Commit Graph

102722 Commits

Author SHA1 Message Date
Philippe Mathieu-Daudé
baead64297 linux-user/sparc: Don't use 16-bit UIDs on SPARC V9
The 64-bit SPARC V9 syscall ABI uses 32-bit UIDs. Only enable
the 16-bit UID wrappers for 32-bit SPARC (V7 and V8).

Possibly missed in commit 992f48a036 ("Support for 32 bit
ABI on 64 bit targets (only enabled Sparc64)").

Reported-by: Gregor Riepl <onitake@gmail.com>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Tested-by: Zach van Rijn <me@zv.io>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1394
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20230327131910.78564-1-philmd@linaro.org>
2023-03-30 15:03:23 +02:00
Peter Maydell
f00506aeca Use a local version of GTree [#285]
Fix page_set_flags vs the last page of the address space [#1528]
 Re-enable gdbstub breakpoints under KVM
 -----BEGIN PGP SIGNATURE-----
 
 iQFRBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAmQjcLIdHHJpY2hhcmQu
 aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV8rkgf/ZazodovRKxfaO622
 mGW7ywIm+hIZYmKC7ObiMKFrBoCyeXH9yOLSx42T70QstWvBMukjovLMz1+Ttbo1
 VOvpGH2B5W76l3i+muAlKxFRbBH2kMLTaL+BXtkmkL4FJ9bS8WiPApsL3lEX/q2E
 3kqaT3N3C09sWO5oVAPGTUHL0EutKhOar2VZL0+PVPFzL3BNPhnQH9QcbNvDBV3n
 cx3GSXZyL7Plyi+qwsKf/3Jo+F2wr2NVf3Dqscu9T1N1kI5hSjRpwqUEJzJZ5rei
 ly/gBXC/J7+WN+x+w2JlN0kWXWqC0QbDfZnj96Pd3owWZ7j4sT9zR5fcNenecxlR
 38Bo0w==
 =ysF7
 -----END PGP SIGNATURE-----

Merge tag 'pull-tcg-20230328' of https://gitlab.com/rth7680/qemu into staging

Use a local version of GTree [#285]
Fix page_set_flags vs the last page of the address space [#1528]
Re-enable gdbstub breakpoints under KVM

# -----BEGIN PGP SIGNATURE-----
#
# iQFRBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAmQjcLIdHHJpY2hhcmQu
# aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV8rkgf/ZazodovRKxfaO622
# mGW7ywIm+hIZYmKC7ObiMKFrBoCyeXH9yOLSx42T70QstWvBMukjovLMz1+Ttbo1
# VOvpGH2B5W76l3i+muAlKxFRbBH2kMLTaL+BXtkmkL4FJ9bS8WiPApsL3lEX/q2E
# 3kqaT3N3C09sWO5oVAPGTUHL0EutKhOar2VZL0+PVPFzL3BNPhnQH9QcbNvDBV3n
# cx3GSXZyL7Plyi+qwsKf/3Jo+F2wr2NVf3Dqscu9T1N1kI5hSjRpwqUEJzJZ5rei
# ly/gBXC/J7+WN+x+w2JlN0kWXWqC0QbDfZnj96Pd3owWZ7j4sT9zR5fcNenecxlR
# 38Bo0w==
# =ysF7
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 28 Mar 2023 23:56:50 BST
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* tag 'pull-tcg-20230328' of https://gitlab.com/rth7680/qemu:
  softmmu: Restore use of CPU watchpoint for all accelerators
  softmmu/watchpoint: Add missing 'qemu/error-report.h' include
  softmmu: Restrict cpu_check_watchpoint / address_matches to TCG accel
  linux-user/arm: Take more care allocating commpage
  include/exec: Change reserved_va semantics to last byte
  linux-user: Pass last not end to probe_guest_base
  accel/tcg: Pass last not end to tb_invalidate_phys_range
  accel/tcg: Pass last not end to tb_invalidate_phys_page_range__locked
  accel/tcg: Pass last not end to page_collection_lock
  accel/tcg: Pass last not end to PAGE_FOR_EACH_TB
  accel/tcg: Pass last not end to page_reset_target_data
  accel/tcg: Pass last not end to page_set_flags
  linux-user: Diagnose misaligned -R size
  tcg: use QTree instead of GTree
  util: import GTree as QTree

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-29 11:19:19 +01:00
Philippe Mathieu-Daudé
87e303de70 softmmu: Restore use of CPU watchpoint for all accelerators
CPU watchpoints can be use by non-TCG accelerators.

KVM uses them:

  $ git grep CPUWatchpoint|fgrep kvm
  target/arm/kvm64.c:1558:        CPUWatchpoint *wp = find_hw_watchpoint(cs, debug_exit->far);
  target/i386/kvm/kvm.c:5216:static CPUWatchpoint hw_watchpoint;
  target/ppc/kvm.c:443:static CPUWatchpoint hw_watchpoint;
  target/s390x/kvm/kvm.c:139:static CPUWatchpoint hw_watchpoint;

See for example commit e4482ab7e3 ("target-arm: kvm - add support
for HW assisted debug"):

     This adds basic support for HW assisted debug. The ioctl interface
     to KVM allows us to pass an implementation defined number of break
     and watch point registers. [...]

This partially reverts commit 2609ec2868.

Fixes: 2609ec2868 ("softmmu: Extract watchpoint API from physmem.c")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230328173117.15226-4-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:24:06 -07:00
Philippe Mathieu-Daudé
a085860834 softmmu/watchpoint: Add missing 'qemu/error-report.h' include
cpu_watchpoint_insert() calls error_report() which is declared
in "qemu/error-report.h". When moving this code in commit 2609ec2868
("softmmu: Extract watchpoint API from physmem.c") we neglected to
include this header. This works so far because it is indirectly
included by TCG headers -> "qemu/plugin.h" -> "qemu/error-report.h".

Currently cpu_watchpoint_insert() is only built with the TCG
accelerator. When building it with other ones (or without TCG)
we get:

  softmmu/watchpoint.c:38:9: error: implicit declaration of function 'error_report' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
        error_report("tried to set invalid watchpoint at %"
        ^

Include "qemu/error-report.h" in order to fix this for non-TCG
builds.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230328173117.15226-3-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:24:06 -07:00
Philippe Mathieu-Daudé
6eece7f531 softmmu: Restrict cpu_check_watchpoint / address_matches to TCG accel
Both cpu_check_watchpoint() and cpu_watchpoint_address_matches()
are specific to TCG system emulation. Declare them in "tcg-cpu-ops.h"
to be sure accessing them from non-TCG code is a compilation error.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230328173117.15226-2-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:24:06 -07:00
Richard Henderson
4f5c67f8df linux-user/arm: Take more care allocating commpage
User setting of -R reserved_va can lead to an assertion
failure in page_set_flags.  Sanity check the value of
reserved_va and print an error message instead.  Do not
allocate a commpage at all for m-profile cpus.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:23:10 -07:00
Richard Henderson
95059f9c31 include/exec: Change reserved_va semantics to last byte
Change the semantics to be the last byte of the guest va, rather
than the following byte.  This avoids some overflow conditions.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:23:10 -07:00
Richard Henderson
a3a67f54f0 linux-user: Pass last not end to probe_guest_base
Pass the address of the last byte of the image, rather than
the first address past the last byte.  This avoids overflow
when the last page of the address space is involved.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:23:10 -07:00
Richard Henderson
e506ad6a05 accel/tcg: Pass last not end to tb_invalidate_phys_range
Pass the address of the last byte to be changed, rather than
the first address past the last byte.  This avoids overflow
when the last page of the address space is involved.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:23:10 -07:00
Richard Henderson
73f96d51ff accel/tcg: Pass last not end to tb_invalidate_phys_page_range__locked
Pass the address of the last byte to be changed, rather than
the first address past the last byte.  This avoids overflow
when the last page of the address space is involved.

