KVM: arm64: Remove all traces of HCR_EL2.MIOCNCE

MIOCNCE had the potential to eat your data, and also was never
implemented by anyone. It's been retrospectively removed from
the architecture, and we're happy to follow that lead.

Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260202184329.2724080-19-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>

diff --git a/arch/arm64/kvm/config.c b/arch/arm64/kvm/config.c
index c1b76a76a5e4e124efbb8bc2f0246f3a0127c59c..8640f9c9b2e0e8c70e681d042837013be091d0f5 100644 (file)
--- a/arch/arm64/kvm/config.c
+++ b/arch/arm64/kvm/config.c
@@ -938,7 +938,6 @@ static const struct reg_bits_to_feat_map hcr_feat_map[] = {
                   HCR_EL2_FMO          |
                   HCR_EL2_ID           |
                   HCR_EL2_IMO          |
-                  HCR_EL2_MIOCNCE      |
                   HCR_EL2_PTW          |
                   HCR_EL2_SWIO         |
                   HCR_EL2_TACR         |

diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index 650d7d477087e824dd023f3ef9d5dc0e3a3cb6b3..724e6ad966c20f5e3d9898cd6a143d2115746064 100644 (file)
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -3834,8 +3834,7 @@ Field     43      NV1
 Field  42      NV
 Field  41      API
 Field  40      APK
-Res0   39
-Field  38      MIOCNCE
+Res0   39:38
 Field  37      TEA
 Field  36      TERR
 Field  35      TLOR