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-rw-r--r--system/xen/dom0/config-4.4.29-xen.i486 (renamed from system/xen/dom0/config-4.4.19-xen.i486)4
-rw-r--r--system/xen/dom0/config-4.4.29-xen.x86_64 (renamed from system/xen/dom0/config-4.4.19-xen.x86_64)4
-rw-r--r--system/xen/dom0/kernel-xen.sh4
-rw-r--r--system/xen/domU/domU.sh2
-rw-r--r--system/xen/patches/xen-4.7-regression-when-saving-a-pv-guest.patch12
-rw-r--r--system/xen/xen.SlackBuild7
-rw-r--r--system/xen/xen.info6
-rw-r--r--system/xen/xsa/xsa182-unstable.patch102
-rw-r--r--system/xen/xsa/xsa183-unstable.patch75
-rw-r--r--system/xen/xsa/xsa184-qemut-master.patch43
-rw-r--r--system/xen/xsa/xsa184-qemuu-master.patch43
-rw-r--r--system/xen/xsa/xsa185.patch38
-rw-r--r--system/xen/xsa/xsa186-0001-x86-emulate-Correct-boundary-interactions-of-emulate.patch73
-rw-r--r--system/xen/xsa/xsa186-4.7-0002-hvm-fep-Allow-testing-of-instructions-crossing-the.patch28
-rw-r--r--system/xen/xsa/xsa187-4.7-0001-x86-shadow-Avoid-overflowing-sh_ctxt-seg.patch42
-rw-r--r--system/xen/xsa/xsa187-4.7-0002-x86-segment-Bounds-check-accesses-to-emulation-ctx.patch153
-rw-r--r--system/xen/xsa/xsa190.patch173
17 files changed, 12 insertions, 797 deletions
diff --git a/system/xen/dom0/config-4.4.19-xen.i486 b/system/xen/dom0/config-4.4.29-xen.i486
index b1014d4caf..3af4f7cd41 100644
--- a/system/xen/dom0/config-4.4.19-xen.i486
+++ b/system/xen/dom0/config-4.4.29-xen.i486
@@ -1,6 +1,6 @@
#
# Automatically generated file; DO NOT EDIT.
-# Linux/x86 4.4.19 Kernel Configuration
+# Linux/x86 4.4.29 Kernel Configuration
#
# CONFIG_64BIT is not set
CONFIG_X86_32=y
@@ -379,7 +379,7 @@ CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
-# CONFIG_PARAVIRT_SPINLOCKS is not set
+CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_XEN=y
CONFIG_XEN_DOM0=y
CONFIG_XEN_PVHVM=y
diff --git a/system/xen/dom0/config-4.4.19-xen.x86_64 b/system/xen/dom0/config-4.4.29-xen.x86_64
