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69fef2e685
In some scenarios (e.g., nested) where lapic-pt is enabled for a vcpu running on a pcpu hosting console timer, the hv console will be inaccessible. This patch adds the console callback to every VM-exit event so that the console can still be somewhat functional under such circumstance. Since this is VM-exit driven, the VM-exit/second can be low in certain cases (e.g., idle or running stress workload). In extreme cases where the guest panics/hangs, there will be no VM-exits at all. In most cases, the shell is laggy but functional (probably enough for debugging purpose). Tracked-On: #6312 Signed-off-by: Yifan Liu <yifan1.liu@intel.com>
34 lines
670 B
C
34 lines
670 B
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <types.h>
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#include <pci.h>
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#include <console.h>
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size_t console_write(__unused const char *str, __unused size_t len)
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{
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return 0;
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}
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char console_getc(void)
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{
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return '\0';
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}
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void console_putc(__unused const char *ch) {}
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void console_init(void) {}
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void console_setup_timer(void) {}
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void suspend_console(void) {}
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void resume_console(void) {}
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bool handle_dbg_cmd(__unused const char *cmd, __unused int32_t len) { return false; }
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void console_vmexit_callback(__unused struct acrn_vcpu *vcpu) {}
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void shell_init(void) {}
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void shell_kick(void) {}
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