From cd6ee56222610f3228caf10c4868bd8593532b0c Mon Sep 17 00:00:00 2001 From: Julian Ganz Date: Mon, 27 Oct 2025 11:03:25 +0000 Subject: [PATCH] target/microblaze: call plugin trap callbacks MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit We recently introduced API for registering callbacks for trap related events as well as the corresponding hook functions. Due to differences between architectures, the latter need to be called from target specific code. This change places the hook for MicroBlaze targets. This architecture has one special "exception" for interrupts and no host calls. Signed-off-by: Julian Ganz Reviewed-by: Philippe Mathieu-Daudé Message-ID: <20251027110344.2289945-19-alex.bennee@linaro.org> Signed-off-by: Alex Bennée --- target/microblaze/helper.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/target/microblaze/helper.c b/target/microblaze/helper.c index cf577a7226..a1857b7217 100644 --- a/target/microblaze/helper.c +++ b/target/microblaze/helper.c @@ -27,6 +27,7 @@ #include "qemu/host-utils.h" #include "exec/log.h" #include "exec/helper-proto.h" +#include "qemu/plugin.h" G_NORETURN @@ -35,6 +36,7 @@ static void mb_unaligned_access_internal(CPUState *cs, uint64_t addr, { CPUMBState *env = cpu_env(cs); uint32_t esr, iflags; + uint64_t last_pc = env->pc; /* Recover the pc and iflags from the corresponding insn_start. */ cpu_restore_state(cs, retaddr); @@ -54,6 +56,7 @@ static void mb_unaligned_access_internal(CPUState *cs, uint64_t addr, env->ear = addr; env->esr = esr; cs->exception_index = EXCP_HW_EXCP; + qemu_plugin_vcpu_exception_cb(cs, last_pc); cpu_loop_exit(cs); } @@ -152,6 +155,7 @@ void mb_cpu_do_interrupt(CPUState *cs) CPUMBState *env = &cpu->env; uint32_t t, msr = mb_cpu_read_msr(env); bool set_esr; + uint64_t last_pc = env->pc; /* IMM flag cannot propagate across a branch and into the dslot. */ assert((env->iflags & (D_FLAG | IMM_FLAG)) != (D_FLAG | IMM_FLAG)); @@ -256,6 +260,12 @@ void mb_cpu_do_interrupt(CPUState *cs) env->res_addr = RES_ADDR_NONE; env->iflags = 0; + if (cs->exception_index == EXCP_IRQ) { + qemu_plugin_vcpu_interrupt_cb(cs, last_pc); + } else { + qemu_plugin_vcpu_exception_cb(cs, last_pc); + } + if (!set_esr) { qemu_log_mask(CPU_LOG_INT, " to pc=%08x msr=%08x\n", env->pc, msr); -- 2.47.3