index c9b1e20335..7b4e532ab2 100644
--- a/system/xen/dom0/config-4.4.19-xen.x86_64
+++ b/system/xen/dom0/config-4.4.29-xen.x86_64
@@ -1,6 +1,6 @@
#
# Automatically generated file; DO NOT EDIT.
-# Linux/x86 4.4.19 Kernel Configuration
+# Linux/x86 4.4.29 Kernel Configuration
#
CONFIG_64BIT=y
CONFIG_X86_64=y
@@ -390,7 +390,7 @@ CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
-# CONFIG_PARAVIRT_SPINLOCKS is not set
+CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_XEN=y
CONFIG_XEN_DOM0=y
CONFIG_XEN_PVHVM=y
diff --git a/system/xen/dom0/kernel-xen.sh b/system/xen/dom0/kernel-xen.sh
index afc6a67482..b84513786e 100644
--- a/system/xen/dom0/kernel-xen.sh
+++ b/system/xen/dom0/kernel-xen.sh
@@ -5,8 +5,8 @@
# Written by Chris Abela <chris.abela@maltats.com>, 20100515
# Modified by Mario Preksavec <mario@slackware.hr>
-KERNEL=${KERNEL:-4.4.19}
-XEN=${XEN:-4.7.0}
+KERNEL=${KERNEL:-4.4.29}
+XEN=${XEN:-4.7.1}
BOOTLOADER=${BOOTLOADER:-lilo}
ROOTMOD=${ROOTMOD:-ext4}
diff --git a/system/xen/domU/domU.sh b/system/xen/domU/domU.sh
index 5d0825cebe..1cd3e0d92c 100644
--- a/system/xen/domU/domU.sh
+++ b/system/xen/domU/domU.sh
@@ -7,7 +7,7 @@
set -e
-KERNEL=${KERNEL:-4.4.19}
+KERNEL=${KERNEL:-4.4.29}
# Build an image for the root file system and another for the swap
# Default values : 8GB and 500MB resepectively.
diff --git a/system/xen/patches/xen-4.7-regression-when-saving-a-pv-guest.patch b/system/xen/patches/xen-4.7-regression-when-saving-a-pv-guest.patch
deleted file mode 100644
index 457fa51f23..0000000000
--- a/system/xen/patches/xen-4.7-regression-when-saving-a-pv-guest.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff --git a/tools/libxc/xc_sr_save_x86_pv.c b/tools/libxc/xc_sr_save_x86_pv.c
-index 4a29460..7043409 100644
---- a/tools/libxc/xc_sr_save_x86_pv.c
-+++ b/tools/libxc/xc_sr_save_x86_pv.c
-@@ -430,6 +430,8 @@ static int map_p2m_list(struct xc_sr_context *ctx, uint64_t p2m_cr3)
-
- if ( level == 2 )
- {
-+ if ( saved_idx == idx_end )
-+ saved_idx++;
- max_pfn = ((xen_pfn_t)saved_idx << 9) * fpp - 1;
- if ( max_pfn < ctx->x86_pv.max_pfn )
diff --git a/system/xen/xen.SlackBuild b/system/xen/xen.SlackBuild
index 3e80785367..13ab074516 100644
--- a/system/xen/xen.SlackBuild
+++ b/system/xen/xen.SlackBuild
@@ -23,8 +23,8 @@
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
PRGNAM=xen
-VERSION=${VERSION:-4.7.0}
-BUILD=${BUILD:-2}
+VERSION=${VERSION:-4.7.1}
+BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
SEABIOS=${SEABIOS:-1.9.2}
@@ -117,9 +117,6 @@ for i in $CWD/xsa/* ; do
esac
done
-# Upstream fixes
-patch -p1 <$CWD/patches/xen-4.7-regression-when-saving-a-pv-guest.patch
-
# Don't link with libssh and bluez by default
sed "s/@@CONF_LIBSSH2@@/$CONF_LIBSSH2/;s/@@CONF_BLUEZ@@/$CONF_BLUEZ/" \
$CWD/patches/qemu_configure_options.diff | patch -p1
diff --git a/system/xen/xen.info b/system/xen/xen.info
index 0ad01f3d59..5822c1224f 100644
--- a/system/xen/xen.info
+++ b/system/xen/xen.info
@@ -1,7 +1,7 @@
PRGNAM="xen"
-VERSION="4.7.0"
+VERSION="4.7.1"
HOMEPAGE="http://www.xenproject.org/"
-DOWNLOAD="http://mirror.slackware.hr/sources/xen/xen-4.7.0.tar.gz \
+DOWNLOAD="http://mirror.slackware.hr/sources/xen/xen-4.7.1.tar.gz \
http://mirror.slackware.hr/sources/xen-extfiles/ipxe-git-9a93db3f0947484e30e753bbd61a10b17336e20e.tar.gz \
http://mirror.slackware.hr/sources/xen-extfiles/lwip-1.3.0.tar.gz \
http://mirror.slackware.hr/sources/xen-extfiles/zlib-1.2.3.tar.gz \
@@ -13,7 +13,7 @@ DOWNLOAD="http://mirror.slackware.hr/sources/xen/xen-4.7.0.tar.gz \
http://mirror.slackware.hr/sources/xen-extfiles/tpm_emulator-0.7.4.tar.gz \
http://mirror.slackware.hr/sources/xen-extfiles/seabios-1.9.2.tar.gz
http://mirror.slackware.hr/sources/xen-extfiles/ovmf-git-52a99493cce88a9d4ec8a02d7f1bd1a1001ce60d.tar.gz"
-MD5SUM="3aa4e01bf37a3a5bc8572907cb88e649 \
+MD5SUM="8e258d87a1008a3200eec6989e164fa4 \
7496268cebf47d5c9ccb0696e3b26065 \
36cc57650cffda9a0269493be2a169bb \
debc62758716a169df9f62e6ab2bc634 \
diff --git a/system/xen/xsa/xsa182-unstable.patch b/system/xen/xsa/xsa182-unstable.patch
deleted file mode 100644
index 3e40e8a530..0000000000
--- a/system/xen/xsa/xsa182-unstable.patch
+++ /dev/null
@@ -1,102 +0,0 @@
-From 00593655e231ed5ea20704120037026e33b83fbb Mon Sep 17 00:00:00 2001
-From: Andrew Cooper <andrew.cooper3@citrix.com>
-Date: Mon, 11 Jul 2016 14:32:03 +0100
-Subject: [PATCH] x86/pv: Remove unsafe bits from the mod_l?_entry() fastpath
-
-All changes in writeability and cacheability must go through full
-re-validation.
-
-Rework the logic as a whitelist, to make it clearer to follow.
-
-This is XSA-182
-
-Reported-by: Jérémie Boutoille <jboutoille@ext.quarkslab.com>
-Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
-Reviewed-by: Tim Deegan <tim@xen.org>
----
- xen/arch/x86/mm.c | 28 ++++++++++++++++------------
- xen/include/asm-x86/page.h | 1 +
- 2 files changed, 17 insertions(+), 12 deletions(-)
-
-diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
-index dbcf6cb..56ca19f 100644
---- a/xen/arch/x86/mm.c
-+++ b/xen/arch/x86/mm.c
-@@ -1852,6 +1852,14 @@ static inline int update_intpte(intpte_t *p,
- _t ## e_get_intpte(_o), _t ## e_get_intpte(_n), \
- (_m), (_v), (_ad))
-
-+/*
-+ * PTE flags that a guest may change without re-validating the PTE.
-+ * All other bits affect translation, caching, or Xen's safety.
