FAILED: patch "[PATCH] KVM: x86: use a separate asm-offsets.c file" failed to apply to 5.10-stable tree

The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

Possible dependencies:

debc5a1ec0d1 ("KVM: x86: use a separate asm-offsets.c file")
bb06650634d3 ("KVM: VMX: Convert launched argument to flags")
8bd200d23ec4 ("KVM: VMX: Flatten __vmx_vcpu_run()")
527a534c7326 ("x86/tdx: Provide common base for SEAMCALL and TDCALL C wrappers") 59bd54a84d15 ("x86/tdx: Detect running as a TDX guest in early boot")
6198311093da ("x86/cc: Move arch/x86/{kernel/cc_platform.c => coco/core.c}")
f94909ceb1ed ("x86: Prepare asm files for straight-line-speculation")
22da5a07c75e ("x86/lib/atomic64_386_32: Rename things")
1367afaa2ee9 ("x86/entry: Use the correct fence macro after swapgs in kernel CR3") c07e45553da1 ("x86/entry: Add a fence for kernel entry SWAPGS in paranoid_entry()") 6e5772c8d9cf ("Merge tag 'x86_cc_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From debc5a1ec0d195ffea70d11efeffb713de9fdbc7 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <[email protected]>
Date: Tue, 8 Nov 2022 09:44:53 +0100
Subject: [PATCH] KVM: x86: use a separate asm-offsets.c file

This already removes an ugly #include "" from asm-offsets.c, but especially it avoids a future error when trying to define asm-offsets for KVM's svm/svm.h header.

This would not work for kernel/asm-offsets.c, because svm/svm.h includes kvm_cache_regs.h which is not in the include path when compiling asm-offsets.c. The problem is not there if the .c file is in arch/x86/kvm.

index cb50589a7102..437308004ef2 100644
@@ -19,7 +19,6 @@
 #include <asm/suspend.h>
 #include <asm/tlbflush.h>
 #include <asm/tdx.h>
-#include "../kvm/vmx/vmx.h"
 
 #ifdef CONFIG_XEN
 #include <xen/interface/xen.h>

@@ -108,9 +107,4 @@ static void __used common(void)
 	OFFSET(TSS_sp0, tss_struct, x86_tss.sp0);
 	OFFSET(TSS_sp1, tss_struct, x86_tss.sp1);
 	OFFSET(TSS_sp2, tss_struct, x86_tss.sp2);
-
-	if (IS_ENABLED(CONFIG_KVM_INTEL)) {
-		BLANK();
-		OFFSET(VMX_spec_ctrl, vcpu_vmx, spec_ctrl);
-	}
 }

new file mode 100644
index 000000000000..615d6ff35c00
@@ -0,0 +1,2 @@
+/kvm-asm-offsets.s
+/kvm-asm-offsets.h

index 30f244b64523..a02cf9baacc8 100644
@@ -34,3 +34,12 @@ endif
 obj-$(CONFIG_KVM)	+= kvm.o
 obj-$(CONFIG_KVM_INTEL)	+= kvm-intel.o
 obj-$(CONFIG_KVM_AMD)	+= kvm-amd.o
+
+AFLAGS_vmx/vmenter.o    := -iquote $(obj)
+$(obj)/vmx/vmenter.o: $(obj)/kvm-asm-offsets.h
+
+$(obj)/kvm-asm-offsets.h: $(obj)/kvm-asm-offsets.s FORCE
+	$(call filechk,offsets,__KVM_ASM_OFFSETS_H__)
+
+targets += kvm-asm-offsets.s
+clean-files += kvm-asm-offsets.h

new file mode 100644
index 000000000000..9d84f2b32d7f
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Generate definitions needed by assembly language modules.
+ * This code generates raw asm output which is post-processed to extract
+ * and format the required data.
+ */
+#define COMPILE_OFFSETS
+
+#include <linux/kbuild.h>
+#include "vmx/vmx.h"
+
+static void __used common(void)
+{
+	if (IS_ENABLED(CONFIG_KVM_INTEL)) {
+		BLANK();
+		OFFSET(VMX_spec_ctrl, vcpu_vmx, spec_ctrl);
+	}
+}

index 8477d8bdd69c..0b5db4de4d09 100644
@@ -1,12 +1,12 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/asm.h>
-#include <asm/asm-offsets.h>
 #include <asm/bitsperlong.h>
 #include <asm/kvm_vcpu_regs.h>
 #include <asm/nospec-branch.h>
 #include <asm/percpu.h>
 #include <asm/segment.h>
+#include "kvm-asm-offsets.h"
 #include "run_flags.h"
 
 #define WORD_SIZE (BITS_PER_LONG / 8)