From: David Edmondson <david.edmondson@oracle.com>
To: qemu-devel@nongnu.org
Cc: Richard Henderson <richard.henderson@linaro.org>,
Michael Roth <michael.roth@amd.com>,
kvm@vger.kernel.org, Roman Bolshakov <r.bolshakov@yadro.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
babu.moger@amd.com, Cameron Esfahani <dirty@apple.com>,
Eduardo Habkost <ehabkost@redhat.com>,
David Edmondson <david.edmondson@oracle.com>
Subject: [RFC PATCH 8/8] target/i386: Move X86XSaveArea into TCG
Date: Mon, 5 Jul 2021 11:46:32 +0100 [thread overview]
Message-ID: <20210705104632.2902400-9-david.edmondson@oracle.com> (raw)
In-Reply-To: <20210705104632.2902400-1-david.edmondson@oracle.com>
Given that TCG is now the only consumer of X86XSaveArea, move the
structure definition and associated offset declarations and checks to a
TCG specific header.
Signed-off-by: David Edmondson <david.edmondson@oracle.com>
---
target/i386/cpu.h | 57 ------------------------------------
target/i386/tcg/fpu_helper.c | 1 +
target/i386/tcg/tcg-cpu.h | 57 ++++++++++++++++++++++++++++++++++++
3 files changed, 58 insertions(+), 57 deletions(-)
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 96b672f8bd..0f7ddbfeae 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1305,48 +1305,6 @@ 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;
-
- /* Extended save areas: */
-
- /* AVX State: */
- XSaveAVX avx_state;
-
- /* Ensure that XSaveBNDREG is properly aligned. */
- uint8_t padding[XSAVE_BNDREG_OFFSET
- - sizeof(X86LegacyXSaveArea)
- - sizeof(X86XSaveHeader)
- - sizeof(XSaveAVX)];
-
- /* MPX State: */
- XSaveBNDREG bndreg_state;
- XSaveBNDCSR bndcsr_state;
- /* AVX-512 State: */
- XSaveOpmask opmask_state;
- XSaveZMM_Hi256 zmm_hi256_state;
- XSaveHi16_ZMM hi16_zmm_state;
- /* PKRU State: */
- XSavePKRU pkru_state;
-} X86XSaveArea;
-
QEMU_BUILD_BUG_ON(sizeof(XSaveAVX) != 0x100);
QEMU_BUILD_BUG_ON(sizeof(XSaveBNDREG) != 0x40);
QEMU_BUILD_BUG_ON(sizeof(XSaveBNDCSR) != 0x40);
@@ -1355,21 +1313,6 @@ QEMU_BUILD_BUG_ON(sizeof(XSaveZMM_Hi256) != 0x200);
QEMU_BUILD_BUG_ON(sizeof(XSaveHi16_ZMM) != 0x400);
QEMU_BUILD_BUG_ON(sizeof(XSavePKRU) != 0x8);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.fcw) != XSAVE_FCW_FSW_OFFSET);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.ftw) != XSAVE_FTW_FOP_OFFSET);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.fpip) != XSAVE_CWD_RIP_OFFSET);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.fpdp) != XSAVE_CWD_RDP_OFFSET);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.mxcsr) != XSAVE_MXCSR_OFFSET);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.fpregs) != XSAVE_ST_SPACE_OFFSET);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.xmm_regs) != XSAVE_XMM_SPACE_OFFSET);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, avx_state) != XSAVE_AVX_OFFSET);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, bndreg_state) != XSAVE_BNDREG_OFFSET);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, bndcsr_state) != XSAVE_BNDCSR_OFFSET);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, opmask_state) != XSAVE_OPMASK_OFFSET);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, zmm_hi256_state) != XSAVE_ZMM_HI256_OFFSET);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, hi16_zmm_state) != XSAVE_HI16_ZMM_OFFSET);
-QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, pkru_state) != XSAVE_PKRU_OFFSET);
-
typedef struct ExtSaveArea {
uint32_t feature, bits;
uint32_t offset, size;
diff --git a/target/i386/tcg/fpu_helper.c b/target/i386/tcg/fpu_helper.c
index 4e11965067..74bbe94b80 100644
--- a/target/i386/tcg/fpu_helper.c
+++ b/target/i386/tcg/fpu_helper.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include <math.h>
