diff options
| author | Marc Zyngier <maz@kernel.org> | 2023-06-09 19:21:55 +0300 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2023-06-13 02:17:23 +0300 |
| commit | 6537565fd9b7f169cda025482f6de2646cf7b60a (patch) | |
| tree | c29da875439746bea3d9fa584d1928b18f24d78e | |
| parent | cff3b5cf96edbb9e7448bca6261871272922a0df (diff) | |
| download | linux-6537565fd9b7f169cda025482f6de2646cf7b60a.tar.xz | |
KVM: arm64: Adjust EL2 stage-1 leaf AP bits when ARM64_KVM_HVHE is set
El2 stage-1 page-table format is subtly (and annoyingly) different
when HCR_EL2.E2H is set.
Take the ARM64_KVM_HVHE configuration into account when setting
the AP bits.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230609162200.2024064-13-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
| -rw-r--r-- | arch/arm64/kvm/hyp/pgtable.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c index 5282cb9ca4cf..21d0d0b1cf15 100644 --- a/arch/arm64/kvm/hyp/pgtable.c +++ b/arch/arm64/kvm/hyp/pgtable.c @@ -21,8 +21,10 @@ #define KVM_PTE_LEAF_ATTR_LO_S1_ATTRIDX GENMASK(4, 2) #define KVM_PTE_LEAF_ATTR_LO_S1_AP GENMASK(7, 6) -#define KVM_PTE_LEAF_ATTR_LO_S1_AP_RO 3 -#define KVM_PTE_LEAF_ATTR_LO_S1_AP_RW 1 +#define KVM_PTE_LEAF_ATTR_LO_S1_AP_RO \ + ({ cpus_have_final_cap(ARM64_KVM_HVHE) ? 2 : 3; }) +#define KVM_PTE_LEAF_ATTR_LO_S1_AP_RW \ + ({ cpus_have_final_cap(ARM64_KVM_HVHE) ? 0 : 1; }) #define KVM_PTE_LEAF_ATTR_LO_S1_SH GENMASK(9, 8) #define KVM_PTE_LEAF_ATTR_LO_S1_SH_IS 3 #define KVM_PTE_LEAF_ATTR_LO_S1_AF BIT(10) |