Commit Graph

71552 Commits

Author SHA1 Message Date
Aleksandar Markovic a30e2f2180 target/mips: Clean up handling of CP0 register 28
Clean up handling of CP0 register 28.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-28-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 12:07:56 +02:00
Aleksandar Markovic 5a10873d7d target/mips: Clean up handling of CP0 register 27
Clean up handling of CP0 register 27.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-27-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 12:07:38 +02:00
Aleksandar Markovic dbbf08b289 target/mips: Clean up handling of CP0 register 26
Clean up handling of CP0 register 26.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-26-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 12:07:26 +02:00
Aleksandar Markovic 1176b328c3 target/mips: Clean up handling of CP0 register 25
Clean up handling of CP0 register 25.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-25-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 12:07:11 +02:00
Aleksandar Markovic 8d7b4b6efb target/mips: Clean up handling of CP0 register 24
Clean up handling of CP0 register 24.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-24-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 12:06:29 +02:00
Aleksandar Markovic 4cbf4b6d00 target/mips: Clean up handling of CP0 register 23
Clean up handling of CP0 register 23.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-23-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 12:06:07 +02:00
Aleksandar Markovic 14f92b0b9c target/mips: Clean up handling of CP0 register 20
Clean up handling of CP0 register 20.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-22-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 12:05:51 +02:00
Aleksandar Markovic be274dc18e target/mips: Clean up handling of CP0 register 19
Clean up handling of CP0 register 19.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-21-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 12:04:01 +02:00
Aleksandar Markovic e8dcfe825a target/mips: Clean up handling of CP0 register 18
Clean up handling of CP0 register 18.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-20-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:56:05 +02:00
Aleksandar Markovic 706ce14205 target/mips: Clean up handling of CP0 register 17
Clean up handling of CP0 register 17.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-19-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:55:49 +02:00
Aleksandar Markovic 433efb4cca target/mips: Clean up handling of CP0 register 16
Clean up handling of CP0 register 16.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-18-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:55:33 +02:00
Aleksandar Markovic 4466cd49e5 target/mips: Clean up handling of CP0 register 15
Clean up handling of CP0 register 15.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-17-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:55:18 +02:00
Aleksandar Markovic 35e4b54d90 target/mips: Clean up handling of CP0 register 14
Clean up handling of CP0 register 14.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-16-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:55:01 +02:00
Aleksandar Markovic e3c7559d89 target/mips: Clean up handling of CP0 register 13
Clean up handling of CP0 register 13.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-15-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:54:40 +02:00
Aleksandar Markovic 2b0848674b target/mips: Clean up handling of CP0 register 12
Clean up handling of CP0 register 12.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-14-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:54:22 +02:00
Aleksandar Markovic f5f3834ff0 target/mips: Clean up handling of CP0 register 11
Clean up handling of CP0 register 11.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-13-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:54:07 +02:00
Aleksandar Markovic 860ffef047 target/mips: Clean up handling of CP0 register 10
Clean up handling of CP0 register 10.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-12-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:53:52 +02:00
Aleksandar Markovic e5a98a7232 target/mips: Clean up handling of CP0 register 9
Clean up handling of CP0 register 9.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-11-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:53:23 +02:00
Aleksandar Markovic 67d167d2d8 target/mips: Clean up handling of CP0 register 8
Clean up handling of CP0 register 8.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-10-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:53:07 +02:00
Aleksandar Markovic 143a9875e5 target/mips: Clean up handling of CP0 register 7
Clean up handling of CP0 register 7.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-9-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:52:51 +02:00
Aleksandar Markovic 9023594b40 target/mips: Clean up handling of CP0 register 6
Clean up handling of CP0 register 6.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-8-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:52:31 +02:00
Aleksandar Markovic a1e76353e3 target/mips: Clean up handling of CP0 register 5
Clean up handling of CP0 register 5.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-7-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:52:11 +02:00
Aleksandar Markovic 020fe37909 target/mips: Clean up handling of CP0 register 4
Clean up handling of CP0 register 4.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-6-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:51:09 +02:00
Aleksandar Markovic acd3731632 target/mips: Clean up handling of CP0 register 3
Clean up handling of CP0 register 3.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-5-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:50:58 +02:00
Aleksandar Markovic 6d27d5bd73 target/mips: Clean up handling of CP0 register 2
Clean up handling of CP0 register 2.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-4-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:50:47 +02:00
Aleksandar Markovic 30deb4605b target/mips: Clean up handling of CP0 register 1
Clean up handling of CP0 register 1.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-3-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:50:35 +02:00
Aleksandar Markovic 1b142da5f8 target/mips: Clean up handling of CP0 register 0
Clean up handling of CP0 register 0.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-2-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-29 11:50:18 +02:00
Bandan Das e4c1c64112 usb-mtp: add sanity checks on rootdir
Currently, we don't check if rootdir exists and is accessible.
Furthermore, a trailing slash results in a null "desc" string which
ends up in the share not visible in the guest. Add some simple
sanity checks for appropriate permissions. Also, bail out if the
user does not supply an absolute path.

