On parts that enumerate IA32_VMX_BASIC MSR bit as 1, any exception vector
can be delivered with or without an error code if the other consistency
checks are satisfied.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/cpu.c | 1 +
 target/i386/cpu.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 6e52c7be1e1..8f334dbbcc2 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1347,6 +1347,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
         .feat_names = {
             [54] = "vmx-ins-outs",
             [55] = "vmx-true-ctls",
+            [56] = "vmx-any-errcode",
         },
         .msr = {
             .index = MSR_IA32_VMX_BASIC,
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index eab610e5cd5..2e09c588f0b 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1039,6 +1039,7 @@ uint64_t x86_cpu_get_supported_feature_word(FeatureWord w,
 #define MSR_VMX_BASIC_DUAL_MONITOR                   (1ULL << 49)
 #define MSR_VMX_BASIC_INS_OUTS                       (1ULL << 54)
 #define MSR_VMX_BASIC_TRUE_CTLS                      (1ULL << 55)
+#define MSR_VMX_BASIC_ANY_ERRCODE                    (1ULL << 56)
 
 #define MSR_VMX_MISC_PREEMPTION_TIMER_SHIFT_MASK     0x1Full
 #define MSR_VMX_MISC_STORE_LMA                       (1ULL << 5)
-- 
2.41.0

On 9/20/2023 11:41 PM, Paolo Bonzini wrote:
> On parts that enumerate IA32_VMX_BASIC MSR bit as 1, any exception vector
> can be delivered with or without an error code if the other consistency
> checks are satisfied.
>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>   target/i386/cpu.c | 1 +
>   target/i386/cpu.h | 1 +
>   2 files changed, 2 insertions(+)
>
> diff --git a/target/i386/cpu.c b/target/i386/cpu.c
> index 6e52c7be1e1..8f334dbbcc2 100644
> --- a/target/i386/cpu.c
> +++ b/target/i386/cpu.c
> @@ -1347,6 +1347,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
>           .feat_names = {
>               [54] = "vmx-ins-outs",
>               [55] = "vmx-true-ctls",
> +            [56] = "vmx-any-errcode",
>           },
>           .msr = {
>               .index = MSR_IA32_VMX_BASIC,
> diff --git a/target/i386/cpu.h b/target/i386/cpu.h
> index eab610e5cd5..2e09c588f0b 100644
> --- a/target/i386/cpu.h
> +++ b/target/i386/cpu.h
> @@ -1039,6 +1039,7 @@ uint64_t x86_cpu_get_supported_feature_word(FeatureWord w,
>   #define MSR_VMX_BASIC_DUAL_MONITOR                   (1ULL << 49)
>   #define MSR_VMX_BASIC_INS_OUTS                       (1ULL << 54)
>   #define MSR_VMX_BASIC_TRUE_CTLS                      (1ULL << 55)
> +#define MSR_VMX_BASIC_ANY_ERRCODE                    (1ULL << 56)
>   
>   #define MSR_VMX_MISC_PREEMPTION_TIMER_SHIFT_MASK     0x1Full
>   #define MSR_VMX_MISC_STORE_LMA                       (1ULL << 5)

Thanks Paolo!
I forgot to post refreshed CET QEMU series which includes this bit enabling.

Reviewed-by:  Yang Weijiang <weijiang.yang@intel.com>