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cpu: Introduce CPU model deprecation API

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Implement the ability of marking some versions deprecated. When
that CPU model is chosen, print a warning.  The warning message
can be customized, e.g. suggesting an alternative CPU model to be
used instead.

The deprecation message will be printed by x86_cpu_list_entry(),
e.g. '-cpu help'.

QMP command 'query-cpu-definitions' will return a bool value
indicating the deprecation status.

Signed-off-by: Robert Hoo <robert.hu@linux.intel.com>
Message-Id: <1600758855-80046-1-git-send-email-robert.hu@linux.intel.com>
[ehabkost: reword commit message]
[ehabkost: Handle NULL cpu_type]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Robert Hoo 2020-09-22 15:14:14 +08:00 • committed by Eduardo Habkost
parent 31c707fb4d
commit 61ad65d0f0
4 changed files with 27 additions and 3 deletions
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3
include/hw/core/cpu.h
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@ -155,6 +155,8 @@ struct TranslationBlock;
* @disas_set_info: Setup architecture specific components of disassembly info
* @adjust_watchpoint_address: Perform a target-specific adjustment to an
* address before attempting to match it against watchpoints.
* @deprecation_note: If this CPUClass is deprecated, this field provides
* related information.
*
* Represents a CPU family or model.
*/
@ -221,6 +223,7 @@ struct CPUClass {
vaddr (*adjust_watchpoint_address)(CPUState *cpu, vaddr addr, int len);
void (*tcg_initialize)(void);
const char *deprecation_note;
/* Keep non-pointer data at the end to minimize holes. */
int gdb_num_core_regs;
bool gdb_stop_before_watchpoint;