[xen master] x86/svm: Merge nestedsvm.h into svm-types.h

[patchbot@xxxxxxx]

commit ada965a47a885ee74b9d9694778c166aa4859ea6
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Fri Dec 12 18:23:29 2025 +0000
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Mon Dec 15 11:24:26 2025 +0000

    x86/svm: Merge nestedsvm.h into svm-types.h
    
    While doing so, move the ns_gif field to beside ns_hap_enabled to remove 7
    padding bytes, and make some style fixes to comments/etc.
    
    No functional change.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/include/asm/hvm/svm-types.h     | 66 ++++++++++++++++++++++-
 xen/arch/x86/include/asm/hvm/svm/nestedsvm.h | 79 ----------------------------
 2 files changed, 65 insertions(+), 80 deletions(-)

diff --git a/xen/arch/x86/include/asm/hvm/svm-types.h 
b/xen/arch/x86/include/asm/hvm/svm-types.h
index 1c26daa981..637b94fa37 100644
--- a/xen/arch/x86/include/asm/hvm/svm-types.h
+++ b/xen/arch/x86/include/asm/hvm/svm-types.h
@@ -5,7 +5,71 @@
 #ifndef X86_SVM_TYPES_H
 #define X86_SVM_TYPES_H
 
+#include <xen/types.h>
+
 #include <asm/hvm/svm/vmcb.h>
-#include <asm/hvm/svm/nestedsvm.h>
+
+struct nestedsvm {
+    uint64_t ns_msr_hsavepa; /* MSR HSAVE_PA value */
+
+    /*
+     * l1 guest physical address of virtual vmcb used by prior VMRUN.  Needed
+     * for VMCB Cleanbit emulation.
+     */
+    uint64_t ns_ovvmcb_pa;
+
+    /* Cached real intercepts of the l2 guest */
+    uint32_t ns_cr_intercepts;
+    uint32_t ns_dr_intercepts;
+    uint32_t ns_exception_intercepts;
+    uint32_t ns_general1_intercepts;
+    uint32_t ns_general2_intercepts;
+
+    /* Cached real MSR permission bitmaps of the l2 guest */
+    unsigned long *ns_cached_msrpm;
+    /* Merged MSR permission bitmap */
+    unsigned long *ns_merged_msrpm;
+
+    /* guest physical address of virtual io permission map */
+    paddr_t ns_iomap_pa, ns_oiomap_pa;
+    /* Shadow io permission map */
+    unsigned long *ns_iomap;
+
+     /*
+      * Cached guest_cr[0] of l1 guest while l2 guest runs.  Needed to handle
+      * FPU context switching.
+      */
+    uint64_t ns_cr0;
+
+    /*
+     * Cache guest cr3/host cr3 the guest sets up for the l2 guest.
+     * Used by Shadow-on-Shadow and Nested-on-Nested.
+     * ns_vmcb_guestcr3: in l2 guest physical address space and points to
+     *     the l2 guest page table
+     * ns_vmcb_hostcr3: in l1 guest physical address space and points to
+     *     the l1 guest nested page table
+     */
+    uint64_t ns_vmcb_guestcr3, ns_vmcb_hostcr3;
+    uint32_t ns_asid;
+
+    bool ns_gif;
+    bool ns_hap_enabled;
+
+    /* Only meaningful when vmexit_pending flag is set */
+    struct {
+        uint64_t exitcode;  /* native exitcode to inject into l1 guest */
+        uint64_t exitinfo1; /* additional information to the exitcode */
+        uint64_t exitinfo2; /* additional information to the exitcode */
+    } ns_vmexit;
+
+    union {
+        uint32_t bytes;
+        struct {
+            uint32_t rflagsif:1;
+            uint32_t vintrmask:1;
+            uint32_t reserved:30;
+        } fields;
+    } ns_hostflags;
+};
 
 #endif /* X86_SVM_TYPES_H */
diff --git a/xen/arch/x86/include/asm/hvm/svm/nestedsvm.h 
b/xen/arch/x86/include/asm/hvm/svm/nestedsvm.h
deleted file mode 100644
index 205989e800..0000000000
--- a/xen/arch/x86/include/asm/hvm/svm/nestedsvm.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * nestedsvm.h: Nested Virtualization
- * Copyright (c) 2011, Advanced Micro Devices, Inc
- *
- */
-#ifndef __ASM_X86_HVM_SVM_NESTEDSVM_H__
-#define __ASM_X86_HVM_SVM_NESTEDSVM_H__
-
-#include <xen/types.h>
-
-struct nestedsvm {
-    bool ns_gif;
-    uint64_t ns_msr_hsavepa; /* MSR HSAVE_PA value */
-
-    /* l1 guest physical address of virtual vmcb used by prior VMRUN.
-     * Needed for VMCB Cleanbit emulation.
-     */
-    uint64_t ns_ovvmcb_pa;
-
-    /* Cached real intercepts of the l2 guest */
-    uint32_t ns_cr_intercepts;
-    uint32_t ns_dr_intercepts;
-    uint32_t ns_exception_intercepts;
-    uint32_t ns_general1_intercepts;
-    uint32_t ns_general2_intercepts;
-
-    /* Cached real MSR permission bitmaps of the l2 guest */
-    unsigned long *ns_cached_msrpm;
-    /* Merged MSR permission bitmap */
-    unsigned long *ns_merged_msrpm;
-
-    /* guest physical address of virtual io permission map */
-    paddr_t ns_iomap_pa, ns_oiomap_pa;
-    /* Shadow io permission map */
-    unsigned long *ns_iomap;
-
-    uint64_t ns_cr0; /* Cached guest_cr[0] of l1 guest while l2 guest runs.
-                      * Needed to handle FPU context switching */
-
-    /* Cache guest cr3/host cr3 the guest sets up for the l2 guest.
-     * Used by Shadow-on-Shadow and Nested-on-Nested.
-     * ns_vmcb_guestcr3: in l2 guest physical address space and points to
-     *     the l2 guest page table
-     * ns_vmcb_hostcr3: in l1 guest physical address space and points to
-     *     the l1 guest nested page table
-     */
-    uint64_t ns_vmcb_guestcr3, ns_vmcb_hostcr3;
-    uint32_t ns_asid;
-
-    bool ns_hap_enabled;
-
-    /* Only meaningful when vmexit_pending flag is set */
-    struct {
-        uint64_t exitcode;  /* native exitcode to inject into l1 guest */
-        uint64_t exitinfo1; /* additional information to the exitcode */
-        uint64_t exitinfo2; /* additional information to the exitcode */
-    } ns_vmexit;
-    union {
-        uint32_t bytes;
-        struct {
-            uint32_t rflagsif: 1;
-            uint32_t vintrmask: 1;
-            uint32_t reserved: 30;
-        } fields;
-    } ns_hostflags;
-};
-
-#endif /* ASM_X86_HVM_SVM_NESTEDSVM_H__ */
-
-/*
- * Local variables:
- * mode: C
- * c-file-style: "BSD"
- * c-basic-offset: 4
- * tab-width: 4
- * indent-tabs-mode: nil
- * End:
- */
--
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