[PULL v2 00/19] Linux user for 5.1 patches

[PULL v2 00/19] Linux user for 5.1 patches

[Laurent Vivier]

The following changes since commit ddc760832fa8cf5e93b9d9e6e854a5114ac63510:

  Merge remote-tracking branch 'remotes/gkurz/tags/9p-next-2020-05-26' into s=
taging (2020-05-26 14:05:53 +0100)

are available in the Git repository at:

  git://github.com/vivier/qemu.git tags/linux-user-for-5.1-pull-request

for you to fetch changes up to 95722b27845b972250a7d4f93b693b01e2a0c3a1:

  stubs: Restrict ui/win32-kbd-hook to system-mode (2020-06-05 21:23:22 +0200)

----------------------------------------------------------------
linux-user pull request 20200605-v2

Implement F_OFD_ fcntl() command, /proc/cpuinfo for hppa
Fix socket(), prnctl() error codes, underflow in target_mremap,
    epoll_create() strace, oldumount for alpha
User-mode build dependencies improvement

----------------------------------------------------------------

Andreas Schwab (1):
  linux-user: implement OFD locks

Helge Deller (2):
  linux-user: return target error codes for socket() and prctl()
  linux-user: Add support for /proc/cpuinfo on hppa platform

Jonathan Marler (1):
  linux-user/mmap.c: fix integer underflow in target_mremap

Laurent Vivier (1):
  linux-user, alpha: fix oldumount syscall

Philippe Mathieu-Daud=C3=A9 (13):
  Makefile: Only build virtiofsd if system-mode is enabled
  configure: Avoid building TCG when not needed
  tests/Makefile: Only display TCG-related tests when TCG is available
  tests/Makefile: Restrict some softmmu-only tests
  util/Makefile: Reduce the user-mode object list
  stubs/Makefile: Reduce the user-mode object list
  target/riscv/cpu: Restrict CPU migration to system-mode
  exec: Assert CPU migration is not used on user-only build
  arch_init: Remove unused 'qapi-commands-misc.h' include
  target/i386: Restrict CpuClass::get_crash_info() to system-mode
  target/s390x: Restrict CpuClass::get_crash_info() to system-mode
  hw/core: Restrict CpuClass::get_crash_info() to system-mode
  stubs: Restrict ui/win32-kbd-hook to system-mode

Sergei Trofimovich (1):
  linux-user/strace.list: fix epoll_create{,1} -strace output

 Makefile                   |  2 +-
 arch_init.c                |  1 -
 configure                  |  4 +++
 exec.c                     |  4 ++-
 hw/core/cpu.c              |  2 ++
 include/hw/core/cpu.h      |  7 ++++-
 linux-user/generic/fcntl.h |  4 +++
 linux-user/mmap.c          |  2 +-
 linux-user/strace.list     |  4 +--
 linux-user/syscall.c       | 33 +++++++++++++++++----
 stubs/Makefile.objs        | 52 +++++++++++++++++++--------------
 target/i386/cpu.c          |  6 +++-
 target/riscv/cpu.c         |  6 ++--
 target/s390x/cpu.c         | 12 ++++----
 tests/Makefile.include     | 18 ++++++------
 util/Makefile.objs         | 59 ++++++++++++++++++++++++--------------
 16 files changed, 143 insertions(+), 73 deletions(-)

--=20
2.26.2

[PULL v2 01/19] linux-user, alpha: fix oldumount syscall

[Laurent Vivier]

When we try to bootstrap debian/lenny for alpha, it fails because
it cannot umount /.root directory:

  ...
  Setting up initscripts (2.86.ds1-61) ...
  umount: /.root: Function not implemented
  dpkg: error processing initscripts (--configure):
   subprocess post-installation script returned error exit status 1
  dpkg: sysvinit: dependency problems, but configuring anyway as you request:
   sysvinit depends on initscripts; however:
    Package initscripts is not configured yet.

This is because, when we switched from syscall_nr.h to syscall.tbl,
the syscall #321 has been renamed from umount to oldumount and
syscall.c has not been updated to manage the new name.

oldumount has been introduced in linux 2.1.116pre1 by:
  7d32756b2 ("Import 2.1.116pre1")
...
 * We now support a flag for forced unmount like the other 'big iron'
 * unixes. Our API is identical to OSF/1 to avoid making a mess of AMD
...

Fixes: 6116aea994 ("linux-user, alpha: add syscall table generation support")
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200502194642.32823-1-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/syscall.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 05f03919ff07..e89b815ce983 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -8028,8 +8028,13 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
             }
         }
         return ret;
-#ifdef TARGET_NR_umount
+#if defined(TARGET_NR_umount) || defined(TARGET_NR_oldumount)
+#if defined(TARGET_NR_umount)
     case TARGET_NR_umount:
+#endif
+#if defined(TARGET_NR_oldumount)
+    case TARGET_NR_oldumount:
+#endif
         if (!(p = lock_user_string(arg1)))
             return -TARGET_EFAULT;
         ret = get_errno(umount(p));
-- 
2.26.2

[PULL v2 02/19] linux-user: return target error codes for socket() and prctl()

[Laurent Vivier]

From: Helge Deller <deller@gmx.de>

Return target error codes instead of host error codes.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>

Message-Id: <20200424220033.GA28140@ls3530.fritz.box>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/syscall.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index e89b815ce983..fd5c4f1d73e6 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -2987,7 +2987,7 @@ static abi_long do_socket(int domain, int type, int protocol)
 #endif
          protocol == NETLINK_KOBJECT_UEVENT ||
          protocol == NETLINK_AUDIT)) {
-        return -EPFNOSUPPORT;
+        return -TARGET_EPFNOSUPPORT;
     }
 
     if (domain == AF_PACKET ||
@@ -5856,7 +5856,7 @@ static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
 
 abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
 {
-    return -ENOSYS;
+    return -TARGET_ENOSYS;
 }
 #else
 abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
-- 
2.26.2

[PULL v2 03/19] linux-user: Add support for /proc/cpuinfo on hppa platform

[Laurent Vivier]

