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[PATCH 2/2] target/i386: Expose VMX entry/exit load pkrs control bits


From: Chenyi Qiang
Subject: [PATCH 2/2] target/i386: Expose VMX entry/exit load pkrs control bits
Date: Fri, 5 Feb 2021 16:33:25 +0800

Expose the VMX exit/entry load pkrs control bits in
VMX_TRUE_EXIT_CTLS/VMX_TRUE_ENTRY_CTLS MSRs to guest, which supports the
PKS in nested VM.

Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com>
---
 target/i386/cpu.c | 4 ++--
 target/i386/cpu.h | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 21136c61a8..0de67bbbb2 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1215,7 +1215,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = 
{
             "vmx-exit-save-efer", "vmx-exit-load-efer",
                 "vmx-exit-save-preemption-timer", "vmx-exit-clear-bndcfgs",
             NULL, "vmx-exit-clear-rtit-ctl", NULL, NULL,
-            NULL, NULL, NULL, NULL,
+            NULL, "vmx-exit-load-pkrs", NULL, NULL,
         },
         .msr = {
             .index = MSR_IA32_VMX_TRUE_EXIT_CTLS,
@@ -1230,7 +1230,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = 
{
             NULL, "vmx-entry-ia32e-mode", NULL, NULL,
             NULL, "vmx-entry-load-perf-global-ctrl", "vmx-entry-load-pat", 
"vmx-entry-load-efer",
             "vmx-entry-load-bndcfgs", NULL, "vmx-entry-load-rtit-ctl", NULL,
-            NULL, NULL, NULL, NULL,
+            NULL, NULL, "vmx-entry-load-pkrs", NULL,
             NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,
         },
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index d7f3ef99d1..fbf65db4db 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -969,6 +969,7 @@ typedef uint64_t FeatureWordArray[FEATURE_WORDS];
 #define VMX_VM_EXIT_CLEAR_BNDCFGS                   0x00800000
 #define VMX_VM_EXIT_PT_CONCEAL_PIP                  0x01000000
 #define VMX_VM_EXIT_CLEAR_IA32_RTIT_CTL             0x02000000
+#define VMX_VM_EXIT_LOAD_IA32_PKRS                  0x20000000
 
 #define VMX_VM_ENTRY_LOAD_DEBUG_CONTROLS            0x00000004
 #define VMX_VM_ENTRY_IA32E_MODE                     0x00000200
@@ -980,6 +981,7 @@ typedef uint64_t FeatureWordArray[FEATURE_WORDS];
 #define VMX_VM_ENTRY_LOAD_BNDCFGS                   0x00010000
 #define VMX_VM_ENTRY_PT_CONCEAL_PIP                 0x00020000
 #define VMX_VM_ENTRY_LOAD_IA32_RTIT_CTL             0x00040000
+#define VMX_VM_ENTRY_LOAD_IA32_PKRS                 0x00400000
 
 /* Supported Hyper-V Enlightenments */
 #define HYPERV_FEAT_RELAXED             0
-- 
2.17.1




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