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update patches for 5.0.8

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Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This commit is contained in:
Thomas Lamprecht 2019-03-11 14:47:24 +01:00
parent 117c2cd60c
commit ff71f8b949
8 changed files with 19 additions and 547 deletions
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1
patches/kernel/0001-Make-mkcompile_h-accept-an-alternate-timestamp-strin.patch
View File

@ -15,6 +15,7 @@ Make mkcompile_h use $KBUILD_BUILD_VERSION_TIMESTAMP in preference to
$KBUILD_BUILD_TIMESTAMP.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
scripts/mkcompile_h | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)

1
patches/kernel/0002-bridge-keep-MAC-of-first-assigned-port.patch
View File

@ -13,6 +13,7 @@ connected ports (for no real reason). To avoid problems with ARP
we simply use the MAC of the first connected port.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
net/bridge/br_stp_if.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

28
patches/kernel/0003-pci-Enable-overrides-for-missing-ACS-capabilities-4..patch
View File

@ -48,16 +48,17 @@ capability. Please contact me to have your devices added and save
your customers the hassle of this boot option.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
.../admin-guide/kernel-parameters.txt | 9 ++
drivers/pci/quirks.c | 101 ++++++++++++++++++
2 files changed, 110 insertions(+)
drivers/pci/quirks.c | 102 ++++++++++++++++++
2 files changed, 111 insertions(+)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 2970a6bcf858..935a805afe60 100644
index 25f6c5ff7c09..259f49955856 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3125,6 +3125,15 @@
@@ -3223,6 +3223,15 @@
Also, it enforces the PCI Local Bus spec
rule that those bits should be 0 in system reset
events (useful for kexec/kdump cases).
@ -74,11 +75,11 @@ index 2970a6bcf858..935a805afe60 100644
Safety option to keep boot IRQs enabled. This
should never be necessary.
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 2956ebbd83dc..8dceb0838970 100644
index 4746d5c82ebd..0a67a53c0aca 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3705,6 +3705,106 @@ static int __init pci_apply_final_quirks(void)
@@ -194,6 +194,106 @@ static int __init pci_apply_final_quirks(void)
}
fs_initcall_sync(pci_apply_final_quirks);
+static bool acs_on_downstream;
@ -182,13 +183,14 @@ index 2956ebbd83dc..8dceb0838970 100644
+}
+
/*
* Following are device-specific reset methods which can be used to
* reset a single function if other methods (e.g. FLR, PM D0->D3) are
@@ -4558,6 +4658,7 @@ static const struct pci_dev_acs_enabled {
* Decoding should be disabled for a PCI device during BAR sizing to avoid
* conflict. But doing so may cause problems on host bridge and perhaps other
@@ -4547,6 +4647,8 @@ static const struct pci_dev_acs_enabled {
{ PCI_VENDOR_ID_CAVIUM, PCI_ANY_ID, pci_quirk_cavium_acs },
/* APM X-Gene */
{ PCI_VENDOR_ID_AMCC, 0xE004, pci_quirk_xgene_acs },
+ /* Enable overrides for missing ACS capabilities */
+ { PCI_ANY_ID, PCI_ANY_ID, pcie_acs_overrides },
{ 0 }
};
/* Ampere Computing */
{ PCI_VENDOR_ID_AMPERE, 0xE005, pci_quirk_xgene_acs },
{ PCI_VENDOR_ID_AMPERE, 0xE006, pci_quirk_xgene_acs },

3
patches/kernel/0004-kvm-disable-default-dynamic-halt-polling-growth.patch
View File

@ -7,12 +7,13 @@ Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
virt/kvm/kvm_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 238ddbc127e1..d7a24fd29144 100644
index 076bc38963bf..d727e9649b71 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -77,7 +77,7 @@ module_param(halt_poll_ns, uint, 0644);

58
patches/kernel/0005-ocfs2-make-metadata-estimation-accurate-and-clear.patch
View File

