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| author | Mark Brown <broonie@kernel.org> | 2024-10-23 17:53:31 +0300 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2024-10-31 05:44:21 +0300 |
| commit | 997eeecafebaef668b76264800c185544a432839 (patch) | |
| tree | b00e25e845c7858b6299d983f4a7fb88e3b5b087 | |
| parent | ee3a9a0643c58f61d2227ba819e13dbb552aff11 (diff) | |
| download | linux-997eeecafebaef668b76264800c185544a432839.tar.xz | |
KVM: arm64: Define helper for EL2 registers with custom visibility
In preparation for adding more visibility filtering for EL2 registers add
a helper macro like EL2_REG() which allows specification of a custom
visibility operation.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240822-kvm-arm64-hide-pie-regs-v2-1-376624fa829c@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20241023145345.1613824-24-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
| -rw-r--r-- | arch/arm64/kvm/sys_regs.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 9938c768c5ac..a2648a66b88d 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -2171,6 +2171,15 @@ static bool bad_redir_trap(struct kvm_vcpu *vcpu, .val = v, \ } +#define EL2_REG_FILTERED(name, acc, rst, v, filter) { \ + SYS_DESC(SYS_##name), \ + .access = acc, \ + .reset = rst, \ + .reg = name, \ + .visibility = filter, \ + .val = v, \ +} + #define EL2_REG_VNCR(name, rst, v) EL2_REG(name, bad_vncr_trap, rst, v) #define EL2_REG_REDIR(name, rst, v) EL2_REG(name, bad_redir_trap, rst, v) @@ -2887,8 +2896,8 @@ static const struct sys_reg_desc sys_reg_descs[] = { EL2_REG_VNCR(HFGITR_EL2, reset_val, 0), EL2_REG_VNCR(HACR_EL2, reset_val, 0), - { SYS_DESC(SYS_ZCR_EL2), .access = access_zcr_el2, .reset = reset_val, - .visibility = sve_el2_visibility, .reg = ZCR_EL2 }, + EL2_REG_FILTERED(ZCR_EL2, access_zcr_el2, reset_val, 0, + sve_el2_visibility), EL2_REG_VNCR(HCRX_EL2, reset_val, 0), |