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[RFC,1/8] target/i386: Declare constants for XSAVE offsets

Message ID 20210705104632.2902400-2-david.edmondson@oracle.com (mailing list archive)
State New, archived
Headers show
Series Derive XSAVE state component offsets from CPUID leaf 0xd where possible | expand

Commit Message

David Edmondson July 5, 2021, 10:46 a.m. UTC 
Declare and use manifest constants for the XSAVE state component
offsets.

Signed-off-by: David Edmondson <david.edmondson@oracle.com>
---
 target/i386/cpu.h | 30 +++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)
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Patch

diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index f7fa5870b1..aedb8f2e01 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1305,6 +1305,22 @@  typedef struct XSavePKRU {
     uint32_t padding;
 } XSavePKRU;
 
+#define XSAVE_FCW_FSW_OFFSET    0x000
+#define XSAVE_FTW_FOP_OFFSET    0x004
+#define XSAVE_CWD_RIP_OFFSET    0x008
+#define XSAVE_CWD_RDP_OFFSET    0x010
+#define XSAVE_MXCSR_OFFSET      0x018
+#define XSAVE_ST_SPACE_OFFSET   0x020
+#define XSAVE_XMM_SPACE_OFFSET  0x0a0
+#define XSAVE_XSTATE_BV_OFFSET  0x200
+#define XSAVE_AVX_OFFSET        0x240
+#define XSAVE_BNDREG_OFFSET     0x3c0
+#define XSAVE_BNDCSR_OFFSET     0x400
+#define XSAVE_OPMASK_OFFSET     0x440
+#define XSAVE_ZMM_HI256_OFFSET  0x480
+#define XSAVE_HI16_ZMM_OFFSET   0x680
+#define XSAVE_PKRU_OFFSET       0xa80
+
 typedef struct X86XSaveArea {
     X86LegacyXSaveArea legacy;
     X86XSaveHeader header;
@@ -1325,19 +1341,19 @@  typedef struct X86XSaveArea {
     XSavePKRU pkru_state;
 } X86XSaveArea;
 
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, avx_state) != 0x240);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, avx_state) != XSAVE_AVX_OFFSET);
 QEMU_BUILD_BUG_ON(sizeof(XSaveAVX) != 0x100);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, bndreg_state) != 0x3c0);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, bndreg_state) != XSAVE_BNDREG_OFFSET);
 QEMU_BUILD_BUG_ON(sizeof(XSaveBNDREG) != 0x40);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, bndcsr_state) != 0x400);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, bndcsr_state) != XSAVE_BNDCSR_OFFSET);
 QEMU_BUILD_BUG_ON(sizeof(XSaveBNDCSR) != 0x40);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, opmask_state) != 0x440);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, opmask_state) != XSAVE_OPMASK_OFFSET);
 QEMU_BUILD_BUG_ON(sizeof(XSaveOpmask) != 0x40);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, zmm_hi256_state) != 0x480);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, zmm_hi256_state) != XSAVE_ZMM_HI256_OFFSET);
 QEMU_BUILD_BUG_ON(sizeof(XSaveZMM_Hi256) != 0x200);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, hi16_zmm_state) != 0x680);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, hi16_zmm_state) != XSAVE_HI16_ZMM_OFFSET);
 QEMU_BUILD_BUG_ON(sizeof(XSaveHi16_ZMM) != 0x400);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, pkru_state) != 0xA80);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, pkru_state) != XSAVE_PKRU_OFFSET);
 QEMU_BUILD_BUG_ON(sizeof(XSavePKRU) != 0x8);
 
 typedef enum TPRAccess {