-+ */
-+#define FASTPATH_FLAG_WHITELIST \
-+ (_PAGE_NX_BIT | _PAGE_AVAIL_HIGH | _PAGE_AVAIL | _PAGE_GLOBAL | \
-+ _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_USER)
-+
- /* Update the L1 entry at pl1e to new value nl1e. */
- static int mod_l1_entry(l1_pgentry_t *pl1e, l1_pgentry_t nl1e,
- unsigned long gl1mfn, int preserve_ad,
-@@ -1891,9 +1899,8 @@ static int mod_l1_entry(l1_pgentry_t *pl1e, l1_pgentry_t nl1e,
- nl1e = l1e_from_pfn(page_to_mfn(page), l1e_get_flags(nl1e));
- }
-
-- /* Fast path for identical mapping, r/w, presence, and cachability. */
-- if ( !l1e_has_changed(ol1e, nl1e,
-- PAGE_CACHE_ATTRS | _PAGE_RW | _PAGE_PRESENT) )
-+ /* Fast path for sufficiently-similar mappings. */
-+ if ( !l1e_has_changed(ol1e, nl1e, ~FASTPATH_FLAG_WHITELIST) )
- {
- adjust_guest_l1e(nl1e, pt_dom);
- rc = UPDATE_ENTRY(l1, pl1e, ol1e, nl1e, gl1mfn, pt_vcpu,
-@@ -1970,11 +1977,8 @@ static int mod_l2_entry(l2_pgentry_t *pl2e,
- return -EINVAL;
- }
-
-- /* Fast path for identical mapping and presence. */
-- if ( !l2e_has_changed(ol2e, nl2e,
-- unlikely(opt_allow_superpage)
-- ? _PAGE_PSE | _PAGE_RW | _PAGE_PRESENT
-- : _PAGE_PRESENT) )
-+ /* Fast path for sufficiently-similar mappings. */
-+ if ( !l2e_has_changed(ol2e, nl2e, ~FASTPATH_FLAG_WHITELIST) )
- {
- adjust_guest_l2e(nl2e, d);
- if ( UPDATE_ENTRY(l2, pl2e, ol2e, nl2e, pfn, vcpu, preserve_ad) )
-@@ -2039,8 +2043,8 @@ static int mod_l3_entry(l3_pgentry_t *pl3e,
- return -EINVAL;
- }
-
-- /* Fast path for identical mapping and presence. */
-- if ( !l3e_has_changed(ol3e, nl3e, _PAGE_PRESENT) )
-+ /* Fast path for sufficiently-similar mappings. */
-+ if ( !l3e_has_changed(ol3e, nl3e, ~FASTPATH_FLAG_WHITELIST) )
- {
- adjust_guest_l3e(nl3e, d);
- rc = UPDATE_ENTRY(l3, pl3e, ol3e, nl3e, pfn, vcpu, preserve_ad);
-@@ -2103,8 +2107,8 @@ static int mod_l4_entry(l4_pgentry_t *pl4e,
- return -EINVAL;
- }
-
-- /* Fast path for identical mapping and presence. */
-- if ( !l4e_has_changed(ol4e, nl4e, _PAGE_PRESENT) )
-+ /* Fast path for sufficiently-similar mappings. */
-+ if ( !l4e_has_changed(ol4e, nl4e, ~FASTPATH_FLAG_WHITELIST) )
- {
- adjust_guest_l4e(nl4e, d);
- rc = UPDATE_ENTRY(l4, pl4e, ol4e, nl4e, pfn, vcpu, preserve_ad);
-diff --git a/xen/include/asm-x86/page.h b/xen/include/asm-x86/page.h
-index 224852a..4ae387f 100644
---- a/xen/include/asm-x86/page.h
-+++ b/xen/include/asm-x86/page.h
-@@ -313,6 +313,7 @@ void efi_update_l4_pgtable(unsigned int l4idx, l4_pgentry_t);
- #define _PAGE_AVAIL2 _AC(0x800,U)
- #define _PAGE_AVAIL _AC(0xE00,U)
- #define _PAGE_PSE_PAT _AC(0x1000,U)
-+#define _PAGE_AVAIL_HIGH (_AC(0x7ff, U) << 12)
- #define _PAGE_NX (cpu_has_nx ? _PAGE_NX_BIT : 0)
- /* non-architectural flags */
- #define _PAGE_PAGED 0x2000U
---
-2.1.4
-
diff --git a/system/xen/xsa/xsa183-unstable.patch b/system/xen/xsa/xsa183-unstable.patch
deleted file mode 100644
index 573c530112..0000000000
--- a/system/xen/xsa/xsa183-unstable.patch
+++ /dev/null
@@ -1,75 +0,0 @@
-From 2fd4f34058fb5f87fbd80978dbd2cb458aff565d Mon Sep 17 00:00:00 2001
-From: Andrew Cooper <andrew.cooper3@citrix.com>
-Date: Wed, 15 Jun 2016 18:32:14 +0100
-Subject: [PATCH] x86/entry: Avoid SMAP violation in
- compat_create_bounce_frame()
-
-A 32bit guest kernel might be running on user mappings.
-compat_create_bounce_frame() must whitelist its guest accesses to avoid
-risking a SMAP violation.
-
-For both variants of create_bounce_frame(), re-blacklist user accesses if
-execution exits via an exception table redirection.
-
-This is XSA-183 / CVE-2016-6259
-
-Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
-Reviewed-by: George Dunlap <george.dunlap@citrix.com>
-Reviewed-by: Jan Beulich <jbeulich@suse.com>
----
-v2:
- * Include CLAC on the exit paths from compat_create_bounce_frame which occur
- from faults attempting to load %fs
- * Reposition ASM_STAC to avoid breaking the macro-op fusion of test/jz
----
- xen/arch/x86/x86_64/compat/entry.S | 3 +++
- xen/arch/x86/x86_64/entry.S | 2 ++
- 2 files changed, 5 insertions(+)
-
-diff --git a/xen/arch/x86/x86_64/compat/entry.S b/xen/arch/x86/x86_64/compat/entry.S
-index 7f02afd..e80c53c 100644
---- a/xen/arch/x86/x86_64/compat/entry.S
-+++ b/xen/arch/x86/x86_64/compat/entry.S
-@@ -318,6 +318,7 @@ ENTRY(compat_int80_direct_trap)
- compat_create_bounce_frame:
- ASSERT_INTERRUPTS_ENABLED
- mov %fs,%edi
-+ ASM_STAC
- testb $2,UREGS_cs+8(%rsp)
- jz 1f
- /* Push new frame at registered guest-OS stack base. */
-@@ -364,6 +365,7 @@ compat_create_bounce_frame:
- movl TRAPBOUNCE_error_code(%rdx),%eax
- .Lft8: movl %eax,%fs:(%rsi) # ERROR CODE
- 1:
-+ ASM_CLAC
- /* Rewrite our stack frame and return to guest-OS mode. */
- /* IA32 Ref. Vol. 3: TF, VM, RF and NT flags are cleared on trap. */
- andl $~(X86_EFLAGS_VM|X86_EFLAGS_RF|\
-@@ -403,6 +405,7 @@ compat_crash_page_fault_4:
- addl $4,%esi
- compat_crash_page_fault:
- .Lft14: mov %edi,%fs
-+ ASM_CLAC
- movl %esi,%edi
- call show_page_walk
- jmp dom_crash_sync_extable
-diff --git a/xen/arch/x86/x86_64/entry.S b/xen/arch/x86/x86_64/entry.S
-index ad8c64c..f7178cd 100644
---- a/xen/arch/x86/x86_64/entry.S
-+++ b/xen/arch/x86/x86_64/entry.S
-@@ -420,9 +420,11 @@ domain_crash_page_fault_16:
- domain_crash_page_fault_8:
- addq $8,%rsi
- domain_crash_page_fault:
-+ ASM_CLAC
- movq %rsi,%rdi
- call show_page_walk
- ENTRY(dom_crash_sync_extable)
-+ ASM_CLAC
- # Get out of the guest-save area of the stack.
