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LoongArch: KVM: Set default MAILBOX access size with 8

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With IOCSR instruction emulation in function kvm_emu_iocsr(), possible
size combination is 1/2/4/8 and no other combinations. Here remove the
old default case and replace the default case with 8 in read_mailbox()
and write_mailbox().

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Bibo Mao 2026-08-10 12:21:51 +08:00 committed by Huacai Chen
parent 32d05564a6
commit a068c37c71
1 changed files with 2 additions and 7 deletions
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9
arch/loongarch/kvm/intc/ipi.c
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@ -67,11 +67,8 @@ static uint64_t read_mailbox(struct kvm_vcpu *vcpu, int offset, int len)
return data & 0xffff;
case 4:
return data & 0xffffffff;
case 8:
return data;
default:
kvm_err("%s: unknown data len: %d\n", __func__, len);
return 0;
return data;
}
}
@ -92,11 +89,9 @@ static void write_mailbox(struct kvm_vcpu *vcpu, int offset, uint64_t data, int
case 4:
*(unsigned int *)pbuf = (unsigned int)data;
break;
case 8:
default:
*(unsigned long *)pbuf = (unsigned long)data;
break;
default:
kvm_err("%s: unknown data len: %d\n", __func__, len);
}
spin_unlock(&vcpu->arch.ipi_state.lock);
}