Commit Graph

105958 Commits

Author SHA1 Message Date
Richard Henderson
da2b71fab6 linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h
Copy each guest kernel's default value, then bound it
against reserved_va or the host address space.

Tested-by: Helge Deller <deller@gmx.de>
Reviewed-by: Helge Deller <deller@gmx.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-08 13:27:15 -07:00
Richard Henderson
2d708164e0 linux-user: Define TASK_UNMAPPED_BASE in $guest/target_mman.h
Provide default values that are as close as possible to the
values used by the guest's kernel.

Tested-by: Helge Deller <deller@gmx.de>
Reviewed-by: Helge Deller <deller@gmx.de>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-08 13:24:27 -07:00
Richard Henderson
c8fb5cf97d linux-user: Adjust task_unmapped_base for reserved_va
Ensure that the chosen values for mmap_next_start and
task_unmapped_base are within the guest address space.

Tested-by: Helge Deller <deller@gmx.de>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-08 13:24:21 -07:00
Paolo Bonzini
971fac2731 configure: unify case statements for CPU canonicalization
The CPU model has to be canonicalized to what Meson wants in the cross
file, to what Linux uses for its asm-$ARCH directories, and to what
QEMU uses for its user-mode emulation host/$ARCH directories.  Do
all three in a single case statement, and check that the Linux and
QEMU directories actually exist.

At a small cost in repeated lines, this ensures that there are no hidden
ordering requirements between the case statements.  In particular, commit
89e5b7935e ("configure: Fix linux-user host detection for riscv64",
2023-08-06) broke ppc64le because it assigned host_arch based on a
non-canonicalized version of $cpu.

Reported-by: Joel Stanley <joel@jms.id.au>
Fixes: 89e5b7935e ("configure: Fix linux-user host detection for riscv64", 2023-08-06)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Michael Tokarev <mjt@tls.msk.ru>
Message-ID: <20230808120303.585509-4-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-08-08 20:44:11 +02:00
Paolo Bonzini
50a0012227 linux-user: cleanup unused linux-user/include/host directories
Alpha and 31-bit s390 lack the assembly fragment to handle signals
occurring at the same time as system calls, so they cannot run
linux-user emulation anymore.  Drop the host-signal.h files for
them.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Michael Tokarev <mjt@tls.msk.ru>
Message-ID: <20230808120303.585509-3-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-08-08 20:44:08 +02:00
Paolo Bonzini
f140823c56 configure: fix detection for x32 linux-user
x32 uses the same signal handling fragments as x86_64, since host_arch
is set to x86_64 when Meson runs.  Remove the unnecessary forwarder and
set the host_arch variable properly in configure.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Michael Tokarev <mjt@tls.msk.ru>
Message-ID: <20230808120303.585509-2-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-08-08 20:44:03 +02:00
Ankit Kumar
ec5a138ce6 docs: update hw/nvme documentation for protection information
Add missing entry for pif ("protection information format").
Protection information size can be 8 or 16 bytes, Update the pil entry
as per the NVM command set specification.

Signed-off-by: Ankit Kumar <ankit.kumar@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2023-08-08 15:28:05 +02:00
Ankit Kumar
dbdb13f931 hw/nvme: fix CRC64 for guard tag
The nvme CRC64 generator expects the caller to pass inverted seed value.
Pass inverted crc value for metadata buffer.

Cc: qemu-stable@nongnu.org
Fixes: 44219b6029 ("hw/nvme: 64-bit pi support")
Signed-off-by: Ankit Kumar <ankit.kumar@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2023-08-08 08:09:38 +02:00
Richard Henderson
0450cf0897 Fixes for 8.1
Hi,
 
 Here is a collection of ui, dump and chardev fixes that are worth for 8.1.
 
 thanks
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Merge tag 'fixes-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

Fixes for 8.1

Hi,

Here is a collection of ui, dump and chardev fixes that are worth for 8.1.

thanks

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# gpg: Signature made Mon 07 Aug 2023 01:46:51 PM PDT
# gpg:                using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg:                issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]

