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 28f13bccbe fpu: allow flushing of output denormals to be after rounding Currently we handle flushing of output denormals in uncanon_normal always before we deal with rounding. This works for architectures that detect tininess before rounding, but is usually not the right place when the architecture detects tininess after rounding. For example, for x86 the SDM states that the MXCSR FTZ control bit causes outputs to be flushed to zero "when it detects a floating-point underflow condition". This means that we mustn't flush to zero if the input is such that after rounding it is no longer tiny. At least one of our guest architectures does underflow detection after rounding but flushing of denormals before rounding (MIPS MSA); this means we need to have a config knob for this that is separate from our existing tininess_before_rounding setting. Add an ftz_detection flag. For consistency with tininess_before_rounding, we make it default to "detect ftz after rounding"; this means that we need to explicitly set the flag to "detect ftz before rounding" on every existing architecture that sets flush_to_zero, so that this commit has no behaviour change. (This means more code change here but for the long term a less confusing API.) For several architectures the current behaviour is either definitely or possibly wrong; annotate those with TODO comments. These architectures are definitely wrong (and should detect ftz after rounding): * x86 * Alpha For these architectures the spec is unclear: * MIPS (for non-MSA) * RX * SH4 PA-RISC makes ftz detection IMPDEF, but we aren't setting the "tininess before rounding" setting that we ought to. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>		1 year ago
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hvf	i386/cpu: Extract a common fucntion to setup value of MSR_CORE_THREAD_COUNT	1 year ago
kvm	i386/cpu: Extract a common fucntion to setup value of MSR_CORE_THREAD_COUNT	1 year ago
nvmm	include: Rename sysemu/ -> system/	1 year ago
tcg	fpu: allow flushing of output denormals to be after rounding	1 year ago
whpx	include: Rename sysemu/ -> system/	1 year ago
Kconfig	i386: select correct components for no-board build	2 years ago
arch_dump.c	include: Rename sysemu/ -> system/	1 year ago
arch_memory_mapping.c	include: Rename sysemu/ -> system/	1 year ago
confidential-guest.c	target/i386: introduce x86-confidential-guest	2 years ago
confidential-guest.h	target/i386/confidential-guest: Fix comment of x86_confidential_guest_kvm_type()	1 year ago
cpu-apic.c	qapi: Move include/qapi/qmp/ to include/qobject/	1 year ago
cpu-dump.c	target/i386: remove CC_OP_CLR	1 year ago
cpu-internal.h	include: Rename sysemu/ -> system/	1 year ago
cpu-param.h	target/*: Remove TARGET_LONG_BITS from cpu-param.h	1 year ago
cpu-qom.h	target: Move ArchCPUClass definition to 'cpu.h'	2 years ago
cpu-system.c	qapi: Move include/qapi/qmp/ to include/qobject/	1 year ago
cpu.c	target/i386: Add new CPU model ClearwaterForest	1 year ago
cpu.h	target/i386: Add new CPU model ClearwaterForest	1 year ago
gdbstub.c	target/i386/gdbstub: Expose orig_ax	1 year ago
helper.c	accel/tcg: Move tcg_cflags_has/set() to 'exec/translation-block.h'	1 year ago
helper.h	target/i386: optimize computation of ZF from CC_OP_DYNAMIC	1 year ago
host-cpu.c	include: Rename sysemu/ -> system/	1 year ago
host-cpu.h	accel-cpu: make cpu_realizefn return a bool	5 years ago
machine.c	include: Rename sysemu/ -> system/	1 year ago
meson.build	include: Rename sysemu/ -> system/	1 year ago
monitor.c	qapi: Move include/qapi/qmp/ to include/qobject/	1 year ago
ops_sse.h	target/i386: set CC_OP in helpers if they want CC_OP_EFLAGS	2 years ago
sev-system-stub.c	include: Rename sysemu/ -> system/	1 year ago
sev.c	include: Rename sysemu/ -> system/	1 year ago
sev.h	target/i386/sev: Reduce system specific declarations	1 year ago
svm.h	target/i386: check intercept for XSETBV	2 years ago
trace-events	target/i386/sev: Use size_t for object sizes	2 years ago
trace.h	trace: switch position of headers to what Meson requires	6 years ago
xsave_helper.c	x86: add support for KVM_CAP_XSAVE2 and AMX state migration	4 years ago