- GET_STACK_END(ax)
- leaq STACK_CPUINFO_FIELD(guest_cpu_user_regs)(%rax),%rsp
---
-2.1.4
-
diff --git a/system/xen/xsa/xsa184-qemut-master.patch b/system/xen/xsa/xsa184-qemut-master.patch
deleted file mode 100644
index d15167f4ac..0000000000
--- a/system/xen/xsa/xsa184-qemut-master.patch
+++ /dev/null
@@ -1,43 +0,0 @@
-From 17d8c4e47dfb41cb6778520ff2eab7a11fe12dfd Mon Sep 17 00:00:00 2001
-From: P J P <ppandit@redhat.com>
-Date: Tue, 26 Jul 2016 15:31:59 +0100
-Subject: [PATCH] virtio: error out if guest exceeds virtqueue size
-
-A broken or malicious guest can submit more requests than the virtqueue
-size permits.
-
-The guest can submit requests without bothering to wait for completion
-and is therefore not bound by virtqueue size. This requires reusing
-vring descriptors in more than one request, which is incorrect but
-possible. Processing a request allocates a VirtQueueElement and
-therefore causes unbounded memory allocation controlled by the guest.
-
-Exit with an error if the guest provides more requests than the
-virtqueue size permits. This bounds memory allocation and makes the
-buggy guest visible to the user.
-
-Reported-by: Zhenhao Hong <zhenhaohong@gmail.com>
-Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
----
- hw/virtio.c | 5 +++++
- 1 file changed, 5 insertions(+)
-
-diff --git a/hw/virtio.c b/hw/virtio.c
-index c26feff..42897bf 100644
---- a/hw/virtio.c
-+++ b/hw/virtio.c
-@@ -421,6 +421,11 @@ int virtqueue_pop(VirtQueue *vq, VirtQueueElement *elem)
- /* When we start there are none of either input nor output. */
- elem->out_num = elem->in_num = 0;
-
-+ if (vq->inuse >= vq->vring.num) {
-+ fprintf(stderr, "Virtqueue size exceeded");
-+ exit(1);
-+ }
-+
- i = head = virtqueue_get_head(vq, vq->last_avail_idx++);
- do {
- struct iovec *sg;
---
-2.1.4
-
diff --git a/system/xen/xsa/xsa184-qemuu-master.patch b/system/xen/xsa/xsa184-qemuu-master.patch
deleted file mode 100644
index ef96bff80c..0000000000
--- a/system/xen/xsa/xsa184-qemuu-master.patch
+++ /dev/null
@@ -1,43 +0,0 @@
-From e469db25d6b2e5c71cd15451889226641c53a5cd Mon Sep 17 00:00:00 2001
-From: P J P <ppandit@redhat.com>
-Date: Mon, 25 Jul 2016 17:37:18 +0530
-Subject: [PATCH] virtio: error out if guest exceeds virtqueue size
-
-A broken or malicious guest can submit more requests than the virtqueue
-size permits.
-
-The guest can submit requests without bothering to wait for completion
-and is therefore not bound by virtqueue size. This requires reusing
-vring descriptors in more than one request, which is incorrect but
-possible. Processing a request allocates a VirtQueueElement and
-therefore causes unbounded memory allocation controlled by the guest.
-
-Exit with an error if the guest provides more requests than the
-virtqueue size permits. This bounds memory allocation and makes the
-buggy guest visible to the user.
-
-Reported-by: Zhenhao Hong <zhenhaohong@gmail.com>
-Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
----
- hw/virtio/virtio.c | 5 +++++
- 1 file changed, 5 insertions(+)
-
-diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
-index d24f775..f8ac0fb 100644
---- a/hw/virtio/virtio.c
-+++ b/hw/virtio/virtio.c
-@@ -483,6 +483,11 @@ int virtqueue_pop(VirtQueue *vq, VirtQueueElement *elem)
-
- max = vq->vring.num;
-
-+ if (vq->inuse >= max) {
-+ error_report("Virtqueue size exceeded");
-+ exit(1);
-+ }
-+
- i = head = virtqueue_get_head(vq, vq->last_avail_idx++);
- if (virtio_vdev_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX)) {
- vring_set_avail_event(vq, vq->last_avail_idx);
---
-2.1.4
-
diff --git a/system/xen/xsa/xsa185.patch b/system/xen/xsa/xsa185.patch
deleted file mode 100644
index a4c133ee19..0000000000
--- a/system/xen/xsa/xsa185.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From 30aba4992b18245c436f16df7326a16c01a51570 Mon Sep 17 00:00:00 2001
-From: Jan Beulich <jbeulich@suse.com>
-Date: Mon, 8 Aug 2016 10:58:12 +0100
-Subject: x86/32on64: don't allow recursive page tables from L3
-
-L3 entries are special in PAE mode, and hence can't reasonably be used
-for setting up recursive (and hence linear) page table mappings. Since
-abuse is possible when the guest in fact gets run on 4-level page
-tables, this needs to be excluded explicitly.
-
-This is XSA-185.
