[gentoo-commits] proj/linux-patches:6.8 commit in: /
commit: 4c9513c83791150732d91fe7bccec0cdd207e493 Author: Mike Pagano gentoo org> AuthorDate: Sat May 25 15:17:57 2024 + Commit: Mike Pagano gentoo org> CommitDate: Sat May 25 15:17:57 2024 + URL:https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=4c9513c8 Linux patch 6.8.11 Signed-off-by: Mike Pagano gentoo.org> _README |4 + 1010_linux-6.8.11.patch | 1585 +++ 2 files changed, 1589 insertions(+) diff --git a/_README b/_README index a90ed274..7fa03211 100644 --- a/_README +++ b/_README @@ -83,6 +83,10 @@ Patch: 1009_linux-6.8.10.patch From: https://www.kernel.org Desc: Linux 6.8.10 +Patch: 1010_linux-6.8.11.patch +From: https://www.kernel.org +Desc: Linux 6.8.11 + Patch: 1510_fs-enable-link-security-restrictions-by-default.patch From: http://sources.debian.net/src/linux/3.16.7-ckt4-3/debian/patches/debian/fs-enable-link-security-restrictions-by-default.patch/ Desc: Enable link security restrictions by default. diff --git a/1010_linux-6.8.11.patch b/1010_linux-6.8.11.patch new file mode 100644 index ..e6516e5a --- /dev/null +++ b/1010_linux-6.8.11.patch @@ -0,0 +1,1585 @@ +diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block +index 1fe9a553c37b7..f0025d1c3d5ac 100644 +--- a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block +@@ -101,6 +101,16 @@ Description: + devices that support receiving integrity metadata. + + ++What: /sys/block//partscan ++Date: May 2024 ++Contact: Christoph Hellwig ++Description: ++ The /sys/block//partscan files reports if partition ++ scanning is enabled for the disk. It returns "1" if partition ++ scanning is enabled, or "0" if not. The value type is a 32-bit ++ unsigned integer, but only "0" and "1" are valid values. ++ ++ + What: /sys/block///alignment_offset + Date: April 2009 + Contact: Martin K. Petersen +diff --git a/Documentation/admin-guide/hw-vuln/core-scheduling.rst b/Documentation/admin-guide/hw-vuln/core-scheduling.rst +index cf1eeefdfc32f..a92e10ec402e7 100644 +--- a/Documentation/admin-guide/hw-vuln/core-scheduling.rst b/Documentation/admin-guide/hw-vuln/core-scheduling.rst +@@ -67,8 +67,8 @@ arg4: + will be performed for all tasks in the task group of ``pid``. + + arg5: +-userspace pointer to an unsigned long for storing the cookie returned by +-``PR_SCHED_CORE_GET`` command. Should be 0 for all other commands. ++userspace pointer to an unsigned long long for storing the cookie returned ++by ``PR_SCHED_CORE_GET`` command. Should be 0 for all other commands. + + In order for a process to push a cookie to, or pull a cookie from a process, it + is required to have the ptrace access mode: `PTRACE_MODE_READ_REALCREDS` to the +diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst +index 9d23144bf9850..87fdc258d1027 100644 +--- a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst +@@ -450,7 +450,7 @@ pages of all memory cgroups except ``/having_care_already``.:: + # # further filter out all cgroups except one at '/having_care_already' + echo memcg > 1/type + echo /having_care_already > 1/memcg_path +-echo N > 1/matching ++echo Y > 1/matching + + Note that ``anon`` and ``memcg`` filters are currently supported only when + ``paddr`` :ref:`implementation ` is being used. +diff --git a/Documentation/sphinx/kernel_include.py b/Documentation/sphinx/kernel_include.py +index abe7680883771..6387624423363 100755 +--- a/Documentation/sphinx/kernel_include.py b/Documentation/sphinx/kernel_include.py +@@ -97,7 +97,6 @@ class KernelInclude(Include): + # HINT: this is the only line I had to change / commented out: + #path = utils.relative_path(None, path) + +-path = nodes.reprunicode(path) + encoding = self.options.get( + 'encoding', self.state.document.settings.input_encoding) + e_handler=self.state.document.settings.input_encoding_error_handler +diff --git a/Makefile b/Makefile +index 01acaf667e789..ce6b03cce386d 100644 +--- a/Makefile b/Makefile +@@ -1,7 +1,7 @@ + # SPDX-License-Identifier: GPL-2.0 + VERSION = 6 + PATCHLEVEL = 8 +-SUBLEVEL = 10 ++SUBLEVEL = 11 + EXTRAVERSION = + NAME = Hurr durr I'ma ninja sloth + +diff --git a/block/genhd.c b/block/genhd.c +index d74fb5b4ae681..d0471f469f7d0 100644 +--- a/block/genhd.c b/block/genhd.c +@@ -345,9 +345,7 @@ int disk_scan_partitions(struct gendisk *disk, blk_mode_t mode) + struct bdev_handle *handle; + int ret = 0; + +- if (disk->flags & (GENHD_FL_NO_PART | GENHD_FL_HIDDEN)) +- return -EINVAL; +- if (test_bit(GD_SUPPRESS_PART_SCAN, >state)) ++ if
[gentoo-commits] proj/linux-patches:6.8 commit in: /
commit: 9dcf8bea816a2e0a4ee33c00c855bd27a5253e7f
Author: Mike Pagano gentoo org>
AuthorDate: Sun May 5 17:54:13 2024 +
Commit: Mike Pagano gentoo org>
CommitDate: Sun May 5 18:01:54 2024 +
URL:https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=9dcf8bea
Update to KSPP patch
Bug: https://bugs.gentoo.org/930733
Signed-off-by: Mike Pagano gentoo.org>
4567_distro-Gentoo-Kconfig.patch | 33 +
1 file changed, 21 insertions(+), 12 deletions(-)
diff --git a/4567_distro-Gentoo-Kconfig.patch b/4567_distro-Gentoo-Kconfig.patch
index 6134393f..87b8fa95 100644
--- a/4567_distro-Gentoo-Kconfig.patch
+++ b/4567_distro-Gentoo-Kconfig.patch
@@ -6,9 +6,9 @@
source "Documentation/Kconfig"
+
+source "distro/Kconfig"
/dev/null 2024-04-27 13:10:54.18827 -0400
-+++ b/distro/Kconfig 2024-04-27 17:56:56.723132353 -0400
-@@ -0,0 +1,295 @@
+--- /dev/null 2024-05-05 10:40:37.10388 -0400
b/distro/Kconfig 2024-05-05 13:37:37.699554927 -0400
+@@ -0,0 +1,310 @@
+menu "Gentoo Linux"
+
+config GENTOO_LINUX
@@ -178,7 +178,7 @@
+ to unmet dependencies. Search for
GENTOO_KERNEL_SELF_PROTECTION_COMMON and search for
+ GENTOO_KERNEL_SELF_PROTECTION_{X86_64, ARM64, X86_32, ARM} for
dependency information on your
+ specific architecture.
