bwlp/qemu.git/target/xtensa, branch spice_video_codecs

accel/tcg: Remove will_exit argument from cpu_restore_state

2022-10-31T21:31:41+00:00

The value passed is always true, and if the target's synchronize_from_tb hook is non-trivial, not exiting may be erroneous. Reviewed-by: Claudio Fontana Signed-off-by: Richard Henderson

target/xtensa: Convert to tcg_ops restore_state_to_opc

2022-10-26T01:11:28+00:00

Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson

hw/core: Add CPUClass.get_pc

2022-10-04T19:13:12+00:00

Populate this new method for all targets. Always match the result that would be given by cpu_get_tb_cpu_state, as we will want these values to correspond in the logs. Reviewed-by: Taylor Simpson Reviewed-by: Alex Bennée Reviewed-by: Mark Cave-Ayland (target/sparc) Signed-off-by: Richard Henderson --- Cc: Eduardo Habkost (supporter:Machine core) Cc: Marcel Apfelbaum (supporter:Machine core) Cc: "Philippe Mathieu-Daudé" (reviewer:Machine core) Cc: Yanan Wang (reviewer:Machine core) Cc: Michael Rolnik (maintainer:AVR TCG CPUs) Cc: "Edgar E. Iglesias" (maintainer:CRIS TCG CPUs) Cc: Taylor Simpson (supporter:Hexagon TCG CPUs) Cc: Song Gao (maintainer:LoongArch TCG CPUs) Cc: Xiaojuan Yang (maintainer:LoongArch TCG CPUs) Cc: Laurent Vivier (maintainer:M68K TCG CPUs) Cc: Jiaxun Yang (reviewer:MIPS TCG CPUs) Cc: Aleksandar Rikalo (reviewer:MIPS TCG CPUs) Cc: Chris Wulff (maintainer:NiosII TCG CPUs) Cc: Marek Vasut (maintainer:NiosII TCG CPUs) Cc: Stafford Horne (odd fixer:OpenRISC TCG CPUs) Cc: Yoshinori Sato (reviewer:RENESAS RX CPUs) Cc: Mark Cave-Ayland (maintainer:SPARC TCG CPUs) Cc: Bastian Koppelmann (maintainer:TriCore TCG CPUs) Cc: Max Filippov (maintainer:Xtensa TCG CPUs) Cc: qemu-arm@nongnu.org (open list:ARM TCG CPUs) Cc: qemu-ppc@nongnu.org (open list:PowerPC TCG CPUs) Cc: qemu-riscv@nongnu.org (open list:RISC-V TCG CPUs) Cc: qemu-s390x@nongnu.org (open list:S390 TCG CPUs)

target/xtensa: Honour -semihosting-config userspace=on

2022-09-13T16:18:21+00:00

Honour the commandline -semihosting-config userspace=on option, instead of always permitting userspace semihosting calls in system emulation mode, by passing the correct value to the is_userspace argument of semihosting_enabled(). Note that this is a behaviour change: if the user wants to do semihosting calls from userspace they must now specifically enable them on the command line. xtensa semihosting is not implemented for linux-user builds. Signed-off-by: Peter Maydell Acked-by: Max Filippov Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Message-Id: <20220822141230.3658237-7-peter.maydell@linaro.org> Signed-off-by: Richard Henderson

semihosting: Allow optional use of semihosting from userspace

2022-09-13T16:18:21+00:00

Currently our semihosting implementations generally prohibit use of semihosting calls in system emulation from the guest userspace. This is a very long standing behaviour justified originally "to provide some semblance of security" (since code with access to the semihosting ABI can do things like read and write arbitrary files on the host system). However, it is sometimes useful to be able to run trusted guest code which performs semihosting calls from guest userspace, notably for test code. Add a command line suboption to the existing semihosting-config option group so that you can explicitly opt in to semihosting from guest userspace with -semihosting-config userspace=on (There is no equivalent option for the user-mode emulator, because there by definition all code runs in userspace and has access to semihosting already.) This commit adds the infrastructure for the command line option and adds a bool 'is_user' parameter to the function semihosting_userspace_enabled() that target code can use to check whether it should be permitting the semihosting call for userspace. It mechanically makes all the callsites pass 'false', so they continue checking "is semihosting enabled in general". Subsequent commits will make each target that implements semihosting honour the userspace=on option by passing the correct value and removing whatever "don't do this for userspace" checking they were doing by hand. Signed-off-by: Peter Maydell Acked-by: Alex Bennée Reviewed-by: Alistair Francis Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Message-Id: <20220822141230.3658237-2-peter.maydell@linaro.org> Signed-off-by: Richard Henderson

accel/tcg: Add pc and host_pc params to gen_intermediate_code

2022-09-06T07:04:26+00:00

Pass these along to translator_loop -- pc may be used instead of tb->pc, and host_pc is currently unused. Adjust all targets at one time. Acked-by: Alistair Francis Acked-by: Ilya Leoshkevich Tested-by: Ilya Leoshkevich Signed-off-by: Richard Henderson

Clean up decorations and whitespace around header guards

2022-05-11T14:50:32+00:00

Cleaned up with scripts/clean-header-guards.pl. Signed-off-by: Markus Armbruster Message-Id: <20220506134911.2856099-5-armbru@redhat.com> Reviewed-by: Richard Henderson

Normalize header guard symbol definition

2022-05-11T14:50:26+00:00

We commonly define the header guard symbol without an explicit value. Normalize the exceptions. Done with scripts/clean-header-guards.pl. Signed-off-by: Markus Armbruster Message-Id: <20220506134911.2856099-4-armbru@redhat.com> Reviewed-by: Richard Henderson

Clean up header guards that don't match their file name

2022-05-11T14:49:06+00:00

Header guard symbols should match their file name to make guard collisions less likely. Cleaned up with scripts/clean-header-guards.pl, followed by some renaming of new guard symbols picked by the script to better ones. Signed-off-by: Markus Armbruster Message-Id: <20220506134911.2856099-2-armbru@redhat.com> Reviewed-by: Richard Henderson [Change to generated file ebpf/rss.bpf.skeleton.h backed out]

target/xtensa: implement cache test option opcodes

2022-05-06T22:37:10+00:00

We don't model caches, so for l*ct opcodes return tags with all bits (including Valid) set to 0. For all other opcodes don't do anything. Signed-off-by: Max Filippov