@ -1,58 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Changwei Ge <ge.changwei@h3c.com>
Date: Wed, 31 Jan 2018 16:15:02 -0800
Subject: [PATCH] ocfs2: make metadata estimation accurate and clear
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Current code assume that ::w_unwritten_list always has only one item on.
This is not right and hard to get understood. So improve how to count
unwritten item.
Link: http://lkml.kernel.org/r/1515479070-32653-1-git-send-email-ge.changwei@h3c.com
Signed-off-by: Changwei Ge <ge.changwei@h3c.com>
Reported-by: John Lightsey <john@nixnuts.net>
Tested-by: John Lightsey <john@nixnuts.net>
Cc: Mark Fasheh <mfasheh@versity.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 63de8bd9328bf2a778fc277503da163ae3defa3c)
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
fs/ocfs2/aops.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index d1516327b787..256986aca8df 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -797,6 +797,7 @@ struct ocfs2_write_ctxt {
struct ocfs2_cached_dealloc_ctxt w_dealloc;
struct list_head w_unwritten_list;
+ unsigned int w_unwritten_count;
};
void ocfs2_unlock_and_free_pages(struct page **pages, int num_pages)
@@ -1386,6 +1387,7 @@ static int ocfs2_unwritten_check(struct inode *inode,
desc->c_clear_unwritten = 0;
list_add_tail(&new->ue_ip_node, &oi->ip_unwritten_list);
list_add_tail(&new->ue_node, &wc->w_unwritten_list);
+ wc->w_unwritten_count++;
new = NULL;
unlock:
spin_unlock(&oi->ip_lock);
@@ -2256,7 +2258,7 @@ static int ocfs2_dio_wr_get_block(struct inode *inode, sector_t iblock,
ue->ue_phys = desc->c_phys;
list_splice_tail_init(&wc->w_unwritten_list, &dwc->dw_zero_list);
- dwc->dw_zero_count++;
+ dwc->dw_zero_count += wc->w_unwritten_count;
}
ret = ocfs2_write_end_nolock(inode->i_mapping, pos, len, len, wc);

367
patches/kernel/0006-ocfs2-try-to-reuse-extent-block-in-dealloc-without-m.patch
View File