-+ Note 2: Please see the URL above for numeric settings, e.g.
CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
++ Note 2: Please see the URL above for numeric settings, e.g.
CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
+ for X86_64
+
+if GENTOO_KERNEL_SELF_PROTECTION
@@ -201,10 +201,13 @@
+ select DEBUG_SG
+ select HARDENED_USERCOPY if HAVE_HARDENED_USERCOPY_ALLOCATOR=y
+ select KFENCE if HAVE_ARCH_KFENCE && (!SLAB || SLUB)
++ select PAGE_TABLE_CHECK if ARCH_SUPPORTS_PAGE_TABLE_CHECK=y &&
EXCLUSIVE_SYSTEM_RAM=y
++ select PAGE_TABLE_CHECK_ENFORCED if PAGE_TABLE_CHECK=y
+ select RANDOMIZE_KSTACK_OFFSET_DEFAULT if
HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET && (INIT_STACK_NONE || !CC_IS_CLANG ||
CLANG_VERSION>=14)
+ select SECURITY_LANDLOCK
+ select SCHED_CORE if SCHED_SMT
+ select BUG_ON_DATA_CORRUPTION
++ select RANDOM_KMALLOC_CACHE if SLUB_TINY=n
+ select SCHED_STACK_END_CHECK
+ select SECCOMP if HAVE_ARCH_SECCOMP
+ select SECCOMP_FILTER if HAVE_ARCH_SECCOMP_FILTER
@@ -245,11 +248,13 @@
+ default n
+
+ select GCC_PLUGIN_STACKLEAK
++ select X86_KERNEL_IBT if CC_HAS_IBT=y && HAVE_OBJTOOL=y &&
(!LD_IS_LLD=n || LLD_VERSION>=14)
+ select LEGACY_VSYSCALL_NONE
+ select PAGE_TABLE_ISOLATION
+ select RANDOMIZE_BASE
+ select RANDOMIZE_MEMORY
+ select RELOCATABLE
++ select X86_USER_SHADOW_STACK if AS_WRUSS=Y
+ select VMAP_STACK
+
+
@@ -259,11 +264,21 @@
+ depends on ARM64
+ default n
+
-+ select RANDOMIZE_BASE
-+ select RELOCATABLE
++ select ARM64_BTI
++ select ARM64_E0PD
++ select ARM64_EPAN if ARM64_PAN=y
++ select ARM64_MTE if (ARM64_AS_HAS_MTE=y && ARM64_TAGGED_ADDR_ABI=y ) &&
( AS_HAS_ARMV8_5=y ) && ( AS_HAS_LSE_ATOMICS=y ) && ( ARM64_PAN=y )
++ select ARM64_PTR_AUTH
++ select ARM64_PTR_AUTH_KERNEL if ( ARM64_PTR_AUTH=y ) && ((
CC_HAS_SIGN_RETURN_ADDRESS=y || CC_HAS_BRANCH_PROT_PAC_RET=y ) &&
AS_HAS_ARMV8_3=y ) && ( LD_IS_LLD=y || LD_VERSION >= 23301 || ( CC_IS_GCC=y &&
GCC_VERSION < 90100 )) && (CC_IS_CLANG=n || AS_HAS_CFI_NEGATE_RA_STATE=y ) &&
((FUNCTION_GRAPH_TRACER=n || DYNAMIC_FTRACE_WITH_ARGS=y ))
++ select ARM64_BTI_KERNEL if ( ARM64_BTI=y ) && ( ARM64_PTR_AUTH_KERNEL=y
) && ( CC_HAS_BRANCH_PROT_PAC_RET_BTI=y ) && (CC_IS_GCC=n || GCC_VERSION >=
100100 ) && (CC_IS_GCC=n ) && ((FUNCTION_GRAPH_TRACE=n ||
DYNAMIC_FTRACE_WITH_ARG=y ))
+ select ARM64_SW_TTBR0_PAN
+ select CONFIG_UNMAP_KERNEL_AT_EL0
+ select GCC_PLUGIN_STACKLEAK
++ select KASAN_HW_TAGS if HAVE_ARCH_KASAN_HW_TAGS=y
++ select RANDOMIZE_BASE
++ select RELOCATABLE
++ select SHADOW_CALL_STACK if ARCH_SUPPORTS_SHADOW_CALL_STACK=y &&
(DYNAMIC_FTRACE_WITH_ARGS=y || DYNAMIC_FTRACE_WITH_REGS=y ||
FUNCTION_GRAPH_TRACER=n) && MMU=y
++ select UNWIND_PATCH_PAC_INTO_SCS if (CC_IS_CLANG=y && CLANG_VERSION >=
CONFIG_15 ) && ( ARM64_PTR_AUTH_KERNEL=y && CC_HAS_BRANCH_PROT_PAC_RET=y )
&& ( SHADOW_CALL_STACK=y )
+ select VMAP_STACK
+
+config GENTOO_KERNEL_SELF_PROTECTION_X86_32
@@ -304,12 +319,6 @@
+ See the settings that become available for more details and
fine-tuning.
