We have protections that prevent callbacks that didn't declare themselves as wanting to access registers. However for discontinuities the system state is fully rectified so they should always be able to read the register values.
a1688bc86ce (plugins: add hooks for new discontinuity related callbacks) Signed-off-by: Alex Bennée <[email protected]> Cc: Julian Ganz <[email protected]> --- plugins/core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/plugins/core.c b/plugins/core.c index 8f8bc7219c2..b4b783008f7 100644 --- a/plugins/core.c +++ b/plugins/core.c @@ -119,6 +119,7 @@ static void plugin_vcpu_cb__discon(CPUState *cpu, struct qemu_plugin_cb *cb, *next; uint64_t to = cpu->cc->get_pc(cpu); + qemu_plugin_set_cb_flags(cpu, QEMU_PLUGIN_CB_RW_REGS); if (cpu->cpu_index < plugin.num_vcpus) { /* iterate safely; plugins might uninstall themselves at any time */ QLIST_FOREACH_SAFE_RCU(cb, &plugin.cb_lists[ev], entry, next) { @@ -127,6 +128,7 @@ static void plugin_vcpu_cb__discon(CPUState *cpu, func(cb->ctx->id, cpu->cpu_index, type, from, to); } } + qemu_plugin_set_cb_flags(cpu, QEMU_PLUGIN_CB_NO_REGS); } /* -- 2.47.3