* tag 'fixes-pull-request' of https://gitlab.com/marcandre.lureau/qemu:
  ui/gtk: set scanout mode in gd_egl/gd_gl_area_scanout_texture
  hw/i386/vmmouse:add relative packet flag for button status
  dump: kdump-zlib data pages not dumped with pvtime/aarch64
  virtio-gpu: reset gfx resources in main thread
  virtio-gpu: free BHs, by implementing unrealize
  chardev: report the handshake error

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-07 13:55:00 -07:00
Richard Henderson
474892a961 trivial-patches for 2023-08-07
there are 3 trivial bugfixes in there, for 8.1
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Merge tag 'trivial-patches-pull' of https://gitlab.com/mjt0k/qemu into staging

trivial-patches for 2023-08-07

there are 3 trivial bugfixes in there, for 8.1

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# gpg: Signature made Mon 07 Aug 2023 03:54:03 AM PDT
# gpg:                using RSA key 7B73BAD68BE7A2C289314B22701B4F6B1A693E59
# gpg:                issuer "mjt@tls.msk.ru"
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" [undefined]
# gpg:                 aka "Michael Tokarev <mjt@debian.org>" [undefined]
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>" [undefined]
# 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: 6EE1 95D1 886E 8FFB 810D  4324 457C E0A0 8044 65C5
#      Subkey fingerprint: 7B73 BAD6 8BE7 A2C2 8931  4B22 701B 4F6B 1A69 3E59

* tag 'trivial-patches-pull' of https://gitlab.com/mjt0k/qemu:
  Fixed incorrect LLONG alignment for openrisc and cris
  stubs/colo.c: spelling
  hw/i2c: Fix bitbang_i2c_data trace event

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-07 13:54:43 -07:00
Richard Henderson
e0e5dca517 hw/nvme fixes
- two fixes for hw/nvme
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Merge tag 'nvme-next-pull-request' of https://gitlab.com/birkelund/qemu into staging

hw/nvme fixes

- two fixes for hw/nvme

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# gpg: Signature made Mon 07 Aug 2023 04:53:18 AM PDT
# gpg:                using RSA key 522833AA75E2DCE6A24766C04DE1AF316D4F0DE9
# gpg: Good signature from "Klaus Jensen <its@irrelevant.dk>" [unknown]
# gpg:                 aka "Klaus Jensen <k.jensen@samsung.com>" [unknown]
# 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: DDCA 4D9C 9EF9 31CC 3468  4272 63D5 6FC5 E55D A838
#      Subkey fingerprint: 5228 33AA 75E2 DCE6 A247  66C0 4DE1 AF31 6D4F 0DE9

* tag 'nvme-next-pull-request' of https://gitlab.com/birkelund/qemu:
  hw/nvme: fix compliance issue wrt. iosqes/iocqes
  hw/nvme: fix oob memory read in fdp events log

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-07 07:50:54 -07:00
Dongwon Kim
58ea90f803 ui/gtk: set scanout mode in gd_egl/gd_gl_area_scanout_texture
Fixing a regression (black screen) caused by a commit 92b58156e7
("ui/gtk: set scanout-mode right before scheduling draw").

The commit 92b58156e7 was made with an assumption that the scanout
mode needs to be set only if the guest scanout is a dmabuf but there
are cases (e.g. virtio-gpu-virgl) where the scanout is still processed
in a form of a texture but is not backed by dmabuf. So it is needed
to put back the line that sets scanout mode in gd_egl_scanout_texture
and gd_gl_area_scanout_texture.

Fixes: 92b58156e7 ("ui/gtk: set scanout-mode right before scheduling draw)
Reported-by: Volker Rümelin <vr_qemu@t-online.de>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <20230725001131.24017-1-dongwon.kim@intel.com>
2023-08-07 17:13:42 +04:00
Zongmin Zhou
fdd649538e hw/i386/vmmouse:add relative packet flag for button status
The buttons value use macros instead of direct numbers.

If request relative mode, have to add this for
guest vmmouse driver to judge this is a relative packet.
otherwise,vmmouse driver will not match
the condition 'status & VMMOUSE_RELATIVE_PACKET',
and can't report events on the correct(relative) input device,
result to relative mode unuseful.