Signed-off-by: Bandan Das <bsd@redhat.com>
Message-id: jpga7bto3on.fsf@linux.bootlegged.copy
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-29 07:31:12 +02:00
fangying 7cec2ed9d7 xhci: Fix memory leak in xhci_kick_epctx
Address Sanitizer shows memory leak in xhci_kick_epctx hw/usb/hcd-xhci.c:1912.
A sglist is leaked when a packet is retired and returns USB_RET_NAK status.
The leak stack is as bellow:

Direct leak of 2688 byte(s) in 168 object(s) allocated from:
    #0 0xffffae8b11db in __interceptor_malloc (/lib64/libasan.so.4+0xd31db)
    #1 0xffffae5c9163 in g_malloc (/lib64/libglib-2.0.so.0+0x57163)
    #2 0xaaaabb6fb3f7 in qemu_sglist_init dma-helpers.c:43
    #3 0xaaaabba705a7 in pci_dma_sglist_init include/hw/pci/pci.h:837
    #4 0xaaaabba705a7 in xhci_xfer_create_sgl hw/usb/hcd-xhci.c:1443
    #5 0xaaaabba705a7 in xhci_setup_packet hw/usb/hcd-xhci.c:1615
    #6 0xaaaabba77a6f in xhci_kick_epctx hw/usb/hcd-xhci.c:1912
    #7 0xaaaabbdaad27 in timerlist_run_timers util/qemu-timer.c:592
    #8 0xaaaabbdab19f in qemu_clock_run_timers util/qemu-timer.c:606
    #9 0xaaaabbdab19f in qemu_clock_run_all_timers util/qemu-timer.c:692
    #10 0xaaaabbdab9a3 in main_loop_wait util/main-loop.c:524
    #11 0xaaaabb6ff5e7 in main_loop vl.c:1806
    #12 0xaaaabb1e1453 in main vl.c:4488

Signed-off-by: Ying Fang <fangying1@huawei.com>
Message-id: 20190828062535.1573-1-fangying1@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-29 07:30:04 +02:00
Ying Fang c9e3859262 xhci: Fix memory leak in xhci_address_slot
Address Sanitizer shows memory leak in xhci_address_slot
hw/usb/hcd-xhci.c:2156 and the stack is as bellow:

Direct leak of 64 byte(s) in 4 object(s) allocated from:
    #0 0xffff91c6f5ab in realloc (/lib64/libasan.so.4+0xd35ab)
    #1 0xffff91987243 in g_realloc (/lib64/libglib-2.0.so.0+0x57243)
    #2 0xaaaab0b26a1f in qemu_iovec_add util/iov.c:296
    #3 0xaaaab07e5ce3 in xhci_address_slot hw/usb/hcd-xhci.c:2156
    #4 0xaaaab07e5ce3 in xhci_process_commands hw/usb/hcd-xhci.c:2493
    #5 0xaaaab00058d7 in memory_region_write_accessor qemu/memory.c:507
    #6 0xaaaab0000d87 in access_with_adjusted_size memory.c:573
    #7 0xaaaab000abcf in memory_region_dispatch_write memory.c:1516
    #8 0xaaaaaff59947 in flatview_write_continue exec.c:3367
    #9 0xaaaaaff59c33 in flatview_write exec.c:3406
    #10 0xaaaaaff63b3b in address_space_write exec.c:3496
    #11 0xaaaab002f263 in kvm_cpu_exec accel/kvm/kvm-all.c:2288
    #12 0xaaaaaffee427 in qemu_kvm_cpu_thread_fn cpus.c:1290
    #13 0xaaaab0b1a943 in qemu_thread_start util/qemu-thread-posix.c:502
    #14 0xffff908ce8bb in start_thread (/lib64/libpthread.so.0+0x78bb)
    #15 0xffff908165cb in thread_start (/lib64/libc.so.6+0xd55cb)

