack. Copy only the source addr size.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
gcc 7 (on fedora 26) objects to many of the snprintf's
in the smb path and command creation because it can't
figure out that the smb_dir (i.e. the /tmp dir for the configuration)
is known to be short.
Replace all these fixed length buffers by g_str* functions that dynamically
allocate and use g_dir_make_tmp to make the directory.
(It's fairly new glib but we have a compat function for it).
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
The OS will allocate automatically a free port. This is useful if you
want to be sure to not get any port conflict. You still have to figure
out which port you got, for example with "lsof" (this could be exposed
in the monitor if needed).
Example of use:
$ qemu-system-x86_64 -net user,hostfwd=127.0.0.1:0-:22 ...
Then, get your port with:
$ lsof -np 1474 | grep LISTEN
qemu-syst 31777 bernat 12u IPv4 [...] TCP 127.0.0.1:35145 (LISTEN)
Signed-off-by: Vincent Bernat <vincent@bernat.im>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Since commit "c53eeaf75a04 configure: eliminate Python dependency for
--help", configure --help fails to produce the list of available trace
backends if invoked out-of-tree. It also spits the following error:
grep: scripts/tracetool/backend/*.py: No such file or directory
This patch simply adds the missing $source_path to fix it.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-id: 149321376763.7874.12797658801011614451.stgit@bahia
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* new commands: guest-get-timezone, guest-get-users, guest-get-host-name
* fix hang on w32 when stopping qemu-ga service while fs frozen
* fix missing setting of can-offline in guest-get-vcpus
* make qemu-ga VSS w32 service on-demand rather than on-startup
* fix unecessary errors to EventLog on w32
* improvements to fsfreeze documentation
v2:
* document 'zone' field of guest-get-timezone as informational-only
(Daniel, Eric)
* fix build error for glib < 2.32 (Peter)
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Merge remote-tracking branch 'mdroth/tags/qga-pull-2017-04-25-v2-tag' into staging
qemu-ga patch queue
* new commands: guest-get-timezone, guest-get-users, guest-get-host-name
* fix hang on w32 when stopping qemu-ga service while fs frozen
* fix missing setting of can-offline in guest-get-vcpus
* make qemu-ga VSS w32 service on-demand rather than on-startup
* fix unecessary errors to EventLog on w32
* improvements to fsfreeze documentation
v2:
* document 'zone' field of guest-get-timezone as informational-only
(Daniel, Eric)
* fix build error for glib < 2.32 (Peter)
# gpg: Signature made Thu 27 Apr 2017 06:43:42 AM BST
# gpg: using RSA key 0x3353C9CEF108B584
# gpg: Good signature from "Michael Roth <flukshun@gmail.com>"
# gpg: aka "Michael Roth <mdroth@utexas.edu>"
# gpg: aka "Michael Roth <mdroth@linux.vnet.ibm.com>"
# Primary key fingerprint: CEAC C9E1 5534 EBAB B82D 3FA0 3353 C9CE F108 B584
* mdroth/tags/qga-pull-2017-04-25-v2-tag:
qga: Add `guest-get-timezone` command
qga: Add 'guest-get-users' command
qga: improve fsfreeze documentations
qga: Add 'guest-get-host-name' command
qga-win: Fix Event Viewer errors caused by qemu-ga
qga-win: Fix a bug where qemu-ga service is stuck during stop operation
qga-win: Enable 'can-offline' field in 'guest-get-vcpus' reply
qemu-ga: Make QGA VSS provider service run only when needed
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Adds a new command `guest-get-timezone` reporting the currently
configured timezone on the system. The information on what timezone is
currently is configured is useful in case of Windows VMs where the
offset of the hardware clock is required to have the same offset. This
can be used for management systems like `oVirt` to detect the timezone
difference and warn administrators of the misconfiguration.
Signed-off-by: Vinzenz Feenstra <vfeenstr@redhat.com>
Reviewed-by: Sameeh Jubran <sameeh@daynix.com>
Tested-by: Sameeh Jubran <sameeh@daynix.com>
* moved stub implementation to end of function for consistency
* document that timezone names are for informational use only.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
A command that will list all currently logged in users, and the time
since when they are logged in.
