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2008-09-22Refactor AIO to allow multiple AIO implementationsaliguori
This patch refactors the AIO layer to allow multiple AIO implementations. It's only possible because of the recent signalfd() patch. Right now, the AIO infrastructure is pretty specific to the block raw backend. For other block devices to implement AIO, the qemu_aio_wait function must support registration. This patch introduces a new function, qemu_aio_set_fd_handler, which can be used to register a file descriptor to be called back. qemu_aio_wait() now polls a set of file descriptors registered with this function until one becomes readable or writable. This patch should allow the implementation of alternative AIO backends (via a thread pool or linux-aio) and AIO backends in non-traditional block devices (like NBD). Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5297 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-22Fix arguments used in cas/casx, thanks to Igor Kovalenko for spottingblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5296 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-22Add comment to windows SCSI hack.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5295 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-22Remove unnecessary call to qemu_aio_init (called from bdrv_init)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5294 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-22LSI SCSI: raise UDC on infinite loop (Marcelo Tosatti)aliguori
Raise UDC (Unexpected Disconnect) when a large enough number of instructions has been executed by the SCRIPTS processor. This "solution" is much simpler than temporarily interrupting execution. This remedies the situation with Windows which downloads SCRIPTS code that busy loops on guest main memory. Their drivers _do_ handle UDC appropriately (at least XP and 2003). It would be nicer to actually detect infinite loops, but until then, this bandaid seems acceptable. Since the situation seems to be rare enough, raise the number of instructions to 10000 (previously 1000). Three people other than myself had success with this patch. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5293 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-22scsi-generic: correct 6-bytes commands transfer length (Laurent Vivier)aliguori
According to SCSI documentation, for 6 bytes commands (READ(6), WRITE(6)), if transfer length is 0 it specifies 256 blocks. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5292 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-22scsi-generic: correct usage of memset() (Laurent Vivier)aliguori
void *memset(void *s, int c, size_t n); DESCRIPTION The memset() function fills the first n bytes of the memory area pointed to by s with the constant byte c." Reported by Dietmar Maurer. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5291 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-22Don't use sprintf() or strcpy()aliguori
They are unsafe. The current code is correct, but to be safer, we should pass an explicit size. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5290 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-22Do not allow AIO to be inited multiple timesaliguori
This prevents two signalfd() threads from being spawned. This problem was originally spotted by Blue Swirl. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5289 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-22Support out-of-the-tree building of testsmalc
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5288 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-22Avoid clobbering input register in qemu_ld64+bswap+useronly casemalc
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5287 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-22Fix ARM NEON vdup and vtbl bugs.pbrook
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5286 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-21Fix neon encoding comment.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5285 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-21Fix Xcontext fill, by Here Poussineau.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5284 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-21Use the new concat_tl_i64 op for std and stdablueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5283 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-21Add concat32_i64 and concat_tl_i64 opsblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5282 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-21Use the new concat_i32_i64 op for std and stdablueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5281 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-21Add concat_i32_i64 op.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5280 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-21Band-aid vfork() emulation (Kirill Shutemov).balrog
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5279 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-21Fix TEST_BSX operands in test-i386.c (Zeev Tarantov).balrog
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5278 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-21Enable same-arch consistency check on x86-64, print syscall name on error.balrog
Also disable testing instructions unsupported by 64-bit binutils in test-i386.c git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5277 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Move signal handler prototype back to cpu.hblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5276 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Suppress gcc 4.x -Wpointer-sign (included in -Wall) warningsblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5275 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Add signed versions of save/load functionsblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5274 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Fix QADD / QSUB decoding on ARM (Torbjörn Andersson).balrog
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5273 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Fix pread() and pwrite() syscall on ARM EABI (Kirill Shutemov).balrog
pread() and pwrite() have differences in arguments between ARM EABI and OABI. See arch/arm/kernel/entry-common.S in Linux kernel source for additional information. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5272 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Add MTIOCTOP, MTIOCGET and MTIOCPOS ioctls (Kirill Shutemov).balrog
Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5271 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Fix building with 2.6.27 kernel headers (Kirill Shutemov).balrog
<linux/dirent.h> unexported since 2.6.27 Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5270 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Implement the futimesat() syscall (by Kirill Shutemov).balrog
Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5269 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Implement fstatat64() syscall (by Kirill Shutemov).balrog
Move the transformation of struct stat64 into a separate function and implement fstatat64() using it. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5268 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Swap only altered elements of the grouplist in getgroups() (Kirill Shutemov).balrog
getgroups() returns the number of supplementary group IDs, so it's unnessary to swap the entire array. It can dramatically speed up the syscall: on recent Linux kernels NGROUPS_MAX=65536. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5267 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Fix getgroups() with zero size parameter (Kirill Shutemov).balrog
According to man page getgroups(2): If size is zero, list is not modified, but the total number of supplementary group IDs for the process is returned. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5266 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Use a QEMUBH when an OMAP timer must expire immediately.balrog
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5265 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Add a comment about masking of CTI interrupt in 16550A UART.balrog
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5264 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-20Allow attaching devices to OMAP UARTs.balrog
Also avoid two signedness warnings in hw/omap2.c. The API to attach new devices to serials is fine, bu the implementation is a hack. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5263 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18Update OpenBIOS images to SVN r237.blueswir1
Changes: r219: Fix #size-cells for HelenOS, add /openprom/version node r220: Fix typo r221: More realistic mmu_translate r222: Fix device names to allow Net/OpenBSD to boot r223: add set-callback for Aurora 2.0 r224: Switch keyboard controller to translated mode so it works as expected r225: Add mmu release (claim added in r219) r226: Set variable defaults before nvram_init also for Sparc64 (cf. r136) r227: Use nvram boot-args and boot-device variables also for Sparc64 (cf. r137) r228: Fix compilation on OpenBSD: avoid accidental system include file use r229: Rename /packages/client-iface to /openprom/client-services r230 From Igor V. Kovalenko: This openbios-grubfs-ext2fs-block.patch fixes a problem where inode pointer is truncated to 32bit integer and then sign-extended to 64bit integer while passing second pointer argument to ext2_rdfsb. r231: Fix pad alignment r232: Remove package finding code that finds unrelated packages r233: Fix virtual to physical address translation (Igor Kovalenko) r234: Implement itlb/dtlb directed writes (Igor Kovalenko) r235: Fix warnings that would be caused by ld flag --warn-common r236: Enable ld flag --warn-common r237: Use the firmware device introduced in Qemu SVN r5256 git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5262 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18Add Sparc32 display depth to firmware configurationblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5261 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18Add common keys to firmware configurationblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5260 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18Add UUID to firmware configuration info (Gleb Natapov)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5259 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18Add "info uuid" command to monitor (Gleb Natapov)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5258 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18Add -uuid command line option (Gleb Natapov)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5257 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18Key/value based qemu<->guest firmware communication mechanism (Gleb Natapov)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5256 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18target-alpha: switch most load/store ops to TCGaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5255 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18target-alpha: convert remaining arith3 functions to TCGaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5254 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18Use TCG registers for most CPU register accesses.ths
Signed-off-by: Thiemo Seufer <ths@networkno.de> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5253 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18Move the active FPU registers into env again, and use more TCG registersths
to access them. Signed-off-by: Thiemo Seufer <ths@networkno.de> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5252 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18target-alpha: fix one more literal sign issueaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5251 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18target-alpha: instruction decoding simplificationaurel32
Use a litteral value of 0 when rb31 is used. This reduces the tests in the instruction decoding. Also remove almost unused corner cases. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5250 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18target-alpha: convert cmp* instructions to TCGaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5249 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18alpha: fix a missing literal sign issueaurel32
Reported by Tristan Gingold git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5248 c046a42c-6fe2-441c-8c8c-71466251a162
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