Thread (45 messages) 45 messages, 2 authors, 2021-08-03

Re: [PATCH v3 07/21] KVM: arm64: Rename KVM_PTE_LEAF_ATTR_S2_IGNORED

From: Fuad Tabba <tabba@google.com>
Date: 2021-08-02 09:38:02
Also in: kvmarm, lkml

Hi Quentin,

On Thu, Jul 29, 2021 at 3:28 PM Quentin Perret [off-list ref] wrote:
The ignored bits for both stage-1 and stage-2 page and block
descriptors are in [55:58], so rename KVM_PTE_LEAF_ATTR_S2_IGNORED to
make it applicable to both. And while at it, since these bits are more
commonly known as 'software' bits, rename accordingly.
As in the Armv8-A Address Translation spec.

Reviewed-by: Fuad Tabba <tabba@google.com>

Thanks,
/fuad


quoted hunk ↗ jump to hunk
Signed-off-by: Quentin Perret <redacted>
---
 arch/arm64/kvm/hyp/pgtable.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index 4dff2ad39ee4..59a394d82de3 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -36,6 +36,8 @@

 #define KVM_PTE_LEAF_ATTR_HI           GENMASK(63, 51)

+#define KVM_PTE_LEAF_ATTR_HI_SW                GENMASK(58, 55)
+
 #define KVM_PTE_LEAF_ATTR_HI_S1_XN     BIT(54)

 #define KVM_PTE_LEAF_ATTR_HI_S2_XN     BIT(54)
@@ -44,8 +46,6 @@
                                         KVM_PTE_LEAF_ATTR_LO_S2_S2AP_W | \
                                         KVM_PTE_LEAF_ATTR_HI_S2_XN)

-#define KVM_PTE_LEAF_ATTR_S2_IGNORED   GENMASK(58, 55)
-
 #define KVM_INVALID_PTE_OWNER_MASK     GENMASK(63, 56)
 #define KVM_MAX_OWNER_ID               1

--
2.32.0.432.gabb21c7263-goog
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help