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https://github.com/projectacrn/acrn-hypervisor.git
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67038794af
MISRA-C requires that each parameter in the MACRO shall be in brackets. In some cases, adding brackets for all of the parameters may not be a perfect solution. For example, it may affect the code readability when there are many parameters used in the MACRO. And duplicated brackets will appear when one MACRO called another MACRO which is using same parameters. This patch convert some MACROs to inline functions to avoid such cases. v1 -> v2: * Remove the unnecessary changes in hypervisor/bsp/uefi/efi/boot.h Tracked-On: #861 Signed-off-by: Shiqing Gao <shiqing.gao@intel.com> Reviewed-by: Junjie Mao <junjie.mao@intel.com>
78 lines
1.6 KiB
C
78 lines
1.6 KiB
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 <hypervisor.h>
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#include <ucode.h>
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uint64_t get_microcode_version(void)
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{
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uint64_t val;
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uint32_t eax = 0U, ebx = 0U, ecx = 0U, edx = 0U;
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msr_write(MSR_IA32_BIOS_SIGN_ID, 0U);
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cpuid(CPUID_FEATURES, &eax, &ebx, &ecx, &edx);
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val = msr_read(MSR_IA32_BIOS_SIGN_ID);
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return val;
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}
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/*
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* According to SDM vol 3 Table 9-7. If data_size field of uCode
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* header is zero, the ucode length is 2000
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*/
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static inline size_t get_ucode_data_size(struct ucode_header *uhdr)
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{
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return ((uhdr->data_size != 0U) ? uhdr->data_size : 2000U);
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}
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void acrn_update_ucode(struct vcpu *vcpu, uint64_t v)
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{
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uint64_t gva, fault_addr;
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struct ucode_header uhdr;
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uint32_t data_page_num;
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size_t data_size;
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uint8_t *ucode_ptr;
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int err;
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uint32_t err_code;
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gva = v - sizeof(struct ucode_header);
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err_code = 0U;
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err = copy_from_gva(vcpu, &uhdr, gva, sizeof(uhdr), &err_code,
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&fault_addr);
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if (err < 0) {
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if (err == -EFAULT) {
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vcpu_inject_pf(vcpu, fault_addr, err_code);
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}
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return;
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}
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data_size = get_ucode_data_size(&uhdr) + sizeof(struct ucode_header);
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data_page_num =
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((data_size + CPU_PAGE_SIZE) - 1U) >> CPU_PAGE_SHIFT;
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ucode_ptr = alloc_pages(data_page_num);
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if (ucode_ptr == NULL) {
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return;
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}
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err_code = 0U;
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err = copy_from_gva(vcpu, ucode_ptr, gva, data_size, &err_code,
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&fault_addr);
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if (err < 0) {
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if (err == -EFAULT) {
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vcpu_inject_pf(vcpu, fault_addr, err_code);
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}
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return;
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}
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msr_write(MSR_IA32_BIOS_UPDT_TRIG,
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(uint64_t)ucode_ptr + sizeof(struct ucode_header));
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get_microcode_version();
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free(ucode_ptr);
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}
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