@ -1,367 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Changwei Ge <ge.changwei@h3c.com>
Date: Wed, 31 Jan 2018 16:15:06 -0800
Subject: [PATCH] ocfs2: try to reuse extent block in dealloc without
meta_alloc
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
A crash issue was reported by John Lightsey with a call trace as follows:
ocfs2_split_extent+0x1ad3/0x1b40 [ocfs2]
ocfs2_change_extent_flag+0x33a/0x470 [ocfs2]
ocfs2_mark_extent_written+0x172/0x220 [ocfs2]
ocfs2_dio_end_io+0x62d/0x910 [ocfs2]
dio_complete+0x19a/0x1a0
do_blockdev_direct_IO+0x19dd/0x1eb0
__blockdev_direct_IO+0x43/0x50
ocfs2_direct_IO+0x8f/0xa0 [ocfs2]
generic_file_direct_write+0xb2/0x170
__generic_file_write_iter+0xc3/0x1b0
ocfs2_file_write_iter+0x4bb/0xca0 [ocfs2]
__vfs_write+0xae/0xf0
vfs_write+0xb8/0x1b0
SyS_write+0x4f/0xb0
system_call_fastpath+0x16/0x75
The BUG code told that extent tree wants to grow but no metadata was
reserved ahead of time. From my investigation into this issue, the root
cause it that although enough metadata is not reserved, there should be
enough for following use. Rightmost extent is merged into its left one
due to a certain times of marking extent written. Because during
marking extent written, we got many physically continuous extents. At
last, an empty extent showed up and the rightmost path is removed from
extent tree.
Add a new mechanism to reuse extent block cached in dealloc which were
just unlinked from extent tree to solve this crash issue.
Criteria is that during marking extents *written*, if extent rotation
and merging results in unlinking extent with growing extent tree later
without any metadata reserved ahead of time, try to reuse those extents
in dealloc in which deleted extents are cached.
Also, this patch addresses the issue John reported that ::dw_zero_count
is not calculated properly.
After applying this patch, the issue John reported was gone. Thanks for
the reproducer provided by John. And this patch has passed
ocfs2-test(29 cases) suite running by New H3C Group.
[ge.changwei@h3c.com: fix static checker warnning]
Link: http://lkml.kernel.org/r/63ADC13FD55D6546B7DECE290D39E373F29196AE@H3CMLB12-EX.srv.huawei-3com.com
[akpm@linux-foundation.org: brelse(NULL) is legal]
Link: http://lkml.kernel.org/r/1515479070-32653-2-git-send-email-ge.changwei@h3c.com
Signed-off-by: Changwei Ge <ge.changwei@h3c.com>
Reported-by: John Lightsey <john@nixnuts.net>
Tested-by: John Lightsey <john@nixnuts.net>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Mark Fasheh <mfasheh@versity.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 71a36944042b7d9dd71f6a5d1c5ea1c2353b5d42)
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
fs/ocfs2/alloc.c | 206 ++++++++++++++++++++++++++++++++++++++++++++---
fs/ocfs2/alloc.h | 1 +
fs/ocfs2/aops.c | 6 ++
3 files changed, 203 insertions(+), 10 deletions(-)
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index ab5105f9767e..2f2c76193f54 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -165,6 +165,13 @@ static int ocfs2_dinode_insert_check(struct ocfs2_extent_tree *et,
struct ocfs2_extent_rec *rec);
static int ocfs2_dinode_sanity_check(struct ocfs2_extent_tree *et);
static void ocfs2_dinode_fill_root_el(struct ocfs2_extent_tree *et);
+
+static int ocfs2_reuse_blk_from_dealloc(handle_t *handle,
+ struct ocfs2_extent_tree *et,
+ struct buffer_head **new_eb_bh,
+ int blk_wanted, int *blk_given);
+static int ocfs2_is_dealloc_empty(struct ocfs2_extent_tree *et);
+
static const struct ocfs2_extent_tree_operations ocfs2_dinode_et_ops = {
.eo_set_last_eb_blk = ocfs2_dinode_set_last_eb_blk,
.eo_get_last_eb_blk = ocfs2_dinode_get_last_eb_blk,
@@ -448,6 +455,7 @@ static void __ocfs2_init_extent_tree(struct ocfs2_extent_tree *et,
if (!obj)
obj = (void *)bh->b_data;
et->et_object = obj;
+ et->et_dealloc = NULL;
et->et_ops->eo_fill_root_el(et);
if (!et->et_ops->eo_fill_max_leaf_clusters)
@@ -1158,7 +1166,7 @@ static int ocfs2_add_branch(handle_t *handle,
struct buffer_head **last_eb_bh,
struct ocfs2_alloc_context *meta_ac)
{
- int status, new_blocks, i;
+ int status, new_blocks, i, block_given = 0;
u64 next_blkno, new_last_eb_blk;
struct buffer_head *bh;
struct buffer_head **new_eb_bhs = NULL;
@@ -1213,11 +1221,31 @@ static int ocfs2_add_branch(handle_t *handle,
goto bail;
}
- status = ocfs2_create_new_meta_bhs(handle, et, new_blocks,
- meta_ac, new_eb_bhs);
- if (status < 0) {
- mlog_errno(status);
- goto bail;
+ /* Firstyly, try to reuse dealloc since we have already estimated how
+ * many extent blocks we may use.
+ */
+ if (!ocfs2_is_dealloc_empty(et)) {
+ status = ocfs2_reuse_blk_from_dealloc(handle, et,
+ new_eb_bhs, new_blocks,
+ &block_given);
+ if (status < 0) {
+ mlog_errno(status);
+ goto bail;
+ }
+ }
+
+ BUG_ON(block_given > new_blocks);
+
+ if (block_given < new_blocks) {
+ BUG_ON(!meta_ac);
+ status = ocfs2_create_new_meta_bhs(handle, et,
+ new_blocks - block_given,
+ meta_ac,
+ &new_eb_bhs[block_given]);
+ if (status < 0) {
+ mlog_errno(status);
+ goto bail;
+ }
}
/* Note: new_eb_bhs[new_blocks - 1] is the guy which will be
@@ -1340,15 +1368,25 @@ static int ocfs2_shift_tree_depth(handle_t *handle,
struct ocfs2_alloc_context *meta_ac,
struct buffer_head **ret_new_eb_bh)
{
- int status, i;
+ int status, i, block_given = 0;
u32 new_clusters;
struct buffer_head *new_eb_bh = NULL;
struct ocfs2_extent_block *eb;
struct ocfs2_extent_list *root_el;
struct ocfs2_extent_list *eb_el;
- status = ocfs2_create_new_meta_bhs(handle, et, 1, meta_ac,
- &new_eb_bh);
