mirror of
https://github.com/projectacrn/acrn-hypervisor.git
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55bced400e
Make assert on max px cnt of boot cpu data, since it shouldn't happen if px data is properly initialized in boot process. Signed-off-by: Victor Sun <victor.sun@intel.com> Acked-by: Kevin Tian <kevin.tian@intel.com>
133 lines
3.6 KiB
C
133 lines
3.6 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <acrn_common.h>
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#include <hv_lib.h>
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#include <hv_arch.h>
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#include <hv_debug.h>
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int validate_pstate(struct vm *vm, uint64_t perf_ctl)
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{
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struct cpu_px_data *px_data;
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int i, px_cnt;
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if (is_vm0(vm)) {
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return 0;
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}
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px_cnt = vm->pm.px_cnt;
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px_data = vm->pm.px_data;
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if (!px_cnt || !px_data) {
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return -1;
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}
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for (i = 0; i < px_cnt; i++) {
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if ((px_data + i)->control == (perf_ctl & 0xffff)) {
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return 0;
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}
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}
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return -1;
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}
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static void vm_setup_cpu_px(struct vm *vm)
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{
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uint32_t px_data_size;
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vm->pm.px_cnt = 0;
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memset(vm->pm.px_data, 0, MAX_PSTATE * sizeof(struct cpu_px_data));
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if ((!boot_cpu_data.state_info.px_cnt)
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|| (!boot_cpu_data.state_info.px_data)) {
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return;
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}
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ASSERT ((boot_cpu_data.state_info.px_cnt <= MAX_PSTATE),
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"failed to setup cpu px");
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vm->pm.px_cnt = boot_cpu_data.state_info.px_cnt;
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px_data_size = vm->pm.px_cnt * sizeof(struct cpu_px_data);
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memcpy_s(vm->pm.px_data, px_data_size,
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boot_cpu_data.state_info.px_data, px_data_size);
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}
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static void vm_setup_cpu_cx(struct vm *vm)
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{
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uint32_t cx_data_size;
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vm->pm.cx_cnt = 0;
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memset(vm->pm.cx_data, 0, MAX_CSTATE * sizeof(struct cpu_cx_data));
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if ((!boot_cpu_data.state_info.cx_cnt)
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|| (!boot_cpu_data.state_info.cx_data)) {
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return;
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}
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ASSERT ((boot_cpu_data.state_info.cx_cnt <= MAX_CX_ENTRY),
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"failed to setup cpu cx");
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vm->pm.cx_cnt = boot_cpu_data.state_info.cx_cnt;
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cx_data_size = vm->pm.cx_cnt * sizeof(struct cpu_cx_data);
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/* please note pm.cx_data[0] is a empty space holder,
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* pm.cx_data[1...MAX_CX_ENTRY] would be used to store cx entry datas.
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*/
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memcpy_s(vm->pm.cx_data + 1, cx_data_size,
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boot_cpu_data.state_info.cx_data, cx_data_size);
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}
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static inline void init_cx_port(struct vm *vm)
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{
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uint8_t cx_idx;
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for (cx_idx = 2; cx_idx <= vm->pm.cx_cnt; cx_idx++) {
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struct cpu_cx_data *cx_data = vm->pm.cx_data + cx_idx;
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if (cx_data->cx_reg.space_id == SPACE_SYSTEM_IO) {
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uint16_t port = (uint16_t)cx_data->cx_reg.address;
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allow_guest_io_access(vm, port, 1);
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}
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}
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}
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void vm_setup_cpu_state(struct vm *vm)
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{
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vm_setup_cpu_px(vm);
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vm_setup_cpu_cx(vm);
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init_cx_port(vm);
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}
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