Signed-off-by: Zongmin Zhou<zhouzongmin@kylinos.cn>
Message-ID: <20230413081526.2229916-1-zhouzongmin@kylinos.cn>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2023-08-07 15:50:31 +04:00
Dongli Zhang
8a64609eea dump: kdump-zlib data pages not dumped with pvtime/aarch64
The kdump-zlib data pages are not dumped from aarch64 host when the
'pvtime' is involved, that is, when the block->target_end is not aligned to
page_size. In the below example, it is expected to dump two blocks.

(qemu) info mtree -f
... ...
  00000000090a0000-00000000090a0fff (prio 0, ram): pvtime KVM
... ...
  0000000040000000-00000001bfffffff (prio 0, ram): mach-virt.ram KVM
... ...

However, there is an issue with get_next_page() so that the pages for
"mach-virt.ram" will not be dumped.

At line 1296, although we have reached at the end of the 'pvtime' block,
since it is not aligned to the page_size (e.g., 0x10000), it will not break
at line 1298.

1255 static bool get_next_page(GuestPhysBlock **blockptr, uint64_t *pfnptr,
1256                           uint8_t **bufptr, DumpState *s)
... ...
1294             memcpy(buf + addr % page_size, hbuf, n);
1295             addr += n;
1296             if (addr % page_size == 0) {
1297                 /* we filled up the page */
1298                 break;
1299             }

As a result, get_next_page() will continue to the next
block ("mach-virt.ram"). Finally, when get_next_page() returns to the
caller:

- 'pfnptr' is referring to the 'pvtime'
- but 'blockptr' is referring to the "mach-virt.ram"

When get_next_page() is called the next time, "*pfnptr += 1" still refers
to the prior 'pvtime'. It will exit immediately because it is out of the
range of the current "mach-virt.ram".

The fix is to break when it is time to come to the next block, so that both
'pfnptr' and 'blockptr' refer to the same block.

Fixes: 94d788408d ("dump: fix kdump to work over non-aligned blocks")
Cc: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <20230713055819.30497-1-dongli.zhang@oracle.com>
2023-08-07 15:46:59 +04:00
Marc-André Lureau
a41e2d97f9 virtio-gpu: reset gfx resources in main thread
Calling OpenGL from different threads can have bad consequences if not
carefully reviewed. It's not generally supported. In my case, I was
debugging a crash in glDeleteTextures from OPENGL32.DLL, where I asked
qemu for gl=es, and thus ANGLE implementation was expected. libepoxy did
resolution of the global pointer for glGenTexture to the GLES version
from the main thread. But it resolved glDeleteTextures to the GL
version, because it was done from a different thread without correct
context. Oops.

Let's stick to the main thread for GL calls by using a BH.

Note: I didn't use atomics for reset_finished check, assuming the BQL
will provide enough of sync, but I might be wrong.

Acked-by: Dongwon Kim <dongwon.kim@intel.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230726173929.690601-3-marcandre.lureau@redhat.com>
2023-08-07 15:45:45 +04:00
Marc-André Lureau
957d77863e virtio-gpu: free BHs, by implementing unrealize
Acked-by: Dongwon Kim <dongwon.kim@intel.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230726173929.690601-2-marcandre.lureau@redhat.com>
2023-08-07 15:45:25 +04:00
Marc-André Lureau
81cd34a359 chardev: report the handshake error
This can help to debug connection issues.

Related to:
https://bugzilla.redhat.com/show_bug.cgi?id=2196182

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230510072531.3937189-1-marcandre.lureau@redhat.com>
2023-08-07 15:42:33 +04:00
Luca Bonissi
6ee960823d Fixed incorrect LLONG alignment for openrisc and cris
OpenRISC (or1k) has long long alignment to 4 bytes, but currently not
defined in abitypes.h. This lead to incorrect packing of /epoll_event/
structure and eventually infinite loop while waiting for file
descriptor[s] event[s].

Fixed also CRIS alignments (1 byte for all types).