+ if (!ocfs2_is_dealloc_empty(et)) {
+ status = ocfs2_reuse_blk_from_dealloc(handle, et,
+ &new_eb_bh, 1,
+ &block_given);
+ } else if (meta_ac) {
+ status = ocfs2_create_new_meta_bhs(handle, et, 1, meta_ac,
+ &new_eb_bh);
+
+ } else {
+ BUG();
+ }
+
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -1511,7 +1549,7 @@ static int ocfs2_grow_tree(handle_t *handle, struct ocfs2_extent_tree *et,
int depth = le16_to_cpu(el->l_tree_depth);
struct buffer_head *bh = NULL;
- BUG_ON(meta_ac == NULL);
+ BUG_ON(meta_ac == NULL && ocfs2_is_dealloc_empty(et));
shift = ocfs2_find_branch_target(et, &bh);
if (shift < 0) {
@@ -6585,6 +6623,154 @@ ocfs2_find_per_slot_free_list(int type,
return fl;
}
+static struct ocfs2_per_slot_free_list *
+ocfs2_find_preferred_free_list(int type,
+ int preferred_slot,
+ int *real_slot,
+ struct ocfs2_cached_dealloc_ctxt *ctxt)
+{
+ struct ocfs2_per_slot_free_list *fl = ctxt->c_first_suballocator;
+
+ while (fl) {
+ if (fl->f_inode_type == type && fl->f_slot == preferred_slot) {
+ *real_slot = fl->f_slot;
+ return fl;
+ }
+
+ fl = fl->f_next_suballocator;
+ }
+
+ /* If we can't find any free list matching preferred slot, just use
+ * the first one.
+ */
+ fl = ctxt->c_first_suballocator;
+ *real_slot = fl->f_slot;
+
+ return fl;
+}
+
+/* Return Value 1 indicates empty */
+static int ocfs2_is_dealloc_empty(struct ocfs2_extent_tree *et)
+{
+ struct ocfs2_per_slot_free_list *fl = NULL;
+
+ if (!et->et_dealloc)
+ return 1;
+
+ fl = et->et_dealloc->c_first_suballocator;
+ if (!fl)
+ return 1;
+
+ if (!fl->f_first)
+ return 1;
+
+ return 0;
+}
+
+/* If extent was deleted from tree due to extent rotation and merging, and
+ * no metadata is reserved ahead of time. Try to reuse some extents
+ * just deleted. This is only used to reuse extent blocks.
+ * It is supposed to find enough extent blocks in dealloc if our estimation
+ * on metadata is accurate.
+ */
+static int ocfs2_reuse_blk_from_dealloc(handle_t *handle,
+ struct ocfs2_extent_tree *et,
+ struct buffer_head **new_eb_bh,
+ int blk_wanted, int *blk_given)
+{
+ int i, status = 0, real_slot;
+ struct ocfs2_cached_dealloc_ctxt *dealloc;
+ struct ocfs2_per_slot_free_list *fl;
+ struct ocfs2_cached_block_free *bf;
+ struct ocfs2_extent_block *eb;
+ struct ocfs2_super *osb =
+ OCFS2_SB(ocfs2_metadata_cache_get_super(et->et_ci));
+
+ *blk_given = 0;
+
+ /* If extent tree doesn't have a dealloc, this is not faulty. Just
+ * tell upper caller dealloc can't provide any block and it should
+ * ask for alloc to claim more space.
+ */
+ dealloc = et->et_dealloc;
+ if (!dealloc)
+ goto bail;
+
+ for (i = 0; i < blk_wanted; i++) {
+ /* Prefer to use local slot */
+ fl = ocfs2_find_preferred_free_list(EXTENT_ALLOC_SYSTEM_INODE,
+ osb->slot_num, &real_slot,
+ dealloc);
+ /* If no more block can be reused, we should claim more
+ * from alloc. Just return here normally.
+ */
+ if (!fl) {
+ status = 0;
+ break;
+ }
+
+ bf = fl->f_first;
+ fl->f_first = bf->free_next;
+
+ new_eb_bh[i] = sb_getblk(osb->sb, bf->free_blk);
+ if (new_eb_bh[i] == NULL) {
+ status = -ENOMEM;
+ mlog_errno(status);
+ goto bail;
+ }
+
+ mlog(0, "Reusing block(%llu) from "
+ "dealloc(local slot:%d, real slot:%d)\n",
+ bf->free_blk, osb->slot_num, real_slot);
+
+ ocfs2_set_new_buffer_uptodate(et->et_ci, new_eb_bh[i]);
+
+ status = ocfs2_journal_access_eb(handle, et->et_ci,
+ new_eb_bh[i],
+ OCFS2_JOURNAL_ACCESS_CREATE);
+ if (status < 0) {
+ mlog_errno(status);
+ goto bail;
+ }
+
+ memset(new_eb_bh[i]->b_data, 0, osb->sb->s_blocksize);
+ eb = (struct ocfs2_extent_block *) new_eb_bh[i]->b_data;
+
+ /* We can't guarantee that buffer head is still cached, so
+ * polutlate the extent block again.
+ */
+ strcpy(eb->h_signature, OCFS2_EXTENT_BLOCK_SIGNATURE);
+ eb->h_blkno = cpu_to_le64(bf->free_blk);
+ eb->h_fs_generation = cpu_to_le32(osb->fs_generation);
+ eb->h_suballoc_slot = cpu_to_le16(real_slot);
+ eb->h_suballoc_loc = cpu_to_le64(bf->free_bg);
+ eb->h_suballoc_bit = cpu_to_le16(bf->free_bit);
+ eb->h_list.l_count =
+ cpu_to_le16(ocfs2_extent_recs_per_eb(osb->sb));
+
+ /* We'll also be dirtied by the caller, so
+ * this isn't absolutely necessary.
+ */
+ ocfs2_journal_dirty(handle, new_eb_bh[i]);
+
+ if (!fl->f_first) {
+ dealloc->c_first_suballocator = fl->f_next_suballocator;
+ kfree(fl);
+ }
+ kfree(bf);
+ }
+
+ *blk_given = i;
+
+bail:
+ if (unlikely(status < 0)) {
+ for (i = 0; i < blk_wanted; i++)
+ brelse(new_eb_bh[i]);
+ }
+
+ return status;
+}
+
int ocfs2_cache_block_dealloc(struct ocfs2_cached_dealloc_ctxt *ctxt,
int type, int slot, u64 suballoc,
u64 blkno, unsigned int bit)
diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h
index 27b75cf32cfa..250bcacdf9e9 100644
--- a/fs/ocfs2/alloc.h
+++ b/fs/ocfs2/alloc.h
@@ -61,6 +61,7 @@ struct ocfs2_extent_tree {
ocfs2_journal_access_func et_root_journal_access;
void *et_object;
unsigned int et_max_leaf_clusters;
+ struct ocfs2_cached_dealloc_ctxt *et_dealloc;
};
/*
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 256986aca8df..e8e205bf2e41 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -2332,6 +2332,12 @@ static int ocfs2_dio_end_io_write(struct inode *inode,
ocfs2_init_dinode_extent_tree(&et, INODE_CACHE(inode), di_bh);
+ /* Attach dealloc with extent tree in case that we may reuse extents
+ * which are already unlinked from current extent tree due to extent
+ * rotation and merging.
+ */
+ et.et_dealloc = &dealloc;
+
ret = ocfs2_lock_allocators(inode, &et, 0, dwc->dw_zero_count*2,
&data_ac, &meta_ac);
if (ret) {

