[CRIU] [PATCH 08/18] compel: fpu -- Add compel_fpu_feature_size

[Cyrill Gorcunov]

Signed-off-by: Cyrill Gorcunov <gorcunov at gmail.com>
---
 compel/arch/aarch64/src/lib/cpu.c |  9 +++++++++
 compel/arch/arm/src/lib/cpu.c     |  9 +++++++++
 compel/arch/ppc64/src/lib/cpu.c   |  9 +++++++++
 compel/arch/s390/src/lib/cpu.c    |  9 +++++++++
 compel/arch/x86/src/lib/cpu.c     | 12 ++++++++++++
 compel/include/uapi/cpu.h         |  2 ++
 6 files changed, 50 insertions(+)

diff --git a/compel/arch/aarch64/src/lib/cpu.c b/compel/arch/aarch64/src/lib/cpu.c
index 38d9cbf4ef6d..e82988879382 100644
--- a/compel/arch/aarch64/src/lib/cpu.c
+++ b/compel/arch/aarch64/src/lib/cpu.c
@@ -37,6 +37,15 @@ bool compel_fpu_has_feature(unsigned int feature)
 	return compel_test_fpu_cap(&rt_info, feature);
 }
 
+uint32_t compel_fpu_feature_size(unsigned int feature)
+{
+	if (!rt_info_done) {
+		compel_cpuid(&rt_info);
+		rt_info_done = true;
+	}
+	return 0;
+}
+
 void compel_cpu_clear_feature(unsigned int feature)
 {
 	if (!rt_info_done) {
diff --git a/compel/arch/arm/src/lib/cpu.c b/compel/arch/arm/src/lib/cpu.c
index 38d9cbf4ef6d..e82988879382 100644
--- a/compel/arch/arm/src/lib/cpu.c
+++ b/compel/arch/arm/src/lib/cpu.c
@@ -37,6 +37,15 @@ bool compel_fpu_has_feature(unsigned int feature)
 	return compel_test_fpu_cap(&rt_info, feature);
 }
 
+uint32_t compel_fpu_feature_size(unsigned int feature)
+{
+	if (!rt_info_done) {
+		compel_cpuid(&rt_info);
+		rt_info_done = true;
+	}
+	return 0;
+}
+
 void compel_cpu_clear_feature(unsigned int feature)
 {
 	if (!rt_info_done) {
diff --git a/compel/arch/ppc64/src/lib/cpu.c b/compel/arch/ppc64/src/lib/cpu.c
index 27a21a53ad92..a9be1fd6b258 100644
--- a/compel/arch/ppc64/src/lib/cpu.c
+++ b/compel/arch/ppc64/src/lib/cpu.c
@@ -51,6 +51,15 @@ bool compel_fpu_has_feature(unsigned int feature)
 	return compel_test_fpu_cap(&rt_info, feature);
 }
 
+uint32_t compel_fpu_feature_size(unsigned int feature)
+{
+	if (!rt_info_done) {
+		compel_cpuid(&rt_info);
+		rt_info_done = true;
+	}
+	return 0;
+}
+
 void compel_cpu_clear_feature(unsigned int feature)
 {
 	if (!rt_info_done) {
diff --git a/compel/arch/s390/src/lib/cpu.c b/compel/arch/s390/src/lib/cpu.c
index 97ab809b8ae4..bb32affe8d57 100644
--- a/compel/arch/s390/src/lib/cpu.c
+++ b/compel/arch/s390/src/lib/cpu.c
@@ -51,6 +51,15 @@ bool compel_fpu_has_feature(unsigned int feature)
 	return compel_test_fpu_cap(&rt_info, feature);
 }
 
+uint32_t compel_fpu_feature_size(unsigned int feature)
+{
+	if (!rt_info_done) {
+		compel_cpuid(&rt_info);
+		rt_info_done = true;
+	}
+	return 0;
+}
+
 void compel_cpu_clear_feature(unsigned int feature)
 {
 	if (!rt_info_done) {
diff --git a/compel/arch/x86/src/lib/cpu.c b/compel/arch/x86/src/lib/cpu.c
index 85a936299342..dd5524d810ad 100644
--- a/compel/arch/x86/src/lib/cpu.c
+++ b/compel/arch/x86/src/lib/cpu.c
@@ -454,6 +454,18 @@ bool compel_fpu_has_feature(unsigned int feature)
 	return compel_test_fpu_cap(&rt_info, feature);
 }
 
+uint32_t compel_fpu_feature_size(unsigned int feature)
+{
+	if (!rt_info_done) {
+		compel_cpuid(&rt_info);
+		rt_info_done = true;
+	}
+	if (feature >= FIRST_EXTENDED_XFEATURE &&
+	    feature < XFEATURE_MAX)
+		return rt_info.xstate_sizes[feature];
+	return 0;
+}
+
 void compel_cpu_clear_feature(unsigned int feature)
 {
 	if (!rt_info_done) {
diff --git a/compel/include/uapi/cpu.h b/compel/include/uapi/cpu.h
index d858a0b467e6..c82f8abb6d23 100644
--- a/compel/include/uapi/cpu.h
+++ b/compel/include/uapi/cpu.h
@@ -2,12 +2,14 @@
 #define UAPI_COMPEL_CPU_H__
 
 #include <stdbool.h>
+#include <stdint.h>
 
 #include <compel/asm/cpu.h>
 
 extern int compel_cpuid(compel_cpuinfo_t *info);
 extern bool compel_cpu_has_feature(unsigned int feature);
 extern bool compel_fpu_has_feature(unsigned int feature);
+extern uint32_t compel_fpu_feature_size(unsigned int feature);
 extern void compel_cpu_clear_feature(unsigned int feature);
 extern void compel_cpu_copy_cpuinfo(compel_cpuinfo_t *c);
 
-- 
2.14.4