- 24 10月, 2016 23 次提交
-
-
由 Marc-André Lureau 提交于
The CharDriverState.init() callback is no longer set since commit a61ae7f8 and thus unused. The only user, the malta FGPA display has been converted to use an event "opened" callback instead. Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20161022095318.17775-7-marcandre.lureau@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Marc-André Lureau 提交于
The CharDriverState.init() callback was introduced in commit ceecf1d1. It is only called from text_console_do_init(), but it is no longer set since commit a61ae7f8 (init assignment has been removed by accident). It seems correct to use an event callback instead and print the console text on CHR_EVENT_OPENED. That way we can remove the single user of CharDriverState init(). Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20161022095318.17775-6-marcandre.lureau@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Marc-André Lureau 提交于
Since commit b6607a1a, serial_hds_isa_init() was introduced to factor out serial_isa_init() loops. However, sun4uv shouldn't start from 0 when there is a mm serial on 0 already. Add a "from" argument to serial_hds_isa_init(). Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20161022095318.17775-5-marcandre.lureau@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Marc-André Lureau 提交于
It should return the number of written bytes. Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20161022095318.17775-4-marcandre.lureau@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Marc-André Lureau 提交于
Found by reviewing the code, win_stdio_close() is called by qemu_chr_free() which then call qemu_chr_free_common() taking care of freeing CharDriverState*. Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20161022095318.17775-3-marcandre.lureau@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Marc-André Lureau 提交于
DEFINE_PROP_CHR is not used (rng is not of TYPE_DEVICE) Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20161022095318.17775-2-marcandre.lureau@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Marc-André Lureau 提交于
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20161011152012.3228-1-marcandre.lureau@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Prasad J Pandit 提交于
16550A UART device uses an oscillator to generate frequencies (baud base), which decide communication speed. This speed could be changed by dividing it by a divider. If the divider is greater than the baud base, speed is set to zero, leading to a divide by zero error. Add check to avoid it. Reported-by: NHuawei PSIRT <psirt@huawei.com> Signed-off-by: NPrasad J Pandit <pjp@fedoraproject.org> Message-Id: <1476251888-20238-1-git-send-email-ppandit@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Paolo Bonzini 提交于
Avoid walking the FlatView of all address spaces. Most of the address spaces will have no log_sync callback on their listeners. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Paolo Bonzini 提交于
Only return a nonzero dirty_log_mask for RAM/ROM memory regions. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Paolo Bonzini 提交于
This speeds up MEMORY_LISTENER_CALL noticeably. Right now, with many PCI devices you have N regions added to M AddressSpaces (M = # PCI devices with bus-master enabled) and each call looks up the whole listener list, with at least M listeners in it. Because most of the regions in N are BARs, which are also roughly proportional to M, the whole thing is O(M^3). This changes it to O(M^2), which is the best we can do without rewriting the whole thing. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Paolo Bonzini 提交于
There is none, so just drop the code. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Paolo Bonzini 提交于
This comes from free from unifying tcg_reg_alloc_mov and tcg_reg_alloc_movi's handling of TEMP_VAL_CONST. It triggers often on moves to cc_dst, such as the following translation of "sub $0x3c,%esp": before: after: subl $0x3c,%ebp subl $0x3c,%ebp movl %ebp,0x10(%r14) movl %ebp,0x10(%r14) movl $0x3c,%ebx movl $0x3c,0x2c(%r14) movl %ebx,0x2c(%r14) Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Message-Id: <1473945360-13663-1-git-send-email-pbonzini@redhat.com> Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Paolo Bonzini 提交于
This was found with test-i386. The issue is that instructions such as addr32 lea (%eax), %rax did not perform a 32-bit extension, because the LEA translation skipped the gen_lea_v_seg step. That step does not just add segments, it also takes care of extending from address size to pointer size. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Emilio G. Cota 提交于