+
+endmenu
-From bd3ff0b16792c18c0614c2b95e148943209f460a Mon Sep 17 00:00:00 2001
-From: Georgy Yakovlev
-Date: Tue, 8 Jun 2021 13:59:57 -0700
-Subject: [PATCH 2/2] set DEFAULT_MMAP_MIN_ADDR by default
-
mm/Kconfig | 2 ++
1 file changed, 2 insertions(+)
[gentoo-commits] proj/linux-patches:6.8 commit in: /
commit: 54d1b8f05b1a9bb154b528bda020c5c1b9143e51 Author: Mike Pagano gentoo org> AuthorDate: Sun May 5 18:00:38 2024 + Commit: Mike Pagano gentoo org> CommitDate: Sun May 5 18:00:38 2024 + URL:https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=54d1b8f0 Default alternate schedulars (ALT_SCHED=n) Signed-off-by: Mike Pagano gentoo.org> _README| 4 5021_BMQ-and-PDS-gentoo-defaults.patch | 13 + 2 files changed, 17 insertions(+) diff --git a/_README b/_README index f9626b92..bb655415 100644 --- a/_README +++ b/_README @@ -122,3 +122,7 @@ Desc: Kernel >= 5.15 patch enables gcc = v11.1+ optimizations for additional C Patch: 5020_BMQ-and-PDS-io-scheduler-v6.8-r6.patch From: https://gitlab.com/alfredchen/projectc Desc: BMQ(BitMap Queue) Scheduler. A new CPU scheduler developed from PDS(incld). Inspired by the scheduler in zircon. + +Patch: 5021_BMQ-and-PDS-gentoo-defaults.patch +From: https://gitweb.gentoo.org/proj/linux-patches.git/ +Desc: Set defaults for BMQ. default to n diff --git a/5021_BMQ-and-PDS-gentoo-defaults.patch b/5021_BMQ-and-PDS-gentoo-defaults.patch new file mode 100644 index ..6dc48eec --- /dev/null +++ b/5021_BMQ-and-PDS-gentoo-defaults.patch @@ -0,0 +1,13 @@ +--- a/init/Kconfig 2023-02-13 08:16:09.534315265 -0500 b/init/Kconfig 2023-02-13 08:17:24.130237204 -0500 +@@ -867,8 +867,9 @@ config UCLAMP_BUCKETS_COUNT + If in doubt, use the default value. + + menuconfig SCHED_ALT ++ depends on X86_64 + bool "Alternative CPU Schedulers" +- default y ++ default n + help + This feature enable alternative CPU scheduler" +
[gentoo-commits] proj/linux-patches:6.8 commit in: /
commit: 315003951b6f0bc2014da65ad339d8a961f388e3
Author: Mike Pagano gentoo org>
AuthorDate: Sun Apr 28 22:04:16 2024 +
Commit: Mike Pagano gentoo org>
CommitDate: Sun Apr 28 22:04:16 2024 +
URL:https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=31500395
BMQ Patch v6.8-r6
Signed-off-by: Mike Pagano gentoo.org>
_README| 2 +-
... => 5020_BMQ-and-PDS-io-scheduler-v6.8-r6.patch | 227 ++---
2 files changed, 106 insertions(+), 123 deletions(-)
diff --git a/_README b/_README
index 03fbc840..7f4b52bc 100644
--- a/_README
+++ b/_README
@@ -115,6 +115,6 @@ Patch: 5010_enable-cpu-optimizations-universal.patch
From: https://github.com/graysky2/kernel_compiler_patch
Desc: Kernel >= 5.15 patch enables gcc = v11.1+ optimizations for additional
CPUs.
-Patch: 5020_BMQ-and-PDS-io-scheduler-v6.8-r4.patch
+Patch: 5020_BMQ-and-PDS-io-scheduler-v6.8-r6.patch
From: https://gitlab.com/alfredchen/projectc
Desc: BMQ(BitMap Queue) Scheduler. A new CPU scheduler developed from
PDS(incld). Inspired by the scheduler in zircon.
diff --git a/5020_BMQ-and-PDS-io-scheduler-v6.8-r4.patch
b/5020_BMQ-and-PDS-io-scheduler-v6.8-r6.patch
similarity index 98%
rename from 5020_BMQ-and-PDS-io-scheduler-v6.8-r4.patch
rename to 5020_BMQ-and-PDS-io-scheduler-v6.8-r6.patch
index 6ade9048..6fd79852 100644
--- a/5020_BMQ-and-PDS-io-scheduler-v6.8-r4.patch
+++ b/5020_BMQ-and-PDS-io-scheduler-v6.8-r6.patch
@@ -268,10 +268,10 @@ index df3aca89d4f5..1df1f7635188 100644
static inline bool dl_time_before(u64 a, u64 b)
{
diff --git a/include/linux/sched/prio.h b/include/linux/sched/prio.h
-index ab83d85e1183..a9a1dfa99140 100644
+index ab83d85e1183..e66dfb553bc5 100644
--- a/include/linux/sched/prio.h
+++ b/include/linux/sched/prio.h
-@@ -18,6 +18,32 @@
+@@ -18,6 +18,28 @@
#define MAX_PRIO (MAX_RT_PRIO + NICE_WIDTH)
#define DEFAULT_PRIO (MAX_RT_PRIO + NICE_WIDTH / 2)
@@ -284,20 +284,16 @@ index ab83d85e1183..a9a1dfa99140 100644
+/* +/- priority levels from the base priority */
+#ifdef CONFIG_SCHED_BMQ
+#define MAX_PRIORITY_ADJ (12)
-+
-+#define MIN_NORMAL_PRIO (MAX_RT_PRIO)
-+#define MAX_PRIO (MIN_NORMAL_PRIO + NICE_WIDTH)
-+#define DEFAULT_PRIO (MIN_NORMAL_PRIO + NICE_WIDTH / 2)
+#endif
+
+#ifdef CONFIG_SCHED_PDS
+#define MAX_PRIORITY_ADJ (0)
++#endif
+
+#define MIN_NORMAL_PRIO (128)
+#define NORMAL_PRIO_NUM (64)
+#define MAX_PRIO (MIN_NORMAL_PRIO + NORMAL_PRIO_NUM)
-+#define DEFAULT_PRIO (MAX_PRIO - NICE_WIDTH / 2)
-+#endif
++#define DEFAULT_PRIO (MAX_PRIO - MAX_PRIORITY_ADJ - NICE_WIDTH / 2)
+
+#endif /* CONFIG_SCHED_ALT */
+
@@ -422,7 +418,7 @@ index bee58f7468c3..81f568107a6b 100644
select CGROUP_SCHED
select FAIR_GROUP_SCHED
diff --git a/init/init_task.c b/init/init_task.c
-index 7ecb458eb3da..40d2e86da6f9 100644
+index 7ecb458eb3da..e8f8be4f23ba 100644
--- a/init/init_task.c
+++ b/init/init_task.c
@@ -70,9 +70,15 @@ struct task_struct init_task __aligned(L1_CACHE_BYTES) = {