Cc: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Ying Fang <fangying1@huawei.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Message-id: 20190827080209.2365-1-fangying1@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-29 07:29:44 +02:00
Cleber Rosa 41a7af1ce0 VNC Acceptance test: simplify test names
The test name is composed of the class name and method name, so it
looks like there's some redundancy here that we can eliminate.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190607152223.9467-7-crosa@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2019-08-28 21:10:15 -04:00
Cleber Rosa 83fa3bc301 Boot Linux Console Test: add a test for ppc64 + pseries
Just like the previous tests, boots a Linux kernel on a ppc64 target
using the pseries machine.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
CC: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-Id: <20190607152223.9467-5-crosa@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2019-08-28 21:10:03 -04:00
Cleber Rosa 7a408b9976 Acceptance tests: drop left over usage of "🥑 enable"
Commit 9531d26c10 removed all of "🥑 enable" tags, but then
a new entry was added with the introduction of migration.py.

Let's remove it for consistency.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190607152223.9467-4-crosa@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2019-08-28 20:42:16 -04:00
Cleber Rosa 9f672f9c0f tests/requirements.txt: pin paramiko version requirement
It's a good practice (I'd really say a must) to pin as much as
possible of the software versions used during test, so let's apply
that to paramiko.

According to https://pypi.org/project/paramiko/, 2.4.2 is the latest
released version.  It's also easily obtainable on systems such as
Fedora 30.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190607152223.9467-3-crosa@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2019-08-28 20:42:16 -04:00
Satheesh Rajendran 9162967ca5 tests.acceptance.avocado_qemu: Add support for powerpc
Current acceptance test will not run properly in powerpc
environment due qemu target is different from arch, this
usually matches, except with bi-endian architectures like ppc64.
uname would return `ppc64` or `ppc64le` based `big` or `little`
endian but qemu `target` is always `ppc64`. Let's handle it.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Message-Id: <20190819082820.14817-1-sathnaga@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2019-08-28 20:42:16 -04:00
Greg Kurz b1e8156743 spapr: Set compat mode in spapr_core_plug()
A recent change in spapr_machine_reset() showed that resetting the compat
mode in spapr_machine_reset() for the boot vCPU and in spapr_cpu_reset()
for all other vCPUs was fragile. The fix was thus to reset the compat mode
for all vCPUs in spapr_machine_reset(), but we still have to propagate
it to hot-plugged CPUs. This is still performed from spapr_cpu_reset(),
hence resulting in ppc_set_compat() being called twice for every vCPU at
machine reset. Apart from wasting cycles, which isn't really an issue
during machine reset, this seems to indicate that spapr_cpu_reset() isn't
the best place to set the compat mode.

A natural candidate for CPU-hotplug specific code is spapr_core_plug().
Also, it sits in the same file as spapr_machine_reset() : this makes
it easier for someone who wants to know when the compat PVR is set.

Call ppc_set_compat() from there. This doesn't need to be done for
initial vCPUs since the compat PVR is 0 and spapr_machine_reset() sets
the appropriate value later. No need to do this on manually added vCPUS
on the destination QEMU during migration since the compat PVR is
part of the migrated vCPU state. Both conditions can be checked with
spapr_drc_hotplugged().

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <156701285312.499757.7807417667750711711.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
Greg Kurz 572ebd08b3 spapr/pci: Convert types to QEMU coding style
The QEMU coding style requires:
- to typedef structured types (HACKING)
- to use CamelCase for types and structure names (CODING_STYLE)

Do that for PCI and Nvlink2 code.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <156701644465.505236.2850655823182656869.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
Alexey Kardashevskiy 6c3829a265 spapr_pci: Advertise BAR reallocation capability
The pseries guests do not normally allocate PCI resources and rely on
the system firmware doing so. Furthermore at least at some point in
the past the pseries guests won't even allowed to change BARs, probably
it is still the case for phyp. So since the initial commit we have [1]
which prevents resource reallocation.