From: Helge Deller <deller@gmx.de>

Provide our own /proc/cpuinfo file for the hppa (parisc) platform.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200424210648.GA26715@ls3530.fritz.box>
[lv: s/an/our/ and add TARGET_HPPA to guard is_proc()]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/syscall.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index fd5c4f1d73e6..9ac3af20c176 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -7378,7 +7378,7 @@ static int is_proc_myself(const char *filename, const char *entry)
 }
 
 #if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) || \
-    defined(TARGET_SPARC) || defined(TARGET_M68K)
+    defined(TARGET_SPARC) || defined(TARGET_M68K) || defined(TARGET_HPPA)
 static int is_proc(const char *filename, const char *entry)
 {
     return strcmp(filename, entry) == 0;
@@ -7438,6 +7438,18 @@ static int open_cpuinfo(void *cpu_env, int fd)
 }
 #endif
 
+#if defined(TARGET_HPPA)
+static int open_cpuinfo(void *cpu_env, int fd)
+{
+    dprintf(fd, "cpu family\t: PA-RISC 1.1e\n");
+    dprintf(fd, "cpu\t\t: PA7300LC (PCX-L2)\n");
+    dprintf(fd, "capabilities\t: os32\n");
+    dprintf(fd, "model\t\t: 9000/778/B160L\n");
+    dprintf(fd, "model name\t: Merlin L2 160 QEMU (9000/778/B160L)\n");
+    return 0;
+}
+#endif
+
 #if defined(TARGET_M68K)
 static int open_hardware(void *cpu_env, int fd)
 {
@@ -7462,7 +7474,7 @@ static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags,
 #if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
         { "/proc/net/route", open_net_route, is_proc },
 #endif
-#if defined(TARGET_SPARC)
+#if defined(TARGET_SPARC) || defined(TARGET_HPPA)
         { "/proc/cpuinfo", open_cpuinfo, is_proc },
 #endif
 #if defined(TARGET_M68K)
-- 
2.26.2

[PULL v2 04/19] linux-user/strace.list: fix epoll_create{, 1} -strace output

[Laurent Vivier]

From: Sergei Trofimovich <slyfox@gentoo.org>

Fix syscall name and parameters priinter.

Before the change:

```
$ alpha-linux-user/qemu-alpha -strace -L /usr/alpha-unknown-linux-gnu/ /tmp/a
...
1274697 %s(%d)(2097152,274903156744,274903156760,274905840712,274877908880,274903235616) = 3
1274697 exit_group(0)
```

After the change:

```
$ alpha-linux-user/qemu-alpha -strace -L /usr/alpha-unknown-linux-gnu/ /tmp/a
...
1273719 epoll_create1(2097152) = 3
1273719 exit_group(0)
```

Fixes: 9cbc0578cb6 ("Improve output of various syscalls")
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
CC: Riku Voipio <riku.voipio@iki.fi>
CC: Laurent Vivier <laurent@vivier.eu>
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200416175957.1274882-1-slyfox@gentoo.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/strace.list | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/linux-user/strace.list b/linux-user/strace.list
index d49a1e92a80e..9281c0a75828 100644
--- a/linux-user/strace.list
+++ b/linux-user/strace.list
@@ -125,10 +125,10 @@
 { TARGET_NR_dup3, "dup3" , "%s(%d,%d,%d)", NULL, NULL },
 #endif
 #ifdef TARGET_NR_epoll_create
-{ TARGET_NR_epoll_create, "%s(%d)", NULL, NULL, NULL },
+{ TARGET_NR_epoll_create, "epoll_create", "%s(%d)", NULL, NULL },
 #endif
 #ifdef TARGET_NR_epoll_create1
-{ TARGET_NR_epoll_create1, "%s(%d)", NULL, NULL, NULL },
+{ TARGET_NR_epoll_create1, "epoll_create1", "%s(%d)", NULL, NULL },
 #endif
 #ifdef TARGET_NR_epoll_ctl
 { TARGET_NR_epoll_ctl, "epoll_ctl" , NULL, NULL, NULL },
-- 
2.26.2

[PULL v2 05/19] linux-user/mmap.c: fix integer underflow in target_mremap

[Laurent Vivier]

From: Jonathan Marler <johnnymarler@gmail.com>

Fixes: https://bugs.launchpad.net/bugs/1876373

This code path in mmap occurs when a page size is decreased with mremap.  When a section of pages is shrunk, qemu calls mmap_reserve on the pages that were released.  However, it has the diff operation reversed, subtracting the larger old_size from the smaller new_size.  Instead, it should be subtracting the smaller new_size from the larger old_size.  You can also see in the previous line of the change that this mmap_reserve call only occurs when old_size > new_size.

Bug: https://bugs.launchpad.net/qemu/+bug/1876373
Signed-off-by: Jonathan Marler <johnnymarler@gmail.com>
Reviewded-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200502161225.14346-1-johnnymarler@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/mmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index e37803379747..caab62909eb1 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -708,7 +708,7 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
         if (prot == 0) {
             host_addr = mremap(g2h(old_addr), old_size, new_size, flags);
             if (host_addr != MAP_FAILED && reserved_va && old_size > new_size) {
-                mmap_reserve(old_addr + old_size, new_size - old_size);
+                mmap_reserve(old_addr + old_size, old_size - new_size);
             }
         } else {
             errno = ENOMEM;
-- 
2.26.2

[PULL v2 06/19] linux-user: implement OFD locks

[Laurent Vivier]

From: Andreas Schwab <schwab@suse.de>

Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <mvm7dx0cun3.fsf@suse.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/generic/fcntl.h | 4 ++++
 linux-user/syscall.c       | 6 ++++++
 2 files changed, 10 insertions(+)

diff --git a/linux-user/generic/fcntl.h b/linux-user/generic/fcntl.h
index 9f727d4df2c8..c85c5b9fed65 100644
--- a/linux-user/generic/fcntl.h
+++ b/linux-user/generic/fcntl.h
@@ -99,6 +99,10 @@
 #define TARGET_F_SETLKW64      14
 #endif
 