Properly truncate tb_last to the end of the page; the comment about
tb_end being past the end of the page being ok is not correct,
considering overflow.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:23:10 -07:00
Richard Henderson
f6555e3f39 accel/tcg: Pass last not end to page_collection_lock
Pass the address of the last byte to be changed, rather than
the first address past the last byte.  This avoids overflow
when the last page of the address space is involved.

Fixes a bug in the loop comparision where "<= end" would lock
one more page than required.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:23:10 -07:00
Richard Henderson
f7e2add5fd accel/tcg: Pass last not end to PAGE_FOR_EACH_TB
Pass the address of the last byte to be changed, rather than
the first address past the last byte.  This avoids overflow
when the last page of the address space is involved.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:23:10 -07:00
Richard Henderson
10310cbd62 accel/tcg: Pass last not end to page_reset_target_data
Pass the address of the last byte to be changed, rather than
the first address past the last byte.  This avoids overflow
when the last page of the address space is involved.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:23:10 -07:00
Richard Henderson
49840a4a09 accel/tcg: Pass last not end to page_set_flags
Pass the address of the last byte to be changed, rather than
the first address past the last byte.  This avoids overflow
when the last page of the address space is involved.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1528
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:23:10 -07:00
Richard Henderson
2f7828b572 linux-user: Diagnose misaligned -R size
We have been enforcing host page alignment for the non-R
fallback of MAX_RESERVED_VA, but failing to enforce for -R.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:23:10 -07:00
Emilio Cota
1ff4a81bd3 tcg: use QTree instead of GTree
qemu-user can hang in a multi-threaded fork. One common
reason is that when creating a TB, between fork and exec
we manipulate a GTree whose memory allocator (GSlice) is
not fork-safe.

Although POSIX does not mandate it, the system's allocator
(e.g. tcmalloc, libc malloc) is probably fork-safe.

Fix some of these hangs by using QTree, which uses the system's
allocator regardless of the Glib version that we used at
configuration time.

Tested with the test program in the original bug report, i.e.:
```

void garble() {
  int pid = fork();
  if (pid == 0) {
    exit(0);
  } else {
    int wstatus;
    waitpid(pid, &wstatus, 0);
  }
}

void supragarble(unsigned depth) {
  if (depth == 0)
    return ;

  std::thread a(supragarble, depth-1);
  std::thread b(supragarble, depth-1);
  garble();
  a.join();
  b.join();
}

int main() {
  supragarble(10);
}
```

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/285
Reported-by: Valentin David <me@valentindavid.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Emilio Cota <cota@braap.org>
Message-Id: <20230205163758.416992-3-cota@braap.org>
[rth: Add QEMU_DISABLE_CFI for all callback using functions.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:23:10 -07:00
Emilio Cota
e3feb2cc22 util: import GTree as QTree
The only reason to add this implementation is to control the memory allocator
used. Some users (e.g. TCG) cannot work reliably in multi-threaded
environments (e.g. forking in user-mode) with GTree's allocator, GSlice.
See https://gitlab.com/qemu-project/qemu/-/issues/285 for details.

Importing GTree is a temporary workaround until GTree migrates away
from GSlice.

This implementation is identical to that in glib v2.75.0, except that
we don't import recent additions to the API nor deprecated API calls,
none of which are used in QEMU.

I've imported tests from glib and added a benchmark just to
make sure that performance is similar. Note: it cannot be identical
because (1) we are not using GSlice, (2) we use different compilation flags
(e.g. -fPIC) and (3) we're linking statically.

$ cat /proc/cpuinfo| grep 'model name' | head -1
model name      : AMD Ryzen 7 PRO 5850U with Radeon Graphics
$ echo '0' | sudo tee /sys/devices/system/cpu/cpufreq/boost
$ tests/bench/qtree-bench

 Tree         Op      32            1024            4096          131072         1048576
------------------------------------------------------------------------------------------------
GTree     Lookup   83.23           43.08           25.31           19.40           16.22
QTree     Lookup  113.42 (1.36x)   53.83 (1.25x)   28.38 (1.12x)   17.64 (0.91x)   13.04 (0.80x)
GTree     Insert   44.23           29.37           25.83           19.49           17.03
QTree     Insert   46.87 (1.06x)   25.62 (0.87x)   24.29 (0.94x)   16.83 (0.86x)   12.97 (0.76x)
GTree     Remove   53.27           35.15           31.43           24.64           16.70
QTree     Remove   57.32 (1.08x)   41.76 (1.19x)   38.37 (1.22x)   29.30 (1.19x)   15.07 (0.90x)
GTree  RemoveAll  135.44          127.52          126.72          120.11           64.34
QTree  RemoveAll  127.15 (0.94x)  110.37 (0.87x)  107.97 (0.85x)   97.13 (0.81x)   55.10 (0.86x)
GTree   Traverse  277.71          276.09          272.78          246.72           98.47
QTree   Traverse  370.33 (1.33x)  411.97 (1.49x)  400.23 (1.47x)  262.82 (1.07x)   78.52 (0.80x)
------------------------------------------------------------------------------------------------

As a sanity check, the same benchmark when Glib's version
is >= $glib_dropped_gslice_version (i.e. QTree == GTree):

 Tree         Op      32            1024            4096          131072         1048576
------------------------------------------------------------------------------------------------
GTree     Lookup   82.72           43.09           24.18           19.73           16.09
QTree     Lookup   81.82 (0.99x)   43.10 (1.00x)   24.20 (1.00x)   19.76 (1.00x)   16.26 (1.01x)
GTree     Insert   45.07           29.62           26.34           19.90           17.18
QTree     Insert   45.72 (1.01x)   29.60 (1.00x)   26.38 (1.00x)   19.71 (0.99x)   17.20 (1.00x)
GTree     Remove   54.48           35.36           31.77           24.97           16.95
QTree     Remove   54.46 (1.00x)   35.32 (1.00x)   31.77 (1.00x)   24.91 (1.00x)   17.15 (1.01x)
GTree  RemoveAll  140.68          127.36          125.43          121.45           68.20
QTree  RemoveAll  140.65 (1.00x)  127.64 (1.00x)  125.01 (1.00x)  121.73 (1.00x)   67.06 (0.98x)
GTree   Traverse  278.68          276.05          266.75          251.65          104.93
QTree   Traverse  278.31 (1.00x)  275.78 (1.00x)  266.42 (1.00x)  247.89 (0.99x)  104.58 (1.00x)
------------------------------------------------------------------------------------------------