Signed-off-by: Luca Bonissi <qemu@bonslack.org>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1770
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2023-08-07 13:52:59 +03:00
Michael Tokarev
beb1a91781 stubs/colo.c: spelling
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2023-08-07 13:52:59 +03:00
BALATON Zoltan
8ada214a90 hw/i2c: Fix bitbang_i2c_data trace event
The clock and data values were logged swapped. Correct the trace event
text to match what is logged. Also fix a typo in a comment nearby.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2023-08-07 13:52:59 +03:00
Klaus Jensen
6a33f2e920 hw/nvme: fix compliance issue wrt. iosqes/iocqes
As of prior to this patch, the controller checks the value of CC.IOCQES
and CC.IOSQES prior to enabling the controller. As reported by Ben in
GitLab issue #1691, this is not spec compliant. The controller should
only check these values when queues are created.

This patch moves these checks to nvme_create_cq(). We do not need to
check it in nvme_create_sq() since that will error out if the completion
queue is not already created.

Also, since the controller exclusively supports SQEs of size 64 bytes
and CQEs of size 16 bytes, hard code that.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1691
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2023-08-07 12:27:24 +02:00
Klaus Jensen
ecb1b7b082 hw/nvme: fix oob memory read in fdp events log
As reported by Trend Micro's Zero Day Initiative, an oob memory read
vulnerability exists in nvme_fdp_events(). The host-provided offset is
not verified.

Fix this.

This is only exploitable when Flexible Data Placement mode (fdp=on) is
enabled.

Fixes: CVE-2023-4135
Fixes: 73064edfb8 ("hw/nvme: flexible data placement emulation")
Reported-by: Trend Micro's Zero Day Initiative
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2023-08-07 08:51:37 +02:00
Richard Henderson
9400601a68 accel/tcg: Do not issue misaligned i/o
accel/tcg: Call save_iotlb_data from io_readx
 gdbstub: use 0 ("any process") on packets with no PID
 linux-user: Fixes for MAP_FIXED_NOREPLACE
 linux-user: Fixes for brk
 linux-user: Set V in ELF_HWCAP for RISC-V
 *-user: Remove last_brk as unused
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Merge tag 'pull-tcg-20230806-3' of https://gitlab.com/rth7680/qemu into staging

accel/tcg: Do not issue misaligned i/o
accel/tcg: Call save_iotlb_data from io_readx
gdbstub: use 0 ("any process") on packets with no PID
linux-user: Fixes for MAP_FIXED_NOREPLACE
linux-user: Fixes for brk
linux-user: Set V in ELF_HWCAP for RISC-V
*-user: Remove last_brk as unused

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* tag 'pull-tcg-20230806-3' of https://gitlab.com/rth7680/qemu:
  bsd-user: Remove last_brk
  linux-user: Remove last_brk
  linux-user: Properly set image_info.brk in flatload
  linux-user: Do not align brk with host page size
  linux-user: Do nothing if too small brk is specified
  linux-user: Use MAP_FIXED_NOREPLACE for do_brk()
  linux-user: Do not call get_errno() in do_brk()
  linux-user: Fix MAP_FIXED_NOREPLACE on old kernels
  linux-user: Unset MAP_FIXED_NOREPLACE for host
  linux-user/elfload: Set V in ELF_HWCAP for RISC-V
  configure: Fix linux-user host detection for riscv64
  gdbstub: use 0 ("any process") on packets with no PID
  accel/tcg: Call save_iotlb_data from io_readx as well
  accel/tcg: Do not issue misaligned i/o
  accel/tcg: Issue wider aligned i/o in do_{ld,st}_mmio_*
  accel/tcg: Adjust parameters and locking with do_{ld,st}_mmio_*

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 16:47:48 -07:00
Richard Henderson
3c4a8a8fda bsd-user: Remove last_brk
This variable is unused.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 16:46:13 -07:00
Richard Henderson
62cbf08150 linux-user: Remove last_brk
This variable is unused.

Reviewed-by: Helge Deller <deller@gmx.de>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 16:46:13 -07:00
Richard Henderson
0662a626a7 linux-user: Properly set image_info.brk in flatload
The heap starts at "brk" not "start_brk".  With this fixed,
image_info.start_brk is unused and may be removed.