+#define TARGET_F_OFD_GETLK     36
+#define TARGET_F_OFD_SETLK     37
+#define TARGET_F_OFD_SETLKW    38
+
 #ifndef TARGET_F_SETOWN_EX
 #define TARGET_F_SETOWN_EX     15
 #define TARGET_F_GETOWN_EX     16
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 9ac3af20c176..2d8125fa53c6 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -6098,6 +6098,9 @@ static int target_to_host_fcntl_cmd(int cmd)
     case TARGET_F_SETFD:
     case TARGET_F_GETFL:
     case TARGET_F_SETFL:
+    case TARGET_F_OFD_GETLK:
+    case TARGET_F_OFD_SETLK:
+    case TARGET_F_OFD_SETLKW:
         ret = cmd;
         break;
     case TARGET_F_GETLK:
@@ -6383,6 +6386,7 @@ static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
         break;
 
     case TARGET_F_GETLK64:
+    case TARGET_F_OFD_GETLK:
         ret = copy_from_user_flock64(&fl64, arg);
         if (ret) {
             return ret;
@@ -6394,6 +6398,8 @@ static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
         break;
     case TARGET_F_SETLK64:
     case TARGET_F_SETLKW64:
+    case TARGET_F_OFD_SETLK:
+    case TARGET_F_OFD_SETLKW:
         ret = copy_from_user_flock64(&fl64, arg);
         if (ret) {
             return ret;
-- 
2.26.2

[PULL v2 07/19] Makefile: Only build virtiofsd if system-mode is enabled

[Laurent Vivier]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

Do not build the virtiofsd helper when configured with
--disable-system.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200522172510.25784-2-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 40e4f7677bde..d1af126ea194 100644
--- a/Makefile
+++ b/Makefile
@@ -345,7 +345,7 @@ HELPERS-y += vhost-user-gpu$(EXESUF)
 vhost-user-json-y += contrib/vhost-user-gpu/50-qemu-gpu.json
 endif
 
-ifeq ($(CONFIG_LINUX)$(CONFIG_SECCOMP)$(CONFIG_LIBCAP_NG),yyy)
+ifeq ($(CONFIG_SOFTMMU)$(CONFIG_LINUX)$(CONFIG_SECCOMP)$(CONFIG_LIBCAP_NG),yyyy)
 HELPERS-y += virtiofsd$(EXESUF)
 vhost-user-json-y += tools/virtiofsd/50-qemu-virtiofsd.json
 endif
-- 
2.26.2

[PULL v2 08/19] configure: Avoid building TCG when not needed

[Laurent Vivier]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

Avoid building TCG when building only tools:

  ./configure --enable-tools --disable-system --disable-user

This saves us from running the soft-float tests enabled since
commit 76170102508.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200522172510.25784-3-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 configure | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configure b/configure
index b969dee675bb..fccc56bd4d1f 100755
--- a/configure
+++ b/configure
@@ -1663,6 +1663,10 @@ if [ "$ARCH" = "unknown" ]; then
   linux_user="no"
 fi
 
+if [ "$bsd_user" = "no" -a "$linux_user" = "no" -a "$softmmu" = "no" ] ; then
+  tcg="no"
+fi
+
 default_target_list=""
 
 mak_wilds=""
-- 
2.26.2

[PULL v2 09/19] tests/Makefile: Only display TCG-related tests when TCG is available

[Laurent Vivier]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200522172510.25784-4-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 tests/Makefile.include | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tests/Makefile.include b/tests/Makefile.include
index 03a74b60f6b2..6bc3d1096bc9 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -12,8 +12,10 @@ check-help:
 	@echo " $(MAKE) check-speed          Run qobject speed tests"
 	@echo " $(MAKE) check-qapi-schema    Run QAPI schema tests"
 	@echo " $(MAKE) check-block          Run block tests"
+ifeq ($(CONFIG_TCG),y)
 	@echo " $(MAKE) check-tcg            Run TCG tests"
 	@echo " $(MAKE) check-softfloat      Run FPU emulation tests"
+endif
 	@echo " $(MAKE) check-acceptance     Run all acceptance (functional) tests"
 	@echo
 	@echo " $(MAKE) check-report.tap     Generates an aggregated TAP test report"
-- 
2.26.2

[PULL v2 10/19] tests/Makefile: Restrict some softmmu-only tests

[Laurent Vivier]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

In the next commit we are going to remove some objects from the
util-obj-y variable (objects which are not used by user-mode,
when configured with --disable-system).
Then some system-mode tests are going to fail, due to the missing
objects:

  $ make check-unit -k
    LINK    tests/test-iov
  /usr/bin/ld: tests/test-iov.o: in function `iov_from_buf':
  include/qemu/iov.h:49: undefined reference to `iov_from_buf_full'
  make: *** [rules.mak:124: tests/test-iov] Error 1
    LINK    tests/test-timed-average
  /usr/bin/ld: tests/test-timed-average.o: in function `account':
  tests/test-timed-average.c:27: undefined reference to `timed_average_account'
  make: *** [rules.mak:124: tests/test-timed-average] Error 1
    LINK    tests/test-util-filemonitor
  /usr/bin/ld: tests/test-util-filemonitor.o: in function `qemu_file_monitor_test_event_loop':
  tests/test-util-filemonitor.c:83: undefined reference to `main_loop_wait'
  make: *** [rules.mak:124: tests/test-util-filemonitor] Error 1
    LINK    tests/test-util-sockets
  /usr/bin/ld: tests/test-util-sockets.o: in function `test_socket_fd_pass_name_good':
  tests/test-util-sockets.c:91: undefined reference to `socket_connect'
  make: *** [rules.mak:124: tests/test-util-sockets] Error 1
    LINK    tests/test-base64
  /usr/bin/ld: tests/test-base64.o: in function `test_base64_good':
  tests/test-base64.c:35: undefined reference to `qbase64_decode'
  collect2: error: ld returned 1 exit status
  make: *** [rules.mak:124: tests/test-base64] Error 1
    LINK    tests/test-bufferiszero
  /usr/bin/ld: tests/test-bufferiszero.o: in function `test_1':
  tests/test-bufferiszero.c:31: undefined reference to `buffer_is_zero'
  make: *** [rules.mak:124: tests/test-bufferiszero] Error 1
  make: Target 'check-unit' not remade because of errors.