#include "cpu.h"
+#include "tcg-cpu.h"
#include "exec/helper-proto.h"
#include "fpu/softfloat.h"
#include "fpu/softfloat-macros.h"
diff --git a/target/i386/tcg/tcg-cpu.h b/target/i386/tcg/tcg-cpu.h
index 36bd300af0..53a8494455 100644
--- a/target/i386/tcg/tcg-cpu.h
+++ b/target/i386/tcg/tcg-cpu.h
@@ -19,6 +19,63 @@
#ifndef TCG_CPU_H
#define TCG_CPU_H
+#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;
+
+ /* Extended save areas: */
+
+ /* AVX State: */
+ XSaveAVX avx_state;
+
+ /* Ensure that XSaveBNDREG is properly aligned. */
+ uint8_t padding[XSAVE_BNDREG_OFFSET
+ - sizeof(X86LegacyXSaveArea)
+ - sizeof(X86XSaveHeader)
+ - sizeof(XSaveAVX)];
+
+ /* MPX State: */
+ XSaveBNDREG bndreg_state;
+ XSaveBNDCSR bndcsr_state;
+ /* AVX-512 State: */
+ XSaveOpmask opmask_state;
+ XSaveZMM_Hi256 zmm_hi256_state;
+ XSaveHi16_ZMM hi16_zmm_state;
+ /* PKRU State: */
+ XSavePKRU pkru_state;
+} X86XSaveArea;
+
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.fcw) != XSAVE_FCW_FSW_OFFSET);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.ftw) != XSAVE_FTW_FOP_OFFSET);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.fpip) != XSAVE_CWD_RIP_OFFSET);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.fpdp) != XSAVE_CWD_RDP_OFFSET);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.mxcsr) != XSAVE_MXCSR_OFFSET);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.fpregs) != XSAVE_ST_SPACE_OFFSET);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, legacy.xmm_regs) != XSAVE_XMM_SPACE_OFFSET);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, avx_state) != XSAVE_AVX_OFFSET);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, bndreg_state) != XSAVE_BNDREG_OFFSET);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, bndcsr_state) != XSAVE_BNDCSR_OFFSET);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, opmask_state) != XSAVE_OPMASK_OFFSET);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, zmm_hi256_state) != XSAVE_ZMM_HI256_OFFSET);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, hi16_zmm_state) != XSAVE_HI16_ZMM_OFFSET);
+QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, pkru_state) != XSAVE_PKRU_OFFSET);
+
bool tcg_cpu_realizefn(CPUState *cs, Error **errp);
#endif /* TCG_CPU_H */
--
2.30.2
next prev parent reply other threads:[~2021-07-05 10:46 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-05 10:46 [RFC PATCH 0/8] Derive XSAVE state component offsets from CPUID leaf 0xd where possible David Edmondson
2021-07-05 10:46 ` [RFC PATCH 1/8] target/i386: Declare constants for XSAVE offsets David Edmondson
2021-07-05 10:46 ` [RFC PATCH 2/8] target/i386: Consolidate the X86XSaveArea offset checks David Edmondson
2021-07-05 10:46 ` [RFC PATCH 3/8] target/i386: Clarify the padding requirements of X86XSaveArea David Edmondson
2021-07-05 10:46 ` [RFC PATCH 4/8] target/i386: Pass buffer and length to XSAVE helper David Edmondson
2021-07-05 10:46 ` [RFC PATCH 5/8] target/i386: Make x86_ext_save_areas visible outside cpu.c David Edmondson
2021-07-05 10:46 ` [RFC PATCH 6/8] target/i386: Observe XSAVE state area offsets David Edmondson
2021-07-05 10:46 ` [RFC PATCH 7/8] target/i386: Populate x86_ext_save_areas offsets using cpuid where possible David Edmondson
2021-07-05 10:46 ` David Edmondson [this message]
2021-07-07 1:09 ` [RFC PATCH 8/8] target/i386: Move X86XSaveArea into TCG Richard Henderson
2021-07-07 10:10 ` David Edmondson
2021-07-08 7:45 ` David Edmondson
2021-07-08 15:22 ` Richard Henderson
2021-07-08 16:13 ` David Edmondson
2021-07-05 16:57 ` [RFC PATCH 0/8] Derive XSAVE state component offsets from CPUID leaf 0xd where possible Paolo Bonzini
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