virt inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IBN3WI ------------------------------------------------------------------------ 920G: ID_AA64MMFR3_EL1.Spec_FPACC=0x1 920B/C: ID_AA64MMFR3_EL1.Spec_FPACC=0x0 The live migration between 920B/C/G need to change the value of Spec_FPACC, so it is exposed to the guest. Closing the FPACC on the guest does not directly affect the FPACC status on the host. Sign-off-by: Jinqian Yang <yangjinqian1@huawei.com> --- arch/arm64/kvm/sys_regs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index c200590784d2..17f43d05c93d 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -2396,7 +2396,8 @@ static const struct sys_reg_desc sys_reg_descs[] = { ID_AA64MMFR2_EL1_CCIDX)), ID_WRITABLE(ID_AA64MMFR3_EL1, (ID_AA64MMFR3_EL1_TCRX | ID_AA64MMFR3_EL1_S1PIE | - ID_AA64MMFR3_EL1_S1POE)), + ID_AA64MMFR3_EL1_S1POE | + ID_AA64MMFR3_EL1_Spec_FPACC)), ID_UNALLOCATED(7,4), ID_UNALLOCATED(7,5), ID_UNALLOCATED(7,6), -- 2.33.0