Instead, restrict these tests to system-mode, by using the
$(CONFIG_SOFTMMU) variable.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200522172510.25784-5-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 tests/Makefile.include | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/tests/Makefile.include b/tests/Makefile.include
index 6bc3d1096bc9..0cb58aad2685 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -66,14 +66,14 @@ check-unit-y += tests/check-qlit$(EXESUF)
 check-unit-y += tests/test-qobject-output-visitor$(EXESUF)
 check-unit-y += tests/test-clone-visitor$(EXESUF)
 check-unit-y += tests/test-qobject-input-visitor$(EXESUF)
-check-unit-y += tests/test-qmp-cmds$(EXESUF)
+check-unit-$(CONFIG_SOFTMMU) += tests/test-qmp-cmds$(EXESUF)
 check-unit-y += tests/test-string-input-visitor$(EXESUF)
 check-unit-y += tests/test-string-output-visitor$(EXESUF)
 check-unit-y += tests/test-qmp-event$(EXESUF)
 check-unit-y += tests/test-opts-visitor$(EXESUF)
 check-unit-$(CONFIG_BLOCK) += tests/test-coroutine$(EXESUF)
 check-unit-y += tests/test-visitor-serialization$(EXESUF)
-check-unit-y += tests/test-iov$(EXESUF)
+check-unit-$(CONFIG_SOFTMMU) += tests/test-iov$(EXESUF)
 check-unit-y += tests/test-bitmap$(EXESUF)
 check-unit-$(CONFIG_BLOCK) += tests/test-aio$(EXESUF)
 check-unit-$(CONFIG_BLOCK) += tests/test-aio-multithread$(EXESUF)
@@ -108,7 +108,7 @@ check-unit-y += tests/test-qht$(EXESUF)
 check-unit-y += tests/test-qht-par$(EXESUF)
 check-unit-y += tests/test-bitops$(EXESUF)
 check-unit-y += tests/test-bitcnt$(EXESUF)
-check-unit-y += tests/test-qdev-global-props$(EXESUF)
+check-unit-$(CONFIG_SOFTMMU) += tests/test-qdev-global-props$(EXESUF)
 check-unit-y += tests/check-qom-interface$(EXESUF)
 check-unit-y += tests/check-qom-proplist$(EXESUF)
 check-unit-y += tests/test-qemu-opts$(EXESUF)
@@ -126,9 +126,9 @@ check-unit-$(call land,$(CONFIG_BLOCK),$(CONFIG_GNUTLS)) += tests/test-crypto-tl
 ifneq (,$(findstring qemu-ga,$(TOOLS)))
 check-unit-$(call land,$(CONFIG_LINUX),$(CONFIG_VIRTIO_SERIAL)) += tests/test-qga$(EXESUF)
 endif
-check-unit-y += tests/test-timed-average$(EXESUF)
-check-unit-$(CONFIG_INOTIFY1) += tests/test-util-filemonitor$(EXESUF)
-check-unit-y += tests/test-util-sockets$(EXESUF)
+check-unit-$(CONFIG_SOFTMMU) += tests/test-timed-average$(EXESUF)
+check-unit-$(call land,$(CONFIG_SOFTMMU),$(CONFIG_INOTIFY1)) += tests/test-util-filemonitor$(EXESUF)
+check-unit-$(CONFIG_SOFTMMU) += tests/test-util-sockets$(EXESUF)
 check-unit-$(CONFIG_BLOCK) += tests/test-authz-simple$(EXESUF)
 check-unit-$(CONFIG_BLOCK) += tests/test-authz-list$(EXESUF)
 check-unit-$(CONFIG_BLOCK) += tests/test-authz-listfile$(EXESUF)
@@ -139,7 +139,7 @@ check-unit-$(CONFIG_BLOCK) += tests/test-io-channel-file$(EXESUF)
 check-unit-$(call land,$(CONFIG_BLOCK),$(CONFIG_GNUTLS)) += tests/test-io-channel-tls$(EXESUF)
 check-unit-$(CONFIG_BLOCK) += tests/test-io-channel-command$(EXESUF)
 check-unit-$(CONFIG_BLOCK) += tests/test-io-channel-buffer$(EXESUF)
-check-unit-y += tests/test-base64$(EXESUF)
+check-unit-$(CONFIG_SOFTMMU) += tests/test-base64$(EXESUF)
 check-unit-$(call land,$(CONFIG_BLOCK),$(if $(CONFIG_NETTLE),y,$(CONFIG_GCRYPT))) += tests/test-crypto-pbkdf$(EXESUF)
 check-unit-$(CONFIG_BLOCK) += tests/test-crypto-ivgen$(EXESUF)
 check-unit-$(CONFIG_BLOCK)  += tests/test-crypto-afsplit$(EXESUF)
@@ -147,7 +147,7 @@ check-unit-$(call land,$(CONFIG_BLOCK),$(CONFIG_QEMU_PRIVATE_XTS)) += tests/test
 check-unit-$(CONFIG_BLOCK)  += tests/test-crypto-block$(EXESUF)
 check-unit-y += tests/test-logging$(EXESUF)
 check-unit-$(call land,$(CONFIG_BLOCK),$(CONFIG_REPLICATION)) += tests/test-replication$(EXESUF)
-check-unit-y += tests/test-bufferiszero$(EXESUF)
+check-unit-$(CONFIG_SOFTMMU) += tests/test-bufferiszero$(EXESUF)
 check-unit-y += tests/test-uuid$(EXESUF)
 check-unit-y += tests/ptimer-test$(EXESUF)
 check-unit-y += tests/test-qapi-util$(EXESUF)
-- 
2.26.2

