SStefan Hajnoczisystem/cpus: rename qemu_mutex_lock_iothread() to bql_lock()
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meson: Introduce target-specific Kconfig Add a target-specific Kconfig. We need the definitions in Kconfig so the minikconf tool can verify they exits. However CONFIG_FOO is only enabled for target foo via the meson.build rules. Two architecture have a particularity, ARM and MIPS. As their translators have been split you can potentially build a plain 32 bit build along with a 64-bit version including the 32-bit subset. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210131111316.232778-6-f4bug@amsat.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20210707131744.26027-2-alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> | 4 年前 | |
target/openrisc: Remove NB_MMU_MODES define Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230306175230.7110-15-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> | 3 年前 | |
target: Move ArchCPUClass definition to 'cpu.h' The OBJECT_DECLARE_CPU_TYPE() macro forward-declares each ArchCPUClass type. These forward declarations are sufficient for code in hw/ to use the QOM definitions. No need to expose these structure definitions. Keep each local to their target/ by moving them to the corresponding "cpu.h" header. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20231013140116.255-13-philmd@linaro.org> | 2 年前 | |
target/openrisc: Use generic cpu_list() Before it's applied: [gshan@gshan q]$ ./build/qemu-or1k -cpu ? Available CPUs: or1200 any After it's applied: [gshan@gshan q]$ ./build/qemu-or1k -cpu ? Available CPUs: any or1200 Signed-off-by: Gavin Shan <gshan@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20231114235628.534334-17-gshan@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> | 2 年前 | |
target/openrisc: Use generic cpu_list() Before it's applied: [gshan@gshan q]$ ./build/qemu-or1k -cpu ? Available CPUs: or1200 any After it's applied: [gshan@gshan q]$ ./build/qemu-or1k -cpu ? Available CPUs: any or1200 Signed-off-by: Gavin Shan <gshan@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20231114235628.534334-17-gshan@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> | 2 年前 | |
meson: target Similar to hw_arch, each architecture defines two sourceset which are placed in dictionaries target_arch and target_softmmu_arch. These are then picked up from there when building the per-emulator static_library. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> | 5 年前 | |
compiler.h: replace QEMU_NORETURN with G_NORETURN G_NORETURN was introduced in glib 2.68, fallback to G_GNUC_NORETURN in glib-compat. Note that this attribute must be placed before the function declaration (bringing a bit of consistency in qemu codebase usage). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Warner Losh <imp@bsdimp.com> Message-Id: <20220420132624.2439741-20-marcandre.lureau@redhat.com> | 4 年前 | |
compiler.h: replace QEMU_NORETURN with G_NORETURN G_NORETURN was introduced in glib 2.68, fallback to G_GNUC_NORETURN in glib-compat. Note that this attribute must be placed before the function declaration (bringing a bit of consistency in qemu codebase usage). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Warner Losh <imp@bsdimp.com> Message-Id: <20220420132624.2439741-20-marcandre.lureau@redhat.com> | 4 年前 | |
compiler.h: replace QEMU_NORETURN with G_NORETURN G_NORETURN was introduced in glib 2.68, fallback to G_GNUC_NORETURN in glib-compat. Note that this attribute must be placed before the function declaration (bringing a bit of consistency in qemu codebase usage). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Warner Losh <imp@bsdimp.com> Message-Id: <20220420132624.2439741-20-marcandre.lureau@redhat.com> | 4 年前 | |
target/openrisc: Set PC to cpu state on FPU exception Store the PC to ensure the correct value can be read in the exception handler. Signed-off-by: Stafford Horne <shorne@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> | 3 年前 | |
gdbstub: move register helpers into standalone include These inline helpers are all used by target specific code so move them out of the general header so we don't needlessly pollute the rest of the API with target specific stuff. Note we have to include cpu.h in semihosting as it was relying on a side effect before. Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230302190846.2593720-21-alex.bennee@linaro.org> Message-Id: <20230303025805.625589-21-richard.henderson@linaro.org> | 3 年前 | |
target/openrisc: Implement unordered fp comparisons These were added to the 1.3 spec. For OF32S, validate AVR. But OF64A32 is itself new to 1.3 so no extra check needed. Reviewed-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> | 6 年前 | |
