From 1d3e745f7ada921d544f29fbf84c6f0f63025e61 Mon Sep 17 00:00:00 2001 From: Alex Bennée Date: Tue, 4 Mar 2025 22:24:35 +0000 Subject: plugins/api: split out time control helpers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit These are only usable in system mode where we control the timer. For user-mode make them NOPs. Reviewed-by: Richard Henderson Signed-off-by: Alex Bennée Message-Id: <20250304222439.2035603-29-alex.bennee@linaro.org> --- plugins/api-user.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'plugins/api-user.c') diff --git a/plugins/api-user.c b/plugins/api-user.c index 867b420339..28704a89e8 100644 --- a/plugins/api-user.c +++ b/plugins/api-user.c @@ -12,6 +12,7 @@ #include "qemu/osdep.h" #include "qemu/plugin.h" +#include "exec/log.h" /* * Virtual Memory queries - these are all NOPs for user-mode which @@ -38,3 +39,19 @@ const char *qemu_plugin_hwaddr_device_name(const struct qemu_plugin_hwaddr *h) { return g_intern_static_string("Invalid"); } + +/* + * Time control - for user mode the only real time is wall clock time + * so realistically all you can do in user mode is slow down execution + * which doesn't require the ability to mess with the clock. + */ + +const void *qemu_plugin_request_time_control(void) +{ + return NULL; +} + +void qemu_plugin_update_ns(const void *handle, int64_t new_time) +{ + qemu_log_mask(LOG_UNIMP, "user-mode can't control time"); +} -- cgit 1.4.1