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https://github.com/projectacrn/acrn-hypervisor.git
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be855d2352
Expose CAT feature to vCAT VM by reporting the number of cache ways/CLOSIDs via the 04H/10H cpuid instructions, so that the VM can take advantage of CAT to prioritize and partition cache resource for its own tasks. Add the vcat_pcbm_to_vcbm() function to map pcbm to vcbm Tracked-On: #5917 Signed-off-by: dongshen <dongsheng.x.zhang@intel.com> Acked-by: Eddie Dong <eddie.dong@Intel.com>
21 lines
549 B
C
21 lines
549 B
C
/*
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* Copyright (C) 2021 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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#ifndef VCAT_H_
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#define VCAT_H_
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#include <asm/guest/vm.h>
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bool is_l2_vcat_configured(const struct acrn_vm *vm);
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bool is_l3_vcat_configured(const struct acrn_vm *vm);
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uint16_t vcat_get_vcbm_len(const struct acrn_vm *vm, int res);
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void init_vcat_msrs(struct acrn_vcpu *vcpu);
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uint16_t vcat_get_num_vclosids(const struct acrn_vm *vm);
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uint64_t vcat_pcbm_to_vcbm(const struct acrn_vm *vm, uint64_t pcbm, int res);
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#endif /* VCAT_H_ */
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