hv: refine coding style for ucode.c
- reduce exit points for 'acrn_update_ucode()' function. Tracked-On: #2095 Signed-off-by: Yonghua Huang <yonghua.huang@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
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@ -34,7 +34,7 @@ static inline size_t get_ucode_data_size(const struct ucode_header *uhdr)
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void acrn_update_ucode(struct acrn_vcpu *vcpu, uint64_t v)
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{
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uint64_t gva, fault_addr;
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uint64_t gva, fault_addr = 0UL;
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struct ucode_header uhdr;
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size_t data_size;
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int32_t err;
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@ -50,31 +50,25 @@ void acrn_update_ucode(struct acrn_vcpu *vcpu, uint64_t v)
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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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spinlock_release(µ_code_lock);
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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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if (data_size > MICRO_CODE_SIZE_MAX) {
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pr_err("The size of microcode is greater than 0x%x",
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MICRO_CODE_SIZE_MAX);
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spinlock_release(µ_code_lock);
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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, micro_code, 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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} else {
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data_size = get_ucode_data_size(&uhdr) + sizeof(struct ucode_header);
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if (data_size > MICRO_CODE_SIZE_MAX) {
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pr_err("The size of microcode is greater than 0x%x",
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MICRO_CODE_SIZE_MAX);
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} else {
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err_code = 0U;
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err = copy_from_gva(vcpu, micro_code, 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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} else {
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msr_write(MSR_IA32_BIOS_UPDT_TRIG,
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(uint64_t)micro_code + sizeof(struct ucode_header));
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(void)get_microcode_version();
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}
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}
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spinlock_release(µ_code_lock);
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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)micro_code + sizeof(struct ucode_header));
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(void)get_microcode_version();
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spinlock_release(µ_code_lock);
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}
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