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https://github.com/projectacrn/acrn-hypervisor.git
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a72bd5e076
Move phys_cpu_num and pcpu_active_bitmap to common, which could be only accessed by interfaces provided by smp.h. v2->v3: 1. move ALL_CPUS_MASK/AP_MASK to common cpu.h v1->v2: 1. preserve phys_cpu_num in x86 but implement arch_get_num_available_cpus() to provide interface for common code to access. 2. change function name test_xx to check_xx Tracked-On: #8801 Signed-off-by: hangliu1 <hang1.liu@intel.com> Reviewed-by: Wang, Yu1 <yu1.wang@intel.com> Reviewed-by: Liu, Yifan1 <yifan1.liu@intel.com> Acked-by: Wang, Yu1 <yu1.wang@intel.com>
42 lines
866 B
C
42 lines
866 B
C
/*
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* SHARED BUFFER
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*
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* Copyright (C) 2017-2022 Intel Corporation.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Li Fei <fei1.li@intel.com>
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*
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*/
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#include <types.h>
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#include <rtl.h>
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#include <errno.h>
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#include <asm/cpu.h>
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#include <per_cpu.h>
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#include <cpu.h>
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int32_t sbuf_share_setup(uint16_t pcpu_id, uint32_t sbuf_id, uint64_t *hva)
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{
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if ((pcpu_id >= get_pcpu_nums()) || (sbuf_id >= ACRN_SBUF_PER_PCPU_ID_MAX)) {
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return -EINVAL;
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}
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per_cpu(sbuf, pcpu_id)[sbuf_id] = (struct shared_buf *) hva;
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pr_info("%s share sbuf for pCPU[%u] with sbuf_id[%u] setup successfully",
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__func__, pcpu_id, sbuf_id);
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return 0;
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}
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void sbuf_reset(void)
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{
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uint16_t pcpu_id, sbuf_id;
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for (pcpu_id = 0U; pcpu_id < get_pcpu_nums(); pcpu_id++) {
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for (sbuf_id = 0U; sbuf_id < ACRN_SBUF_PER_PCPU_ID_MAX; sbuf_id++) {
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per_cpu(sbuf, pcpu_id)[sbuf_id] = 0U;
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}
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}
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}
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