Examples:
virsh # qemu-agent-command F25 '{ "execute": "guest-get-users" }'
{"return":[{"login-time":1490622289.903835,"user":"root"}]}
virsh # qemu-agent-command Win2k12r2 '{ "execute": "guest-get-users" }'
{"return":[{"login-time":1490351044.670552,"domain":"LADIDA",
"user":"Administrator"}]}
Signed-off-by: Vinzenz Feenstra <vfeenstr@redhat.com>
* make g_hash_table_contains compat func inline to avoid
unused warnings
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Some users find the fsfreeze behaviour confusing. Add some notes about
invalid mount points and Windows usage.
Related to:
https://bugzilla.redhat.com/show_bug.cgi?id=1436976
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Vinzenz Feenstra <vfeenstr@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Retrieving the guest host name is a very useful feature for virtual management
systems. This information can help to have more user friendly VM access
details, instead of an IP there would be the host name. Also the host name
reported can be used to have automated checks for valid SSL certificates.
virsh # qemu-agent-command F25 '{ "execute": "guest-get-host-name" }'
{"return":{"host-name":"F25.lab.evilissimo.net"}}
Signed-off-by: Vinzenz Feenstra <vfeenstr@redhat.com>
* minor whitespace fix-ups
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
When the command "guest-fsfreeze-freeze" is executed it causes
the VSS service to log the error below in the Event Viewer. This
error is caused by an issue in the function "CommitSnapshots" in
provider.cpp:
* When VSS_TIMEOUT_MSEC expires the funtion returns E_ABORT. This causes
the error #12293.
|event id| error |
* 12293 : Volume Shadow Copy Service error: Error calling a routine on a
Shadow Copy Provider {00000000-0000-0000-0000-000000000000}.
Routine details CommitSnapshots [hr = 0x80004004, Operation
aborted.
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
After triggering a freeze command without any following thaw command,
qemu-ga will not respond to stop operation. This behaviour is wanted on Linux
as there is no time limit for a freeze command and we want to prevent
quitting in the middle of freeze, on the other hand on Windows the time
limit for freeze is 10 seconds, so we should wait for the timeout, thaw
the file system and quit.
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
The QGA schema states:
@can-offline: Whether offlining the VCPU is possible. This member
is always filled in by the guest agent when the structure
is returned, and always ignored on input (hence it can be
omitted then).
Currently 'can-offline' is missing entirely from the reply. This causes
errors in libvirt which is expecting the reply to be compliant with the
schema docs.
BZ#1438735: https://bugzilla.redhat.com/show_bug.cgi?id=1438735
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Currently the service runs in background on boot even though it is not
needed and once it is running it never stops. The service needs to be
running only during freeze operation and it should be stopped after
executing thaw.
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Users of tcg_gen_atomic_cmpxchg and do_atomic_op rightfully utilize
the output. Even though this code is dead, it gets translated, and
without the initialization we encounter a tcg_error.
Reported-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Tested-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Tested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This reverts commit 0fc8aec7de.
In commit 2dfe5113b1 we split a trace event with a lot of arguments
in two, because the UST trace backend has a limit on the number
of arguments you can have in a single trace event. Unfortunately
we subsequently forgot about this, and in commit 0fc8aec7de
we merged the two trace events again, recreating the "UST backend
doesn't build" bug.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/dgilbert/tags/pull-hmp-20170426' into staging
HMP pull, with tcg fix
# gpg: Signature made Wed 26 Apr 2017 14:55:30 BST
# gpg: using RSA key 0x0516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A 9FA9 0516 331E BC5B FDE7
* remotes/dgilbert/tags/pull-hmp-20170426:
tests: Add a tester for HMP commands
libqtest: Add a generic function to run a callback function for every machine
libqtest: Ignore QMP events when parsing the response for HMP commands
monitor: Check whether TCG is enabled before running the "info jit" code
hmp: gpa2hva and gpa2hpa hostaddr command
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
HMP commands do not get any automatic testing yet, so on certain
QEMU machines, some HMP commands were causing crashes in the past.
