Commit Graph

105923 Commits (3439ba9c5da943d96f7a3c86e0a7eb2ff48de41c)

Author SHA1 Message Date
Klaus Jensen 3439ba9c5d hw/nvme: fix null pointer access in ruh update
The Reclaim Unit Update operation in I/O Management Receive does not
verify the presence of a configured endurance group prior to accessing
it.

Fix this.

Cc: qemu-stable@nongnu.org
Fixes: 73064edfb8 ("hw/nvme: flexible data placement emulation")
Reviewed-by: Jesper Wendel Devantier <j.devantier@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2023-08-09 15:32:32 +02:00
Klaus Jensen 6c8f8456cb hw/nvme: fix null pointer access in directive receive
nvme_directive_receive() does not check if an endurance group has been
configured (set) prior to testing if flexible data placement is enabled
or not.

Fix this.

Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1815
Fixes: 73064edfb8 ("hw/nvme: flexible data placement emulation")
Reviewed-by: Jesper Wendel Devantier <j.devantier@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2023-08-09 15:32:32 +02:00
Richard Henderson a8fc5165aa hw/nvme fixes
- fix for invalid protection information calculation
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Merge tag 'nvme-next-pull-request' of https://gitlab.com/birkelund/qemu into staging

hw/nvme fixes

- fix for invalid protection information calculation

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# gpg: Signature made Tue 08 Aug 2023 06:34:02 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.
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#      Subkey fingerprint: 5228 33AA 75E2 DCE6 A247  66C0 4DE1 AF31 6D4F 0DE9

* tag 'nvme-next-pull-request' of https://gitlab.com/birkelund/qemu:
  docs: update hw/nvme documentation for protection information
  hw/nvme: fix CRC64 for guard tag

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-08 16:39:20 -07:00
Richard Henderson 32e07fddc6 linux-user: Adjust guest image layout vs reserved_va
linux-user: Do not adjust image mapping for host page size
 linux-user: Adjust initial brk when interpreter is close to executable
 util/selfmap: Rewrite using qemu/interval-tree.h
 linux-user: Rewrite probe_guest_base
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Merge tag 'pull-lu-20230808' of https://gitlab.com/rth7680/qemu into staging

linux-user: Adjust guest image layout vs reserved_va
linux-user: Do not adjust image mapping for host page size
linux-user: Adjust initial brk when interpreter is close to executable
util/selfmap: Rewrite using qemu/interval-tree.h
linux-user: Rewrite probe_guest_base

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# gpg: Signature made Tue 08 Aug 2023 02:07:42 PM PDT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
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# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* tag 'pull-lu-20230808' of https://gitlab.com/rth7680/qemu:
  linux-user: Rewrite non-fixed probe_guest_base
  linux-user: Rewrite fixed probe_guest_base
  linux-user: Consolidate guest bounds check in probe_guest_base
  linux-user: Remove duplicate CPU_LOG_PAGE from probe_guest_base
  util/selfmap: Rewrite using qemu/interval-tree.h
  linux-user: Use zero_bss for PT_LOAD with no file contents too
  linux-user: Do not adjust zero_bss for host page size
  linux-user: Do not adjust image mapping for host page size
  linux-user: Adjust initial brk when interpreter is close to executable
  linux-user: Use elf_et_dyn_base for ET_DYN with interpreter
  linux-user: Use MAP_FIXED_NOREPLACE for initial image mmap
  linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h
  linux-user: Define TASK_UNMAPPED_BASE in $guest/target_mman.h
  linux-user: Adjust task_unmapped_base for reserved_va

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-08 14:10:07 -07:00
Richard Henderson cef297a9d7 * cleanup architecture canonicalization once and for all
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* cleanup architecture canonicalization once and for all

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# gpg: Signature made Tue 08 Aug 2023 11:44:16 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:
  configure: unify case statements for CPU canonicalization
  linux-user: cleanup unused linux-user/include/host directories
  configure: fix detection for x32 linux-user

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-08 14:09:48 -07:00
Richard Henderson dd55885516 linux-user: Rewrite non-fixed probe_guest_base
Use pgb_addr_set to probe for all of the guest addresses,
not just the main executable.  Handle the identity map
specially and separately from the search.

If /proc/self/maps is available, utilize the full power
of the interval tree search, rather than a linear search
through the address list.

If /proc/self/maps is not available, increase the skip
between probes so that we do not probe every single page
of the host address space.  Choose 1 MiB for 32-bit hosts
(max 4k probes) and 1 GiB for 64-bit hosts (possibly a
large number of probes, but the large step makes it more
likely to find empty space quicker).

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-08 13:41:55 -07:00
Richard Henderson 06f38c6688 linux-user: Rewrite fixed probe_guest_base
Create a set of subroutines to collect a set of guest addresses,
all of which must be mappable on the host.  Use this within the
renamed pgb_fixed subroutine to validate the user's choice of
guest_base specified by the -B command-line option.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-08 13:33:22 -07:00
Richard Henderson 0c441aeb39 linux-user: Consolidate guest bounds check in probe_guest_base
The three sets of checks are identical, logically.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-08 13:27:17 -07:00
Richard Henderson 435c042fdc linux-user: Remove duplicate CPU_LOG_PAGE from probe_guest_base
The proper logging for probe_guest_base is in the main function.
There is no need to duplicate that in the subroutines.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-08 13:27:17 -07:00
Richard Henderson 3ce3dd8ca9 util/selfmap: Rewrite using qemu/interval-tree.h
We will want to be able to search the set of mappings.
For this patch, the two users iterate the tree in order.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-08-08 13:27:17 -07:00
Richard Henderson 5f4e5b3409 linux-user: Use zero_bss for PT_LOAD with no file contents too
If p_filesz == 0, then vaddr_ef == vaddr.  We can reuse the
code in zero_bss rather than incompletely duplicating it in
load_elf_image.

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 13:27:17 -07:00
Richard Henderson 2d385be615 linux-user: Do not adjust zero_bss for host page size
Rely on target_mmap to handle guest vs host page size mismatch.

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>
2023-08-08 13:27:17 -07:00
Richard Henderson e3d97d5c5d linux-user: Do not adjust image mapping for host page size
Remove TARGET_ELF_EXEC_PAGESIZE, and 3 other TARGET_ELF_PAGE* macros
based off of that.  Rely on target_mmap to handle guest vs host page
size mismatch.

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 13:27:17 -07:00
Helge Deller 1f356e8c01 linux-user: Adjust initial brk when interpreter is close to executable
While we attempt to load a ET_DYN executable far away from
TASK_UNMAPPED_BASE, we are not completely in control of the
address space layout.  If the interpreter lands close to
the executable, leaving insufficient heap space, move brk.

Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
[rth: Re-order after ELF_ET_DYN_BASE patch so that we do not
 "temporarily break" tsan, and also to minimize the changes required.
 Remove image_info.reserve_brk as unused.]
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 13:27:17 -07:00
Richard Henderson 1ea06ded0d linux-user: Use elf_et_dyn_base for ET_DYN with interpreter
Follow the lead of the linux kernel in fs/binfmt_elf.c,
in which an ET_DYN executable which uses an interpreter
(usually a PIE executable) is loaded away from where the
interpreter itself will be loaded.

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>
2023-08-08 13:27:17 -07:00
Richard Henderson ad25051bae linux-user: Use MAP_FIXED_NOREPLACE for initial image mmap
Use this as extra protection for the guest mapping over
any qemu host mappings.

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>
2023-08-08 13:27:17 -07:00
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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# gpg: Signature made Sun 06 Aug 2023 04:47:07 PM PDT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* 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