It will be useful for checking when we change traditional
boot order dynamically and propagate error message
to the monitor.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
It will be useful for checking when we change traditional
boot order dynamically and propagate error message
to the monitor.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
First, we can downsize vl.c, make it simpler by
little and little. Second, I can maintain those code
and make some improvement.
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
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Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into staging
# gpg: Signature made Fri 19 Dec 2014 13:18:18 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/net-pull-request:
e1000: defer packets until BM enabled
net: Use g_new() & friends where that makes obvious sense
net: Fuse g_malloc(); memset() into g_new0()
net: don't use set/get_pointer() in set/get_netdev()
tap: fix vcpu long time io blocking on tap
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In QEMU 2.2 the exception_index value was added to the migration stream
through a subsection. The default was set to 0, which is wrong and
should have been -1.
However, 2.2 does not have commit e511b4d (cpu-exec: reset exception_index
correctly, 2014-11-26), hence in 2.2 the exception_index is never used
and is set to -1 on the next call to cpu_exec. So we can change the
migration stream to make the default -1. The effects are:
- 2.2.1 -> 2.2.0: cpu->exception_index set incorrectly to 0 if it
were -1 on the source; then reset to -1 in cpu_exec. This is TCG
only; KVM does not use exception_index.
- 2.2.0 -> 2.2.1: cpu->exception_index set incorrectly to -1 if it
were 0 on the source; but it would be reset to -1 in cpu_exec anyway.
This is TCG only; KVM does not use exception_index.
- 2.2.1 -> 2.1: two bugs fixed: 1) can migrate backwards if
cpu->exception_index is set to -1; 2) should not migrate backwards
(but 2.2.0 allows it) if cpu->exception_index is set to 0
- 2.2.0 -> 2.3.0: 2.2.0 will send the subsection unnecessarily if
exception_index is -1, but that is not a problem. 2.3.0 will set
cpu->exception_index to -1 if it is 0 on the source, but this would
be anyway a problem for 2.2.0 -> 2.2.x migration (due to lack of
commit e511b4d in 2.2.x) so we can ignore it
- 2.2.1 -> 2.3.0: everything works.
In addition, play it safe and never send the subsection unless TCG
is in use. KVM does not use exception_index (PPC KVM stores values
in it for use in the subsequent call to ppc_cpu_do_interrupt, but
does not need it as soon as kvm_handle_debug returns). Xen and
qtest do not run any code for the CPU at all.
Reported-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Tested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1418989994-17244-3-git-send-email-pbonzini@redhat.com
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Some guests seem to set BM for e1000 after
enabling RX.
If packets arrive in the window, device is wedged.
Probably works by luck on real hardware, work around
this by making can_receive depend on BM.
Tested-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
g_new(T, n) is neater than g_malloc(sizeof(T) * n). It's also safer,
for two reasons. One, it catches multiplication overflowing size_t.
Two, it returns T * rather than void *, which lets the compiler catch
more type errors.
This commit only touches allocations with size arguments of the form
sizeof(T).
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Commit 1ceef9f273 (net: multiqueue
support) tries to use set_pointer() and get_pointer() to set and get
NICPeers which is not a pointer defined in DEFINE_PROP_NETDEV. This
trick works but result a unclean and fragile implementation (e.g
print_netdev and parse_netdev).
This patch solves this issue by not using set/get_pinter() and set and
get netdev directly in set_netdev() and get_netdev(). After this the
parse_netdev() and print_netdev() were no longer used and dropped from
the source.
[Renamed 'err' label to 'out' as suggested by Markus Armbruster.
--Stefan]
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
set secondary-vga category.
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-vga-20141216-1' into staging
cirrus hwcursor fixes.
set secondary-vga category.