Thus we should test HMP commands in our test suite, too, to avoid
that such problems creep in again in the future.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1493097407-20482-1-git-send-email-thuth@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Some tests need to run single tests for every available machine of the
current QEMU binary. To avoid code duplication, let's extract this
code that deals with 'query-machines' into a separate function.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1490860207-8302-3-git-send-email-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
When running certain HMP commands (like "device_del") via QMP, we
can sometimes get a QMP event in the response first, so that the
"g_assert(ret)" statement in qtest_hmp() triggers and the test
fails. Fix this by ignoring such QMP events while looking for the
real return value from QMP.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1490860207-8302-2-git-send-email-thuth@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Added note to qtest_hmp/qtest_hmpv's header description to say
it discards events
The "info jit" command currently aborts on Mac OS X with the message
"qemu_mutex_lock: Invalid argument" when running with "-M accel=qtest".
We should only call into the TCG code here if TCG has really been
enabled and initialized.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1493179907-22516-1-git-send-email-thuth@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Tested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
These commands are useful when testing machine-check passthrough.
gpa2hva is useful to inject a MADV_HWPOISON madvise from gdb, while
gpa2hpa is useful to inject an error with the mce-inject kernel
module.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1490021158-4469-1-git-send-email-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20170420133058.12911-1-pbonzini@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Here's a respind of my first pull request for qemu-2.10, consisting of
assorted patches which have accumulated while qemu-2.9 stabilized.
Highlights are:
* Rework / cleanup of the XICS interrupt controller
* Substantial improvement to the 'powernv' machine type
- Includes an MMIO XICS version
* POWER9 support improvements
- POWER9 guests with KVM
- Partial support for POWER9 guests with TCG
* IOMMU and VFIO improvements
* Assorted minor changes
There are several IPMI patches here that aren't usually in my area of
maintenance, but there isn't a regular maintainer and these patches
are for the benefit of the powernv machine type.
This pull request supersedes my 2017-04-26 pull request. This new set
fixes a bug in one of the aforementioned IPMI patches which caused
clang sanitizer failures (and may have crashed on some libc / host
versions).
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.10-20170426' into staging
ppc patch queue 2017-04-26
Here's a respind of my first pull request for qemu-2.10, consisting of
assorted patches which have accumulated while qemu-2.9 stabilized.
Highlights are:
* Rework / cleanup of the XICS interrupt controller
* Substantial improvement to the 'powernv' machine type
- Includes an MMIO XICS version
* POWER9 support improvements
- POWER9 guests with KVM
- Partial support for POWER9 guests with TCG
* IOMMU and VFIO improvements
* Assorted minor changes
There are several IPMI patches here that aren't usually in my area of
maintenance, but there isn't a regular maintainer and these patches
are for the benefit of the powernv machine type.
This pull request supersedes my 2017-04-26 pull request. This new set
fixes a bug in one of the aforementioned IPMI patches which caused
clang sanitizer failures (and may have crashed on some libc / host
versions).
# gpg: Signature made Wed 26 Apr 2017 07:58:10 BST
# gpg: using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-2.10-20170426: (48 commits)
MAINTAINERS: Remove myself from e500
target/ppc: Style fixes
e500,book3s: mfspr 259: Register mapped/aliased SPRG3 user read
target/ppc: Flush TLB on write to PIDR
spapr-cpu-core: Release ICPState object during CPU unrealization
ppc/pnv: generate an OEM SEL event on shutdown
ppc/pnv: add initial IPMI sensors for the BMC simulator
ppc/pnv: populate device tree for IPMI BT devices
ppc/pnv: populate device tree for serial devices
ppc/pnv: populate device tree for RTC devices
ppc/pnv: scan ISA bus to populate device tree
ppc/pnv: enable only one LPC bus
ppc/pnv: Add support for POWER8+ LPC Controller