target/openrisc: Implement l.adrp This was added to the 1.3 spec. Reviewed-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> | 6 年前 | |
target/openrisc: Set EPCR to next PC on FPE exceptions The architecture specification calls for the EPCR to be set to "Address of next not executed instruction" when there is a floating point exception (FPE). This was not being done, so fix it by using the same pattern as syscall. Also, we move this logic down to be done for instructions not in the delay slot as called for by the architecture manual. Without this patch FPU exceptions will loop, as the exception handling will always return back to the failed floating point instruction. This was not noticed in earlier testing because: 1. The compiler usually generates code which clobbers the input operand such as: lf.div.s r19,r17,r19 2. The target will store the operation output before to the register before handling the exception. So an operation such as: float a = 100.0f; float b = 0.0f; float c = a / b; /* lf.div.s r19,r17,r19 */ Will first execute: 100 / 0 -> Store inf to c (r19) -> triggering divide by zero exception -> handle and return Then it will execute: 100 / inf -> Store 0 to c (no exception) To confirm the looping behavior and the fix I used the following: float fpu_div(float a, float b) { float c; asm volatile("lf.div.s %0, %1, %2" : "+r" (c) : "r" (a), "r" (b)); return c; } Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Stafford Horne <shorne@gmail.com> | 2 年前 | |
target/openrisc: Fix LGPL version number It's either "GNU *Library* General Public version 2" or "GNU Lesser General Public version *2.1*", but there was no "version 2.0" of the "Lesser" library. So assume that version 2.1 is meant here. Cc: Stafford Horne <shorne@gmail.com> Signed-off-by: Thomas Huth <thuth@redhat.com> Acked-by: Stafford Horne <shorne@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1548252536-6242-3-git-send-email-thuth@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu> | 7 年前 | |
target/openrisc: Constify VMState in machine.c Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20231221031652.119827-14-richard.henderson@linaro.org> | 2 年前 | |
meson: Rename target_softmmu_arch -> target_system_arch Finish the convertion started with commit de6cd7599b ("meson: Replace softmmu_ss -> system_ss"). If the $target_type is 'system', then use the target_system_arch[] source set :) Mechanical change doing: $ sed -i -e s/target_softmmu_arch/target_system_arch/g \ $(git grep -l target_softmmu_arch) Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20231004090629.37473-13-philmd@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> | 2 年前 | |
gdbstub: move register helpers into standalone include These inline helpers are all used by target specific code so move them out of the general header so we don't needlessly pollute the rest of the API with target specific stuff. Note we have to include cpu.h in semihosting as it was relying on a side effect before. Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230302190846.2593720-21-alex.bennee@linaro.org> Message-Id: <20230303025805.625589-21-richard.henderson@linaro.org> | 3 年前 | |
system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() The Big QEMU Lock (BQL) has many names and they are confusing. The actual QemuMutex variable is called qemu_global_mutex but it's commonly referred to as the BQL in discussions and some code comments. The locking APIs, however, are called qemu_mutex_lock_iothread() and qemu_mutex_unlock_iothread(). The "iothread" name is historic and comes from when the main thread was split into into KVM vcpu threads and the "iothread" (now called the main loop thread). I have contributed to the confusion myself by introducing a separate --object iothread, a separate concept unrelated to the BQL. The "iothread" name is no longer appropriate for the BQL. Rename the locking APIs to: - void bql_lock(void) - void bql_unlock(void) - bool bql_locked(void) There are more APIs with "iothread" in their names. Subsequent patches will rename them. There are also comments and documentation that will be updated in later patches. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Paul Durrant <paul@xen.org> Acked-by: Fabiano Rosas <farosas@suse.de> Acked-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Cédric Le Goater <clg@kaod.org> Acked-by: Peter Xu <peterx@redhat.com> Acked-by: Eric Farman <farman@linux.ibm.com> Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com> Acked-by: Hyman Huang <yong.huang@smartx.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Message-id: 20240102153529.486531-2-stefanha@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> | 2 年前 | |
accel/tcg: Replace CPUState.env_ptr with cpu_env() Reviewed-by: Anton Johansson <anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> | 2 年前 |