# gpg: Signature made Tue 16 Dec 2014 14:44:09 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-vga-20141216-1:
vga: set catagory bit for secondary vga device
move hw cursor pos from cirrus to vga
cirrus: Force use of shadow pixmap when HW cursor is enabled
vga: Add mechanism to force the use of a shadow surface
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/lalrae/tags/mips-20141216: (30 commits)
target-mips: remove excp_names[] from linux-user as it is unused
disas/mips: disable unused mips16_to_32_reg_map[]
disas/mips: remove unused mips_msa_control_names_numeric[32]
target-mips: convert single case switch into if statement
target-mips: Fix DisasContext's ulri member initialization
target-mips: Use local float status pointer across MSA macros
target-mips: Add missing calls to synchronise SoftFloat status
linux-user: Use the 5KEf processor for 64-bit emulation
target-mips: Also apply the CP0.Status mask to MTTC0
target-mips: gdbstub: Clean up FPU register handling
target-mips: Correct 32-bit address space wrapping
target-mips: Tighten ISA level checks
target-mips: Fix CP0.Config3.ISAOnExc write accesses
target-mips: Output CP0.Config2-5 in the register dump
target-mips: Fix the 64-bit case for microMIPS MOVE16 and MOVEP
target-mips: Correct the writes to Status and Cause registers via gdbstub
target-mips: Correct the handling of writes to CP0.Status for MIPSr6
target-mips: Correct MIPS16/microMIPS branch size calculation
target-mips: Restore the order of helpers
target-mips: Remove unused `FLOAT_OP' macro
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Anton D. Kachalov (1):
[intel] Add 8086:1557 card (Intel 82599 10G ethernet mezz)
Christian Hesse (1):
[build] Merge util/geniso and util/genliso
Curtis Larsen (3):
[efi] Use EFI_CONSOLE_CONTROL_PROTOCOL to set text mode if available
[efi] Report errors from attempting to disconnect existing drivers
[efi] Try various possible SNP receive filters
Dale Hamel (1):
[smbios] Expose board serial number as ${board-serial}
Florian Schmaus (1):
[build] Set GITVERSION only if there is a git repository
Hannes Reinecke (3):
[ethernet] Provide eth_random_addr() to generate random Ethernet addresses
[igbvf] Assign random MAC address if none is set
[igbvf] Allow changing of MAC address
Jan Kiszka (1):
[intel] Add I217-LM PCI ID
Marin Hannache (4):
[nfs] Fix an invalid free() when loading a symlink
[nfs] Fix an invalid free() when loading a regular (non-symlink) file
[nfs] Rewrite NFS URI handling
[readline] Add CTRL-W shortcut to remove a word
Michael Brown (144):
[profile] Allow interrupts to be excluded from profiling results
[intel] Exclude time spent in hypervisor from profiling
[build] Fix version.o dependency upon git index
[tcp] Defer sending ACKs until all received packets have been processed
[lkrnprefix] Function as a bzImage kernel
[build] Avoid errors when build directory is mounted via NFS
[undi] Apply quota only to number of complete received packets
[lkrnprefix] Make real-mode setup code relocatable
[intel] Increase receive ring fill level
[syslog] Strip invalid characters from hostname
[test] Add self-tests for strdup()
[libc] Prevent strndup() from reading beyond the end of the string
[efi] Allow for optional protocols
[efi] Make EFI_DEVICE_PATH_TO_TEXT_PROTOCOL optional
[efi] Make EFI_HII_DATABASE_PROTOCOL optional
[efi] Do not try to fetch loaded image device path protocol
[ipv6] Fix definition of IN6_IS_ADDR_LINKLOCAL()
[dhcpv6] Do not set sin6_scope_id on the unspecified client socket address
[ipv6] Do not set sin6_scope_id on source address
[ipv6] Include network device when transcribing multicast addresses
[ipv6] Avoid potentially copying from a NULL pointer in ipv6_tx()
[librm] Allow for the PIC interrupt vector offset to be changed
[ifmgmt] Do not sleep CPU while configuring network devices
[scsi] Improve sense code parsing
[iscsi] Read IPv4 settings only from the relevant network device
[iscsi] Include IP address origin in iBFT
[debug] Allow debug message colours to be customised via DBGCOL=...