@@ -430,9 +426,9 @@ index 7ecb458eb3da..40d2e86da6f9 100644
.usage = REFCOUNT_INIT(2),
.flags = PF_KTHREAD,
+#ifdef CONFIG_SCHED_ALT
-+ .prio = DEFAULT_PRIO + MAX_PRIORITY_ADJ,
++ .prio = DEFAULT_PRIO,
+ .static_prio= DEFAULT_PRIO,
-+ .normal_prio= DEFAULT_PRIO + MAX_PRIORITY_ADJ,
++ .normal_prio= DEFAULT_PRIO,
+#else
.prio = MAX_PRIO - 20,
.static_prio= MAX_PRIO - 20,
@@ -663,10 +659,10 @@ index 976092b7bd45..31d587c16ec1 100644
obj-y += build_utility.o
diff --git a/kernel/sched/alt_core.c b/kernel/sched/alt_core.c
new file mode 100644
-index ..1044207ba0ad
+index ..c566583fe838
--- /dev/null
+++ b/kernel/sched/alt_core.c
-@@ -0,0 +1,8945 @@
+@@ -0,0 +1,8934 @@
+/*
+ * kernel/sched/alt_core.c
+ *
@@ -745,7 +741,7 @@ index ..1044207ba0ad
+#define sched_feat(x) (0)
+#endif /* CONFIG_SCHED_DEBUG */
+
-+#define ALT_SCHED_VERSION "v6.8-r4"
++#define ALT_SCHED_VERSION "v6.8-r6"
+
+/*
+ * Compile time debug macro
@@ -856,27 +852,21 @@ index ..1044207ba0ad
+ idle->on_rq = TASK_ON_RQ_QUEUED;
+}
+
-+static inline void
-+clear_recorded_preempt_mask(int pr, int low, int high, int cpu)
-+{
-+ if (low < pr && pr <= high)
++#define CLEAR_CACHED_PREEMPT_MASK(pr, low, high, cpu) \
++ if (low < pr && pr <= high) \
+ cpumask_clear_cpu(cpu, sched_preempt_mask + pr);
-+}
+
-+static inline void
-+set_recorded_preempt_mask(int pr, int low, int high, int cpu)
-+{
-+ if (low < pr && pr <= high)
++#define SET_CACHED_PREEMPT_MASK(pr, low, high, cpu) \
++ if (low < pr && pr <= high) \
+
[gentoo-commits] proj/linux-patches:6.8 commit in: /
commit: 910c52a332d5bc4800f6d510cc7427a5af1d7a28 Author: Mike Pagano gentoo org> AuthorDate: Sat Apr 27 22:01:28 2024 + Commit: Mike Pagano gentoo org> CommitDate: Sat Apr 27 22:03:10 2024 + URL:https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=910c52a3 Add UBSAN_BOUNDS and UBSAN_SHIFT and dependencies Bug: https://bugs.gentoo.org/930733 Signed-off-by: Mike Pagano gentoo.org> 4567_distro-Gentoo-Kconfig.patch | 14 +++--- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/4567_distro-Gentoo-Kconfig.patch b/4567_distro-Gentoo-Kconfig.patch index d215166c..6134393f 100644 --- a/4567_distro-Gentoo-Kconfig.patch +++ b/4567_distro-Gentoo-Kconfig.patch @@ -6,9 +6,9 @@ source "Documentation/Kconfig" + +source "distro/Kconfig" /dev/null 2022-08-25 07:13:06.694086407 -0400 -+++ b/distro/Kconfig 2022-08-25 13:21:55.150660724 -0400 -@@ -0,0 +1,291 @@ +--- /dev/null 2024-04-27 13:10:54.18827 -0400 b/distro/Kconfig 2024-04-27 17:56:56.723132353 -0400 +@@ -0,0 +1,295 @@ +menu "Gentoo Linux" + +config GENTOO_LINUX @@ -213,6 +213,10 @@ + select SLAB_FREELIST_HARDENED + select SHUFFLE_PAGE_ALLOCATOR + select SLUB_DEBUG ++ select UBSAN ++ select CC_HAS_UBSAN_BOUNDS_STRICT if !CC_HAS_UBSAN_ARRAY_BOUNDS ++ select UBSAN_BOUNDS ++ select UBSAN_SHIFT + select PAGE_POISONING + select PAGE_POISONING_NO_SANITY + select PAGE_POISONING_ZERO @@ -300,9 +304,6 @@ + See the settings that become available for more details and fine-tuning. + +endmenu --- -2.31.1 - From bd3ff0b16792c18c0614c2b95e148943209f460a Mon Sep 17 00:00:00 2001 From: Georgy Yakovlev Date: Tue, 8 Jun 2021 13:59:57 -0700 @@ -327,4 +328,3 @@ index 24c045b24..e13fc740c 100644 This is the portion of low virtual memory which should be protected -- 2.31.1 -```
[gentoo-commits] proj/linux-patches:6.8 commit in: /
commit: 3584cee31ed8f353980cc8b10137fc86a44d0669
Author: Mike Pagano gentoo org>
AuthorDate: Sun Apr 21 22:24:38 2024 +
Commit: Mike Pagano gentoo org>
CommitDate: Sun Apr 21 22:24:38 2024 +
URL:https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=3584cee3
Remove redundant patch
Removed:
1800_gcc-plugins-stackleak-Avoid-head-text-section.patch
Bug: https://bugs.gentoo.org/930389
Signed-off-by: Mike Pagano gentoo.org>
_README| 4 ---
...plugins-stackleak-Avoid-head-text-section.patch | 36 --
2 files changed, 40 deletions(-)
diff --git a/_README b/_README
index 1380bd5c..ba3f48c8 100644
--- a/_README
+++ b/_README
@@ -83,10 +83,6 @@ Patch: 1730_parisc-Disable-prctl.patch
From:
https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
Desc:prctl: Temporarily disable prctl(PR_SET_MDWE) on parisc
-Patch: 1800_gcc-plugins-stackleak-Avoid-head-text-section.patch
-From:https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
-Desc:gcc-plugins/stackleak: Avoid .head.text section
-
Patch: 2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch
From:
https://lore.kernel.org/linux-bluetooth/20190522070540.48895-1-mar...@holtmann.org/raw
Desc: Bluetooth: Check key sizes only when Secure Simple Pairing is enabled.
See bug #686758
diff --git a/1800_gcc-plugins-stackleak-Avoid-head-text-section.patch
b/1800_gcc-plugins-stackleak-Avoid-head-text-section.patch
deleted file mode 100644
index 28964f01..
