tree 2255655389373f4533aabaf544b09f9b3830dcfe
parent fdf029762f50101a3d7927d8db1be015e00f441c
author Zenghui Yu <zenghui.yu@linux.dev> 1716476779 +0100
committer Peter Maydell <peter.maydell@linaro.org> 1716902448 +0100

hvf: arm: Fix encodings for ID_AA64PFR1_EL1 and debug System registers

We wrongly encoded ID_AA64PFR1_EL1 using {3,0,0,4,2} in hvf_sreg_match[] so
we fail to get the expected ARMCPRegInfo from cp_regs hash table with the
wrong key.

Fix it with the correct encoding {3,0,0,4,1}. With that fixed, the Linux
guest can properly detect FEAT_SSBS2 on my M1 HW.

All DBG{B,W}{V,C}R_EL1 registers are also wrongly encoded with op0 == 14.
It happens to work because HVF_SYSREG(CRn, CRm, 14, op1, op2) equals to
HVF_SYSREG(CRn, CRm, 2, op1, op2), by definition. But we shouldn't rely on
it.

Cc: qemu-stable@nongnu.org
Fixes: a1477da3ddeb ("hvf: Add Apple Silicon support")
Signed-off-by: Zenghui Yu <zenghui.yu@linux.dev>
Reviewed-by: Alexander Graf <agraf@csgraf.de>
Message-id: 20240503153453.54389-1-zenghui.yu@linux.dev
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>