[RFC,01/23] target/i386: Expose x86_cpu_get_supported_feature_word() for TDX

Commit Message

Isaku Yamahata Feb. 16, 2021, 2:12 a.m. UTC

From: Sean Christopherson <[e-mail]>

Expose x86_cpu_get_supported_feature_word() outside of cpu.c so that it
can be used by TDX to setup the VM-wide CPUID configuration.

Signed-off-by: Sean Christopherson <[e-mail]>
---
 target/i386/cpu.c | 4 ++--
 target/i386/cpu.h | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

Comments

Philippe Mathieu-Daudé Feb. 16, 2021, 7:53 a.m. UTC | #1

On 2/16/21 3:12 AM, Isaku Yamahata wrote:
> From: Sean Christopherson <[e-mail]>
> 
> Expose x86_cpu_get_supported_feature_word() outside of cpu.c so that it
> can be used by TDX to setup the VM-wide CPUID configuration.
> 
> Signed-off-by: Sean Christopherson <[e-mail]>
> ---
>  target/i386/cpu.c | 4 ++--
>  target/i386/cpu.h | 3 +++
>  2 files changed, 5 insertions(+), 2 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <[e-mail]>

Patch

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 9c3d2d60b7..578e1fe25f 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -5043,8 +5043,8 @@  CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp)
     return cpu_list;
 }
 
-static uint64_t x86_cpu_get_supported_feature_word(FeatureWord w,
-                                                   bool migratable_only)
+uint64_t x86_cpu_get_supported_feature_word(FeatureWord w,
+                                            bool migratable_only)
 {
     FeatureWordInfo *wi = &feature_word_info[w];
     uint64_t r = 0;
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 8d599bb5b8..7274e8d1b4 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1815,6 +1815,9 @@  void cpu_set_ignne(void);
 /* mpx_helper.c */
 void cpu_sync_bndcs_hflags(CPUX86State *env);
 
+uint64_t x86_cpu_get_supported_feature_word(FeatureWord w,
+                                            bool migratable_only);
+
 /* this function must always be used to load data in the segment
    cache: it synchronizes the hflags with the segment cache values */
 static inline void cpu_x86_load_seg_cache(CPUX86State *env,