-
-Reported-by: Jérémie Boutoille <jboutoille@ext.quarkslab.com>
-Reported-by: 栾尚聪(好风) <shangcong.lsc@alibaba-inc.com>
-Signed-off-by: Jan Beulich <jbeulich@suse.com>
-Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
----
- xen/arch/x86/mm.c | 4 +++-
- 1 file changed, 3 insertions(+), 1 deletion(-)
-
-diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
-index 109b8be..69b8b8d 100644
---- a/xen/arch/x86/mm.c
-+++ b/xen/arch/x86/mm.c
-@@ -1122,7 +1122,9 @@ get_page_from_l3e(
-
- rc = get_page_and_type_from_pagenr(
- l3e_get_pfn(l3e), PGT_l2_page_table, d, partial, 1);
-- if ( unlikely(rc == -EINVAL) && get_l3_linear_pagetable(l3e, pfn, d) )
-+ if ( unlikely(rc == -EINVAL) &&
-+ !is_pv_32bit_domain(d) &&
-+ get_l3_linear_pagetable(l3e, pfn, d) )
- rc = 0;
-
- return rc;
---
-2.1.4
-
diff --git a/system/xen/xsa/xsa186-0001-x86-emulate-Correct-boundary-interactions-of-emulate.patch b/system/xen/xsa/xsa186-0001-x86-emulate-Correct-boundary-interactions-of-emulate.patch
deleted file mode 100644
index b257497085..0000000000
--- a/system/xen/xsa/xsa186-0001-x86-emulate-Correct-boundary-interactions-of-emulate.patch
+++ /dev/null
@@ -1,73 +0,0 @@
-From e938be013ba73ff08fa4f1d8670501aacefde7fb Mon Sep 17 00:00:00 2001
-From: Andrew Cooper <andrew.cooper3@citrix.com>
-Date: Fri, 22 Jul 2016 16:02:54 +0000
-Subject: [PATCH 1/2] x86/emulate: Correct boundary interactions of emulated
- instructions
-
-This reverts most of c/s 0640ffb6 "x86emul: fix rIP handling".
-
-Experimentally, in long mode processors will execute an instruction stream
-which crosses the 64bit -1 -> 0 virtual boundary, whether the instruction
-boundary is aligned on the virtual boundary, or is misaligned.
-
-In compatibility mode, Intel processors will execute an instruction stream
-which crosses the 32bit -1 -> 0 virtual boundary, while AMD processors raise a
-segmentation fault. Xen's segmentation behaviour matches AMD.
-
-For 16bit code, hardware does not ever truncated %ip. %eip is always used and
-behaves normally as a 32bit register, including in 16bit protected mode
-segments, as well as in Real and Unreal mode.
-
-This is XSA-186
-
-Reported-by: Brian Marcotte <marcotte@panix.com>
-Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
-Reviewed-by: Jan Beulich <jbeulich@suse.com>
----
- xen/arch/x86/x86_emulate/x86_emulate.c | 22 ++++------------------
- 1 file changed, 4 insertions(+), 18 deletions(-)
-
-diff --git a/xen/arch/x86/x86_emulate/x86_emulate.c b/xen/arch/x86/x86_emulate/x86_emulate.c
-index d5a56cf..bf3529a 100644
---- a/xen/arch/x86/x86_emulate/x86_emulate.c
-+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
-@@ -1570,10 +1570,6 @@ x86_emulate(
- #endif
- }
-
-- /* Truncate rIP to def_ad_bytes (2 or 4) if necessary. */
-- if ( def_ad_bytes < sizeof(_regs.eip) )
-- _regs.eip &= (1UL << (def_ad_bytes * 8)) - 1;
--
- /* Prefix bytes. */
- for ( ; ; )
- {
-@@ -3906,21 +3902,11 @@ x86_emulate(
-
- /* Commit shadow register state. */
- _regs.eflags &= ~EFLG_RF;
-- switch ( __builtin_expect(def_ad_bytes, sizeof(_regs.eip)) )
-- {
-- uint16_t ip;
-
-- case 2:
-- ip = _regs.eip;
-- _regs.eip = ctxt->regs->eip;
-- *(uint16_t *)&_regs.eip = ip;
-- break;
--#ifdef __x86_64__
-- case 4:
-- _regs.rip = _regs._eip;
-- break;
--#endif
-- }
-+ /* Zero the upper 32 bits of %rip if not in long mode. */
-+ if ( def_ad_bytes < sizeof(_regs.eip) )
-+ _regs.eip = (uint32_t)_regs.eip;
-+
- *ctxt->regs = _regs;
-
- done:
---
-2.1.4
-
diff --git a/system/xen/xsa/xsa186-4.7-0002-hvm-fep-Allow-testing-of-instructions-crossing-the.patch b/system/xen/xsa/xsa186-4.7-0002-hvm-fep-Allow-testing-of-instructions-crossing-the.patch
deleted file mode 100644
index cb73a81042..0000000000
--- a/system/xen/xsa/xsa186-4.7-0002-hvm-fep-Allow-testing-of-instructions-crossing-the.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-From: Andrew Cooper <andrew.cooper3@citrix.com>
-Subject: hvm/fep: Allow testing of instructions crossing the -1 -> 0 virtual boundary
-
-The Force Emulation Prefix is named to follow its PV counterpart for cpuid or
-rdtsc, but isn't really an instruction prefix. It behaves as a break-out into
-Xen, with the purpose of emulating the next instruction in the current state.
-
-It is important to be able to test legal situations which occur in real
-hardware, including instruction which cross certain boundaries, and
-instructions starting at 0.