[build] Expose build timestamp, build name, and product names
[efi] Allow device paths to be easily included in debug messages
[efi] Provide a meaningful EFI SNP device name
[efi] Restructure EFI driver model
[build] Fix erroneous object name in version object
[build] Add yet another potential location for isolinux.bin
[efi] Allow network devices to be created on top of arbitrary SNP devices
[autoboot] Allow autoboot device to be identified by link-layer address
[efi] Identify autoboot device by MAC address when chainloading
[efi] Attempt to start only drivers claiming support for a device
[efi] Rewrite SNP NIC driver
[efi] Include SNP NIC driver within the all-drivers target
[crypto] Add support for iPAddress subject alternative names
[crypto] Fix debug message
[netdevice] Reset network device index when last device is unregistered
[efi] Update EDK2 headers
[efi] Install our own disk I/O protocol and claim exclusive use of it
[efi] Allow for interception of boot services calls by loaded image
[efi] Print well-known GUIDs by name in debug messages
[efi] Include EFI_CONSOLE_CONTROL_PROTOCOL header
[ioapi] Fail ioremap() when attempting to map a zero bus address
[intel] Check for ioremap() failures
[realtek] Check for ioremap() failures
[vmxnet3] Check for ioremap() failures
[skel] Check for ioremap() failures
[myson] Check for ioremap() failures
[natsemi] Check for ioremap() failures
[i386] Add functions to read and write model-specific registers
[x86_64] Add functions to read and write model-specific registers
[efi] Show more diagnostic information when building with DEBUG=efi_wrap
[ioapi] Centralise notion of PAGE_SIZE
[lotest] Discard packets arriving on the incorrect network device
[xen] Import selected public headers
[xen] Add basic support for PV-HVM domains
[xen] Add support for Xen netfront virtual NICs
[efi] Default to releasing network devices for use via SNP
[efi] Unload started images only on failure
[efi] Fill in loaded image's DeviceHandle if firmware fails to do so
[efi] Fix incorrect debug message level when device has no device path
[efi] Report exact failure when unable to open the device path
[netdevice] Avoid registering duplicate network devices
[efi] Ignore failures when attempting to install SNP HII protocol
[efi] Expand the range of well-known EFI GUIDs in debug messages
[efi] Provide efi_handle_name() for debugging
[efi] Add ability to dump all openers of a given protocol on a handle
[efi] Use efi_handle_name() instead of efi_handle_devpath_text()
[efi] Use efi_handle_name() instead of efi_devpath_text() where applicable
[efi] Allow compiler to perform type checks on EFI_HANDLE
[efi] Avoid unnecessarily passing pointers to EFI_HANDLEs
[efi] Dump existing openers when we are unable to open a protocol
[efi] Dump handle information around connect/disconnect attempts
[efi] Improve debugging of the debugging facilities
[efi] Add excessive sanity checks into efi_debug functions
[efi] Also try original ComponentName protocol for retrieving driver names
[efi] Print raw device path when we have no DevicePathToTextProtocol
[efi] Add ability to dump SNP device mode information
[efi] Reset multicast filter list when setting SNP receive filters
[efi] Provide centralised definitions of commonly-used GUIDs
[efi] Open device path protocol only at point of use
[efi] Move abstract device path and handle functions to efi_utils.c
[efi] Generalise snpnet_pci_info() to efi_locate_device()
[bios] Support displaying and hiding cursor
[efi] Support displaying and hiding cursor
[readline] Ensure cursor is visible when prompting for input
[xen] Accept alternative Xen platform PCI device ID 5853:0002
[xen] Use version 1 grant tables by default
[xen] Cope with unexpected initial backend states
[smc9000] Avoid using CONFIG as a preprocessor macro
[build] Allow for named configurations at build time
[intel] Display PBS value when applying ICH errata workaround
[intel] Display before and after values for both PBS and PBA
[intel] Apply PBS/PBA errata workaround only to ICH8 PCI device IDs
[efi] Add definitions of GUIDs observed during Windows boot