Tested-by: Helge Deller <deller@gmx.de>
Reviewed-by: Helge Deller <deller@gmx.de>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 16:46:13 -07:00
Akihiko Odaki
2aea137a42 linux-user: Do not align brk with host page size
do_brk() minimizes calls into target_mmap() by aligning the address
with host page size, which is potentially larger than the target page
size. However, the current implementation of this optimization has two
bugs:

- The start of brk is rounded up with the host page size while brk
  advertises an address aligned with the target page size as the
  beginning of brk. This makes the beginning of brk unmapped.
- Content clearing after mapping is flawed. The size to clear is
  specified as HOST_PAGE_ALIGN(brk_page) - brk_page, but brk_page is
  aligned with the host page size so it is always zero.

This optimization actually has no practical benefit. It makes difference
when brk() is called multiple times with values in a range of the host
page size. However, sophisticated memory allocators try to avoid to
make such frequent brk() calls. For example, glibc 2.37 calls brk() to
shrink the heap only when there is a room more than 128 KiB. It is
rare to have a page size larger than 128 KiB if it happens.

Let's remove the optimization to fix the bugs and make the code simpler.

Fixes: 86f04735ac ("linux-user: Fix brk() to release pages")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1616
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20230802071754.14876-7-akihiko.odaki@daynix.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 16:46:03 -07:00
Akihiko Odaki
cb9d5d1fda linux-user: Do nothing if too small brk is specified
Linux 6.4.7 does nothing when a value smaller than the initial brk is
specified.

Fixes: 86f04735ac ("linux-user: Fix brk() to release pages")
Reviewed-by: Helge Deller <deller@gmx.de>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20230802071754.14876-6-akihiko.odaki@daynix.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 16:45:03 -07:00
Akihiko Odaki
e69e032d1a linux-user: Use MAP_FIXED_NOREPLACE for do_brk()
MAP_FIXED_NOREPLACE can ensure the mapped address is fixed without
concerning that the new mapping overwrites something else.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20230802071754.14876-5-akihiko.odaki@daynix.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 16:44:52 -07:00
Akihiko Odaki
c6cc059eca linux-user: Do not call get_errno() in do_brk()
Later the returned value is compared with -1, and negated errno is not
expected.

Fixes: 00faf08c95 ("linux-user: Don't use MAP_FIXED in do_brk()")
Reviewed-by: Helge Deller <deller@gmx.de>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20230802071754.14876-4-akihiko.odaki@daynix.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 16:39:00 -07:00
Akihiko Odaki
ddcdd8c48f linux-user: Fix MAP_FIXED_NOREPLACE on old kernels
The man page states:
> Note that older kernels which do not recognize the MAP_FIXED_NOREPLACE
> flag will typically (upon detecting a collision with a preexisting
> mapping) fall back to a “non-MAP_FIXED” type of behavior: they will
> return an address that is different from the requested address.
> Therefore, backward-compatible software should check the returned
> address against the requested address.
https://man7.org/linux/man-pages/man2/mmap.2.html

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20230802071754.14876-3-akihiko.odaki@daynix.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 10:10:11 -07:00
Akihiko Odaki
c3dd50da0f linux-user: Unset MAP_FIXED_NOREPLACE for host
Passing MAP_FIXED_NOREPLACE to host will fail for reserved_va because
the address space is reserved with mmap.  Replace it with MAP_FIXED
in that case.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20230802071754.14876-2-akihiko.odaki@daynix.com>
[rth: Expand inline commentary.]
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 10:10:11 -07:00
Nathan Egge
4333f0924c linux-user/elfload: Set V in ELF_HWCAP for RISC-V
Set V bit for hwcap if misa is set.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1793
Signed-off-by: Nathan Egge <negge@xiph.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Tested-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230803131424.40744-1-negge@xiph.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 10:10:11 -07:00
Richard Henderson
89e5b7935e configure: Fix linux-user host detection for riscv64
Mirror the host_arch variable from meson.build, so that we
probe for the correct linux-user/include/host/ directory.

Fixes: e3e477c3bc ("configure: Fix cross-building for RISCV host")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 10:10:11 -07:00
Matheus Tavares Bernardino
6c78de6eb6 gdbstub: use 0 ("any process") on packets with no PID
Previously, qemu-user would always report PID 1 to GDB. This was changed
at dc14a7a6e9 (gdbstub: Report the actual qemu-user pid, 2023-06-30),
but read_thread_id() still considers GDB packets with "no PID" as "PID
1", which is not the qemu-user PID. Fix that by parsing "no PID" as "0",
which the GDB Remote Protocol defines as "any process".