--- a/1800_gcc-plugins-stackleak-Avoid-head-text-section.patch
+++ /dev/null
@@ -1,36 +0,0 @@
-From e7d24c0aa8e678f41457d1304e2091cac6fd1a2e Mon Sep 17 00:00:00 2001
-From: Ard Biesheuvel
-Date: Thu, 28 Mar 2024 07:42:57 +0100
-Subject: gcc-plugins/stackleak: Avoid .head.text section
-
-The .head.text section carries the startup code that runs with the MMU
-off or with a translation of memory that deviates from the ordinary one.
-So avoid instrumentation with the stackleak plugin, which already avoids
-.init.text and .noinstr.text entirely.
-
-Fixes: 48204aba801f1b51 ("x86/sme: Move early SME kernel encryption handling
into .head.text")
-Reported-by: kernel test robot
-Closes:
https://lore.kernel.org/oe-lkp/202403221630.2692c998-oliver.s...@intel.com
-Signed-off-by: Ard Biesheuvel
-Link: https://lore.kernel.org/r/20240328064256.2358634-2-ardb+...@google.com
-Signed-off-by: Kees Cook
- scripts/gcc-plugins/stackleak_plugin.c | 2 ++
- 1 file changed, 2 insertions(+)
-
-diff --git a/scripts/gcc-plugins/stackleak_plugin.c
b/scripts/gcc-plugins/stackleak_plugin.c
-index c5c2ce113c9232..d20c47d21ad835 100644
a/scripts/gcc-plugins/stackleak_plugin.c
-+++ b/scripts/gcc-plugins/stackleak_plugin.c
-@@ -467,6 +467,8 @@ static bool stackleak_gate(void)
- return false;
- if (STRING_EQUAL(section, ".entry.text"))
- return false;
-+ if (STRING_EQUAL(section, ".head.text"))
-+ return false;
- }
-
- return track_frame_size >= 0;
---
-cgit 1.2.3-korg
-
[gentoo-commits] proj/linux-patches:6.8 commit in: /
commit: d3215cc0cf839cfd06cd6f2e3f6b02da939e86ab Author: Alice Ferrazzi gentoo org> AuthorDate: Thu Apr 18 05:29:34 2024 + Commit: Alice Ferrazzi gentoo org> CommitDate: Thu Apr 18 05:29:34 2024 + URL:https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=d3215cc0 Linux patch 6.8.1: fix patch filename Signed-off-by: Alice Ferrazzi gentoo.org> 1001_linux-6.8.1.patch => 1000_linux-6.8.1.patch | 0 1 file changed, 0 insertions(+), 0 deletions(-) diff --git a/1001_linux-6.8.1.patch b/1000_linux-6.8.1.patch similarity index 100% rename from 1001_linux-6.8.1.patch rename to 1000_linux-6.8.1.patch
[gentoo-commits] proj/linux-patches:6.8 commit in: /
commit: e9ca04d0b0f60f591603f76063130b0f82920234
Author: Mike Pagano gentoo org>
AuthorDate: Thu Apr 11 14:46:47 2024 +
Commit: Mike Pagano gentoo org>
CommitDate: Thu Apr 11 14:46:47 2024 +
URL:https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=e9ca04d0
gcc-plugins/stackleak: Avoid .head.text section
Signed-off-by: Mike Pagano gentoo.org>
_README| 4 +++
...plugins-stackleak-Avoid-head-text-section.patch | 36 ++
2 files changed, 40 insertions(+)
diff --git a/_README b/_README
index d556a3be..a7081596 100644
--- a/_README
+++ b/_README
@@ -75,6 +75,10 @@ Patch: 1730_parisc-Disable-prctl.patch
From:
https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
Desc:prctl: Temporarily disable prctl(PR_SET_MDWE) on parisc
+Patch: 1800_gcc-plugins-stackleak-Avoid-head-text-section.patch
+From:https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
+Desc:gcc-plugins/stackleak: Avoid .head.text section
+
Patch: 2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch
From:
https://lore.kernel.org/linux-bluetooth/20190522070540.48895-1-mar...@holtmann.org/raw
Desc: Bluetooth: Check key sizes only when Secure Simple Pairing is enabled.
See bug #686758
diff --git a/1800_gcc-plugins-stackleak-Avoid-head-text-section.patch
b/1800_gcc-plugins-stackleak-Avoid-head-text-section.patch
new file mode 100644
index ..28964f01
--- /dev/null
+++ b/1800_gcc-plugins-stackleak-Avoid-head-text-section.patch
@@ -0,0 +1,36 @@
+From e7d24c0aa8e678f41457d1304e2091cac6fd1a2e Mon Sep 17 00:00:00 2001
+From: Ard Biesheuvel
+Date: Thu, 28 Mar 2024 07:42:57 +0100
+Subject: gcc-plugins/stackleak: Avoid .head.text section
+
+The .head.text section carries the startup code that runs with the MMU
+off or with a translation of memory that deviates from the ordinary one.
+So avoid instrumentation with the stackleak plugin, which already avoids
+.init.text and .noinstr.text entirely.
+
+Fixes: 48204aba801f1b51 ("x86/sme: Move early SME kernel encryption handling
into .head.text")
+Reported-by: kernel test robot
+Closes:
https://lore.kernel.org/oe-lkp/202403221630.2692c998-oliver.s...@intel.com
+Signed-off-by: Ard Biesheuvel
+Link: https://lore.kernel.org/r/20240328064256.2358634-2-ardb+...@google.com
+Signed-off-by: Kees Cook
+---
+ scripts/gcc-plugins/stackleak_plugin.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/scripts/gcc-plugins/stackleak_plugin.c
b/scripts/gcc-plugins/stackleak_plugin.c
+index c5c2ce113c9232..d20c47d21ad835 100644
+--- a/scripts/gcc-plugins/stackleak_plugin.c
b/scripts/gcc-plugins/stackleak_plugin.c
+@@ -467,6 +467,8 @@ static bool stackleak_gate(void)
+ return false;
+ if (STRING_EQUAL(section, ".entry.text"))
+ return false;
++ if (STRING_EQUAL(section, ".head.text"))
++ return false;
+ }
+
+ return track_frame_size >= 0;
+--
+cgit 1.2.3-korg
+
[gentoo-commits] proj/linux-patches:6.8 commit in: /
commit: f8b1656b3b322d7aa4d35ccd7d4739ebff2287ea
Author: Mike Pagano gentoo org>
AuthorDate: Thu Apr 4 19:21:54 2024 +
Commit: Mike Pagano gentoo org>
CommitDate: Thu Apr 4 19:21:54 2024 +
URL:https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=f8b1656b
BMQ Patch 6.8-r4 (USE=experimental)
Signed-off-by: Mike Pagano gentoo.org>
_README| 2 +-
...atch => 5020_BMQ-and-PDS-io-scheduler-v6.8-r4.patch | 18 +-
2 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/_README b/_README
index 36e97fef..a4ecb94d 100644
--- a/_README
+++ b/_README
@@ -99,6 +99,6 @@ Patch: 5010_enable-cpu-optimizations-universal.patch
From: https://github.com/graysky2/kernel_compiler_patch
Desc: Kernel >= 5.15 patch enables gcc = v11.1+ optimizations for additional
CPUs.