Signed-off-by: Emilio Cota <cota@braap.org>
Message-Id: <20230205163758.416992-2-cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-28 15:23:10 -07:00
Peter Maydell
d37158bb24 Update version for v8.0.0-rc2 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-28 20:43:21 +01:00
Peter Maydell
3b555b5115 Block layer patches
- aio-posix: Fix race during epoll upgrade
 - vhost-user-blk/VDUSE export: Fix a potential deadlock and an assertion
   failure when the export runs in an iothread
 - NBD server: Push pending frames after sending reply to fix performance
   especially when used with TLS
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEE3D3rFZqa+V09dFb+fwmycsiPL9YFAmQi3s4RHGt3b2xmQHJl
 ZGhhdC5jb20ACgkQfwmycsiPL9Yz7hAAq9UVPOfr8SF5WjxuZBNifYI13uazp9cG
 UdDC4Be2zNSkw9WGb+thHHjvqyQ49tAmT70bTocNk8VEAjAJ5J4VrCOlyz7pcy2w
 PdJf1RxaUSEV4Fl5lThrUeOv5sX3hSm/Z8X9WLYLjYxOGJOpITkQ0eM7PDwwsiPd
 hXLOAWabcJbx/m2HQphUG5ZoC2omgfY2ICrlr4Bvziak63cT+ZTVfKTvVebtEZ9B
 zn+BfrzDra/rkLJEM9JfgQXjYo3Cxrv5MjYzDpeRCHPwnseZnlbHlE3nrHWYDuLW
 fsd6RpsoOW6mHEx4aO6xLAVu+iIfouVOjV5ZWRvcKw5UyiejW/DkduppERMbWx/y
 Wfq95O/4UjFop3fw+UGGdHtASjnUJM35QR9wo+bM2vS219DLTJ/7mKOhBDajHQy4
 3ynk39uEnkRyLrKUMvR9qZ7t7pvumXEEA5qtPGJwnvOXm9shlKrJ8f3TzUGBKpQS
 KPYEAJPO/HmyvswsfTmC7Yy5uh2o67nsMdDy7HEq0MZW5+pBpAML+zv4qyQKtDsg
 GzoIL+zd09Yyh+wK9+NPzX9p7DZus7NRlig9byGCpD48gqzeABL6CQotNlm93pgj
 eybiMStrCPIOt8AZM5j8yxh1RBiM2L7sZeTBaFXyQiwrlYOW4xGybivzcwQAEFGN
 iKRB0fttcQE=
 =+vQj
 -----END PGP SIGNATURE-----

Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging

Block layer patches

- aio-posix: Fix race during epoll upgrade
- vhost-user-blk/VDUSE export: Fix a potential deadlock and an assertion
  failure when the export runs in an iothread
- NBD server: Push pending frames after sending reply to fix performance
  especially when used with TLS

# -----BEGIN PGP SIGNATURE-----
#
# iQJFBAABCAAvFiEE3D3rFZqa+V09dFb+fwmycsiPL9YFAmQi3s4RHGt3b2xmQHJl
# ZGhhdC5jb20ACgkQfwmycsiPL9Yz7hAAq9UVPOfr8SF5WjxuZBNifYI13uazp9cG
# UdDC4Be2zNSkw9WGb+thHHjvqyQ49tAmT70bTocNk8VEAjAJ5J4VrCOlyz7pcy2w
# PdJf1RxaUSEV4Fl5lThrUeOv5sX3hSm/Z8X9WLYLjYxOGJOpITkQ0eM7PDwwsiPd
# hXLOAWabcJbx/m2HQphUG5ZoC2omgfY2ICrlr4Bvziak63cT+ZTVfKTvVebtEZ9B
# zn+BfrzDra/rkLJEM9JfgQXjYo3Cxrv5MjYzDpeRCHPwnseZnlbHlE3nrHWYDuLW
# fsd6RpsoOW6mHEx4aO6xLAVu+iIfouVOjV5ZWRvcKw5UyiejW/DkduppERMbWx/y
# Wfq95O/4UjFop3fw+UGGdHtASjnUJM35QR9wo+bM2vS219DLTJ/7mKOhBDajHQy4
# 3ynk39uEnkRyLrKUMvR9qZ7t7pvumXEEA5qtPGJwnvOXm9shlKrJ8f3TzUGBKpQS
# KPYEAJPO/HmyvswsfTmC7Yy5uh2o67nsMdDy7HEq0MZW5+pBpAML+zv4qyQKtDsg
# GzoIL+zd09Yyh+wK9+NPzX9p7DZus7NRlig9byGCpD48gqzeABL6CQotNlm93pgj
# eybiMStrCPIOt8AZM5j8yxh1RBiM2L7sZeTBaFXyQiwrlYOW4xGybivzcwQAEFGN
# iKRB0fttcQE=
# =+vQj
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 28 Mar 2023 13:34:22 BST
# gpg:                using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg:                issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* tag 'for-upstream' of https://repo.or.cz/qemu/kevin:
  block/export: Fix graph locking in blk_get_geometry() call
  aio-posix: fix race between epoll upgrade and aio_set_fd_handler()
  block/export: only acquire AioContext once for vhost_user_server_stop()
  nbd/server: push pending frames after sending reply

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-28 17:01:29 +01:00
Peter Maydell
eeb2f7e357 target-arm queue:
* fix part of the "TCG-disabled builds are broken" issue
 -----BEGIN PGP SIGNATURE-----
 
 iQJNBAABCAA3FiEE4aXFk81BneKOgxXPPCUl7RQ2DN4FAmQi3NcZHHBldGVyLm1h
 eWRlbGxAbGluYXJvLm9yZwAKCRA8JSXtFDYM3u86D/9jNLtnDhV2V9znSOIudnQn
 Djb6B+YZEQyHoTGP7fkoY48Et1YlpwMPLb+B+d3PR5q2Nm9z3H6dmuOs5qaoJp1D
 afn+TeRS0rQKKc+/bCR5yIwkzGAKqqnEPf6v7MubHTePvWrSP4gQWjr4xHoWE9H1
 sIHrCSutYPwOkSYGCOwoOrJxMPeQmV+CtNunyGl/0PtVOQSsAO4oETf9KfPykdMP
 dFfHrzVSOVkBnjtejsPxKZMIi06hQgiHItfmWvIWz34N8nues1r2b5GOfzDIGfd4
 O89r4N8OQghOUamh5TGiaXHy2D/75cHYCFp9vG7ur8hKk5XpCLNpzSinRYaXvxeQ
 azwO0rVa+Kf9EyroQnnPfDcWzubuGli0pbC7FzZrv7lOH1fEttDasCWZ+dvccqOd
 NqMl2VipAdcSS/SkPJ8chTAVkhocCdnwjxk04IKphubW1VoU4yVdowf9LK/i2hJQ
 SmozX1cUL8l0OCr4XSSB3I5OcBzihZnHhC60zS4b6uZ1v2/Cg5iulm95kmTiD/9Q
 ryCnwANADFf/exFYsWmxxzrSfJSTz79qXDg1tpedDeYgWrojgYBrodpzwt3ywTZu
 dAiDJzRE6KPekRU6tYZ+TPGsS8D9g5XxBG/fxSoW5IslBmsPpqZng4xLw9ckeJWG
 GTh78UIyXV8xQeCFno6Kgw==
 =lMnC
 -----END PGP SIGNATURE-----

Merge tag 'pull-target-arm-20230328' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * fix part of the "TCG-disabled builds are broken" issue