[PULL v2 11/19] util/Makefile: Reduce the user-mode object list

[Laurent Vivier]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

These objects are not required when configured with --disable-system.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200522172510.25784-6-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 util/Makefile.objs | 59 +++++++++++++++++++++++++++++-----------------
 1 file changed, 38 insertions(+), 21 deletions(-)

diff --git a/util/Makefile.objs b/util/Makefile.objs
index fe339c2636ba..cc5e37177afd 100644
--- a/util/Makefile.objs
+++ b/util/Makefile.objs
@@ -1,8 +1,4 @@
 util-obj-y = osdep.o cutils.o unicode.o qemu-timer-common.o
-util-obj-y += bufferiszero.o
-util-obj-y += lockcnt.o
-util-obj-y += aiocb.o async.o aio-wait.o thread-pool.o qemu-timer.o
-util-obj-y += main-loop.o
 util-obj-$(call lnot,$(CONFIG_ATOMIC64)) += atomic64.o
 util-obj-$(CONFIG_POSIX) += aio-posix.o
 util-obj-$(CONFIG_POSIX) += fdmon-poll.o
@@ -21,31 +17,20 @@ util-obj-$(CONFIG_WIN32) += oslib-win32.o
 util-obj-$(CONFIG_WIN32) += qemu-thread-win32.o
 util-obj-y += envlist.o path.o module.o
 util-obj-y += host-utils.o
-util-obj-y += bitmap.o bitops.o hbitmap.o
+util-obj-y += bitmap.o bitops.o
 util-obj-y += fifo8.o
-util-obj-y += nvdimm-utils.o
 util-obj-y += cacheinfo.o
 util-obj-y += error.o qemu-error.o
 util-obj-y += qemu-print.o
 util-obj-y += id.o
-util-obj-y += iov.o qemu-config.o qemu-sockets.o uri.o notify.o
+util-obj-y += qemu-config.o notify.o
 util-obj-y += qemu-option.o qemu-progress.o
 util-obj-y += keyval.o
-util-obj-y += hexdump.o
 util-obj-y += crc32c.o
 util-obj-y += uuid.o
-util-obj-y += throttle.o
 util-obj-y += getauxval.o
-util-obj-y += readline.o
 util-obj-y += rcu.o
 util-obj-$(CONFIG_MEMBARRIER) += sys_membarrier.o
-util-obj-y += qemu-coroutine.o qemu-coroutine-lock.o qemu-coroutine-io.o
-util-obj-y += qemu-coroutine-sleep.o
-util-obj-y += qemu-co-shared-resource.o
-util-obj-y += coroutine-$(CONFIG_COROUTINE_BACKEND).o
-util-obj-y += buffer.o
-util-obj-y += timed-average.o
-util-obj-y += base64.o
 util-obj-y += log.o
 util-obj-y += pagesize.o
 util-obj-y += qdist.o
@@ -54,13 +39,45 @@ util-obj-y += qsp.o
 util-obj-y += range.o
 util-obj-y += stats64.o
 util-obj-y += systemd.o
-util-obj-y += iova-tree.o
-util-obj-$(CONFIG_INOTIFY1) += filemonitor-inotify.o
-util-obj-$(call lnot,$(CONFIG_INOTIFY1)) += filemonitor-stub.o
-util-obj-$(CONFIG_LINUX) += vfio-helpers.o
 util-obj-$(CONFIG_POSIX) += drm.o
 util-obj-y += guest-random.o
 util-obj-$(CONFIG_GIO) += dbus.o
 dbus.o-cflags = $(GIO_CFLAGS)
 dbus.o-libs = $(GIO_LIBS)
 util-obj-$(CONFIG_USER_ONLY) += selfmap.o
+
+#######################################################################
+# code used by both qemu system emulation and qemu-img
+
+ifeq ($(call lor,$(CONFIG_SOFTMMU),$(CONFIG_TOOLS)),y)
+
+util-obj-y += aio-wait.o
+util-obj-y += aiocb.o
+util-obj-y += async.o
+util-obj-y += base64.o
+util-obj-y += buffer.o
+util-obj-y += bufferiszero.o
+util-obj-y += coroutine-$(CONFIG_COROUTINE_BACKEND).o
+util-obj-y += hexdump.o
+util-obj-y += lockcnt.o
+util-obj-y += iov.o
+util-obj-y += iova-tree.o
+util-obj-y += hbitmap.o
+util-obj-y += main-loop.o
+util-obj-y += nvdimm-utils.o
+util-obj-y += qemu-coroutine.o qemu-coroutine-lock.o qemu-coroutine-io.o
+util-obj-y += qemu-coroutine-sleep.o
+util-obj-y += qemu-co-shared-resource.o
+util-obj-y += qemu-sockets.o
+util-obj-y += qemu-timer.o
+util-obj-y += thread-pool.o
+util-obj-y += throttle.o
+util-obj-y += timed-average.o
+util-obj-y += uri.o
+
+util-obj-$(CONFIG_LINUX) += vfio-helpers.o
+util-obj-$(CONFIG_INOTIFY1) += filemonitor-inotify.o
+util-obj-$(call lnot,$(CONFIG_INOTIFY1)) += filemonitor-stub.o
+util-obj-$(CONFIG_BLOCK) += readline.o
+
+endif # CONFIG_SOFTMMU || CONFIG_TOOLS
-- 
2.26.2

[PULL v2 12/19] stubs/Makefile: Reduce the user-mode object list

[Laurent Vivier]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

These stubs are not required when configured with --disable-system.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200522172510.25784-7-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 stubs/Makefile.objs | 50 ++++++++++++++++++++++++++-------------------
 1 file changed, 29 insertions(+), 21 deletions(-)

diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index 6a9e3135e8f9..f54125de317d 100644
--- a/stubs/Makefile.objs
+++ b/stubs/Makefile.objs
@@ -1,47 +1,55 @@
-stub-obj-y += arch_type.o
-stub-obj-y += bdrv-next-monitor-owned.o
 stub-obj-y += blk-commit-all.o
-stub-obj-y += blockdev-close-all-bdrv-states.o
-stub-obj-y += clock-warp.o
 stub-obj-y += cpu-get-clock.o
 stub-obj-y += cpu-get-icount.o
 stub-obj-y += dump.o
 stub-obj-y += error-printf.o
 stub-obj-y += fdset.o
 stub-obj-y += gdbstub.o
-stub-obj-y += get-vm-name.o
-stub-obj-y += iothread.o
 stub-obj-y += iothread-lock.o
 stub-obj-y += is-daemonized.o
 stub-obj-$(CONFIG_LINUX_AIO) += linux-aio.o
 stub-obj-$(CONFIG_LINUX_IO_URING) += io_uring.o
-stub-obj-y += machine-init-done.o
-stub-obj-y += migr-blocker.o
-stub-obj-y += change-state-handler.o
-stub-obj-y += monitor.o
 stub-obj-y += monitor-core.o
 stub-obj-y += notify-event.o
+stub-obj-y += qmp_memory_device.o
 stub-obj-y += qtest.o
+stub-obj-y += ramfb.o
 stub-obj-y += replay.o
-stub-obj-y += replay-user.o
 stub-obj-y += runstate-check.o
+stub-obj-$(CONFIG_SOFTMMU) += semihost.o
 stub-obj-y += set-fd-handler.o
+stub-obj-y += vmgenid.o
 stub-obj-y += sysbus.o
 stub-obj-y += tpm.o
 stub-obj-y += trace-control.o
-stub-obj-y += uuid.o
-stub-obj-y += vm-stop.o
 stub-obj-y += vmstate.o
 stub-obj-y += win32-kbd-hook.o
+
+#######################################################################
+# code used by both qemu system emulation and qemu-img
+
+ifeq ($(call lor,$(CONFIG_SOFTMMU),$(CONFIG_TOOLS)),y)
+
+stub-obj-y += arch_type.o
+stub-obj-y += bdrv-next-monitor-owned.o
+stub-obj-y += blockdev-close-all-bdrv-states.o
+stub-obj-y += change-state-handler.o
+stub-obj-y += clock-warp.o
 stub-obj-y += fd-register.o
-stub-obj-y += qmp_memory_device.o
-stub-obj-y += target-monitor-defs.o
+stub-obj-y += fw_cfg.o
+stub-obj-y += get-vm-name.o
+stub-obj-y += iothread.o
+stub-obj-y += machine-init-done.o
+stub-obj-y += migr-blocker.o
+stub-obj-y += monitor.o
+stub-obj-y += pci-host-piix.o
+stub-obj-y += ram-block.o
+stub-obj-y += replay-user.o
 stub-obj-y += target-get-monitor-def.o
-stub-obj-y += vmgenid.o
+stub-obj-y += target-monitor-defs.o
+stub-obj-y += uuid.o
+stub-obj-y += vm-stop.o
 stub-obj-y += xen-common.o
 stub-obj-y += xen-hvm.o
-stub-obj-y += pci-host-piix.o
-stub-obj-y += ram-block.o
-stub-obj-y += ramfb.o
-stub-obj-y += fw_cfg.o
-stub-obj-$(CONFIG_SOFTMMU) += semihost.o
+
+endif # CONFIG_SOFTMMU || CONFIG_TOOLS
-- 
2.26.2

[PULL v2 13/19] target/riscv/cpu: Restrict CPU migration to system-mode

[Laurent Vivier]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200522172510.25784-8-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 target/riscv/cpu.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 059d71f2c715..6c78337858ad 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -485,10 +485,12 @@ static void riscv_cpu_init(Object *obj)
     cpu_set_cpustate_pointers(cpu);
 }
 
+#ifndef CONFIG_USER_ONLY
 static const VMStateDescription vmstate_riscv_cpu = {
     .name = "cpu",
     .unmigratable = 1,
 };
+#endif
 
 static Property riscv_cpu_properties[] = {
     DEFINE_PROP_BOOL("i", RISCVCPU, cfg.ext_i, true),
@@ -544,13 +546,13 @@ static void riscv_cpu_class_init(ObjectClass *c, void *data)
     cc->do_transaction_failed = riscv_cpu_do_transaction_failed;
     cc->do_unaligned_access = riscv_cpu_do_unaligned_access;
     cc->get_phys_page_debug = riscv_cpu_get_phys_page_debug;
+    /* For now, mark unmigratable: */
+    cc->vmsd = &vmstate_riscv_cpu;
 #endif
 #ifdef CONFIG_TCG
     cc->tcg_initialize = riscv_translate_init;
     cc->tlb_fill = riscv_cpu_tlb_fill;
 #endif
-    /* For now, mark unmigratable: */
-    cc->vmsd = &vmstate_riscv_cpu;
     device_class_set_props(dc, riscv_cpu_properties);
 }
 
-- 
2.26.2

[PULL v2 14/19] exec: Assert CPU migration is not used on user-only build

[Laurent Vivier]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200522172510.25784-9-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 exec.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/exec.c b/exec.c
index 5162f0d12f99..6dfd314469de 100644
--- a/exec.c
+++ b/exec.c
@@ -946,7 +946,9 @@ void cpu_exec_realizefn(CPUState *cpu, Error **errp)
 
     qemu_plugin_vcpu_init_hook(cpu);
 
-#ifndef CONFIG_USER_ONLY
+#ifdef CONFIG_USER_ONLY
+    assert(cc->vmsd == NULL);
+#else /* !CONFIG_USER_ONLY */
     if (qdev_get_vmsd(DEVICE(cpu)) == NULL) {
         vmstate_register(NULL, cpu->cpu_index, &vmstate_cpu_common, cpu);
     }
-- 
2.26.2

[PULL v2 15/19] arch_init: Remove unused 'qapi-commands-misc.h' include

[Laurent Vivier]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

Commit ffaee83bcb2 moved qmp_query_target but forgot to remove
this include.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200522172510.25784-10-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 arch_init.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch_init.c b/arch_init.c
index d9eb0ec1dd03..8afea4748bad 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -27,7 +27,6 @@
 #include "sysemu/arch_init.h"
 #include "hw/pci/pci.h"
 #include "hw/audio/soundhw.h"
-#include "qapi/qapi-commands-misc.h"
 #include "qapi/error.h"
 #include "qemu/config-file.h"
 #include "qemu/error-report.h"
-- 
2.26.2