spapr: remove the 'nr_servers' field from the machine
target/ppc: Fix size of struct PPCElfPrstatus
ipmi: introduce an ipmi_bmc_gen_event() API
ipmi: introduce an ipmi_bmc_sdr_find() API
ipmi: provide support for FRUs
ipmi: use a file to load SDRs
ppc: add IPMI support
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/sstabellini/tags/xen-20170421-v2-tag' into staging
Xen 2017/04/21 + fix
# gpg: Signature made Tue 25 Apr 2017 19:10:37 BST
# gpg: using RSA key 0x894F8F4870E1AE90
# gpg: Good signature from "Stefano Stabellini <stefano.stabellini@eu.citrix.com>"
# gpg: aka "Stefano Stabellini <sstabellini@kernel.org>"
# Primary key fingerprint: D04E 33AB A51F 67BA 07D3 0AEA 894F 8F48 70E1 AE90
* remotes/sstabellini/tags/xen-20170421-v2-tag: (21 commits)
move xen-mapcache.c to hw/i386/xen/
move xen-hvm.c to hw/i386/xen/
move xen-common.c to hw/xen/
add xen-9p-backend to MAINTAINERS under Xen
xen/9pfs: build and register Xen 9pfs backend
xen/9pfs: send responses back to the frontend
xen/9pfs: implement in/out_iov_from_pdu and vmarshal/vunmarshal
xen/9pfs: receive requests from the frontend
xen/9pfs: connect to the frontend
xen/9pfs: introduce Xen 9pfs backend
9p: introduce a type for the 9p header
xen: import ring.h from xen
configure: use pkg-config for obtaining xen version
xen: additionally restrict xenforeignmemory operations
xen: use libxendevice model to restrict operations
xen: use 5 digit xen versions
xen: use libxendevicemodel when available
configure: detect presence of libxendevicemodel
xen: create wrappers for all other uses of xc_hvm_XXX() functions
xen: rename xen_modified_memory() to xen_hvm_modified_memory()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
I recently left Freescale/NXP, and even before that it'd been a few years
since I was actively involved in KVM/QEMU work.
Signed-off-by: Scott Wood <oss@buserror.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This makes a small step fixing one of many style problems that exist in
the older ppc code. This removes spaces between function (or macro) name
and the following '('.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This patch registers mfspr 259 for Book3S and e500 family cores
following this research:
mfspr 259 provides read-only mapped user access to SPRG3(SPR 275) according to:
- PowerISA 2.02, Book III (documents implementation starting with POWER4+ @ p20)
- IBM PowerPC 970MP RISC Microprocessor User's Manual v2.1, page 48
- Amit Singh: "Mac OS X Internals: A Systems Approach" on 970 and 970FX cores:
He demonstrates mfspr 259 reading TLS data from Mac OS X on G5 on page 588
- NXP documents it in the Core Reference Manuals of: e500, e500mc and e5500
- getcpu() of the 32 & 64-bit Book3S Linux vDSOs use it to read the core number
mfspr 259 does not appear to be implemented in these cores according to:
- 74xx series: MPC7410/MPC7400 and MPC7450 RISC Microprocessor Reference Manuals
- 4xx series: PPC440 Processor User's Manual, Revision 1.09 by AMCC
- 750 series: IBM PowerPC 750CL RISC Microprocessor User's Manual
- e200 series: e200z4 Power Architectureâ Core Reference Manual
Implementation: gen_spr_usprg3() is called from init_proc_book3s_common()
(covers the 970 and POWER cores) and init_proc_e500() (covers the e500 family)
to register spr_read_ureg() in the same way which it already provides
the mapped SPR access for SPR_USPRG4-7 in gen_spr_usprgh() for cores
which have the same read-only mapped SPRG register access for SPRG4-7.
Verified using Linux by pinning a thread to a core and checking sched_getcpu()
using qemu-system-ppc64 -M pseries -cpu POWER8 using MTTCG on a x86_64 host.
Signed-off-by: Bernhard Kaindl <bernhard.kaindl@thalesgroup.com>
Reviewed-by: Stefan Resch <stefan.resch@thalesgroup.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The PIDR (process id register) is used to store the id of the currently
running process, which is used to select the process table entry used to
perform address translation. This means that when we write to this register
all the translations in the TLB become outdated as they are for a
previously running process. Thus when this register is written to we need
to invalidate the TLB entries to ensure stale entries aren't used to
to perform translation for the new process, which would result in at best
segfaults or alternatively just random memory being accessed.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[dwg: Fixed compile error for 32-bit targets]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
