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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
KVM: arm64: Teach ptdump about FEAT_XNX permissions
Although KVM doesn't make direct use of the feature, guest hypervisors
can use FEAT_XNX which influences the permissions of the shadow stage-2.
Update ptdump to separately print the privileged and unprivileged
execute permissions.
Reviewed-by: Marc Zyngier <maz@kernel.org>
Tested-by: Marc Zyngier <maz@kernel.org>
Link: https://msgid.link/20251124190158.177318-5-oupton@kernel.org
Signed-off-by: Oliver Upton <oupton@kernel.org>
+27
-8
+27
-8
arch/arm64/kvm/ptdump.c
+27
-8
arch/arm64/kvm/ptdump.c
···
31
31
.val = PTE_VALID,
32
32
.set = " ",
33
33
.clear = "F",
34
-
}, {
34
+
},
35
+
{
35
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.mask = KVM_PTE_LEAF_ATTR_LO_S2_S2AP_R,
36
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.val = KVM_PTE_LEAF_ATTR_LO_S2_S2AP_R,
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.set = "R",
38
39
.clear = " ",
39
-
}, {
40
+
},
41
+
{
40
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.mask = KVM_PTE_LEAF_ATTR_LO_S2_S2AP_W,
41
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.val = KVM_PTE_LEAF_ATTR_LO_S2_S2AP_W,
42
44
.set = "W",
43
45
.clear = " ",
44
-
}, {
46
+
},
47
+
{
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.mask = KVM_PTE_LEAF_ATTR_HI_S2_XN,
46
-
.val = KVM_PTE_LEAF_ATTR_HI_S2_XN,
47
-
.set = "NX",
48
-
.clear = "x ",
49
-
}, {
49
+
.val = 0b00UL << __bf_shf(KVM_PTE_LEAF_ATTR_HI_S2_XN),
50
+
.set = "px ux ",
51
+
},
52
+
{
53
+
.mask = KVM_PTE_LEAF_ATTR_HI_S2_XN,
54
+
.val = 0b01UL << __bf_shf(KVM_PTE_LEAF_ATTR_HI_S2_XN),
55
+
.set = "PXNux ",
56
+
},
57
+
{
58
+
.mask = KVM_PTE_LEAF_ATTR_HI_S2_XN,
59
+
.val = 0b10UL << __bf_shf(KVM_PTE_LEAF_ATTR_HI_S2_XN),
60
+
.set = "PXNUXN",
61
+
},
62
+
{
63
+
.mask = KVM_PTE_LEAF_ATTR_HI_S2_XN,
64
+
.val = 0b11UL << __bf_shf(KVM_PTE_LEAF_ATTR_HI_S2_XN),
65
+
.set = "px UXN",
66
+
},
67
+
{
50
68
.mask = KVM_PTE_LEAF_ATTR_LO_S2_AF,
51
69
.val = KVM_PTE_LEAF_ATTR_LO_S2_AF,
52
70
.set = "AF",
53
71
.clear = " ",
54
-
}, {
72
+
},
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+
{
55
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.mask = PMD_TYPE_MASK,
56
75
.val = PMD_TYPE_SECT,
57
76
.set = "BLK",