Note that this should have no effect for system emulation as, in this
case, gdb_create_default_process() will assign PID 1 for the first
process and that is what the gdbstub uses for GDB requests with no PID,
or PID 0.

This issue was found with hexagon-lldb, which sends a "Hg" packet with
only the thread-id, but no process-id, leading to the invalid usage of
"PID 1" by qemu-hexagon and a subsequent "E22" reply.

Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <78a3b06f6ab90a7ff8e73ae14a996eb27ec76c85.1690904195.git.quic_mathbern@quicinc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 10:10:11 -07:00
Mikhail Tyutin
c30d0b861c accel/tcg: Call save_iotlb_data from io_readx as well
Apply save_iotlb_data() to io_readx() as well as to io_writex().
This fixes SEGFAULT on qemu_plugin_hwaddr_phys_addr() call plugins
for addresses inside of MMIO region.

Signed-off-by: Dmitriy Solovev <d.solovev@yadro.com>
Signed-off-by: Mikhail Tyutin <m.tyutin@yadro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230804110903.19968-1-m.tyutin@yadro.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-06 10:10:07 -07:00
Richard Henderson
f7eaf9d702 accel/tcg: Do not issue misaligned i/o
In the single-page case we were issuing misaligned i/o to
the memory subsystem, which does not handle it properly.
Split such accesses via do_{ld,st}_mmio_*.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1800
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-05 18:17:17 +00:00
Richard Henderson
190aba803f accel/tcg: Issue wider aligned i/o in do_{ld,st}_mmio_*
If the address and size are aligned, send larger chunks
to the memory subsystem.  This will be required to make
more use of these helpers.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-05 18:17:17 +00:00
Richard Henderson
1966855e56 accel/tcg: Adjust parameters and locking with do_{ld,st}_mmio_*
Replace MMULookupPageData* with CPUTLBEntryFull, addr, size.
Move QEMU_IOTHREAD_LOCK_GUARD to the caller.

This simplifies the usage from do_ld16_beN and do_st16_leN, where
we weren't locking the entire operation, and required hoop jumping
for passing addr and size.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-05 18:17:17 +00:00
Richard Henderson
6db03ccc7f * fix VM build jobs on CirrusCI
* fix MMX instructions clobbering x87 state before raising #NM
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* fix VM build jobs on CirrusCI
* fix MMX instructions clobbering x87 state before raising #NM

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# gpg: Signature made Fri 04 Aug 2023 05:01:48 AM PDT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [undefined]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [undefined]
# 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: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  ci: install meson in CirrusCI KVM build environment
  target/i386: Check CR0.TS before enter_mmx

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-04 14:47:00 -07:00
Richard Henderson
71934cf6bf ppc patch queue for 2023-08-04:
This queue contains target/ppc register and VRMA fixes for 8.1. pegasos2
 fixes are also included.
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Merge tag 'pull-ppc-20230804' of https://gitlab.com/danielhb/qemu into staging

ppc patch queue for 2023-08-04:

This queue contains target/ppc register and VRMA fixes for 8.1. pegasos2
fixes are also included.

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# gpg: Good signature from "Daniel Henrique Barboza <danielhb413@gmail.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
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* tag 'pull-ppc-20230804' of https://gitlab.com/danielhb/qemu:
  target/ppc: Fix VRMA page size for ISA v3.0
  target/ppc: Fix pending HDEC when entering PM state
  target/ppc: Implement ASDR register for ISA v3.0 for HPT
  ppc/pegasos2: Fix reg property of 64 bit BARs in device tree
  ppc/pegasos2: Fix naming of device tree nodes
  ppc/pegasos2: Fix reg property of ROM BARs
  ppc/pegasos2: Fix reset state of USB functions

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-04 09:18:46 -07:00
Nicholas Piggin
0e2a3ec368 target/ppc: Fix VRMA page size for ISA v3.0
Until v2.07s, the VRMA page size (L||LP) was encoded in LPCR[VRMASD].
In v3.0 that moved to the partition table PS field.