-
-Reported-by: Brian Marcotte <marcotte@panix.com>
-Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
-Reviewed-by: Jan Beulich <jbeulich@suse.com>
-
---- a/xen/arch/x86/hvm/hvm.c
-+++ b/xen/arch/x86/hvm/hvm.c
-@@ -3905,6 +3905,10 @@ void hvm_ud_intercept(struct cpu_user_re
- {
- regs->eip += sizeof(sig);
- regs->eflags &= ~X86_EFLAGS_RF;
-+
-+ /* Zero the upper 32 bits of %rip if not in long mode. */
-+ if ( !(hvm_long_mode_enabled(cur) && cs.attr.fields.l) )
-+ regs->eip = regs->_eip;
- }
- }
-
diff --git a/system/xen/xsa/xsa187-4.7-0001-x86-shadow-Avoid-overflowing-sh_ctxt-seg.patch b/system/xen/xsa/xsa187-4.7-0001-x86-shadow-Avoid-overflowing-sh_ctxt-seg.patch
deleted file mode 100644
index bc99596083..0000000000
--- a/system/xen/xsa/xsa187-4.7-0001-x86-shadow-Avoid-overflowing-sh_ctxt-seg.patch
+++ /dev/null
@@ -1,42 +0,0 @@
-From: Andrew Cooper <andrew.cooper3@citrix.com>
-Subject: x86/shadow: Avoid overflowing sh_ctxt->seg_reg[]
-
-hvm_get_seg_reg() does not perform a range check on its input segment, calls
-hvm_get_segment_register() and writes straight into sh_ctxt->seg_reg[].
-
-x86_seg_none is outside the bounds of sh_ctxt->seg_reg[], and will hit a BUG()
-in {vmx,svm}_get_segment_register().
-
-HVM guests running with shadow paging can end up performing a virtual to
-linear translation with x86_seg_none. This is used for addresses which are
-already linear. However, none of this is a legitimate pagetable update, so
-fail the emulation in such a case.
-
-This is XSA-187
-
-Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
-Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
-Reviewed-by: Tim Deegan <tim@xen.org>
-
---- a/xen/arch/x86/mm/shadow/common.c
-+++ b/xen/arch/x86/mm/shadow/common.c
-@@ -140,9 +140,18 @@ static int hvm_translate_linear_addr(
- struct sh_emulate_ctxt *sh_ctxt,
- unsigned long *paddr)
- {
-- struct segment_register *reg = hvm_get_seg_reg(seg, sh_ctxt);
-+ struct segment_register *reg;
- int okay;
-
-+ /*
-+ * Can arrive here with non-user segments. However, no such cirucmstance
-+ * is part of a legitimate pagetable update, so fail the emulation.
-+ */
-+ if ( !is_x86_user_segment(seg) )
-+ return X86EMUL_UNHANDLEABLE;
-+
-+ reg = hvm_get_seg_reg(seg, sh_ctxt);
-+
- okay = hvm_virtual_to_linear_addr(
- seg, reg, offset, bytes, access_type, sh_ctxt->ctxt.addr_size, paddr);
-
diff --git a/system/xen/xsa/xsa187-4.7-0002-x86-segment-Bounds-check-accesses-to-emulation-ctx.patch b/system/xen/xsa/xsa187-4.7-0002-x86-segment-Bounds-check-accesses-to-emulation-ctx.patch
deleted file mode 100644
index 5529701d36..0000000000
--- a/system/xen/xsa/xsa187-4.7-0002-x86-segment-Bounds-check-accesses-to-emulation-ctx.patch
+++ /dev/null
@@ -1,153 +0,0 @@
-From: Andrew Cooper <andrew.cooper3@citrix.com>
-Subject: x86/segment: Bounds check accesses to emulation ctxt->seg_reg[]
-
-HVM HAP codepaths have space for all segment registers in the seg_reg[]
-cache (with x86_seg_none still risking an array overrun), while the shadow
-codepaths only have space for the user segments.
-
-Range check the input segment of *_get_seg_reg() against the size of the array
-used to cache the results, to avoid overruns in the case that the callers
-don't filter their input suitably.
-
-Subsume the is_x86_user_segment(seg) checks from the shadow code, which were
-an incomplete attempt at range checking, and are now superceeded. Make
-hvm_get_seg_reg() static, as it is not used outside of shadow/common.c
-
-No functional change, but far easier to reason that no overflow is possible.
-
-Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
-Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
-Acked-by: Tim Deegan <tim@xen.org>
-Acked-by: Jan Beulich <jbeulich@suse.com>
-
---- a/xen/arch/x86/hvm/emulate.c
-+++ b/xen/arch/x86/hvm/emulate.c
-@@ -534,6 +534,8 @@ static int hvmemul_virtual_to_linear(
- *reps = min_t(unsigned long, *reps, max_reps);
-
- reg = hvmemul_get_seg_reg(seg, hvmemul_ctxt);
-+ if ( IS_ERR(reg) )
-+ return -PTR_ERR(reg);
-
- if ( (hvmemul_ctxt->ctxt.regs->eflags & X86_EFLAGS_DF) && (*reps > 1) )
- {
-@@ -1369,6 +1371,10 @@ static int hvmemul_read_segment(
- struct hvm_emulate_ctxt *hvmemul_ctxt =
- container_of(ctxt, struct hvm_emulate_ctxt, ctxt);
- struct segment_register *sreg = hvmemul_get_seg_reg(seg, hvmemul_ctxt);
-+
-+ if ( IS_ERR(sreg) )
-+ return -PTR_ERR(sreg);
-+
- memcpy(reg, sreg, sizeof(struct segment_register));
- return X86EMUL_OKAY;
- }
-@@ -1382,6 +1388,9 @@ static int hvmemul_write_segment(
- container_of(ctxt, struct hvm_emulate_ctxt, ctxt);
- struct segment_register *sreg = hvmemul_get_seg_reg(seg, hvmemul_ctxt);
-
-+ if ( IS_ERR(sreg) )
-+ return -PTR_ERR(sreg);
-+
- memcpy(sreg, reg, sizeof(struct segment_register));
- __set_bit(seg, &hvmemul_ctxt->seg_reg_dirty);
-
-@@ -1934,10 +1943,17 @@ void hvm_emulate_writeback(
- }
- }
-
-+/*
-+ * Callers which pass a known in-range x86_segment can rely on the return
-+ * pointer being valid. Other callers must explicitly check for errors.