# -----BEGIN PGP SIGNATURE-----
#
# iQJNBAABCAA3FiEE4aXFk81BneKOgxXPPCUl7RQ2DN4FAmQi3NcZHHBldGVyLm1h
# eWRlbGxAbGluYXJvLm9yZwAKCRA8JSXtFDYM3u86D/9jNLtnDhV2V9znSOIudnQn
# Djb6B+YZEQyHoTGP7fkoY48Et1YlpwMPLb+B+d3PR5q2Nm9z3H6dmuOs5qaoJp1D
# afn+TeRS0rQKKc+/bCR5yIwkzGAKqqnEPf6v7MubHTePvWrSP4gQWjr4xHoWE9H1
# sIHrCSutYPwOkSYGCOwoOrJxMPeQmV+CtNunyGl/0PtVOQSsAO4oETf9KfPykdMP
# dFfHrzVSOVkBnjtejsPxKZMIi06hQgiHItfmWvIWz34N8nues1r2b5GOfzDIGfd4
# O89r4N8OQghOUamh5TGiaXHy2D/75cHYCFp9vG7ur8hKk5XpCLNpzSinRYaXvxeQ
# azwO0rVa+Kf9EyroQnnPfDcWzubuGli0pbC7FzZrv7lOH1fEttDasCWZ+dvccqOd
# NqMl2VipAdcSS/SkPJ8chTAVkhocCdnwjxk04IKphubW1VoU4yVdowf9LK/i2hJQ
# SmozX1cUL8l0OCr4XSSB3I5OcBzihZnHhC60zS4b6uZ1v2/Cg5iulm95kmTiD/9Q
# ryCnwANADFf/exFYsWmxxzrSfJSTz79qXDg1tpedDeYgWrojgYBrodpzwt3ywTZu
# dAiDJzRE6KPekRU6tYZ+TPGsS8D9g5XxBG/fxSoW5IslBmsPpqZng4xLw9ckeJWG
# GTh78UIyXV8xQeCFno6Kgw==
# =lMnC
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 28 Mar 2023 13:25:59 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20230328' of https://git.linaro.org/people/pmaydell/qemu-arm:
  target/arm/gdbstub: Only advertise M-profile features if TCG available

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-28 13:27:04 +01:00
Peter Maydell
52dd5f6f70 -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
 
 iQEcBAABAgAGBQJkIncaAAoJEO8Ells5jWIR6bgH/icQAN1a0PBHh2lujmob8KvE
 IZ0KYuJMDcA8HFdhnzxPPKj7/77AM1DgmrmVwqLKTr6j64CZYr2Uc0yeyPa0f/0Y
 TtePW70bjoUkRm/dDdFe32xViO4O33pGQia6olR6QwmfdDbBBJjAucmlep8NClrh
 EooQ2WfXPBqrC6ckKZ7vEvgKV2sDl2XxYIr3kU3MiB4j4b1lrGHE+XSv7cXOC+at
 G2vYqbimipZstHZCJYeB5tRz+FXbAI3ZNCGtYpxeVyabrlHS+n+X+gttaswcvVIF
 ln6yidVGg/Ot3bi0qiV1WihpqNCWO0ghhf7wIEubAIIJlnE5hXULF4uFVfz+rRE=
 =HjJv
 -----END PGP SIGNATURE-----

Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging

# -----BEGIN PGP SIGNATURE-----
# Version: GnuPG v1
#
# iQEcBAABAgAGBQJkIncaAAoJEO8Ells5jWIR6bgH/icQAN1a0PBHh2lujmob8KvE
# IZ0KYuJMDcA8HFdhnzxPPKj7/77AM1DgmrmVwqLKTr6j64CZYr2Uc0yeyPa0f/0Y
# TtePW70bjoUkRm/dDdFe32xViO4O33pGQia6olR6QwmfdDbBBJjAucmlep8NClrh
# EooQ2WfXPBqrC6ckKZ7vEvgKV2sDl2XxYIr3kU3MiB4j4b1lrGHE+XSv7cXOC+at
# G2vYqbimipZstHZCJYeB5tRz+FXbAI3ZNCGtYpxeVyabrlHS+n+X+gttaswcvVIF
# ln6yidVGg/Ot3bi0qiV1WihpqNCWO0ghhf7wIEubAIIJlnE5hXULF4uFVfz+rRE=
# =HjJv
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 28 Mar 2023 06:11:54 BST
# gpg:                using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* tag 'net-pull-request' of https://github.com/jasowang/qemu:
  igb: respect VMVIR and VMOLR for VLAN
  igb: implement VF Tx and Rx stats
  igb: respect E1000_VMOLR_RSSE
  igb: check oversized packets for VMDq
  igb: implement VFRE and VFTE registers
  igb: add ICR_RXDW
  igb: handle PF/VF reset properly
  MAINTAINERS: Add Sriram Yagnaraman as a igb reviewer
  hw/net/net_tx_pkt: Align l3_hdr
  hw/net/net_tx_pkt: Ignore ECN bit
  igb: Fix DMA requester specification for Tx packet
  igb: Save more Tx states

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-28 13:26:49 +01:00
Peter Maydell
ecaefc8f50 hw/nvme fixes
-----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEUigzqnXi3OaiR2bATeGvMW1PDekFAmQhzX8ACgkQTeGvMW1P
 DekD4gf9GhPfYxpltYI4KmjfPotY0fIZQ/33jZtjJXdKpzmCCAknuCZdoI1yM5X7
 I9EiP3I6hfMyzUe58K8Gi8v8Vy9/UUtKjWGpYoWiLol01IkqqvsBNZC8KGQpUDfX
 cYXI13XAutHxKbH9sp10OvMEI1jBGHBvzEAtUHhFYxX0jazt68PJVL01YhCMIsQo
 4KQOes8Bxxroh/0c7/zbMdVFfDxj/Vtm3dpj9PLRlc9lqhkzh2gpiY4tI4RA85KR
 4Ceq8+ihhbXn81CrLMpx2JqOcp+GNhJDQ8VekfbIsoT3DY5PN7G4p7FaIUxhba9k
 VoB4U1cbjdMk3sohPXVhsLrwpixf1w==
 =WdhG
 -----END PGP SIGNATURE-----

Merge tag 'nvme-next-pull-request' of https://gitlab.com/birkelund/qemu into staging

hw/nvme fixes

# -----BEGIN PGP SIGNATURE-----
#
# iQEzBAABCgAdFiEEUigzqnXi3OaiR2bATeGvMW1PDekFAmQhzX8ACgkQTeGvMW1P
# DekD4gf9GhPfYxpltYI4KmjfPotY0fIZQ/33jZtjJXdKpzmCCAknuCZdoI1yM5X7
# I9EiP3I6hfMyzUe58K8Gi8v8Vy9/UUtKjWGpYoWiLol01IkqqvsBNZC8KGQpUDfX
# cYXI13XAutHxKbH9sp10OvMEI1jBGHBvzEAtUHhFYxX0jazt68PJVL01YhCMIsQo
# 4KQOes8Bxxroh/0c7/zbMdVFfDxj/Vtm3dpj9PLRlc9lqhkzh2gpiY4tI4RA85KR
# 4Ceq8+ihhbXn81CrLMpx2JqOcp+GNhJDQ8VekfbIsoT3DY5PN7G4p7FaIUxhba9k
# VoB4U1cbjdMk3sohPXVhsLrwpixf1w==
# =WdhG
# -----END PGP SIGNATURE-----
# gpg: Signature made Mon 27 Mar 2023 18:08:15 BST
# gpg:                using RSA key 522833AA75E2DCE6A24766C04DE1AF316D4F0DE9
# gpg: Good signature from "Klaus Jensen <its@irrelevant.dk>" [full]
# gpg:                 aka "Klaus Jensen <k.jensen@samsung.com>" [full]
# 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 missing DNR on compare failure
  hw/nvme: Change alignment in dma functions for nvme_blk_*

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-28 11:21:39 +01:00
Philippe Mathieu-Daudé
46e3b237c5 target/arm/gdbstub: Only advertise M-profile features if TCG available
Cortex-M profile is only emulable from TCG accelerator. Restrict
the GDBstub features to its availability in order to avoid a link
error when TCG is not enabled:

  Undefined symbols for architecture arm64:
    "_arm_v7m_get_sp_ptr", referenced from:
        _m_sysreg_get in target_arm_gdbstub.c.o
    "_arm_v7m_mrs_control", referenced from:
        _arm_gdb_get_m_systemreg in target_arm_gdbstub.c.o
  ld: symbol(s) not found for architecture arm64
  clang: error: linker command failed with exit code 1 (use -v to see invocation)

Fixes: 7d8b28b8b5 ("target/arm: Implement gdbstub m-profile systemreg and secext")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20230322142902.69511-3-philmd@linaro.org
[PMM: add #include since I cherry-picked this patch from the series]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-28 10:53:40 +01:00
Sriram Yagnaraman
fba7c3b788 igb: respect VMVIR and VMOLR for VLAN
Add support for stripping/inserting VLAN for VFs.

