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| author | Marc Zyngier <[email protected]> | 2025-02-20 13:49:04 +0000 |
|---|---|---|
| committer | Oliver Upton <[email protected]> | 2025-02-24 19:31:35 +0000 |
| commit | 642c23ea8b45b673d8a256e01c04ef5b3c819f11 (patch) | |
| tree | e4a792342b52fa1a114bfbb393d079a50ac98eb9 | |
| parent | KVM: arm64: Allow userspace to limit NV support to nVHE (diff) | |
| download | kernel-642c23ea8b45b673d8a256e01c04ef5b3c819f11.tar.gz kernel-642c23ea8b45b673d8a256e01c04ef5b3c819f11.zip | |
KVM: arm64: Make ID_AA64MMFR4_EL1.NV_frac writable
We want to make sure that it is possible for userspace to configure
whether recursive NV is possible. Make NV_frac writable for that
purpose.
Signed-off-by: Marc Zyngier <[email protected]>
Reviewed-by: Joey Gouly <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Oliver Upton <[email protected]>
| -rw-r--r-- | arch/arm64/kvm/sys_regs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index dacccc35a3bd..1a18a0324d9f 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -2683,7 +2683,7 @@ static const struct sys_reg_desc sys_reg_descs[] = { ID_WRITABLE(ID_AA64MMFR3_EL1, (ID_AA64MMFR3_EL1_TCRX | ID_AA64MMFR3_EL1_S1PIE | ID_AA64MMFR3_EL1_S1POE)), - ID_SANITISED(ID_AA64MMFR4_EL1), + ID_WRITABLE(ID_AA64MMFR4_EL1, ID_AA64MMFR4_EL1_NV_frac), ID_UNALLOCATED(7,5), ID_UNALLOCATED(7,6), ID_UNALLOCATED(7,7), |