[efi] Dump details of any calls to our dummy block and disk I/O protocols
[romprefix] Do not preserve unused register %di
[build] Remove obsolete references to .zrom build targets
[build] Allow ISA ROMs to be built
[build] Avoid deleting config header files if build is interrupted
[prefix] Halt system without burning CPU if we cannot access the payload
[prefix] Report both %esi and %ecx when opening payload fails
[util] Use PCI length field to obtain length of individual images
[mromprefix] Use PCI length field to obtain length of individual images
[mromprefix] Allow for .mrom images larger than 128kB
[efi] Show details of intercepted LoadImage() calls
[efi] Make our virtual file system case insensitive
[efi] Wrap any images loaded by our wrapped image
[efi] Use the SNP protocol instance to match the SNP chainloading device
[efi] Avoid returning uninitialised data from PCI configuration space reads
[efi] Make EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL optional
[efi] Allow for non-PCI snpnet devices
[build] Clean up all binary directories on "make [very]clean"
[efi] Add efifatbin utility
[efi] Provide dummy device path in efi_image_probe()
[dhcp] Check for matching chaddr in received DHCP packets
[dhcp] Remove obsolete dhcp_chaddr() function
[build] Use -malign-double to build 32-bit UEFI binaries
[efi] Centralise definitions of more protocol GUIDs
[efi] Add definitions of GUIDs observed when chainloading from Intel driver
[efi] Free transmit ring entry before calling netdev_tx_complete()
[efi] Generalise snpnet_dev_info() to efi_device_info()
[efi] Update to current EDK2 headers
[efi] Add NII / UNDI driver
[efi] Check for presence of UNDI in NII protocol
[efi] Include NII driver within "snp" and "snponly" build targets
[ping] Report timed-out pings via the callback function
[ping] Allow termination after a specified number of packets
[ping] Allow "ping" command output to be inhibited
[intel] Use autoloaded MAC address instead of EEPROM MAC address
[crypto] Fix parsing of OCSP responder ID key hash
[vmxnet3] Add profiling code to exclude time spent in the hypervisor
[netdevice] Fix erroneous use of free(iobuf) instead of free_iob(iobuf)
[libc] Add ASSERTED macro to test if any assertion has triggered
[list] Add sanity checks after list-adding functions
[malloc] Tidy up debug output
[malloc] Sanity check parameters to alloc_memblock() and free_memblock()
[malloc] Check integrity of free list
[malloc] Report caller address as soon as memory corruption is detected
Peter Lemenkov (1):
[build] Check if git index actually exists
Robin Smidsrød (2):
[build] Add named configuration for VirtualBox
[build] Avoid using embedded script in VirtualBox named configuration
Sven Ulland (1):
[lacp] Set "aggregatable" flag in response LACPDU
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Don't generate TCG operations when privilege, register window or
coprocessor checks fail.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Record last valid 4-register window pane number in TB flags so that a
window overflow exception throw point is known at the translation time.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
If TB ends with an opcode that crosses page boundary and the following
page is not executable then EPC1 for the code fetch exception wrongly
points at the beginning of the TB. Always treat instruction that crosses
page boundary as a separate TB.
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Currently 'info jit' outputs half of the information to monitor and the
rest to qemu log. Dumping opcode counts to monitor as a part of 'info
jit' command doesn't sound useful. Add new monitor command 'info
opcount' that only dumps opcode counters.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Running barebox on qemu-system-mips* with '-d unimp' overloads
stderr by very very many mips_cpu_handle_mmu_fault() messages:
mips_cpu_handle_mmu_fault address=b80003fd ret 0 physical 00000000180003fd prot 3
mips_cpu_handle_mmu_fault address=a0800884 ret 0 physical 0000000000800884 prot 3
mips_cpu_handle_mmu_fault pc a080cd80 ad b80003fd rw 0 mmu_idx 0
So it's very difficult to find LOG_UNIMP message.
