| Message ID | 20240530194250.1801701-2-alex.bennee@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | cpus: a few tweaks to CPU realization | expand |
On 5/30/24 12:42, Alex Bennée wrote: > Make the relationship between CPUState, ArchCPU and cpu_env a bit > clearer in the kdoc comments. > > Signed-off-by: Alex Bennée <alex.bennee@linaro.org> > --- > include/hw/core/cpu.h | 14 ++++++++++---- > 1 file changed, 10 insertions(+), 4 deletions(-) > > diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h > index bb398e8237..35d345371b 100644 > --- a/include/hw/core/cpu.h > +++ b/include/hw/core/cpu.h > @@ -391,7 +391,8 @@ struct qemu_work_item; > #define CPU_UNSET_NUMA_NODE_ID -1 > > /** > - * CPUState: > + * struct CPUState - common state of one CPU core or thread. > + * > * @cpu_index: CPU index (informative). > * @cluster_index: Identifies which cluster this CPU is in. > * For boards which don't define clusters or for "loose" CPUs not assigned > @@ -439,10 +440,15 @@ struct qemu_work_item; > * @kvm_fetch_index: Keeps the index that we last fetched from the per-vCPU > * dirty ring structure. > * > - * State of one CPU core or thread. > + * @neg_align: The CPUState is the common part of a concrete ArchCPU > + * which is allocated when an individual CPU instance is created. As > + * such care is taken is ensure there is no gap between between > + * CPUState and CPUArchState within ArchCPU. > * > - * Align, in order to match possible alignment required by CPUArchState, > - * and eliminate a hole between CPUState and CPUArchState within ArchCPU. > + * @neg: The architectural register state ("cpu_env") immediately follows CPUState > + * in ArchCPU and is passed to TCG code. The @neg structure holds some > + * common TCG CPU variables which are accessed with a negative offset > + * from cpu_env. > */ > struct CPUState { > /*< private >*/ Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
On 30/5/24 21:42, Alex Bennée wrote: > Make the relationship between CPUState, ArchCPU and cpu_env a bit > clearer in the kdoc comments. > > Signed-off-by: Alex Bennée <alex.bennee@linaro.org> > --- > include/hw/core/cpu.h | 14 ++++++++++---- > 1 file changed, 10 insertions(+), 4 deletions(-) Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index bb398e8237..35d345371b 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -391,7 +391,8 @@ struct qemu_work_item; #define CPU_UNSET_NUMA_NODE_ID -1 /** - * CPUState: + * struct CPUState - common state of one CPU core or thread. + * * @cpu_index: CPU index (informative). * @cluster_index: Identifies which cluster this CPU is in. * For boards which don't define clusters or for "loose" CPUs not assigned @@ -439,10 +440,15 @@ struct qemu_work_item; * @kvm_fetch_index: Keeps the index that we last fetched from the per-vCPU * dirty ring structure. * - * State of one CPU core or thread. + * @neg_align: The CPUState is the common part of a concrete ArchCPU + * which is allocated when an individual CPU instance is created. As + * such care is taken is ensure there is no gap between between + * CPUState and CPUArchState within ArchCPU. * - * Align, in order to match possible alignment required by CPUArchState, - * and eliminate a hole between CPUState and CPUArchState within ArchCPU. + * @neg: The architectural register state ("cpu_env") immediately follows CPUState + * in ArchCPU and is passed to TCG code. The @neg structure holds some + * common TCG CPU variables which are accessed with a negative offset + * from cpu_env. */ struct CPUState { /*< private >*/
Make the relationship between CPUState, ArchCPU and cpu_env a bit clearer in the kdoc comments. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> --- include/hw/core/cpu.h | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-)