test_start/stop are used only as flags to loop on. Barriers are unnecessary, since no dependent data is transferred among threads apart from the flags themselves. This commit relaxes the three accesses to test_start/stop that were not yet relaxed. Signed-off-by: NEmilio G. Cota <cota@braap.org>
-
由 Paolo Bonzini 提交于
This introduces load-acquire and store-release operations in QEMU. For now, just use them as an implementation detail of atomic_mb_read and atomic_mb_set. Since docs/atomics.txt documents that atomic_mb_read only synchronizes with an atomic_mb_set of the same variable, we can use the new implementation everywhere instead of seq-cst loads and stores. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Paolo Bonzini 提交于
Thanks to the acquire semantics of qemu_event_reset and qemu_event_wait, some memory barriers can be removed. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Paolo Bonzini 提交于
Do not use the somewhat mysterious atomic_mb_read/atomic_mb_set, instead make sure that the operations on QemuEvent are annotated with the desired acquire and release semantics. In particular, qemu_event_set wakes up the waiting thread, so it must be a release from the POV of the waker (compare with qemu_mutex_unlock). And it actually needs a full barrier, because that's the only thing that provides something like a "load-release". Use smp_mb_acquire until we have atomic_load_acquire and atomic_store_release in atomic.h. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Thomas Huth 提交于
The output string QEMU with "--version" is very long, it does not fit into a normal line of a terminal window anymore. By putting the copyright information on a separate line instead, the output looks much nicer. Signed-off-by: NThomas Huth <thuth@redhat.com> Message-Id: <1475661284-30153-1-git-send-email-thuth@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Roy Shterman 提交于
iSER is a new transport layer supported in Libiscsi, iSER provides a zero-copy RDMA capable interface that can improve performance. In order to use the new iSER transport one need to have RDMA supported HW and to choose iser as the protocol name in Libiscsi URI. For now iSER memory buffers are pre-allocated and pre-registered, hence in order to work with iSER from QEMU, one need to enable MEMLOCK attribute in the VM to be large enough for all iSER buffers and RDMA resources. Signed-off-by: NRoy Shterman <roysh@mellanox.com> Message-Id: <1476000896-18632-3-git-send-email-roysh@mellanox.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Roy Shterman 提交于
A new API to deploy zero-copy command submission. The new API takes I/O vectors list and number of I/O vectors to submit as input parameters when initiating the command. New API must be used if working with iSER transport option. Signed-off-by: NRoy Shterman <roysh@mellanox.com> Message-Id: <1476000896-18632-2-git-send-email-roysh@mellanox.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
- 23 10月, 2016 2 次提交
-
-
由 Paolo Bonzini 提交于
Otherwise, reads of more than 2GB fail. Until commit 7bbca9e2, reads of 2^41 bytes succeeded at least theoretically. In fact, pdiscard ought to receive a 64-bit integer as the count for the same reason. Reported by Coverity. Fixes: 7bbca9e2 Cc: qemu-stable@nongnu.org Cc: kwolf@redhat.com Cc: eblake@redhat.com Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
由 Alex Bennée 提交于
The changes to run_on_cpu and friends mean that all helpers are passed the CPUState of vCPU they are running on. The conversion missed the field in commit e0eeb4a2 which introduced bugs. Reported-by: NClaudio Imbrenda <imbrenda@linux.vnet.ibm.com> Tested-by: NClaudio Imbrenda <imbrenda@linux.vnet.ibm.com> Signed-off-by: NAlex Bennée <alex.bennee@linaro.org> Message-Id: <20161010154625.14881-1-alex.bennee@linaro.org> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
-
- 21 10月, 2016 15 次提交
-
-
由 Peter Maydell 提交于
