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[RFC PATCH v3 12/36] i386/tdx: Add property sept-ve-disable for tdx-gues
From: |
Xiaoyao Li |
Subject: |
[RFC PATCH v3 12/36] i386/tdx: Add property sept-ve-disable for tdx-guest object |
Date: |
Thu, 17 Mar 2022 21:58:49 +0800 |
Add sept-ve-disable property for tdx-guest object. It's used to
configure bit 28 of TD attributes.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
---
qapi/qom.json | 5 ++++-
target/i386/kvm/tdx.c | 24 ++++++++++++++++++++++++
2 files changed, 28 insertions(+), 1 deletion(-)
diff --git a/qapi/qom.json b/qapi/qom.json
index 1415ab22e531..fc380095a42c 100644
--- a/qapi/qom.json
+++ b/qapi/qom.json
@@ -792,10 +792,13 @@
#
# @attributes: TDX guest's attributes (default: 0)
#
+# @sept-ve-disable: attributes.sept-ve-disable[bit 28] (default: 0)
+#
# Since: 7.0
##
{ 'struct': 'TdxGuestProperties',
- 'data': { '*attributes': 'uint64' } }
+ 'data': { '*attributes': 'uint64',
+ '*sept-ve-disable': 'bool' } }
##
# @ObjectType:
diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c
index a5cc187edbde..409526765304 100644
--- a/target/i386/kvm/tdx.c
+++ b/target/i386/kvm/tdx.c
@@ -21,6 +21,8 @@
#include "kvm_i386.h"
#include "tdx.h"
+#define TDX_TD_ATTRIBUTES_SEPT_VE_DISABLE BIT_ULL(28)
+
static TdxGuest *tdx_guest;
/* It's valid after kvm_confidential_guest_init()->kvm_tdx_init() */
@@ -196,6 +198,24 @@ out:
return r;
}
+static bool tdx_guest_get_sept_ve_disable(Object *obj, Error **errp)
+{
+ TdxGuest *tdx = TDX_GUEST(obj);
+
+ return !!(tdx->attributes & TDX_TD_ATTRIBUTES_SEPT_VE_DISABLE);
+}
+
+static void tdx_guest_set_sept_ve_disable(Object *obj, bool value, Error
**errp)
+{
+ TdxGuest *tdx = TDX_GUEST(obj);
+
+ if (value) {
+ tdx->attributes |= TDX_TD_ATTRIBUTES_SEPT_VE_DISABLE;
+ } else {
+ tdx->attributes &= ~TDX_TD_ATTRIBUTES_SEPT_VE_DISABLE;
+ }
+}
+
/* tdx guest */
OBJECT_DEFINE_TYPE_WITH_INTERFACES(TdxGuest,
tdx_guest,
@@ -211,6 +231,10 @@ static void tdx_guest_init(Object *obj)
qemu_mutex_init(&tdx->lock);
tdx->attributes = 0;
+
+ object_property_add_bool(obj, "sept-ve-disable",
+ tdx_guest_get_sept_ve_disable,
+ tdx_guest_set_sept_ve_disable);
}
static void tdx_guest_finalize(Object *obj)
--
2.27.0
- [RFC PATCH v3 04/36] target/i386: Introduce kvm_confidential_guest_init(), (continued)
- [RFC PATCH v3 04/36] target/i386: Introduce kvm_confidential_guest_init(), Xiaoyao Li, 2022/03/17
- [RFC PATCH v3 02/36] i386: Introduce tdx-guest object, Xiaoyao Li, 2022/03/17
- [RFC PATCH v3 08/36] i386/tdx: Adjust get_supported_cpuid() for TDX VM, Xiaoyao Li, 2022/03/17
- [RFC PATCH v3 09/36] KVM: Introduce kvm_arch_pre_create_vcpu(), Xiaoyao Li, 2022/03/17
- [RFC PATCH v3 10/36] i386/kvm: Move architectural CPUID leaf generation to separate helper, Xiaoyao Li, 2022/03/17
- [RFC PATCH v3 11/36] i386/tdx: Initialize TDX before creating TD vcpus, Xiaoyao Li, 2022/03/17
- [RFC PATCH v3 12/36] i386/tdx: Add property sept-ve-disable for tdx-guest object,
Xiaoyao Li <=
- Re: [RFC PATCH v3 12/36] i386/tdx: Add property sept-ve-disable for tdx-guest object, Gerd Hoffmann, 2022/03/22
- Re: [RFC PATCH v3 12/36] i386/tdx: Add property sept-ve-disable for tdx-guest object, Xiaoyao Li, 2022/03/24
- Re: [RFC PATCH v3 12/36] i386/tdx: Add property sept-ve-disable for tdx-guest object, Gerd Hoffmann, 2022/03/24
- Re: [RFC PATCH v3 12/36] i386/tdx: Add property sept-ve-disable for tdx-guest object, Xiaoyao Li, 2022/03/24
- Re: [RFC PATCH v3 12/36] i386/tdx: Add property sept-ve-disable for tdx-guest object, Gerd Hoffmann, 2022/03/24
- Re: [RFC PATCH v3 12/36] i386/tdx: Add property sept-ve-disable for tdx-guest object, Xiaoyao Li, 2022/03/24
- Re: [RFC PATCH v3 12/36] i386/tdx: Add property sept-ve-disable for tdx-guest object, Isaku Yamahata, 2022/03/24
[RFC PATCH v3 13/36] i386/tdx: Wire CPU features up with attributes of TD guest, Xiaoyao Li, 2022/03/17
[RFC PATCH v3 14/36] i386/tdx: Validate TD attributes, Xiaoyao Li, 2022/03/17
[RFC PATCH v3 16/36] i386/tdx: Set kvm_readonly_mem_enabled to false for TDX VM, Xiaoyao Li, 2022/03/17