[PULL v2 16/19] target/i386: Restrict CpuClass::get_crash_info() to system-mode

[Laurent Vivier]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200522172510.25784-11-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 target/i386/cpu.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 7a4a8e3847f0..dd31c1de5f2b 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -6843,6 +6843,7 @@ static void x86_cpu_register_feature_bit_props(X86CPU *cpu,
     x86_cpu_register_bit_prop(cpu, name, w, bitnr);
 }
 
+#if !defined(CONFIG_USER_ONLY)
 static GuestPanicInformation *x86_cpu_get_crash_info(CPUState *cs)
 {
     X86CPU *cpu = X86_CPU(cs);
@@ -6886,6 +6887,7 @@ static void x86_cpu_get_crash_info_qom(Object *obj, Visitor *v,
                                      errp);
     qapi_free_GuestPanicInformation(panic_info);
 }
+#endif /* !CONFIG_USER_ONLY */
 
 static void x86_cpu_initfn(Object *obj)
 {
@@ -6932,8 +6934,10 @@ static void x86_cpu_initfn(Object *obj)
                         x86_cpu_get_unavailable_features,
                         NULL, NULL, NULL);
 
+#if !defined(CONFIG_USER_ONLY)
     object_property_add(obj, "crash-information", "GuestPanicInformation",
                         x86_cpu_get_crash_info_qom, NULL, NULL, NULL);
+#endif
 
     for (w = 0; w < FEATURE_WORDS; w++) {
         int bitnr;
@@ -7245,7 +7249,6 @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data)
     cc->cpu_exec_interrupt = x86_cpu_exec_interrupt;
 #endif
     cc->dump_state = x86_cpu_dump_state;
-    cc->get_crash_info = x86_cpu_get_crash_info;
     cc->set_pc = x86_cpu_set_pc;
     cc->synchronize_from_tb = x86_cpu_synchronize_from_tb;
     cc->gdb_read_register = x86_cpu_gdb_read_register;
@@ -7256,6 +7259,7 @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data)
     cc->asidx_from_attrs = x86_asidx_from_attrs;
     cc->get_memory_mapping = x86_cpu_get_memory_mapping;
     cc->get_phys_page_attrs_debug = x86_cpu_get_phys_page_attrs_debug;
+    cc->get_crash_info = x86_cpu_get_crash_info;
     cc->write_elf64_note = x86_cpu_write_elf64_note;
     cc->write_elf64_qemunote = x86_cpu_write_elf64_qemunote;
     cc->write_elf32_note = x86_cpu_write_elf32_note;
-- 
2.26.2

[PULL v2 17/19] target/s390x: Restrict CpuClass::get_crash_info() to system-mode

[Laurent Vivier]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200522172510.25784-12-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 target/s390x/cpu.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c
index ca50b7045198..08eb674d22b4 100644
--- a/target/s390x/cpu.c
+++ b/target/s390x/cpu.c
@@ -247,6 +247,7 @@ out:
     error_propagate(errp, err);
 }
 
+#if !defined(CONFIG_USER_ONLY)
 static GuestPanicInformation *s390_cpu_get_crash_info(CPUState *cs)
 {
     GuestPanicInformation *panic_info;
@@ -256,11 +257,7 @@ static GuestPanicInformation *s390_cpu_get_crash_info(CPUState *cs)
     panic_info = g_malloc0(sizeof(GuestPanicInformation));
 
     panic_info->type = GUEST_PANIC_INFORMATION_TYPE_S390;
-#if !defined(CONFIG_USER_ONLY)
     panic_info->u.s390.core = cpu->env.core_id;
-#else
-    panic_info->u.s390.core = 0; /* sane default for non system emulation */
-#endif
     panic_info->u.s390.psw_mask = cpu->env.psw.mask;
     panic_info->u.s390.psw_addr = cpu->env.psw.addr;
     panic_info->u.s390.reason = cpu->env.crash_reason;
@@ -286,6 +283,7 @@ static void s390_cpu_get_crash_info_qom(Object *obj, Visitor *v,
                                      errp);
     qapi_free_GuestPanicInformation(panic_info);
 }
+#endif
 
 static void s390_cpu_initfn(Object *obj)
 {
@@ -295,16 +293,16 @@ static void s390_cpu_initfn(Object *obj)
     cpu_set_cpustate_pointers(cpu);
     cs->halted = 1;
     cs->exception_index = EXCP_HLT;
+#if !defined(CONFIG_USER_ONLY)
     object_property_add(obj, "crash-information", "GuestPanicInformation",
                         s390_cpu_get_crash_info_qom, NULL, NULL, NULL);
-    s390_cpu_model_register_props(obj);
-#if !defined(CONFIG_USER_ONLY)
     cpu->env.tod_timer =
         timer_new_ns(QEMU_CLOCK_VIRTUAL, s390x_tod_timer, cpu);
     cpu->env.cpu_timer =
         timer_new_ns(QEMU_CLOCK_VIRTUAL, s390x_cpu_timer, cpu);
     s390_cpu_set_state(S390_CPU_STATE_STOPPED, cpu);
 #endif
+    s390_cpu_model_register_props(obj);
 }
 
 static void s390_cpu_finalize(Object *obj)
@@ -488,13 +486,13 @@ static void s390_cpu_class_init(ObjectClass *oc, void *data)
     cc->do_interrupt = s390_cpu_do_interrupt;
 #endif
     cc->dump_state = s390_cpu_dump_state;
-    cc->get_crash_info = s390_cpu_get_crash_info;
     cc->set_pc = s390_cpu_set_pc;
     cc->gdb_read_register = s390_cpu_gdb_read_register;
     cc->gdb_write_register = s390_cpu_gdb_write_register;
 #ifndef CONFIG_USER_ONLY
     cc->get_phys_page_debug = s390_cpu_get_phys_page_debug;
     cc->vmsd = &vmstate_s390_cpu;
+    cc->get_crash_info = s390_cpu_get_crash_info;
     cc->write_elf64_note = s390_cpu_write_elf64_note;
 #ifdef CONFIG_TCG
     cc->cpu_exec_interrupt = s390_cpu_exec_interrupt;
-- 
2.26.2

