1d3e745f7a
These are only usable in system mode where we control the timer. For user-mode make them NOPs. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20250304222439.2035603-29-alex.bennee@linaro.org>
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/*
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* QEMU Plugin API - user-mode only implementations
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*
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* This provides the APIs that have a user-mode specific
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* implementations or are only relevant to user-mode.
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*
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* Copyright (C) 2017, Emilio G. Cota <cota@braap.org>
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* Copyright (C) 2019-2025, Linaro
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "qemu/osdep.h"
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#include "qemu/plugin.h"
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#include "exec/log.h"
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/*
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* Virtual Memory queries - these are all NOPs for user-mode which
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* only ever has visibility of virtual addresses.
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*/
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struct qemu_plugin_hwaddr *qemu_plugin_get_hwaddr(qemu_plugin_meminfo_t info,
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uint64_t vaddr)
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{
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return NULL;
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}
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bool qemu_plugin_hwaddr_is_io(const struct qemu_plugin_hwaddr *haddr)
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{
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return false;
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}
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uint64_t qemu_plugin_hwaddr_phys_addr(const struct qemu_plugin_hwaddr *haddr)
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{
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return 0;
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}
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const char *qemu_plugin_hwaddr_device_name(const struct qemu_plugin_hwaddr *h)
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{
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return g_intern_static_string("Invalid");
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}
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/*
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* Time control - for user mode the only real time is wall clock time
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* so realistically all you can do in user mode is slow down execution
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* which doesn't require the ability to mess with the clock.
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*/
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const void *qemu_plugin_request_time_control(void)
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{
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return NULL;
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}
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void qemu_plugin_update_ns(const void *handle, int64_t new_time)
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{
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qemu_log_mask(LOG_UNIMP, "user-mode can't control time");
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}
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