From: Vasant Karasulli <vkarasulli@xxxxxxx>
Processing CPUID #VC for AMD SEV-ES requires copying xcr0 into GHCB.
Move the xsave read/write helpers used by xsave testcase to lib/x86
to share as common code.
Signed-off-by: Vasant Karasulli <vkarasulli@xxxxxxx>
---
lib/x86/processor.h | 8 ++++++++
x86/xsave.c | 7 -------
2 files changed, 8 insertions(+), 7 deletions(-)
diff --git a/lib/x86/processor.h b/lib/x86/processor.h
index b324cbf0..e85f9e0e 100644
--- a/lib/x86/processor.h
+++ b/lib/x86/processor.h
@@ -477,6 +477,14 @@ static inline uint64_t rdpmc(uint32_t index)
return val;
}
+/* XCR0 related definitions */
+#define XCR_XFEATURE_ENABLED_MASK 0x00000000
+#define XCR_XFEATURE_ILLEGAL_MASK 0x00000010
+
+#define XSTATE_FP 0x1
+#define XSTATE_SSE 0x2
+#define XSTATE_YMM 0x4
+
static inline int xgetbv_safe(u32 index, u64 *result)
{
return rdreg64_safe(".byte 0x0f,0x01,0xd0", index, result);
diff --git a/x86/xsave.c b/x86/xsave.c
index 5d80f245..feb8db28 100644
--- a/x86/xsave.c
+++ b/x86/xsave.c
@@ -17,13 +17,6 @@ static uint64_t get_supported_xcr0(void)
return r.a + ((u64)r.d << 32);
}
-#define XCR_XFEATURE_ENABLED_MASK 0x00000000
-#define XCR_XFEATURE_ILLEGAL_MASK 0x00000010
-
-#define XSTATE_FP 0x1
-#define XSTATE_SSE 0x2
-#define XSTATE_YMM 0x4
-
static void test_xsave(void)
{
unsigned long cr4;
--
2.34.1
