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target/i386: Split out x86_cpu_exec_reset

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Note that target/i386/cpu.h defines CPU_INTERRUPT_INIT
as CPU_INTERRUPT_RESET.  Therefore we can handle the
new TCGCPUOps.cpu_exec_reset hook.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2025-04-27 11:44:23 -07:00
parent 9181ab4528
commit c2d5897d3b
2 changed files with 24 additions and 26 deletions
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39
accel/tcg/cpu-exec.c
View file

@ -819,33 +819,22 @@ static inline bool cpu_handle_interrupt(CPUState *cpu,
cpu->exception_index = EXCP_HLT;
bql_unlock();
return true;
}
#if defined(TARGET_I386)
else if (interrupt_request & CPU_INTERRUPT_INIT) {
X86CPU *x86_cpu = X86_CPU(cpu);
CPUArchState *env = &x86_cpu->env;
replay_interrupt();
cpu_svm_check_intercept_param(env, SVM_EXIT_INIT, 0, 0);
do_cpu_init(x86_cpu);
cpu->exception_index = EXCP_HALTED;
bql_unlock();
return true;
}
#else
else if (interrupt_request & CPU_INTERRUPT_RESET) {
replay_interrupt();
cpu->cc->tcg_ops->cpu_exec_reset(cpu);
bql_unlock();
return true;
}
#endif /* !TARGET_I386 */
/* The target hook has 3 exit conditions:
False when the interrupt isn't processed,
True when it is, and we should restart on a new TB,
and via longjmp via cpu_loop_exit. */
else {
} else {
const TCGCPUOps *tcg_ops = cpu->cc->tcg_ops;
if (interrupt_request & CPU_INTERRUPT_RESET) {
replay_interrupt();
tcg_ops->cpu_exec_reset(cpu);
bql_unlock();
return true;
}
/*
* The target hook has 3 exit conditions:
* False when the interrupt isn't processed,
* True when it is, and we should restart on a new TB,
* and via longjmp via cpu_loop_exit.
*/
if (tcg_ops->cpu_exec_interrupt(cpu, interrupt_request)) {
if (!tcg_ops->need_replay_interrupt ||
tcg_ops->need_replay_interrupt(interrupt_request)) {

11
target/i386/tcg/tcg-cpu.c
View file

@ -120,6 +120,15 @@ static bool x86_debug_check_breakpoint(CPUState *cs)
/* RF disables all architectural breakpoints. */
return !(env->eflags & RF_MASK);
}
static void x86_cpu_exec_reset(CPUState *cs)
{
CPUArchState *env = cpu_env(cs);
cpu_svm_check_intercept_param(env, SVM_EXIT_INIT, 0, 0);
do_cpu_init(env_archcpu(env));
cs->exception_index = EXCP_HALTED;
}
#endif
#include "accel/tcg/cpu-ops.h"
@ -147,7 +156,7 @@ const TCGCPUOps x86_tcg_ops = {
.do_interrupt = x86_cpu_do_interrupt,
.cpu_exec_halt = x86_cpu_exec_halt,
.cpu_exec_interrupt = x86_cpu_exec_interrupt,
.cpu_exec_reset = cpu_reset,
.cpu_exec_reset = x86_cpu_exec_reset,
.do_unaligned_access = x86_cpu_do_unaligned_access,
.debug_excp_handler = breakpoint_handler,
.debug_check_breakpoint = x86_debug_check_breakpoint,