Had to move CSUM calculation back into the for loop, since packet data
is pulled inside the loop based on strip VLAN decision for every VF.

net_rx_pkt_fix_l4_csum should be extended to accept a buffer instead for
igb. Work for a future patch.

Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28 13:10:55 +08:00
Sriram Yagnaraman
7581baed88 igb: implement VF Tx and Rx stats
Please note that loopback counters for VM to VM traffic is not
implemented yet: VFGOTLBC, VFGPTLBC, VFGORLBC and VFGPRLBC.

Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28 13:10:55 +08:00
Sriram Yagnaraman
3c2e0a6853 igb: respect E1000_VMOLR_RSSE
RSS for VFs is only enabled if VMOLR[n].RSSE is set.

Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28 13:10:55 +08:00
Sriram Yagnaraman
5f12d70304 igb: check oversized packets for VMDq
Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28 13:10:55 +08:00
Sriram Yagnaraman
3269ebb3e0 igb: implement VFRE and VFTE registers
Also introduce:
- Checks for RXDCTL/TXDCTL queue enable bits
- IGB_NUM_VM_POOLS enum (Sec 1.5: Table 1-7)

Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28 13:10:55 +08:00
Sriram Yagnaraman
1c1e649761 igb: add ICR_RXDW
IGB uses RXDW ICR bit to indicate that rx descriptor has been written
back. This is the same as RXT0 bit in older HW.

Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28 13:10:55 +08:00
Sriram Yagnaraman
2e68546a43 igb: handle PF/VF reset properly
Use PFRSTD to reset RSTI bit for VFs, and raise VFLRE interrupt when VF
is reset.

Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28 13:10:55 +08:00
Sriram Yagnaraman
e860ef1568 MAINTAINERS: Add Sriram Yagnaraman as a igb reviewer
I would like to review and be informed on changes to igb device

Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28 13:10:55 +08:00
Akihiko Odaki
2a5f744ef2 hw/net/net_tx_pkt: Align l3_hdr
Align the l3_hdr member of NetTxPkt by defining it as a union of
ip_header, ip6_header, and an array of octets.

Fixes: e263cd49c7 ("Packet abstraction for VMWARE network devices")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1544
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28 13:10:55 +08:00
Akihiko Odaki
4cf3a63849 hw/net/net_tx_pkt: Ignore ECN bit
No segmentation should be performed if gso type is
VIRTIO_NET_HDR_GSO_NONE even if ECN bit is set.

Fixes: e263cd49c7 ("Packet abstraction for VMWARE network devices")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1544
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28 13:10:55 +08:00
Akihiko Odaki
f4fdaf009c igb: Fix DMA requester specification for Tx packet
igb used to specify the PF as DMA requester when reading Tx packets.
This made Tx requests from VFs to be performed on the address space of
the PF, defeating the purpose of SR-IOV. Add some logic to change the
requester depending on the queue, which can be assigned to a VF.

Fixes: 3a977deebe ("Intrdocue igb device emulation")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28 13:10:55 +08:00
Akihiko Odaki
212f7b1dac igb: Save more Tx states
The current implementation of igb uses only part of a advanced Tx
context descriptor and first data descriptor because it misses some
features and sniffs the trait of the packet instead of respecting the
packet type specified in the descriptor. However, we will certainly
need the entire Tx context descriptor when we update igb to respect
these ignored fields. Save the entire context descriptor and first
data descriptor except the buffer address to prepare for such a change.

This also introduces the distinction of contexts with different
indexes, which was not present in e1000e but in igb.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28 13:10:55 +08:00
Klaus Jensen
ca2a091802 hw/nvme: fix missing DNR on compare failure
Even if the host is somehow using compare to do compare-and-write, the
host should be notified immediately about the compare failure and not
have to wait for the driver to potentially retry the command.

Fixes: 0a384f923f ("hw/block/nvme: add compare command")
Reported-by: Jim Harris <james.r.harris@intel.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2023-03-27 19:05:23 +02:00
Mateusz Kozlowski
9b4f01812f hw/nvme: Change alignment in dma functions for nvme_blk_*
Since the nvme_blk_read/write are used by both the data and metadata
portions of the IO, it can't have the 512B alignment requirement.
Without this change any metadata transfer, which length isn't a multiple
of 512B and which is bigger than 512B, will result in only a partial
transfer.

Signed-off-by: Mateusz Kozlowski <kozlowski.mateuszpl@gmail.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2023-03-27 17:48:08 +02:00
Kevin Wolf
d8fbf9aa85 block/export: Fix graph locking in blk_get_geometry() call
blk_get_geometry() eventually calls bdrv_nb_sectors(), which is a
co_wrapper_mixed_bdrv_rdlock. This means that when it is called from
coroutine context, it already assume to have the graph locked.

However, virtio_blk_sect_range_ok() in block/export/virtio-blk-handler.c
(used by vhost-user-blk and VDUSE exports) runs in a coroutine, but
doesn't take the graph lock - blk_*() functions are generally expected
to do that internally. This causes an assertion failure when accessing
an export for the first time if it runs in an iothread.

This is an example of the crash:

  $ ./storage-daemon/qemu-storage-daemon --object iothread,id=th0 --blockdev file,filename=/home/kwolf/images/hd.img,node-name=disk --export vhost-user-blk,addr.type=unix,addr.path=/tmp/vhost.sock,node-name=disk,id=exp0,iothread=th0
  qemu-storage-daemon: ../block/graph-lock.c:268: void assert_bdrv_graph_readable(void): Assertion `qemu_in_main_thread() || reader_count()' failed.