-+ */
- struct segment_register *hvmemul_get_seg_reg(
- enum x86_segment seg,
- struct hvm_emulate_ctxt *hvmemul_ctxt)
- {
-+ if ( seg < 0 || seg >= ARRAY_SIZE(hvmemul_ctxt->seg_reg) )
-+ return ERR_PTR(-X86EMUL_UNHANDLEABLE);
-+
- if ( !__test_and_set_bit(seg, &hvmemul_ctxt->seg_reg_accessed) )
- hvm_get_segment_register(current, seg, &hvmemul_ctxt->seg_reg[seg]);
- return &hvmemul_ctxt->seg_reg[seg];
---- a/xen/arch/x86/mm/shadow/common.c
-+++ b/xen/arch/x86/mm/shadow/common.c
-@@ -123,10 +123,19 @@ __initcall(shadow_audit_key_init);
- /* x86 emulator support for the shadow code
- */
-
--struct segment_register *hvm_get_seg_reg(
-+/*
-+ * Callers which pass a known in-range x86_segment can rely on the return
-+ * pointer being valid. Other callers must explicitly check for errors.
-+ */
-+static struct segment_register *hvm_get_seg_reg(
- enum x86_segment seg, struct sh_emulate_ctxt *sh_ctxt)
- {
-- struct segment_register *seg_reg = &sh_ctxt->seg_reg[seg];
-+ struct segment_register *seg_reg;
-+
-+ if ( seg < 0 || seg >= ARRAY_SIZE(sh_ctxt->seg_reg) )
-+ return ERR_PTR(-X86EMUL_UNHANDLEABLE);
-+
-+ seg_reg = &sh_ctxt->seg_reg[seg];
- if ( !__test_and_set_bit(seg, &sh_ctxt->valid_seg_regs) )
- hvm_get_segment_register(current, seg, seg_reg);
- return seg_reg;
-@@ -143,14 +152,9 @@ static int hvm_translate_linear_addr(
- struct segment_register *reg;
- int okay;
-
-- /*
-- * Can arrive here with non-user segments. However, no such cirucmstance
-- * is part of a legitimate pagetable update, so fail the emulation.
-- */
-- if ( !is_x86_user_segment(seg) )
-- return X86EMUL_UNHANDLEABLE;
--
- reg = hvm_get_seg_reg(seg, sh_ctxt);
-+ if ( IS_ERR(reg) )
-+ return -PTR_ERR(reg);
-
- okay = hvm_virtual_to_linear_addr(
- seg, reg, offset, bytes, access_type, sh_ctxt->ctxt.addr_size, paddr);
-@@ -253,9 +257,6 @@ hvm_emulate_write(enum x86_segment seg,
- unsigned long addr;
- int rc;
-
-- if ( !is_x86_user_segment(seg) )
-- return X86EMUL_UNHANDLEABLE;
--
- /* How many emulations could we save if we unshadowed on stack writes? */
- if ( seg == x86_seg_ss )
- perfc_incr(shadow_fault_emulate_stack);
-@@ -283,7 +284,7 @@ hvm_emulate_cmpxchg(enum x86_segment seg
- unsigned long addr, old, new;
- int rc;
-
-- if ( !is_x86_user_segment(seg) || bytes > sizeof(long) )
-+ if ( bytes > sizeof(long) )
- return X86EMUL_UNHANDLEABLE;
-
- rc = hvm_translate_linear_addr(
---- a/xen/arch/x86/mm/shadow/private.h
-+++ b/xen/arch/x86/mm/shadow/private.h
-@@ -740,8 +740,6 @@ const struct x86_emulate_ops *shadow_ini
- struct sh_emulate_ctxt *sh_ctxt, struct cpu_user_regs *regs);
- void shadow_continue_emulation(
- struct sh_emulate_ctxt *sh_ctxt, struct cpu_user_regs *regs);
--struct segment_register *hvm_get_seg_reg(
-- enum x86_segment seg, struct sh_emulate_ctxt *sh_ctxt);
-
- #if (SHADOW_OPTIMIZATIONS & SHOPT_VIRTUAL_TLB)
- /**************************************************************************/
---- a/xen/include/asm-x86/hvm/emulate.h
-+++ b/xen/include/asm-x86/hvm/emulate.h
-@@ -13,6 +13,7 @@
- #define __ASM_X86_HVM_EMULATE_H__
-
- #include <xen/config.h>
-+#include <xen/err.h>
- #include <asm/hvm/hvm.h>
- #include <asm/x86_emulate.h>
-
diff --git a/system/xen/xsa/xsa190.patch b/system/xen/xsa/xsa190.patch
deleted file mode 100644
index 3c242e6cc2..0000000000
--- a/system/xen/xsa/xsa190.patch
+++ /dev/null
@@ -1,173 +0,0 @@
-x86emul: honor guest CR0.TS and CR0.EM
-
-We must not emulate any instructions accessing respective registers
-when either of these flags is set in the guest view of the register, or
-else we may do so on data not belonging to the guest's current task.
-
-Being architecturally required behavior, the logic gets placed in the
-instruction emulator instead of hvmemul_get_fpu(). It should be noted,
-though, that hvmemul_get_fpu() being the only current handler for the
-get_fpu() callback, we don't have an active problem with CR4: Both
-CR4.OSFXSR and CR4.OSXSAVE get handled as necessary by that function.
-
-This is XSA-190.
-
-Signed-off-by: Jan Beulich <jbeulich@suse.com>
-Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
----
-v4: Only raise #NM on FWAIT when CR0.TS and CR0.MP are set.
-v3: Correct which exception to raise upon set CR0.EM.
-v2: Require the read_cr hook to be set, which then requires a change to
- the test code too.
----
-The change to xen/arch/x86/hvm/emulate.c isn't strictly needed for
-fixing the security issue, but the patch would be rather incomplete
-without.