Linux-user changes, mostly bugfixes and adding support for some new syscalls and some obscure syscalls as well. Includes some missed patches from earlier rounds, and dropping unicore32 target. v2: fix the syslog patch and test build with clang-3.8 v3: drop ustat patch # gpg: Signature made Fri 21 Oct 2016 13:38:06 BST # gpg: using RSA key 0xB44890DEDE3C9BC0 # gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>" # gpg: aka "Riku Voipio <riku.voipio@linaro.org>" # Primary key fingerprint: FF82 03C8 C391 98AE 0581 41EF B448 90DE DE3C 9BC0 * remotes/riku/tags/pull-linux-user-20160921: (21 commits) linux-user: disable unicore32 linux-user build linux-user: added support for pwritev() system call. linux-user: added support for preadv() system call. linux-user: Fix fadvise64() syscall support for Mips32 linux-user: Redirect termbits.h for Mips64 to termbits.h for Mips32 linux-user: Update ioctls definitions for Mips32 linux-user: Update mips_syscall_args[] array in main.c linux-user: Add support for syncfs() syscall linux-user: Add support for clock_adjtime() syscall linux-user: Fix definition of target_sigevent for 32-bit guests linux-user: use libc wrapper instead of direct mremap syscall linux-user: Don't use alloca() for epoll_wait's epoll event array linux-user: add RTA_PRIORITY in netlink linux-user: add kcmp() syscall linux-user: sparc64: Use correct target SHMLBA in shmat() linux-user: Remove a duplicate item from strace.list linux-user: Fix syslog() syscall support linux-user: Fix socketcall() syscall support linux-user: Fix msgrcv() and msgsnd() syscalls support linux-user: Fix mq_open() syscall support ... Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
-
由 Riku Voipio 提交于
In order to cleanup linux-user, we need support for most relatively modern syscalls. unicore32 lacks support for syscalls like epoll_pwait, preventing cleaning up the CONFIG_EPOLL mess. This patch can be reverted when unicore32 starts either supporting the syscalls as defined in mainline kernel, or the oldabi interface gains support for syscalls supported since at kernel 2.6.19 / glibc 2.6 Cc: MPRC <zhangheng@mprc.pku.edu.cn> Cc: Xuetao Guan <gxt@mprc.pku.edu.cn> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-
由 Dejan Jovicevic 提交于
This system call performs the same task as the writev() system call, with the exception of having the fourth argument, offset, which specifes the file offset at which the input operation is to be performed. Because of this, the pwritev() implementation is based on the writev() implementation in linux-user mode. But, since pwritev() is implemented in the kernel as a 5-argument syscall, 5 arguments are needed to be handled as input and passed to the host syscall. The pos_l and pos_h argument of the safe_pwritev() are of type unsigned long, which can be of different sizes on different platforms. The input arguments are converted to the appropriate host size when passed to safe_pwritev(). Signed-off-by: NDejan Jovicevic <dejan.jovicevic@rt-rk.com> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-
由 Dejan Jovicevic 提交于
This system call performs the same task as the readv() system call, with the exception of having the fourth argument, offset, which specifes the file offset at which the input operation is to be performed. Because of this, the preadv() implementation is based on the readv() implementation in linux-user mode. But, since preadv() is implemented in the kernel as a 5-argument syscall, 5 arguments are needed to be handled as input and passed to the host syscall. The pos_l and pos_h argument of the safe_preadv() are of type unsigned long, which can be of different sizes on different platforms. The input arguments are converted to the appropriate host size when passed to safe_preadv(). Signed-off-by: NDejan Jovicevic <dejan.jovicevic@rt-rk.com> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-
由 Aleksandar Markovic 提交于
By looking at the file arch/mips/kernel/scall32-o32.S in Linux kernel, it can be deduced that, for Mips32 platform, syscall corresponding to number _NR_fadvise64 as defined in kernel file arch/mips/include/uapi/asm/unistd.h translates to kernel function sys_fadvise64_64, and that argument layout for this system call is as follows: 0 32 0 32 +----------------+----------------+ (arg1) | fd | __pad | (arg2) +----------------+----------------+ (arg3) | buffer | (arg4) +----------------+----------------+ (arg5) | len | (arg6) +----------------+----------------+ (arg7) | advise | not used | (arg8) +----------------+----------------+ The same argument layout can be deduced from glibc code, and relevant commit messages in linux kernel and glibc. The fix is to change TARGET_NR_fadvise64 to TARGET_NR_fadvise64_64 in Mips32 syscall numbers table. Array mips_syscall_args[] in linux-user/main.c also already have "fadvise64_64" (and not "fadvise64") in corresponding place for the syscall number in question, so no change for linux-user/main.c. This patch also fixes the failure LTP test posix_fadvise03, if executed on Qemu-emulated Mips32 platform (user mode). Signed-off-by: NAleksandar Rikalo <aleksandar.rikalo@imgtec.com> Signed-off-by: NMiroslav Tisma <miroslav.tisma@imgtec.com> Signed-off-by: NAleksandar Markovic <aleksandar.markovic@imgtec.com> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-
