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[RFC PATCH v4 34/36] i386/tdx: Skip kvm_put_apicbase() for TDs
From: |
Xiaoyao Li |
Subject: |
[RFC PATCH v4 34/36] i386/tdx: Skip kvm_put_apicbase() for TDs |
Date: |
Thu, 12 May 2022 11:18:01 +0800 |
KVM doesn't allow wirting to MSR_IA32_APICBASE for TDs.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
---
target/i386/kvm/kvm.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index 9c5bf075b542..4d520d0e34bd 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -2907,6 +2907,11 @@ void kvm_put_apicbase(X86CPU *cpu, uint64_t value)
{
int ret;
+ /* TODO: Allow accessing guest state for debug TDs. */
+ if (is_tdx_vm()) {
+ return;
+ }
+
ret = kvm_put_one_msr(cpu, MSR_IA32_APICBASE, value);
assert(ret == 1);
}
--
2.27.0
- [RFC PATCH v4 30/36] hw/i386: add eoi_intercept_unsupported member to X86MachineState, (continued)
- [RFC PATCH v4 30/36] hw/i386: add eoi_intercept_unsupported member to X86MachineState, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 26/36] i386/tdx: Finalize TDX VM, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 28/36] i386/tdx: Disable PIC for TDX VMs, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 33/36] i386/tdx: Only configure MSR_IA32_UCODE_REV in kvm_init_msrs() for TDs, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 35/36] i386/tdx: Don't get/put guest state for TDX VMs, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 32/36] i386/tdx: Don't synchronize guest tsc for TDs, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 34/36] i386/tdx: Skip kvm_put_apicbase() for TDs,
Xiaoyao Li <=
- [RFC PATCH v4 31/36] hw/i386: add option to forcibly report edge trigger in acpi tables, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 36/36] docs: Add TDX documentation, Xiaoyao Li, 2022/05/11