The mips_cpu_handle_mmu_fault() messages appear on enabling ANY
logging! It's not very handy.
Adding separate log category for *_cpu_handle_mmu_fault()
logging fixes the problem.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Acked-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 1418489298-1184-1-git-send-email-antonynpavlov@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
directory, and updating MAINTAINERS.
I've also folded my other MAINTAINERS update patches into this, as
they're small by themselves.
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Merge remote-tracking branch 'remotes/amit-migration/tags/for-2.3-2' into staging
Migration pull for 2.3. Mostly moving the code to the migration/
directory, and updating MAINTAINERS.
I've also folded my other MAINTAINERS update patches into this, as
they're small by themselves.
# gpg: Signature made Tue 16 Dec 2014 12:21:24 GMT using RSA key ID 854083B6
# gpg: Good signature from "Amit Shah <amit@amitshah.net>"
# gpg: aka "Amit Shah <amit@kernel.org>"
# gpg: aka "Amit Shah <amitshah@gmx.net>"
* remotes/amit-migration/tags/for-2.3-2:
MAINTAINERS: Update for migrated migration code
Split the QEMU buffered file code out
Split struct QEMUFile out
Remove migration- pre/post fixes off files in migration/ dir
Start migrating migration code into a migration directory
qmp-command.hx: add missing docs for migration capabilites
cpu: verify that block->host is set
cpu: assert host pointer offset within block
exec: add wrapper for host pointer access
MAINTAINERS: add include files to virtio-serial entry
MAINTAINERS: add entry for virtio-rng
MAINTAINERS: migration: add vmstate static checker files
MAINTAINERS: Add myself to migration maintainers
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The HW cursor cannot be painted on a shared surface. This fixes HW
cursor display in Windows NT 4.0 and Windows 98.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This prevents surface sharing which will be necessary to
fix cirrus HW cursor support.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
If errors happen for middle items of channel_list,
qmp_query_spice_channels() returns NULL, and the variable
cur_item going out of scope leaks the storage it points to.
The flag is a compatibility thing for older spice-server
versions. Meanwhile our minimum spice version requirement is
new enough that we should never ever see this error, and if we
do something went very seriously wrong. Let's using assert()
instead of returning NULL to avoid a memory leak.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Nothing seems to be using functions from spice-experimental.h (better
that way). Let's remove its inclusion.
Signed-off-by: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
It is possible to use Spice server without TCP port. On local VM,
qemu (and libvirt) can add new clients thanks to QMP add_client command.
Signed-off-by: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add fast path to qemu_spice_display_switch in case old and new
displaysurface have identical size (happens with display panning
and page flipping). We just swap the backing store then and don't
go through the whole process of deleting and creating the primary
surface.
To simplify the code a bit move mirror surface allocation to
qemu_spice_display_switch().
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Now that cursor updates are out of the way qxl needs the refresh timer
only when when running in vga mode, for dirty bitmap checking. In
native qxl mode the guest will notify us, so we don't need to poll and
can use the idle interval (one refresh wakeup every few seconds).
Cc: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Calling directly doesn't work due to the qxl-render code running in
spice server thread context. Meanwhile bottom half scheduling is
thread-safe though, so we can use that to kick a cursor update in
main i/o thread context.
Cc: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This array is used by print_mips16_insn_arg() which is guarded by #if 0.
Therefore doing the same with the array as it generates clang warnings.
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Set DisasContext's ulri member to 0 or 1 as with other bool members.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reduce line wrapping throughout MSA helper macros by using a local float
status pointer rather than referring to the float status through the
environment each time. No functional change.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Add missing calls to synchronise the SoftFloat status with the CP1.FSCR:
+ for the rounding and flush-to-zero modes upon processor reset,
+ for the flush-to-zero mode on FSCR updates through the GDB stub.