由 Aleksandar Markovic 提交于
linux-user/mips64/termbits.h and linux-user/mips/termbits.h originate from the same files in Linux kernel. There is no plan to split original headers in Linux kernel into Mips32 and Mips64 versions any time soon. Therefore, it is better not to have separate Mips32 and Mips64 variants in Qemu. This patch makes these two files effectively the same, allowing the mainenance by changing only a single file. (This is already done in the same fashion for some other headers in same directories.) Signed-off-by: NAleksandar Markovic <aleksandar.markovic@imgtec.com> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-
由 Aleksandar Markovic 提交于
Update linux-user/mips/termbits.h with ioctl definitions from kernel file arch/mips/include/uapi/asm/ioctls.h. Signed-off-by: NAleksandar Markovic <aleksandar.markovic@imgtec.com> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-
由 Aleksandar Markovic 提交于
Array mips_syscall_args[] determines number of arguments for each syscall on Mips32. It wasn't updated with newer syscalls. Also, preadv and pwritev have 5 arguments, not 6. Signed-off-by: NAleksandar Markovic <aleksandar.markovic@imgtec.com> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-
由 Aleksandar Markovic 提交于
This patch implements Qemu user mode syncfs() syscall support. Syscall syncfs() syncs the filesystem containing file determined by the open file descriptor passed as the argument to syncfs(). The implementation consists of a straightforward invocation of host's syncfs(). Configure and strace support is included as well. Signed-off-by: NAleksandar Markovic <aleksandar.markovic@imgtec.com> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-
由 Aleksandar Markovic 提交于
This patch implements Qemu user mode clock_adjtime() syscall support. The implementation is based on invocation of host's clock_adjtime(). Signed-off-by: NAleksandar Rikalo <aleksandar.rikalo@imgtec.com> Signed-off-by: NAleksandar Markovic <aleksandar.markovic@imgtec.com> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-
由 Peter Maydell 提交于
The sigevent structure includes a union with some fields which are pointers. For the QEMU target_sigevent structure we must represent these as abi_ulongs, not host function pointers. This error was causing the compiler to believe it should 8-align the _sigev_un union on a 64-bit host, which meant that the code in target_to_host_sigevent() was looking at the wrong offset to find the _tid field, and timer_create() would spuriously fail with EINVAL. This fixes the final loose end noted in LP:1042388. While we're editing the structure, switch the 'int32_t' fields to 'abi_int'; this will only matter for guests with non-standard integer alignment like m68k. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-
由 Felix Janda 提交于
This commit essentially reverts commit 3af72a4d, which has replaced five-argument calls to mremap() by direct mremap syscalls for compatibility with glibc older than version 2.4. The direct syscall was buggy for 64bit targets on 32bit hosts because of the default integer type promotions. Since glibc-2.4 is now a decade old, we can remove this workaround. Signed-off-by: NFelix Janda <felix.janda@posteo.de> Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-
由 Peter Maydell 提交于
The epoll event array which epoll_wait() allocates has a size determined by the guest which could potentially be quite large. Use g_try_new() rather than alloca() so that we can fail more cleanly if the guest hands us an oversize value. (ENOMEM is not a documented return value for epoll_wait() but in practice some kernel configurations can return it -- see for instance sys_oabi_epoll_wait() on ARM.) This rearrangement includes fixing a bug where we were incorrectly passing a negative length to unlock_user() in the error-exit codepath. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-
由 Laurent Vivier 提交于
Used by fedora21 on ppc64 in the network initialization Signed-off-by: NLaurent Vivier <laurent@vivier.eu> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-
由 Laurent Vivier 提交于
Signed-off-by: NLaurent Vivier <laurent@vivier.eu> Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
-