The powernv machine can now run KVM HPT guests on POWER9/10 CPUs with
this fix and the patch to add ASDR.

Fixes: 3367c62f52 ("target/ppc: Support for POWER9 native hash")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230730111842.39292-1-npiggin@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-08-04 12:22:03 -03:00
Nicholas Piggin
9915dac484 target/ppc: Fix pending HDEC when entering PM state
HDEC is defined to not wake from PM state. There is a check in the HDEC
timer to avoid setting the interrupt if we are in a PM state, but no
check on PM entry to lower HDEC if it already fired. This can cause a
HDECR wake up and  QEMU abort with unsupported exception in Power Save
mode.

Fixes: 4b236b621b ("ppc: Initial HDEC support")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230726182230.433945-4-npiggin@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-08-04 10:50:19 -03:00
Nicholas Piggin
9201af0969 target/ppc: Implement ASDR register for ISA v3.0 for HPT
The ASDR register was introduced in ISA v3.0. It has not been
implemented for HPT. With HPT, ASDR is the format of the slbmte RS
operand (containing VSID), which matches the ppc_slb_t field.

Fixes: 3367c62f52 ("target/ppc: Support for POWER9 native hash")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230726182230.433945-2-npiggin@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-08-04 10:50:19 -03:00
BALATON Zoltan
6b6d4c1a01 ppc/pegasos2: Fix reg property of 64 bit BARs in device tree
The board firmware handles this correctly following the Open Firmware
standard which we missed. This fixes 64 bit BARs when using VOF.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-ID: <20230721221320.1311E7456AB@zero.eik.bme.hu>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-08-04 10:50:19 -03:00
BALATON Zoltan
889dd6c525 ppc/pegasos2: Fix naming of device tree nodes
The board firmware names devices by their class so match that for
common devices. Also make sure the /rtas node has a name. This is
needed because VOF otherwise does not include it in results got by
nextprop which is how AmigaOS queries it and fails if no name property
is found.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-ID: <808ade37aa141563d1ee349254151672bf7a5d59.1689725688.git.balaton@eik.bme.hu>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-08-04 10:50:19 -03:00
BALATON Zoltan
aa1133475e ppc/pegasos2: Fix reg property of ROM BARs
The register offset of the ROM BAR is 0x30 not 0x28. This fixes the
reg property entry of the ROM region in the device tree.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-ID: <6abd73b1211f9d0776dfa5d71d6294f17eecb426.1689725688.git.balaton@eik.bme.hu>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-08-04 10:50:19 -03:00
BALATON Zoltan
19ac7b29f8 ppc/pegasos2: Fix reset state of USB functions
The original non-free board firmware sets the command register of the
USB functions to 7 and some guests rely on this for working USB. Match
what the board firmware does when using VOF instead.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-ID: <06a2b864431425f23d1f2b5abf0c027819ac11c6.1689725688.git.balaton@eik.bme.hu>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2023-08-04 10:50:19 -03:00
Paolo Bonzini
d9ab1f1f4d ci: install meson in CirrusCI KVM build environment
scripts/archive-source.sh needs meson in order to download the subprojects,
therefore meson needs to be part of the host environment in which VM-based
build jobs run.

Fixes: 2019cabfee ("meson: subprojects: replace submodules with wrap files", 2023-06-06)
Reported-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-08-04 13:56:17 +02:00
Matt Borgerson
b2ea6450d8 target/i386: Check CR0.TS before enter_mmx
When CR0.TS=1, execution of x87 FPU, MMX, and some SSE instructions will
cause a Device Not Available (DNA) exception (#NM). System software uses
this exception event to lazily context switch FPU state.

Before this patch, enter_mmx helpers may be generated just before #NM
generation, prematurely resetting FPU state before the guest has a
chance to save it.

Signed-off-by: Matt Borgerson <contact@mborgerson.com>
Message-ID: <CADc=-s5F10muEhLs4f3mxqsEPAHWj0XFfOC2sfFMVHrk9fcpMg@mail.gmail.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-08-04 11:42:18 +02:00