4.9-stable patches

added patches:
	revert-x86-kvm-fix-vcpu-id-indexed-array-sizes.patch

diff --git a/queue-4.9/revert-x86-kvm-fix-vcpu-id-indexed-array-sizes.patch b/queue-4.9/revert-x86-kvm-fix-vcpu-id-indexed-array-sizes.patch
new file mode 100644 (file)
index 0000000..453fbcc
--- /dev/null
+++ b/queue-4.9/revert-x86-kvm-fix-vcpu-id-indexed-array-sizes.patch
@@ -0,0 +1,55 @@
+From 1e254d0d86a0f2efd4190a89d5204b37c18c6381 Mon Sep 17 00:00:00 2001
+From: Juergen Gross <jgross@suse.com>
+Date: Mon, 13 Sep 2021 15:57:43 +0200
+Subject: Revert "x86/kvm: fix vcpu-id indexed array sizes"
+
+From: Juergen Gross <jgross@suse.com>
+
+commit 1e254d0d86a0f2efd4190a89d5204b37c18c6381 upstream.
+
+This reverts commit 76b4f357d0e7d8f6f0013c733e6cba1773c266d3.
+
+The commit has the wrong reasoning, as KVM_MAX_VCPU_ID is not defining the
+maximum allowed vcpu-id as its name suggests, but the number of vcpu-ids.
+So revert this patch again.
+
+Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
+Signed-off-by: Juergen Gross <jgross@suse.com>
+Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
+Message-Id: <20210913135745.13944-2-jgross@suse.com>
+Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/x86/kvm/ioapic.c |    2 +-
+ arch/x86/kvm/ioapic.h |    4 ++--
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+--- a/arch/x86/kvm/ioapic.c
++++ b/arch/x86/kvm/ioapic.c
+@@ -96,7 +96,7 @@ static unsigned long ioapic_read_indirec
+ static void rtc_irq_eoi_tracking_reset(struct kvm_ioapic *ioapic)
+ {
+       ioapic->rtc_status.pending_eoi = 0;
+-      bitmap_zero(ioapic->rtc_status.dest_map.map, KVM_MAX_VCPU_ID + 1);
++      bitmap_zero(ioapic->rtc_status.dest_map.map, KVM_MAX_VCPU_ID);
+ }
+ 
+ static void kvm_rtc_eoi_tracking_restore_all(struct kvm_ioapic *ioapic);
+--- a/arch/x86/kvm/ioapic.h
++++ b/arch/x86/kvm/ioapic.h
+@@ -42,13 +42,13 @@ struct kvm_vcpu;
+ 
+ struct dest_map {
+       /* vcpu bitmap where IRQ has been sent */
+-      DECLARE_BITMAP(map, KVM_MAX_VCPU_ID + 1);
++      DECLARE_BITMAP(map, KVM_MAX_VCPU_ID);
+ 
+       /*
+        * Vector sent to a given vcpu, only valid when
+        * the vcpu's bit in map is set
+        */
+-      u8 vectors[KVM_MAX_VCPU_ID + 1];
++      u8 vectors[KVM_MAX_VCPU_ID];
+ };
+ 
+ 

diff --git a/queue-4.9/series b/queue-4.9/series
index d20f7c73eeb8bf8a30365ab2d010a85a983b9792..727989ce7adf8d784609fd7d3f32c62accf6d59b 100644 (file)
--- a/queue-4.9/series
+++ b/queue-4.9/series
@@ -3,3 +3,4 @@ mm-zsmalloc-prepare-to-variable-max_physmem_bits.patch
 arch-pgtable-define-max_possible_physmem_bits-where-needed.patch
 arm-9120-1-revert-amba-make-use-of-1-irqs-warn.patch
 net-hso-register-netdev-later-to-avoid-a-race-condition.patch
+revert-x86-kvm-fix-vcpu-id-indexed-array-sizes.patch