53
patches/kernel/0007-Revert-UBUNTU-Packaging-retpoline-add-safe-usage-hin.patch
View File

@ -1,53 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabian=20Gr=C3=BCnbichler?= <f.gruenbichler@proxmox.com>
Date: Tue, 3 Apr 2018 14:59:26 +0200
Subject: [PATCH] Revert "UBUNTU: [Packaging] retpoline -- add safe usage hint
support"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This (partially) reverts commit 1e39020902132b3065bedf0a0c33031e89f9f57a.
this modifies the upstream kernel build to call an Ubuntu script which
we remove before building. it would also be required by any module
builds afterwards and is not shipped by Ubuntu's kernel packages either.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
scripts/Makefile.build | 10 +---------
1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 1b07341eda2c..419fe6fdad17 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -295,27 +295,19 @@ objtool_dep = $(objtool_obj) \
$(wildcard include/config/orc/unwinder.h \
include/config/stack/validation.h)
-ifdef CONFIG_RETPOLINE
-cmd_ubuntu_retpoline = $(CONFIG_SHELL) $(srctree)/scripts/ubuntu-retpoline-extract-one $(@) $(<) "$(filter -m16 %code16gcc.h,$(a_flags))";
-else
-cmd_ubuntu_retpoline =
-endif
-
define rule_cc_o_c
$(call echo-cmd,checksrc) $(cmd_checksrc) \
$(call cmd_and_fixdep,cc_o_c) \
$(cmd_checkdoc) \
$(call echo-cmd,objtool) $(cmd_objtool) \
$(cmd_modversions_c) \
- $(call echo-cmd,ubuntu-retpoline) $(cmd_ubuntu_retpoline) \
$(call echo-cmd,record_mcount) $(cmd_record_mcount)
endef
define rule_as_o_S
$(call cmd_and_fixdep,as_o_S) \
$(call echo-cmd,objtool) $(cmd_objtool) \
- $(cmd_modversions_S) \
- $(call echo-cmd,ubuntu-retpoline) $(cmd_ubuntu_retpoline)
+ $(cmd_modversions_S)
endef
# List module undefined symbols (or empty line if not enabled)

