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path: root/target/xtensa/xtensa-semi.c
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2017-07-14char: add backend hotswap handlerAnton Nefedov
Frontends should have an interface to setup the handler of a backend change. The interface will be used in the next commits Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <1499342940-56739-3-git-send-email-anton.nefedov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-06target/xtensa: support output to chardev consoleMax Filippov
In semihosting mode QEMU allows guest to read and write host file descriptors directly, including descriptors 0..2, a.k.a. stdin, stdout and stderr. Sometimes it's desirable to have semihosting console controlled by -serial option, e.g. to connect it to network. Add semihosting console to xtensa-semi.c, open it in the 'sim' machine in the presence of -serial option and direct stdout and stderr to it when it's present. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2017-06-06target/xtensa: fix return value of read/write simcallsMax Filippov
Return value of read/write simcalls is not calculated correctly in case of operations crossing page boundary and in case of short reads/writes. Read and write simcalls should return the size of data actually read/written or -1 in case of error. Cc: qemu-stable@nongnu.org Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2017-06-06target/xtensa: fix mapping direction in read/write simcallsMax Filippov
Read and write simcalls map physical memory to access I/O buffers, but 'read' simcall need to map it for writing and 'write' simcall need to map it for reading, i.e. the opposite of what they do now. Fix that. Cc: qemu-stable@nongnu.org Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2017-03-11target/xtensa: fix semihosting argc/argv implementationMax Filippov
So far xtensa provides fixed dummy argc/argv for the corresponding semihosting calls. Now that there are semihosting_get_argc and semihosting_get_arg, use them to pass actual command line arguments to guest. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2016-12-20Move target-* CPU file into a target/ folderThomas Huth
We've currently got 18 architectures in QEMU, and thus 18 target-xxx folders in the root folder of the QEMU source tree. More architectures (e.g. RISC-V, AVR) are likely to be included soon, too, so the main folder of the QEMU sources slowly gets quite overcrowded with the target-xxx folders. To disburden the main folder a little bit, let's move the target-xxx folders into a dedicated target/ folder, so that target-xxx/ simply becomes target/xxx/ instead. Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part] Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part] Acked-by: Michael Walle <michael@walle.cc> [lm32 part] Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part] Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part] Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part] Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part] Acked-by: Richard Henderson <rth@twiddle.net> [alpha part] Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part] Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part] Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part] Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part] Signed-off-by: Thomas Huth <thuth@redhat.com>