riscv/qemu: QEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org - qemu

QEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org

emulation kvm qemu virtualization

History

Peter Maydell e784807cd2 target/arm: Do hflags rebuild in cpsr_write() Currently we rely on all the callsites of cpsr_write() to rebuild the cached hflags if they change one of the CPSR bits which we use as a TB flag and cache in hflags. This is a bit awkward when we want to change the set of CPSR bits that we cache, because it means we need to re-audit all the cpsr_write() callsites to see which flags they are writing and whether they now need to rebuild the hflags. Switch instead to making cpsr_write() call arm_rebuild_hflags() itself if one of the bits being changed is a cached bit. We don't do the rebuild for the CPSRWriteRaw write type, because that kind of write is generally doing something special anyway. For the CPSRWriteRaw callsites in the KVM code and inbound migration we definitely don't want to recalculate the hflags; the callsites in boot.c and arm-powerctl.c have to do a rebuild-hflags call themselves anyway because of other CPU state changes they make. This allows us to drop explicit arm_rebuild_hflags() calls in a couple of places where the only reason we needed to call it was the CPSR write. This fixes a bug where we were incorrectly failing to rebuild hflags in the code path for a gdbstub write to CPSR, which meant that you could make QEMU assert by breaking into a running guest, altering the CPSR to change the value of, for example, CPSR.E, and then continuing. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210817201843.3829-1-peter.maydell@linaro.org		5 years ago
..
nwfpe	softfloat: Introduce Floatx80RoundPrec	5 years ago
cpu_loop.c	linux-user/arm: Simplify accumulating and raising fpa11 exceptions	5 years ago
meson.build	semihosting: Move ARM semihosting code to shared directories	6 years ago
signal.c	target/arm: Do hflags rebuild in cpsr_write()	5 years ago
sockbits.h	linux-user: move socket.h generic definitions to generic/sockbits.h	8 years ago
syscall.tbl	linux-user: update syscall.tbl to Linux v5.13	5 years ago
syscallhdr.sh	linux-user, arm: add syscall table generation support	6 years ago
target_cpu.h	linux user: Fix Lesser GPL version number	6 years ago
target_elf.h	linux-user: Move CPU type name selection to a function	9 years ago
target_errno_defs.h	linux-user: Extract target errno to 'target_errno_defs.h'	5 years ago
target_fcntl.h	linux-user: move arm/aarch64/m68k fcntl definitions to [arm\|aarch64\|m68k]/target_fcntl.h	8 years ago
target_signal.h	linux-user: Correct definition of stack_t	6 years ago
target_structs.h	linux user: Fix Lesser GPL version number	6 years ago
target_syscall.h	linux-user: Add strace support for printing arguments of syscalls used to lock and unlock memory	6 years ago
termbits.h	linux-user: Add generic 'termbits.h' for some archs	6 years ago