55
patches/kernel/0008-kvm-x86-Add-AMD-s-EX_CFG-to-the-list-of-ignored-MSRs.patch
View File

@ -1,55 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Eduardo Habkost <ehabkost@redhat.com>
Date: Mon, 17 Dec 2018 22:34:18 -0200
Subject: [PATCH] kvm: x86: Add AMD's EX_CFG to the list of ignored MSRs
Some guests OSes (including Windows 10) write to MSR 0xc001102c
on some cases (possibly while trying to apply a CPU errata).
Make KVM ignore reads and writes to that MSR, so the guest won't
crash.
The MSR is documented as "Execution Unit Configuration (EX_CFG)",
at AMD's "BIOS and Kernel Developer's Guide (BKDG) for AMD Family
15h Models 00h-0Fh Processors".
Cc: stable@vger.kernel.org
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
arch/x86/include/asm/msr-index.h | 1 +
arch/x86/kvm/x86.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 7ca92f9b5eae..4eb78a908544 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -382,6 +382,7 @@
#define MSR_F15H_NB_PERF_CTR 0xc0010241
#define MSR_F15H_PTSC 0xc0010280
#define MSR_F15H_IC_CFG 0xc0011021
+#define MSR_F15H_EX_CFG 0xc001102c
/* Fam 10h MSRs */
#define MSR_FAM10H_MMIO_CONF_BASE 0xc0010058
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ac17f53812af..1154795459de 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2240,6 +2240,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
case MSR_AMD64_PATCH_LOADER:
case MSR_AMD64_BU_CFG2:
case MSR_AMD64_DC_CFG:
+ case MSR_F15H_EX_CFG:
break;
case MSR_IA32_UCODE_REV:
@@ -2528,6 +2529,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
case MSR_AMD64_BU_CFG2:
case MSR_IA32_PERF_CTL:
case MSR_AMD64_DC_CFG:
+ case MSR_F15H_EX_CFG:
msr_info->data = 0;
break;
case MSR_K7_EVNTSEL0 ... MSR_K7_EVNTSEL3: