This is a note to let you know that I've just added the patch titled
selftests: KVM: Fix non-x86 compiling
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
selftests-kvm-fix-non-x86-compiling.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 577e022b7b41854911dcfb03678d8d2b930e8a3f Mon Sep 17 00:00:00 2001
From: Andrew Jones <drjones@xxxxxxxxxx>
Date: Tue, 14 Dec 2021 16:18:42 +0100
Subject: selftests: KVM: Fix non-x86 compiling
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From: Andrew Jones <drjones@xxxxxxxxxx>
commit 577e022b7b41854911dcfb03678d8d2b930e8a3f upstream.
Attempting to compile on a non-x86 architecture fails with
include/kvm_util.h: In function ‘vm_compute_max_gfn’:
include/kvm_util.h:79:21: error: dereferencing pointer to incomplete type ‘struct kvm_vm’
return ((1ULL << vm->pa_bits) >> vm->page_shift) - 1;
^~
This is because the declaration of struct kvm_vm is in
lib/kvm_util_internal.h as an effort to make it private to
the test lib code. We can still provide arch specific functions,
though, by making the generic function symbols weak. Do that to
fix the compile error.
Fixes: c8cc43c1eae2 ("selftests: KVM: avoid failures due to reserved HyperTransport region")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Andrew Jones <drjones@xxxxxxxxxx>
Message-Id: <20211214151842.848314-1-drjones@xxxxxxxxxx>
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/kvm/include/kvm_util.h | 10 +---------
tools/testing/selftests/kvm/lib/kvm_util.c | 5 +++++
2 files changed, 6 insertions(+), 9 deletions(-)
--- a/tools/testing/selftests/kvm/include/kvm_util.h
+++ b/tools/testing/selftests/kvm/include/kvm_util.h
@@ -69,15 +69,6 @@ enum vm_guest_mode {
#endif
-#if defined(__x86_64__)
-unsigned long vm_compute_max_gfn(struct kvm_vm *vm);
-#else
-static inline unsigned long vm_compute_max_gfn(struct kvm_vm *vm)
-{
- return ((1ULL << vm->pa_bits) >> vm->page_shift) - 1;
-}
-#endif
-
#define MIN_PAGE_SIZE (1U << MIN_PAGE_SHIFT)
#define PTES_PER_MIN_PAGE ptes_per_page(MIN_PAGE_SIZE)
@@ -318,6 +309,7 @@ bool vm_is_unrestricted_guest(struct kvm
unsigned int vm_get_page_size(struct kvm_vm *vm);
unsigned int vm_get_page_shift(struct kvm_vm *vm);
+unsigned long vm_compute_max_gfn(struct kvm_vm *vm);
uint64_t vm_get_max_gfn(struct kvm_vm *vm);
int vm_get_fd(struct kvm_vm *vm);
--- a/tools/testing/selftests/kvm/lib/kvm_util.c
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -2282,6 +2282,11 @@ unsigned int vm_get_page_shift(struct kv
return vm->page_shift;
}
+unsigned long __attribute__((weak)) vm_compute_max_gfn(struct kvm_vm *vm)
+{
+ return ((1ULL << vm->pa_bits) >> vm->page_shift) - 1;
+}
+
uint64_t vm_get_max_gfn(struct kvm_vm *vm)
{
return vm->max_gfn;
Patches currently in stable-queue which might be from drjones@xxxxxxxxxx are
queue-5.15/selftests-kvm-fix-non-x86-compiling.patch