This is not a problem until we want specific BAR alignments, for example,
PAGE_SIZE==64k to make sure we can still map MMIO BARs directly. For
the boot time devices we handle this in SLOF [2] but since QEMU's RTAS
does not allocate BARs, the guest does this instead and does not align
BARs even if Linux is given pci=resource_alignment=16@pci:0:0 as
PCI_PROBE_ONLY makes Linux ignore alignment requests.

ARM folks added a dial to control PCI_PROBE_ONLY via the device tree [3].
This makes use of the dial to advertise to the guest that we can handle
BAR reassignments. This limits the change to the latest pseries machine
to avoid old guests explosion.

We do not remove the flag from [1] as pseries guests are still supported
under phyp so having that removed may cause problems.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/powerpc/platforms/pseries/setup.c?h=v5.1#n773
[2] https://git.qemu.org/?p=SLOF.git;a=blob;f=board-qemu/slof/pci-phb.fs;h=06729bcf77a0d4e900c527adcd9befe2a269f65d;hb=HEAD#l338
[3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f81c11af
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20190719043734.108462-1-aik@ozlabs.ru>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
David Gibson 9146206eb2 spapr: Use SHUTDOWN_CAUSE_SUBSYSTEM_RESET for CAS reboots
The sPAPR platform includes feature negotiation between the guest and
platform.  That sometimes requires reconfiguring the virtual hardware, and
in some cases that is a complex enough process that we trigger a system
reset to handle it.  That interacts badly with -no-reboot - we trigger the
reboot, -no-reboot means we exit and so the guest never gets to try again.

Eventually we want to get rid of CAS reboots entirely, since they're odd
and irritating for the user.  But in the meantime we can fix the -no-reboot
problem by using SHUTDOWN_CAUSE_SUBSYSTEM_RESET which ignores -no-reboot
and seems to be designed for this sort of faux-reset for internal purposes
only.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
Suraj Jitindar Singh 289af4ac99 powerpc/spapr: Add host threads parameter to ibm,get_system_parameter
The ibm,get_system_parameter rtas call is used by the guest to retrieve
data relating to certain parameters of the system. The SPLPAR
characteristics option (token 20) is used to determine characteristics of
the environment in which the lpar will run.

It may be useful for a guest to know the number of physical host threads
present on the underlying system where it is being run. Add the
characteristic "HostThrs" to the SPLPAR Characteristics
ibm,get_system_parameter rtas call to expose this information to a
guest. Add a n_host_threads property to the processor class which is
then used to retrieve this information and define it for POWER8 and
POWER9. Other processors will default to 0 and the charateristic won't
be added.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>

Message-Id: <20190827045751.22123-1-sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
Alexey Kardashevskiy 00eaad2e29 pseries: Update SLOF firmware image
This allocates space for FWNMI log in RTAS and fixes phandles at
the ibm,client-architecture-support stage.

The full list is:
 * libnet: Fix the check of the argument lengths of the "ping" command
 * fdt: Update phandles after H_CAS
 * rtas: Reserve space for FWNMI log

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
Stefan Brankovic 897b639789 target/ppc: Refactor emulation of vmrgew and vmrgow instructions
Since I found this two instructions implemented with tcg, I refactored
them so they are consistent with other similar implementations that
I introduced in this patch.

Also, a new dual macro GEN_VXFORM_TRANS_DUAL is added. This macro is
used if one instruction is realized with direct translation, and second
one with a helper.

Signed-off-by: Stefan Brankovic <stefan.brankovic@rt-rk.com>
Message-Id: <1566898663-25858-4-git-send-email-stefan.brankovic@rt-rk.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
Richard Henderson 16ce2fffa6 target/ppc: Fix do_float_check_status vs inexact
The underflow and inexact exceptions are not mutually exclusive.
Check for both of them.  Tidy the reset of FPSCR[FI].

Fixes: https://bugs.launchpad.net/bugs/1841442
Reported-by: Paul Clarke <pc@us.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Paul Clarke <pc@us.ibm.com>
Message-Id: <20190826165434.18403-2-richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
Richard Henderson cbc65a8f22 target/ppc: Set float_tininess_before_rounding at cpu reset
As defined in Power 3.0 section 4.4.4 "Underflow Exception",
a tiny result is detected before rounding.