-Patch: 5020_BMQ-and-PDS-io-scheduler-v6.8-r2.patch
+Patch: 5020_BMQ-and-PDS-io-scheduler-v6.8-r4.patch
From: https://gitlab.com/alfredchen/projectc
Desc: BMQ(BitMap Queue) Scheduler. A new CPU scheduler developed from
PDS(incld). Inspired by the scheduler in zircon.
diff --git a/5020_BMQ-and-PDS-io-scheduler-v6.8-r2.patch
b/5020_BMQ-and-PDS-io-scheduler-v6.8-r4.patch
similarity index 99%
rename from 5020_BMQ-and-PDS-io-scheduler-v6.8-r2.patch
rename to 5020_BMQ-and-PDS-io-scheduler-v6.8-r4.patch
index f0f8c11e..6ade9048 100644
--- a/5020_BMQ-and-PDS-io-scheduler-v6.8-r2.patch
+++ b/5020_BMQ-and-PDS-io-scheduler-v6.8-r4.patch
@@ -663,10 +663,10 @@ index 976092b7bd45..31d587c16ec1 100644
obj-y += build_utility.o
diff --git a/kernel/sched/alt_core.c b/kernel/sched/alt_core.c
new file mode 100644
-index ..31fadbf46a7b
+index ..1044207ba0ad
--- /dev/null
+++ b/kernel/sched/alt_core.c
-@@ -0,0 +1,8944 @@
+@@ -0,0 +1,8945 @@
+/*
+ * kernel/sched/alt_core.c
+ *
@@ -745,7 +745,7 @@ index ..31fadbf46a7b
+#define sched_feat(x) (0)
+#endif /* CONFIG_SCHED_DEBUG */
+
-+#define ALT_SCHED_VERSION "v6.8-r2"
++#define ALT_SCHED_VERSION "v6.8-r4"
+
+/*
+ * Compile time debug macro
@@ -4920,8 +4920,8 @@ index ..31fadbf46a7b
+ stop_one_cpu_nowait(cpu, sg_balance_cpu_stop, p,
+ >active_balance_work);
+
-+ raw_spin_lock(_rq->lock);
+ preempt_enable();
++ raw_spin_lock(_rq->lock);
+ }
+
+ return res;
@@ -6043,7 +6043,8 @@ index ..31fadbf46a7b
+ /* Avoid rq from going away on us: */
+ preempt_disable();
+
-+ __balance_callbacks(rq);
++ if (task_on_rq_queued(p))
++ __balance_callbacks(rq);
+ __task_access_unlock(p, lock);
+
+ preempt_enable();
@@ -10632,10 +10633,10 @@ index ..ba1b7b805f1a
+#endif /* ALT_SCHED_H */
diff --git a/kernel/sched/bmq.h b/kernel/sched/bmq.h
new file mode 100644
-index ..f270fd1b9086
+index ..b7c9813f6fa7
--- /dev/null
+++ b/kernel/sched/bmq.h
-@@ -0,0 +1,102 @@
+@@ -0,0 +1,101 @@
+#define ALT_SCHED_NAME "BMQ"
+
+/*
@@ -10715,8 +10716,7 @@ index ..f270fd1b9086
+
+static inline void sched_task_renew(struct task_struct *p, const struct rq
*rq)
+{
-+ if (rq_switch_time(rq) > sysctl_sched_base_slice)
-+ deboost_task(p);
++ deboost_task(p);
+}
+
+static inline void sched_task_sanity_check(struct task_struct *p, struct rq
*rq) {}
[gentoo-commits] proj/linux-patches:6.8 commit in: /
commit: 0d78c2ebad9a1ed5fc2d9fddee412d3890647efc
Author: Mike Pagano gentoo org>
AuthorDate: Thu Apr 4 19:04:59 2024 +
Commit: Mike Pagano gentoo org>
CommitDate: Thu Apr 4 19:04:59 2024 +
URL:https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=0d78c2eb
Linux patch 6.8.4
Signed-off-by: Mike Pagano gentoo.org>
_README|4 +
1003_linux-6.8.4.patch | 1218
2 files changed, 1222 insertions(+)
diff --git a/_README b/_README
index b8286427..36e97fef 100644
--- a/_README
+++ b/_README
@@ -55,6 +55,10 @@ Patch: 1002_linux-6.8.3.patch
From: https://www.kernel.org
Desc: Linux 6.8.3
+Patch: 1003_linux-6.8.4.patch
+From: https://www.kernel.org
+Desc: Linux 6.8.4
+
Patch: 1510_fs-enable-link-security-restrictions-by-default.patch
From:
http://sources.debian.net/src/linux/3.16.7-ckt4-3/debian/patches/debian/fs-enable-link-security-restrictions-by-default.patch/
Desc: Enable link security restrictions by default.
diff --git a/1003_linux-6.8.4.patch b/1003_linux-6.8.4.patch
new file mode 100644
index ..82e75213
--- /dev/null
+++ b/1003_linux-6.8.4.patch
@@ -0,0 +1,1218 @@
+diff --git a/Makefile b/Makefile
+index a78379891d221..c436247d750c7 100644
+--- a/Makefile
b/Makefile
+@@ -1,7 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+ VERSION = 6
+ PATCHLEVEL = 8
+-SUBLEVEL = 3
++SUBLEVEL = 4
+ EXTRAVERSION =
+ NAME = Hurr durr I'ma ninja sloth
+
+diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
+index 515e7958c6c10..2cc0a9606175f 100644
+--- a/include/linux/workqueue.h
b/include/linux/workqueue.h
+@@ -391,13 +391,6 @@ enum {
+ WQ_MAX_ACTIVE = 512,/* I like 512, better ideas? */
+ WQ_UNBOUND_MAX_ACTIVE = WQ_MAX_ACTIVE,
+ WQ_DFL_ACTIVE = WQ_MAX_ACTIVE / 2,
+-
+- /*
+- * Per-node default cap on min_active. Unless explicitly set, min_active
+- * is set to min(max_active, WQ_DFL_MIN_ACTIVE). For more details, see
+- * workqueue_struct->min_active definition.