Refactor code accordingly and remove the redundant RESTORE_ROUNDING_MODE
macro.
Signed-off-by: Thomas Schwinge <thomas@codesourcery.com>
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Replace the 20Kc original MIPS64 ISA processor used for 64-bit user
emulation with the 5KEf processor that implements the MIPS64r2 ISA,
complementing the choice of the 24Kf processor for 32-bit emulation.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Make CP0.Status writes made with the MTTC0 instruction respect this
register's mask just like all the other places. Also preserve the
current values of masked out bits.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Rewrite the FPU register access parts of `mips_cpu_gdb_read_register'
and `mips_cpu_gdb_write_register' for consistency between each other.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Make sure the address space is unconditionally wrapped on 32-bit
processors, that is ones that do not implement at least the MIPS III
ISA.
Also make MIPS16 SAVE and RESTORE instructions use address calculation
rather than plain arithmetic operations for stack pointer manipulation
so that their semantics for stack accesses follows the architecture
specification. That in particular applies to user software run on
64-bit processors with the CP0.Status.UX bit clear where the address
space is wrapped to 32 bits.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Tighten ISA level checks down to MIPS II that many of our instructions
are missing. Also make sure any 64-bit instruction enables are only
applied to 64-bit processors, that is ones that implement at least the
MIPS III ISA.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Fix CP0.Config3.ISAOnExc write accesses on microMIPS processors. This
bit is mandatory for any processor that implements the microMIPS
instruction set. This bit is r/w for processors that implement both the
standard MIPS and the microMIPS instruction set. This bit is r/o and
hardwired to 1 if only the microMIPS instruction set is implemented.
There is no other bit ever writable in CP0.Config3 so defining a
corresponding `CP0_Config3_rw_bitmask' member in `CPUMIPSState' is I
think an overkill. Therefore make the ability to write the bit rely on
the presence of ASE_MICROMIPS set in the instruction flags.
The read-only case of the microMIPS instruction set being implemented
only can be added when we add support for such a configuration. We do
not currently have such support, we have no instruction flag that would
control the presence of the standard MIPS instruction set nor any
associated code in instruction decoding.
This change is needed to boot a microMIPS Linux kernel successfully,
otherwise it hangs early on as interrupts are enabled and then the
exception handler invoked loops as its first instruction is interpreted
in the wrong execution mode and triggers another exception right away.
And then over and over again.
We already check the current setting of the CP0.Config3.ISAOnExc in
`set_hflags_for_handler' to set the ISA bit correctly on the exception
handler entry so it is the ability to set it that is missing only.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Include CP0.Config2 through CP0.Config5 registers in the register dump
produced with the `info registers' monitor command. Align vertically
with the registers already output.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Fix microMIPS MOVE16 and MOVEP instructions on 64-bit processors by
using register addition operations.
This copies the approach taken with MIPS16 MOVE instructions (I8_MOV32R
and I8_MOVR32 opcodes) and follows the observation that OPC_ADDU expands
to tcg_gen_mov_tl whenever `rt' is 0 and `rs' is not, therefore copying
`rs' to `rd' verbatim. This is not the case with OPC_ADDIU where a
sign-extension from bit #31 is made, unless in the uninteresting case of
`rs' being 0, losing the upper 32 bits of the value copied for any
proper 64-bit values.
This also serves as an optimization as one op is produced in generated
code rather than two (again, unless `rs' is 0, where it doesn't change
anything).
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Make writes to CP0.Status and CP0.Cause have the same effect as
executing corresponding MTC0 instructions would in Kernel Mode. Also
ignore writes in the user emulation mode.
Currently for requests from the GDB stub we write all the bits across
both registers, ignoring any read-only locations, and do not synchronise
the environment to evaluate side effects. We also write these registers
in the user emulation mode even though a real kernel presents them as
read only.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Gonglei