  (gdb) bt
  #0  0x00007ffff6eafe5c in __pthread_kill_implementation () from /lib64/libc.so.6
  #1  0x00007ffff6e5fa76 in raise () from /lib64/libc.so.6
  #2  0x00007ffff6e497fc in abort () from /lib64/libc.so.6
  #3  0x00007ffff6e4971b in __assert_fail_base.cold () from /lib64/libc.so.6
  #4  0x00007ffff6e58656 in __assert_fail () from /lib64/libc.so.6
  #5  0x00005555556337a3 in assert_bdrv_graph_readable () at ../block/graph-lock.c:268
  #6  0x00005555555fd5a2 in bdrv_co_nb_sectors (bs=0x5555564c5ef0) at ../block.c:5847
  #7  0x00005555555ee949 in bdrv_nb_sectors (bs=0x5555564c5ef0) at block/block-gen.c:256
  #8  0x00005555555fd6b9 in bdrv_get_geometry (bs=0x5555564c5ef0, nb_sectors_ptr=0x7fffef7fedd0) at ../block.c:5884
  #9  0x000055555562ad6d in blk_get_geometry (blk=0x5555564cb200, nb_sectors_ptr=0x7fffef7fedd0) at ../block/block-backend.c:1624
  #10 0x00005555555ddb74 in virtio_blk_sect_range_ok (blk=0x5555564cb200, block_size=512, sector=0, size=512) at ../block/export/virtio-blk-handler.c:44
  #11 0x00005555555dd80d in virtio_blk_process_req (handler=0x5555564cbb98, in_iov=0x7fffe8003830, out_iov=0x7fffe8003860, in_num=1, out_num=0) at ../block/export/virtio-blk-handler.c:189
  #12 0x00005555555dd546 in vu_blk_virtio_process_req (opaque=0x7fffe8003800) at ../block/export/vhost-user-blk-server.c:66
  #13 0x00005555557bf4a1 in coroutine_trampoline (i0=-402635264, i1=32767) at ../util/coroutine-ucontext.c:177
  #14 0x00007ffff6e75c20 in ?? () from /lib64/libc.so.6
  #15 0x00007fffefffa870 in ?? ()
  #16 0x0000000000000000 in ?? ()

Fix this by creating a new blk_co_get_geometry() that takes the lock,
and changing blk_get_geometry() to be a co_wrapper_mixed around it.

To make the resulting code cleaner, virtio-blk-handler.c can directly
call the coroutine version now (though that wouldn't be necessary for
fixing the bug, taking the lock in blk_co_get_geometry() is what fixes
it).

Fixes: 8ab8140a04
Reported-by: Lukáš Doktor <ldoktor@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230327113959.60071-1-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-03-27 15:16:05 +02:00
Stefan Hajnoczi
e62da98527 aio-posix: fix race between epoll upgrade and aio_set_fd_handler()
If another thread calls aio_set_fd_handler() while the IOThread event
loop is upgrading from ppoll(2) to epoll(7) then we might miss new
AioHandlers. The epollfd will not monitor the new AioHandler's fd,
resulting in hangs.

Take the AioHandler list lock while upgrading to epoll. This prevents
AioHandlers from changing while epoll is being set up. If we cannot lock
because we're in a nested event loop, then don't upgrade to epoll (it
will happen next time we're not in a nested call).

The downside to taking the lock is that the aio_set_fd_handler() thread
has to wait until the epoll upgrade is finished, which involves many
epoll_ctl(2) system calls. However, this scenario is rare and I couldn't
think of another solution that is still simple.

Reported-by: Qing Wang <qinwang@redhat.com>
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2090998
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Fam Zheng <fam@euphon.net>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230323144859.1338495-1-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-03-27 15:12:17 +02:00
Stefan Hajnoczi
2957dc40a2 block/export: only acquire AioContext once for vhost_user_server_stop()
vhost_user_server_stop() uses AIO_WAIT_WHILE(). AIO_WAIT_WHILE()
requires that AioContext is only acquired once.

Since blk_exp_request_shutdown() already acquires the AioContext it
shouldn't be acquired again in vhost_user_server_stop().

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230323145853.1345527-1-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-03-27 13:46:30 +02:00
Florian Westphal
bd2cd4a441 nbd/server: push pending frames after sending reply
qemu-nbd doesn't set TCP_NODELAY on the tcp socket.

Kernel waits for more data and avoids transmission of small packets.
Without TLS this is barely noticeable, but with TLS this really shows.

Booting a VM via qemu-nbd on localhost (with tls) takes more than
2 minutes on my system.  tcpdump shows frequent wait periods, where no
packets get sent for a 40ms period.

Add explicit (un)corking when processing (and responding to) requests.
"TCP_CORK, &zero" after earlier "CORK, &one" will flush pending data.

VM Boot time:
main:    no tls:  23s, with tls: 2m45s
patched: no tls:  14s, with tls: 15s

VM Boot time, qemu-nbd via network (same lan):
main:    no tls:  18s, with tls: 1m50s
patched: no tls:  17s, with tls: 18s

Future optimization: if we could detect if there is another pending
request we could defer the uncork operation because more data would be
appended.

Signed-off-by: Florian Westphal <fw@strlen.de>
Message-Id: <20230324104720.2498-1-fw@strlen.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-03-27 13:44:29 +02:00
Peter Maydell
e3debd5e7d * Remove TABs in hw/ide and hw/block
* Two fixes for GCC 13
 * MSYS2 CI job improvements
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEEJ7iIR+7gJQEY8+q5LtnXdP5wLbUFAmQdwwkRHHRodXRoQHJl
 ZGhhdC5jb20ACgkQLtnXdP5wLbXnWg//TcpLes6b30dTFJ3NwTYaL+ElGvcfQiXx
 DNUdmCuxH+2YJGORvVutbVslxFAXgYn8z6lmjgTSx+HziwmY3WhtWSQNOAxRrpoj
 Rq1r59q7FPKY/qoLjTMeQDe3O+jrGte7dX14TbKRpPDSZxxJjpswACDgCsGWqE8x
 0SGSLRlqqqnrQE0H1RfmP++0yAtHmGSN3TK0/bFmY4B+mMpj8beAq020h2iCCdbP
 7qWMI0o96lAl/D/wA55BNKuWsdXdIeQjPPoxxGEtiXN27Xk7oyQS47JkZdz6C1Lq
 V8/lF2Pa/eC6uPjnxpQDGp1IkaBE7/rn4450h9EMESrjL50As2yPUkw3BecqimHA
 fYMbSXrGe9urIflkZcY7Nx2PaBB5v1ZR3iiemjd8qahjgiT8DJYWtjFYKbuFsqJ+
 Ra13Ey9PEX13dROXBAFeX+rdaMiRQEkyQv8GSwPlnNW7OzFJc/qr8EIQOuu1flmm
 7KLYp6h45Os/fN90Lnn5N9LhjUET+2XDqEljAyyziTjsIuc1i3mPjR45j0KSq7tv
 eBp6SXpHkXrpKDrXSsJMa4SzSfK6VOHrtseE4b2XCKQLr4oSpr8d6eembKGyvNzs
 zh4TtsC+WfTu4HY5Dcbat34QAtAfGUr7ERX4/s+bnvQd944/7skOAqM7Ia9tOMKH
 ABuxJ8A7PIY=
 =myGG
 -----END PGP SIGNATURE-----

Merge tag 'pull-request-2023-03-24' of https://gitlab.com/thuth/qemu into staging

* Remove TABs in hw/ide and hw/block
* Two fixes for GCC 13
* MSYS2 CI job improvements