+- */
+- WQ_DFL_MIN_ACTIVE = 8,
+ };
+
+ /*
+@@ -440,33 +433,11 @@ extern struct workqueue_struct
*system_freezable_power_efficient_wq;
+ * alloc_workqueue - allocate a workqueue
+ * @fmt: printf format for the name of the workqueue
+ * @flags: WQ_* flags
+- * @max_active: max in-flight work items, 0 for default
++ * @max_active: max in-flight work items per CPU, 0 for default
+ * remaining args: args for @fmt
+ *
+- * For a per-cpu workqueue, @max_active limits the number of in-flight work
+- * items for each CPU. e.g. @max_active of 1 indicates that each CPU can be
+- * executing at most one work item for the workqueue.
+- *
+- * For unbound workqueues, @max_active limits the number of in-flight work
items
+- * for the whole system. e.g. @max_active of 16 indicates that that there can
be
+- * at most 16 work items executing for the workqueue in the whole system.
+- *
+- * As sharing the same active counter for an unbound workqueue across multiple
+- * NUMA nodes can be expensive, @max_active is distributed to each NUMA node
+- * according to the proportion of the number of online CPUs and enforced
+- * independently.
+- *
+- * Depending on online CPU distribution, a node may end up with per-node
+- * max_active which is significantly lower than @max_active, which can lead to
+- * deadlocks if the per-node concurrency limit is lower than the maximum
number
+- * of interdependent work items for the workqueue.
+- *
+- * To guarantee forward progress regardless of online CPU distribution, the
+- * concurrency limit on every node is guaranteed to be equal to or greater
than
+- * min_active which is set to min(@max_active, %WQ_DFL_MIN_ACTIVE). This means
+- * that the sum of per-node max_active's may be larger than @max_active.
+- *
+- * For detailed information on %WQ_* flags, please refer to
++ * Allocate a workqueue with the specified parameters. For detailed
++ * information on WQ_* flags, please refer to
+ * Documentation/core-api/workqueue.rst.
+ *
+ * RETURNS:
+diff --git a/kernel/workqueue.c b/kernel/workqueue.c
+index 781900b148b67..7b482a26d7419 100644
+--- a/kernel/workqueue.c
b/kernel/workqueue.c
+@@ -108,7 +108,7 @@ enum {
+ RESCUER_NICE_LEVEL = MIN_NICE,
+ HIGHPRI_NICE_LEVEL = MIN_NICE,
+
+- WQ_NAME_LEN = 32,
++ WQ_NAME_LEN = 24,
+ };
+
+ /*
+@@ -122,9 +122,6 @@ enum {
+ *
+ * L: pool->lock protected. Access with pool->lock held.
+ *
+- * LN: pool->lock and wq_node_nr_active->lock protected for writes. Either for
+- * reads.
+- *
+ * K: Only modified by worker while holding pool->lock. Can be safely read by
+ *self, while holding pool->lock or from IRQ context if %current is the
+ *kworker.
+@@ -146,9 +143,6 @@ enum {
+ *
+ * WR: wq->mutex protected for writes. RCU protected for reads.
+ *
+- *
[gentoo-commits] proj/linux-patches:6.8 commit in: /
commit: 8c47d4e09a8d4127e428ed961b17408e56d0f7ab Author: Mike Pagano gentoo org> AuthorDate: Fri Mar 15 21:58:25 2024 + Commit: Mike Pagano gentoo org> CommitDate: Fri Mar 15 21:58:25 2024 + URL:https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=8c47d4e0 Linux patch 6.8.1 Signed-off-by: Mike Pagano gentoo.org> _README| 4 + 1001_linux-6.8.1.patch | 523 + 2 files changed, 527 insertions(+) diff --git a/_README b/_README index e6b9bd5b..5fe89b7e 100644 --- a/_README +++ b/_README @@ -43,6 +43,10 @@ EXPERIMENTAL Individual Patch Descriptions: -- +Patch: 1000_linux-6.8.1.patch +From: https://www.kernel.org +Desc: Linux 6.8.1 + Patch: 1510_fs-enable-link-security-restrictions-by-default.patch From: http://sources.debian.net/src/linux/3.16.7-ckt4-3/debian/patches/debian/fs-enable-link-security-restrictions-by-default.patch/ Desc: Enable link security restrictions by default. diff --git a/1001_linux-6.8.1.patch b/1001_linux-6.8.1.patch new file mode 100644 index ..071efefa --- /dev/null +++ b/1001_linux-6.8.1.patch @@ -0,0 +1,523 @@ +diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu +index a1db6db475055..710d47be11e04 100644 +--- a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu +@@ -516,6 +516,7 @@ What: /sys/devices/system/cpu/vulnerabilities + /sys/devices/system/cpu/vulnerabilities/mds + /sys/devices/system/cpu/vulnerabilities/meltdown + /sys/devices/system/cpu/vulnerabilities/mmio_stale_data ++ /sys/devices/system/cpu/vulnerabilities/reg_file_data_sampling + /sys/devices/system/cpu/vulnerabilities/retbleed + /sys/devices/system/cpu/vulnerabilities/spec_store_bypass + /sys/devices/system/cpu/vulnerabilities/spectre_v1 +diff --git a/Documentation/admin-guide/hw-vuln/index.rst b/Documentation/admin-guide/hw-vuln/index.rst +index de99caabf65a3..ff0b440ef2dc9 100644 +--- a/Documentation/admin-guide/hw-vuln/index.rst b/Documentation/admin-guide/hw-vuln/index.rst +@@ -21,3 +21,4 @@ are configurable at compile, boot or run time. +cross-thread-rsb +srso +gather_data_sampling ++ reg-file-data-sampling +diff --git a/Documentation/admin-guide/hw-vuln/reg-file-data-sampling.rst b/Documentation/admin-guide/hw-vuln/reg-file-data-sampling.rst +new file mode 100644 +index 0..0585d02b9a6cb +--- /dev/null b/Documentation/admin-guide/hw-vuln/reg-file-data-sampling.rst +@@ -0,0 +1,104 @@ ++== ++Register File Data Sampling (RFDS) ++== ++ ++Register File Data