[PULL v2 18/19] hw/core: Restrict CpuClass::get_crash_info() to system-mode

[Laurent Vivier]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200522172510.25784-13-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 hw/core/cpu.c         | 2 ++
 include/hw/core/cpu.h | 7 ++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/hw/core/cpu.c b/hw/core/cpu.c
index 5284d384fb6b..f31ec48ee61e 100644
--- a/hw/core/cpu.c
+++ b/hw/core/cpu.c
@@ -209,6 +209,7 @@ static bool cpu_common_exec_interrupt(CPUState *cpu, int int_req)
     return false;
 }
 
+#if !defined(CONFIG_USER_ONLY)
 GuestPanicInformation *cpu_get_crash_info(CPUState *cpu)
 {
     CPUClass *cc = CPU_GET_CLASS(cpu);
@@ -219,6 +220,7 @@ GuestPanicInformation *cpu_get_crash_info(CPUState *cpu)
     }
     return res;
 }
+#endif
 
 void cpu_dump_state(CPUState *cpu, FILE *f, int flags)
 {
diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index 07f769815502..497600c49efa 100644
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -490,6 +490,8 @@ bool cpu_paging_enabled(const CPUState *cpu);
 void cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list,
                             Error **errp);
 
+#if !defined(CONFIG_USER_ONLY)
+
 /**
  * cpu_write_elf64_note:
  * @f: pointer to a function that writes memory to a file
@@ -539,6 +541,8 @@ int cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
  */
 GuestPanicInformation *cpu_get_crash_info(CPUState *cpu);
 
+#endif /* !CONFIG_USER_ONLY */
+
 /**
  * CPUDumpFlags:
  * @CPU_DUMP_CODE:
@@ -632,7 +636,8 @@ static inline int cpu_asidx_from_attrs(CPUState *cpu, MemTxAttrs attrs)
     }
     return ret;
 }
-#endif
+
+#endif /* CONFIG_USER_ONLY */
 
 /**
  * cpu_list_add:
-- 
2.26.2

[PULL v2 19/19] stubs: Restrict ui/win32-kbd-hook to system-mode

[Laurent Vivier]

From: Philippe Mathieu-Daudé <philmd@redhat.com>

In Makefile.objs, the ui/ directory is restricted to system-mode:

 43 ifeq ($(CONFIG_SOFTMMU),y)
 ...
 65 common-obj-y += ui/
 66 common-obj-m += ui/
 ...
 82 endif # CONFIG_SOFTMMU

Restrict the ui/ stub added in commit 2df9f5718df to only build
it for system-mode emulation.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200522172510.25784-14-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 stubs/Makefile.objs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index f54125de317d..c1e43ac68f87 100644
--- a/stubs/Makefile.objs
+++ b/stubs/Makefile.objs
@@ -23,7 +23,7 @@ stub-obj-y += sysbus.o
 stub-obj-y += tpm.o
 stub-obj-y += trace-control.o
 stub-obj-y += vmstate.o
-stub-obj-y += win32-kbd-hook.o
+stub-obj-$(CONFIG_SOFTMMU) += win32-kbd-hook.o
 
 #######################################################################
 # code used by both qemu system emulation and qemu-img
-- 
2.26.2

Re: [PULL v2 00/19] Linux user for 5.1 patches

[Peter Maydell]

On Sat, 6 Jun 2020 at 14:19, Laurent Vivier <laurent@vivier.eu> wrote:
>
> The following changes since commit ddc760832fa8cf5e93b9d9e6e854a5114ac63510:
>
>   Merge remote-tracking branch 'remotes/gkurz/tags/9p-next-2020-05-26' into s=
> taging (2020-05-26 14:05:53 +0100)
>
> are available in the Git repository at:
>
>   git://github.com/vivier/qemu.git tags/linux-user-for-5.1-pull-request
>
> for you to fetch changes up to 95722b27845b972250a7d4f93b693b01e2a0c3a1:
>
>   stubs: Restrict ui/win32-kbd-hook to system-mode (2020-06-05 21:23:22 +0200)
>
> ----------------------------------------------------------------
> linux-user pull request 20200605-v2
>
> Implement F_OFD_ fcntl() command, /proc/cpuinfo for hppa
> Fix socket(), prnctl() error codes, underflow in target_mremap,
>     epoll_create() strace, oldumount for alpha
> User-mode build dependencies improvement
>


Applied, thanks.

Please update the changelog at https://wiki.qemu.org/ChangeLog/5.1
for any user-visible changes.

-- PMM

[PULL v2 01/19] linux-user, alpha: fix oldumount syscall

[Laurent Vivier]

When we try to bootstrap debian/lenny for alpha, it fails because
it cannot umount /.root directory:

  ...
  Setting up initscripts (2.86.ds1-61) ...
  umount: /.root: Function not implemented
  dpkg: error processing initscripts (--configure):
   subprocess post-installation script returned error exit status 1
  dpkg: sysvinit: dependency problems, but configuring anyway as you request:
   sysvinit depends on initscripts; however:
    Package initscripts is not configured yet.

This is because, when we switched from syscall_nr.h to syscall.tbl,
the syscall #321 has been renamed from umount to oldumount and
syscall.c has not been updated to manage the new name.

oldumount has been introduced in linux 2.1.116pre1 by:
  7d32756b2 ("Import 2.1.116pre1")
...
 * We now support a flag for forced unmount like the other 'big iron'
 * unixes. Our API is identical to OSF/1 to avoid making a mess of AMD
...

Fixes: 6116aea994 ("linux-user, alpha: add syscall table generation support")
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200502194642.32823-1-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/syscall.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 05f03919ff07..e89b815ce983 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -8028,8 +8028,13 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
             }
         }
         return ret;
-#ifdef TARGET_NR_umount
+#if defined(TARGET_NR_umount) || defined(TARGET_NR_oldumount)
+#if defined(TARGET_NR_umount)
     case TARGET_NR_umount:
+#endif
+#if defined(TARGET_NR_oldumount)
+    case TARGET_NR_oldumount:
+#endif
         if (!(p = lock_user_string(arg1)))
             return -TARGET_EFAULT;
         ret = get_errno(umount(p));
-- 
2.26.2