Fixes: https://bugs.launchpad.net/qemu/+bug/1841491
Reported-by: Paul Clarke <pc@us.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20190827020013.27154-1-richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
Laurent Vivier ce03a193e1 pseries: Fix compat_pvr on reset
If we a migrate P8 machine to a P9 machine, the migration fails on
destination with:

  error while loading state for instance 0x1 of device 'cpu'
  load of migration failed: Operation not permitted

This is caused because the compat_pvr field is only present for the first
CPU.
Originally, spapr_machine_reset() calls ppc_set_compat() to set the value
max_compat_pvr for the first cpu and this was propagated to all CPUs by
spapr_cpu_reset().  Now, as spapr_cpu_reset() is called before that, the
value is not propagated to all CPUs and the migration fails.

To fix that, propagate the new value to all CPUs in spapr_machine_reset().

Fixes: 25c9780d38 ("spapr: Reset CAS & IRQ subsystem after devices")
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20190826090812.19080-1-lvivier@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
Daniel Henrique Barboza 02a1536eee spapr_pci: remove all child functions in function zero unplug
There is nothing wrong with how sPAPR handles multifunction PCI
hot unplugs. The problem is that x86 does it simpler. Instead of
removing each non-zero function and then removing function zero,
x86 can remove any function of the slot to trigger the hot unplug.

Libvirt will be directly impacted by this difference, in the
(hopefully soon) PCI Multifunction hot plug/unplug support. For
hot plugs, both x86 and sPAPR will operate the same way: a XML
with all desired functions to be added, then consecutive hotplugs
of all non-zero functions first, zero last. For hot unplugs, at
least in the current state, a XML with the devices to be removed
must also be provided because of how sPAPR operates - x86 does
not need it - since any function unplug will unplug the whole
PCIe slot. This difference puts extra strain in the management
layer, which needs to either handle both archs differently in
the unplug scenario or choose treat x86 like sPAPR, forcing x86
users to cope with sPAPR internals.

This patch changes spapr_pci_unplug_request to handle the
unplug of function zero differently. When removing function zero,
instead of error-ing out if there are any remaining function
DRCs which needs detaching, detach those. This has no effect in
any existing scripts that are detaching the non-zero functions
before function zero, and can be used by management as a shortcut
to remove the whole PCI multifunction device without specifying
each child function.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20190822195918.3307-1-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
Paul A. Clarke fa7d9cb960 ppc: Fix xscvdpspn for SNAN
The xscvdpspn instruction implements a non-arithmetic conversion.
In particular, NaNs are not silenced and rounding is not performed.

Rewrite to match the pseudocode for ConvertDPtoSP_NS() in the
Power 3.0B manual.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
Message-Id: <1566321964-1447-1-git-send-email-pc@us.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[dwg: Replaced description with clearer version from rth]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
Paul A. Clarke 256be7d07a ppc: Fix xsmaddmdp and friends
A class of instructions of the form:
  op Target,A,B
which operate like:
  Target = Target * A + B
have a bit set which distinguishes them from instructions that operate as:
  Target = Target * B + A

This bit is not being checked properly (using PPC_BIT macro), so all
instructions in this class are operating incorrectly as the second form
above.  The bit was being checked as if it were part of a 64-bit
instruction opcode, rather than a proper 32-bit opcode.  Fix by using the
macro (PPC_BIT32) which treats the opcode as a 32-bit quantity.

Fixes: c9f4e4d8b6 ("target/ppc: improve VSX_FMADD with new GEN_VSX_HELPER_VSX_MADD macro")

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
Message-Id: <1566401321-22419-1-git-send-email-pc@us.ibm.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Tested-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
Cédric Le Goater 5185a5b6c7 tests/boot-serial-test: add support for all the PowerNV machines
Use the machine names specifiying the CPU type, POWER8 and POWER9.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190731141233.1340-3-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:46:07 +10:00
Cédric Le Goater f30c843ced ppc/pnv: Introduce PowerNV machines with fixed CPU models
Make the current "powernv" machine an abstract type and derive from it
new machines with specific CPU models: power8 and power9.

The "powernv" machine is now an alias on the "powernv9" machine.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190731141233.1340-2-clg@kaod.org>
[dwg: Adjust pnv-xscom-test to cope with this change]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-29 09:45:53 +10:00