# -----BEGIN PGP SIGNATURE-----
#
# iQJFBAABCAAvFiEEJ7iIR+7gJQEY8+q5LtnXdP5wLbUFAmQdwwkRHHRodXRoQHJl
# ZGhhdC5jb20ACgkQLtnXdP5wLbXnWg//TcpLes6b30dTFJ3NwTYaL+ElGvcfQiXx
# DNUdmCuxH+2YJGORvVutbVslxFAXgYn8z6lmjgTSx+HziwmY3WhtWSQNOAxRrpoj
# Rq1r59q7FPKY/qoLjTMeQDe3O+jrGte7dX14TbKRpPDSZxxJjpswACDgCsGWqE8x
# 0SGSLRlqqqnrQE0H1RfmP++0yAtHmGSN3TK0/bFmY4B+mMpj8beAq020h2iCCdbP
# 7qWMI0o96lAl/D/wA55BNKuWsdXdIeQjPPoxxGEtiXN27Xk7oyQS47JkZdz6C1Lq
# V8/lF2Pa/eC6uPjnxpQDGp1IkaBE7/rn4450h9EMESrjL50As2yPUkw3BecqimHA
# fYMbSXrGe9urIflkZcY7Nx2PaBB5v1ZR3iiemjd8qahjgiT8DJYWtjFYKbuFsqJ+
# Ra13Ey9PEX13dROXBAFeX+rdaMiRQEkyQv8GSwPlnNW7OzFJc/qr8EIQOuu1flmm
# 7KLYp6h45Os/fN90Lnn5N9LhjUET+2XDqEljAyyziTjsIuc1i3mPjR45j0KSq7tv
# eBp6SXpHkXrpKDrXSsJMa4SzSfK6VOHrtseE4b2XCKQLr4oSpr8d6eembKGyvNzs
# zh4TtsC+WfTu4HY5Dcbat34QAtAfGUr7ERX4/s+bnvQd944/7skOAqM7Ia9tOMKH
# ABuxJ8A7PIY=
# =myGG
# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 24 Mar 2023 15:34:33 GMT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2023-03-24' of https://gitlab.com/thuth/qemu:
  Revert "docs/about/deprecated: Deprecate 32-bit arm hosts for system emulation"
  cirrus-ci: Remove MSYS2 jobs duplicated with gitlab-ci
  gitlab-ci: Cover SPICE in the MSYS2 job
  ui/spice: fix compilation on win32
  target/ppc: Fix helper_pminsn() prototype
  target/s390x: Fix float_comp_to_cc() prototype
  hw/block: replace TABs with space
  hw/ide: replace TABs with space

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-24 16:08:46 +00:00
Peter Maydell
d82e2e7635 Xen queue
- fix guest creation when -xen-domid-restrict is used.
 - fix Xen PV guest creation.
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEE+AwAYwjiLP2KkueYDPVXL9f7Va8FAmQdubMACgkQDPVXL9f7
 Va/bhQgA75nw4DB5LxIQLe+G/mLEvpf79Kg5lQNZ8gn84ms1zhGUWvS179xg/mT5
 F+JvVhOLMihJpWnaoiWaQQmE9VydzllHQHMZFdK0QNpVWm9l/xrw0hEkLsBMA/RS
 1t2w90gLa4iDH9E0O7xWCTDLdTN5pbCmTMBJ2m3a8OYuV2/y0nYtxazU8vHpkn6V
 6Td2cY8OKuUf14UW1hY5nqGb6SMpNTzmcnW3jAYveVBZx+BE5ALKaGo2+nCIJ6oH
 wlQ9a7UsUwLCrIxcSXytDH1kRa+zBhQPVsedeoA08eIZsBhSbH/AD3TNxipTHv0o
 jBlyXbZCjNiFe8sLi077Cvb1fiCAiQ==
 =Pc9Y
 -----END PGP SIGNATURE-----

Merge tag 'pull-xen-20230324' of https://xenbits.xen.org/git-http/people/aperard/qemu-dm into staging

Xen queue

- fix guest creation when -xen-domid-restrict is used.
- fix Xen PV guest creation.

# -----BEGIN PGP SIGNATURE-----
#
# iQEzBAABCgAdFiEE+AwAYwjiLP2KkueYDPVXL9f7Va8FAmQdubMACgkQDPVXL9f7
# Va/bhQgA75nw4DB5LxIQLe+G/mLEvpf79Kg5lQNZ8gn84ms1zhGUWvS179xg/mT5
# F+JvVhOLMihJpWnaoiWaQQmE9VydzllHQHMZFdK0QNpVWm9l/xrw0hEkLsBMA/RS
# 1t2w90gLa4iDH9E0O7xWCTDLdTN5pbCmTMBJ2m3a8OYuV2/y0nYtxazU8vHpkn6V
# 6Td2cY8OKuUf14UW1hY5nqGb6SMpNTzmcnW3jAYveVBZx+BE5ALKaGo2+nCIJ6oH
# wlQ9a7UsUwLCrIxcSXytDH1kRa+zBhQPVsedeoA08eIZsBhSbH/AD3TNxipTHv0o
# jBlyXbZCjNiFe8sLi077Cvb1fiCAiQ==
# =Pc9Y
# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 24 Mar 2023 14:54:43 GMT
# gpg:                using RSA key F80C006308E22CFD8A92E7980CF5572FD7FB55AF
# gpg: Good signature from "Anthony PERARD <anthony.perard@gmail.com>" [marginal]
# gpg:                 aka "Anthony PERARD <anthony.perard@citrix.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 5379 2F71 024C 600F 778A  7161 D8D5 7199 DF83 42C8
#      Subkey fingerprint: F80C 0063 08E2 2CFD 8A92  E798 0CF5 572F D7FB 55AF

* tag 'pull-xen-20230324' of https://xenbits.xen.org/git-http/people/aperard/qemu-dm:
  hw/xenpv: Initialize Xen backend operations
  accel/xen: Fix DM state change notification in dm_restrict mode

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-24 16:08:29 +00:00
Peter Maydell
a219645ce3 qga-pull-2023-03-22
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEwsLBCepDxjwUI+uE711egWG6hOcFAmQbUgoACgkQ711egWG6
 hOe8pw/9Gc3rySQ0mEt45kb5ESpRbwvpkYHEmA4aYmhDhuVHjuWpw1MgL980GTGe
 X2/y1ApcS6GXme4Bb3DbLu1U+N/B9l2yHDYmAMpvtljydcOc0F5KRnwhYFtB6P2L
 nSmOorIteaQmZ/DYnGF3u7KZ08dIOqujZ6QUTDAdR2q7+P/9kW4kuF3/XJHXVA8Q
 f+DQ8dYLSDw/eLPcwM18IdUV3xhTZgvSnADiQ4L3NEexLcrq7ZFYv1S66Q5+dQTK
 xijFSDVWR8+Q6PVBOBz5bP+hrYc+rmjAblk+DT+LkPruNOuBY1y09RPmaKJnvBjo
 hsj7BmcJ3dVPRmADy7gQWaE2F8A1GR4OU79JSCm46BHUMDGm1363gwhvPSeLeQQ9
 5pqKyRImU3cMF3Re06ZsOX5D02jWz7VSGKWT/JEHnWrX9U5hurnNl20pgiAbKpkv
 k10IUfEufTfQLjz3oNY/At1XFtqg8xVGRS3bhwWoFBrWiUEwVYGEg1AwrtSQ25Tw
 +7j54A3DSvJie5nxYVJAnpZMNQxUVaBkF5PWJ1fRy23UbZZwPT2MSKZDbQPAvl9g
 7K/rZVDHnBxTA/hvMeoGuxCY/kpkAV0WfiKAi1zzNGdKvxDKlyFJAD07KtfyN5oF
 QH2HQwTu1/gma+hWzSuJi2rhhcEXwojYemLfLMzCK4OBuQj8dLE=
 =uTF5
 -----END PGP SIGNATURE-----