-
---- a/tools/tests/x86_emulator/test_x86_emulator.c
-+++ b/tools/tests/x86_emulator/test_x86_emulator.c
-@@ -158,6 +158,22 @@ static inline uint64_t xgetbv(uint32_t x
- (ebx & (1U << 5)) != 0; \
- })
-
-+static int read_cr(
-+ unsigned int reg,
-+ unsigned long *val,
-+ struct x86_emulate_ctxt *ctxt)
-+{
-+ /* Fake just enough state for the emulator's _get_fpu() to be happy. */
-+ switch ( reg )
-+ {
-+ case 0:
-+ *val = 0x00000001; /* PE */
-+ return X86EMUL_OKAY;
-+ }
-+
-+ return X86EMUL_UNHANDLEABLE;
-+}
-+
- int get_fpu(
- void (*exception_callback)(void *, struct cpu_user_regs *),
- void *exception_callback_arg,
-@@ -189,6 +205,7 @@ static struct x86_emulate_ops emulops =
- .write = write,
- .cmpxchg = cmpxchg,
- .cpuid = cpuid,
-+ .read_cr = read_cr,
- .get_fpu = get_fpu,
- };
-
---- a/xen/arch/x86/hvm/emulate.c
-+++ b/xen/arch/x86/hvm/emulate.c
-@@ -1628,14 +1628,14 @@ static int hvmemul_get_fpu(
- switch ( type )
- {
- case X86EMUL_FPU_fpu:
-+ case X86EMUL_FPU_wait:
- break;
- case X86EMUL_FPU_mmx:
- if ( !cpu_has_mmx )
- return X86EMUL_UNHANDLEABLE;
- break;
- case X86EMUL_FPU_xmm:
-- if ( (curr->arch.hvm_vcpu.guest_cr[0] & X86_CR0_EM) ||
-- !(curr->arch.hvm_vcpu.guest_cr[4] & X86_CR4_OSFXSR) )
-+ if ( !(curr->arch.hvm_vcpu.guest_cr[4] & X86_CR4_OSFXSR) )
- return X86EMUL_UNHANDLEABLE;
- break;
- case X86EMUL_FPU_ymm:
---- a/xen/arch/x86/x86_emulate/x86_emulate.c
-+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
-@@ -420,6 +420,9 @@ typedef union {
-
- /* Control register flags. */
- #define CR0_PE (1<<0)
-+#define CR0_MP (1<<1)
-+#define CR0_EM (1<<2)
-+#define CR0_TS (1<<3)
- #define CR4_TSD (1<<2)
-
- /* EFLAGS bit definitions. */
-@@ -447,6 +450,7 @@ typedef union {
- #define EXC_OF 4
- #define EXC_BR 5
- #define EXC_UD 6
-+#define EXC_NM 7
- #define EXC_TS 10
- #define EXC_NP 11
- #define EXC_SS 12
-@@ -746,10 +750,45 @@ static void fpu_handle_exception(void *_
- regs->eip += fic->insn_bytes;
- }
-
-+static int _get_fpu(
-+ enum x86_emulate_fpu_type type,
-+ struct fpu_insn_ctxt *fic,
-+ struct x86_emulate_ctxt *ctxt,
-+ const struct x86_emulate_ops *ops)
-+{
-+ int rc;
-+
-+ fic->exn_raised = 0;
-+
-+ fail_if(!ops->get_fpu);
-+ rc = ops->get_fpu(fpu_handle_exception, fic, type, ctxt);
-+
-+ if ( rc == X86EMUL_OKAY )
-+ {
-+ unsigned long cr0;
-+
-+ fail_if(!ops->read_cr);
-+ rc = ops->read_cr(0, &cr0, ctxt);
-+ if ( rc != X86EMUL_OKAY )
-+ return rc;
-+ if ( cr0 & CR0_EM )
-+ {
-+ generate_exception_if(type == X86EMUL_FPU_fpu, EXC_NM, -1);
-+ generate_exception_if(type == X86EMUL_FPU_mmx, EXC_UD, -1);
-+ generate_exception_if(type == X86EMUL_FPU_xmm, EXC_UD, -1);
-+ }
-+ generate_exception_if((cr0 & CR0_TS) &&
-+ (type != X86EMUL_FPU_wait || (cr0 & CR0_MP)),
-+ EXC_NM, -1);
-+ }
-+
-+ done:
-+ return rc;
-+}
-+
- #define get_fpu(_type, _fic) \
--do{ (_fic)->exn_raised = 0; \
-- fail_if(ops->get_fpu == NULL); \
-- rc = ops->get_fpu(fpu_handle_exception, _fic, _type, ctxt); \
-+do { \
-+ rc = _get_fpu(_type, _fic, ctxt, ops); \
- if ( rc ) goto done; \
- } while (0)
- #define _put_fpu() \
-@@ -2879,8 +2918,14 @@ x86_emulate(
- }
-
- case 0x9b: /* wait/fwait */
-- emulate_fpu_insn("fwait");
-+ {
-+ struct fpu_insn_ctxt fic = { .insn_bytes = 1 };
-+
-+ get_fpu(X86EMUL_FPU_wait, &fic);
-+ asm volatile ( "fwait" ::: "memory" );
-+ put_fpu(&fic);
- break;
-+ }
-
- case 0x9c: /* pushf */
- src.val = _regs.eflags;
---- a/xen/arch/x86/x86_emulate/x86_emulate.h
-+++ b/xen/arch/x86/x86_emulate/x86_emulate.h
-@@ -115,6 +115,7 @@ struct __packed segment_register {
- /* FPU sub-types which may be requested via ->get_fpu(). */
- enum x86_emulate_fpu_type {
- X86EMUL_FPU_fpu, /* Standard FPU coprocessor instruction set */
-+ X86EMUL_FPU_wait, /* WAIT/FWAIT instruction */
- X86EMUL_FPU_mmx, /* MMX instruction set (%mm0-%mm7) */
- X86EMUL_FPU_xmm, /* SSE instruction set (%xmm0-%xmm7/15) */
- X86EMUL_FPU_ymm /* AVX/XOP instruction set (%ymm0-%ymm7/15) */