Merge tag 'qga-pull-2023-03-22' of github.com:kostyanf14/qemu into staging

qga-pull-2023-03-22

# -----BEGIN PGP SIGNATURE-----
#
# iQIzBAABCgAdFiEEwsLBCepDxjwUI+uE711egWG6hOcFAmQbUgoACgkQ711egWG6
# hOe8pw/9Gc3rySQ0mEt45kb5ESpRbwvpkYHEmA4aYmhDhuVHjuWpw1MgL980GTGe
# X2/y1ApcS6GXme4Bb3DbLu1U+N/B9l2yHDYmAMpvtljydcOc0F5KRnwhYFtB6P2L
# nSmOorIteaQmZ/DYnGF3u7KZ08dIOqujZ6QUTDAdR2q7+P/9kW4kuF3/XJHXVA8Q
# f+DQ8dYLSDw/eLPcwM18IdUV3xhTZgvSnADiQ4L3NEexLcrq7ZFYv1S66Q5+dQTK
# xijFSDVWR8+Q6PVBOBz5bP+hrYc+rmjAblk+DT+LkPruNOuBY1y09RPmaKJnvBjo
# hsj7BmcJ3dVPRmADy7gQWaE2F8A1GR4OU79JSCm46BHUMDGm1363gwhvPSeLeQQ9
# 5pqKyRImU3cMF3Re06ZsOX5D02jWz7VSGKWT/JEHnWrX9U5hurnNl20pgiAbKpkv
# k10IUfEufTfQLjz3oNY/At1XFtqg8xVGRS3bhwWoFBrWiUEwVYGEg1AwrtSQ25Tw
# +7j54A3DSvJie5nxYVJAnpZMNQxUVaBkF5PWJ1fRy23UbZZwPT2MSKZDbQPAvl9g
# 7K/rZVDHnBxTA/hvMeoGuxCY/kpkAV0WfiKAi1zzNGdKvxDKlyFJAD07KtfyN5oF
# QH2HQwTu1/gma+hWzSuJi2rhhcEXwojYemLfLMzCK4OBuQj8dLE=
# =uTF5
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 22 Mar 2023 19:07:54 GMT
# gpg:                using RSA key C2C2C109EA43C63C1423EB84EF5D5E8161BA84E7
# gpg: Good signature from "Kostiantyn Kostiuk (Upstream PR sign) <kkostiuk@redhat.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: C2C2 C109 EA43 C63C 1423  EB84 EF5D 5E81 61BA 84E7

* tag 'qga-pull-2023-03-22' of github.com:kostyanf14/qemu:
  qga/vss-win32: fix warning for clang++-15

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-24 16:08:07 +00:00
David Woodhouse
670d8c6ebf hw/xenpv: Initialize Xen backend operations
As the Xen backend operations were abstracted out into a function table to
allow for internally emulated Xen support, we missed the xen_init_pv()
code path which also needs to install the operations for the true Xen
libraries. Add the missing call to setup_xen_backend_ops().

Fixes: b6cacfea0b ("hw/xen: Add evtchn operations to allow redirection to internal emulation")
Reported-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
Tested-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <5dfb65342d4502c1ce2f890c97cff20bf25b3860.camel@infradead.org>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2023-03-24 14:52:14 +00:00
Thomas Huth
8635a3a153 Revert "docs/about/deprecated: Deprecate 32-bit arm hosts for system emulation"
This reverts commit 1d0a8eba38.

The commit made the wrong assumption that 64-bit distros are most
common these days on arm devices, but as Liviu Ionescu pointed out,
the recommended OS for the very popular Raspberry Pi boards is still
the 32-bit variant, and thus likely still used by a lot of people:

 https://www.raspberrypi.com/software/operating-systems/

Thus it's likely still a little bit too early to put this host
environment on the deprecation list and we should wait a little
bit longer 'til 64-bit distros are the predominant ones.

Message-Id: <20230317165504.613172-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-03-24 12:10:49 +01:00
Philippe Mathieu-Daudé
da80f11efe cirrus-ci: Remove MSYS2 jobs duplicated with gitlab-ci
- Various developers are reluctant to git Cirrus-CI the permissions
  requested to access their GitHub account.

- When we use the cirrus-run script to trigger Cirrus-CI job from
  GitLab-CI, the GitLab-CI job is restricted to a 1h timeout
  (often not enough).

- Although Cirrus-CI VMs are more powerful than GitLab-CI ones,
  its free plan is limited in 2 concurrent jobs.

- The GitLab-CI MSYS2 jobs are a 1:1 mapping with the Cirrus-CI ones
  (modulo the environment caching).

Reduce the maintenance burden by removing the Cirrus-CI config file,
keeping the GitLab-CI jobs.

Update Yonggang Luo's maintenance file list to the new file, which
use the same environment shell.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230322135721.61138-3-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-03-24 12:04:06 +01:00
Philippe Mathieu-Daudé
8f03c08506 gitlab-ci: Cover SPICE in the MSYS2 job
Include the mingw-w64-x86_64-spice package so SPICE is covered:

  C compiler for the host machine: cc -m64 -mcx16 (gcc 12.2.0 "cc (Rev10, Built by MSYS2 project) 12.2.0")
  ...
  Run-time dependency spice-protocol found: YES 0.14.4
  Run-time dependency spice-server found: YES 0.15.1

In particular this would have helped catching the build issue
reported as https://gitlab.com/qemu-project/qemu/-/issues/1553:

  [1851/5253] Compiling C object libcommon.fa.p/ui_spice-core.c.obj
  FAILED: libcommon.fa.p/ui_spice-core.c.obj
  ../ui/spice-core.c: In function 'watch_remove':
  ../ui/spice-core.c:152:5: error: implicit declaration of function 'qemu_close_to_socket' [-Werror=implicit-function-declaration]
  152 |     qemu_close_to_socket(watch->fd);
      |     ^~~~~~~~~~~~~~~~~~~~
  ../ui/spice-core.c:152:5: error: nested extern declaration of 'qemu_close_to_socket' [-Werror=nested-externs]

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230322135721.61138-2-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-03-24 12:04:06 +01:00
Marc-André Lureau
7b1bde9560 ui/spice: fix compilation on win32
qemu_close_to_socket() renaming left-over.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1553
Fixes: commit e40283d9a ("ui/spice: fix SOCKET handling regression")
Reported-by: Jintao Yin <nicememory@gmail.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230322075256.2043812-1-marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-03-24 11:55:55 +01:00
Cédric Le Goater
07e4804fcd target/ppc: Fix helper_pminsn() prototype
GCC13 reports an error:

../target/ppc/excp_helper.c:2625:6: error: conflicting types for ‘helper_pminsn’ due to enum/integer mismatch; have ‘void(CPUPPCState *, powerpc_pm_insn_t)’ {aka ‘void(struct CPUArchState *, powerpc_pm_insn_t)’} [-Werror=enum-int-mismatch]
 2625 | void helper_pminsn(CPUPPCState *env, powerpc_pm_insn_t insn)
      |      ^~~~~~~~~~~~~
In file included from /home/legoater/work/qemu/qemu.git/include/qemu/osdep.h:49,
                 from ../target/ppc/excp_helper.c:19:
/home/legoater/work/qemu/qemu.git/include/exec/helper-head.h:23:27: note: previous declaration of ‘helper_pminsn’ with type ‘void(CPUArchState *, uint32_t)’ {aka ‘void(CPUArchState *, unsigned int)’}
   23 | #define HELPER(name) glue(helper_, name)
      |                           ^~~~~~~

Fixes: 7778a575c7 ("ppc: Add P7/P8 Power Management instructions")
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20230321161609.716474-4-clg@kaod.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-03-24 11:46:08 +01:00