Sampling (RFDS) is a microarchitectural vulnerability that ++only affects Intel Atom parts(also branded as E-cores). RFDS may allow ++a malicious actor to infer data values previously used in floating point ++registers, vector registers, or integer registers. RFDS does not provide the ++ability to choose which data is inferred. CVE-2023-28746 is assigned to RFDS. ++ ++Affected Processors ++=== ++Below is the list of affected Intel processors [#f1]_: ++ ++ === ++ Common name Family_Model ++ === ++ ATOM_GOLDMONT 06_5CH ++ ATOM_GOLDMONT_D 06_5FH ++ ATOM_GOLDMONT_PLUS 06_7AH ++ ATOM_TREMONT_D 06_86H ++ ATOM_TREMONT06_96H ++ ALDERLAKE 06_97H ++ ALDERLAKE_L 06_9AH ++ ATOM_TREMONT_L 06_9CH ++ RAPTORLAKE 06_B7H ++ RAPTORLAKE_P06_BAH ++ ATOM_GRACEMONT 06_BEH ++ RAPTORLAKE_S06_BFH ++ === ++ ++As an exception to this table, Intel Xeon E family parts ALDERLAKE(06_97H) and ++RAPTORLAKE(06_B7H) codenamed Catlow are not affected. They are reported as ++vulnerable in Linux because they share the same family/model with an affected ++part. Unlike their affected counterparts, they do not enumerate RFDS_CLEAR or ++CPUID.HYBRID. This information could be used to distinguish between the ++affected and unaffected parts, but it is deemed not worth adding complexity as ++the reporting is fixed automatically when these parts enumerate RFDS_NO. ++ ++Mitigation ++== ++Intel released a microcode update that enables software to clear sensitive ++information using the VERW instruction. Like MDS, RFDS deploys the same ++mitigation strategy to force the CPU to clear the affected buffers before an ++attacker can extract the secrets. This is achieved by using the otherwise ++unused and obsolete VERW instruction in combination with a microcode update. ++The microcode clears
[gentoo-commits] proj/linux-patches:6.8 commit in: /
commit: d28bc7b26a2b978abb89076172397bcd551bc4d5 Author: Mike Pagano gentoo org> AuthorDate: Mon Mar 11 20:48:49 2024 + Commit: Mike Pagano gentoo org> CommitDate: Mon Mar 11 20:48:49 2024 + URL:https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=d28bc7b2 CPU Optimization patch Signed-off-by: Mike Pagano gentoo.org> _README | 4 + 5010_enable-cpu-optimizations-universal.patch | 787 ++ 2 files changed, 791 insertions(+) diff --git a/_README b/_README index a4c7916d..887cea4c 100644 --- a/_README +++ b/_README @@ -78,3 +78,7 @@ Desc: Print firmware info (Reqs CONFIG_GENTOO_PRINT_FIRMWARE_INFO). Thanks to Patch: 4567_distro-Gentoo-Kconfig.patch From: Tom Wijsman Desc: Add Gentoo Linux support config settings and defaults. + +Patch: 5010_enable-cpu-optimizations-universal.patch +From: https://github.com/graysky2/kernel_compiler_patch +Desc: Kernel >= 5.15 patch enables gcc = v11.1+ optimizations for additional CPUs. diff --git a/5010_enable-cpu-optimizations-universal.patch b/5010_enable-cpu-optimizations-universal.patch new file mode 100644 index ..75c48bf1 --- /dev/null +++ b/5010_enable-cpu-optimizations-universal.patch @@ -0,0 +1,787 @@ +From 71dd30c3e2ab2852b0290ae1f34ce1c7f8655040 Mon Sep 17 00:00:00 2001 +From: graysky +Date: Wed, 21 Feb 2024 08:38:13 -0500 + +FEATURES +This patch adds additional CPU options to the Linux kernel accessible under: + Processor type and features ---> + Processor family ---> + +With the release of gcc 11.1 and clang 12.0, several generic 64-bit levels are +offered which are good for supported Intel or AMD CPUs: +• x86-64-v2 +• x86-64-v3 +• x86-64-v4 + +Users of glibc 2.33 and above can see which level is supported by running: + /lib/ld-linux-x86-64.so.2 --help | grep supported +Or + /lib64/ld-linux-x86-64.so.2 --help | grep supported + +Alternatively, compare the flags from /proc/cpuinfo to this list.[1] + +CPU-specific microarchitectures include: +• AMD Improved K8-family +• AMD K10-family +• AMD Family 10h (Barcelona) +• AMD Family 14h (Bobcat) +• AMD Family 16h (Jaguar) +• AMD Family 15h (Bulldozer) +• AMD Family 15h (Piledriver) +• AMD Family 15h (Steamroller) +• AMD Family 15h (Excavator) +• AMD Family 17h (Zen) +• AMD Family 17h (Zen 2) +• AMD Family 19h (Zen 3)† +• AMD Family 19h (Zen 4)§ +• Intel Silvermont low-power processors +• Intel Goldmont low-power processors (Apollo Lake and Denverton) +• Intel Goldmont Plus low-power processors (Gemini Lake) +• Intel 1st Gen Core i3/i5/i7 (Nehalem) +• Intel 1.5 Gen Core i3/i5/i7 (Westmere) +• Intel 2nd Gen Core i3/i5/i7 (Sandybridge) +• Intel 3rd Gen Core i3/i5/i7 (Ivybridge) +• Intel 4th Gen Core i3/i5/i7 (Haswell) +• Intel 5th Gen Core i3/i5/i7 (Broadwell) +• Intel 6th Gen Core i3/i5/i7 (Skylake) +• Intel 6th Gen Core i7/i9 (Skylake X) +• Intel 8th Gen Core i3/i5/i7 (Cannon Lake) +• Intel 10th Gen Core i7/i9 (Ice Lake) +• Intel Xeon (Cascade Lake) +• Intel Xeon (Cooper Lake)* +• Intel 3rd Gen 10nm++ i3/i5/i7/i9-family (Tiger Lake)* +• Intel 4th Gen 10nm++ Xeon (Sapphire Rapids)‡ +• Intel 11th Gen i3/i5/i7/i9-family (Rocket Lake)‡ +• Intel 12th Gen i3/i5/i7/i9-family (Alder Lake)‡ +• Intel 13th Gen i3/i5/i7/i9-family (Raptor Lake)§ +• Intel 14th Gen i3/i5/i7/i9-family (Meteor Lake)§ +• Intel 5th Gen 10nm++ Xeon (Emerald Rapids)§ + +Notes: If not otherwise noted, gcc >=9.1 is required for support. + *Requires gcc >=10.1 or clang >=10.0 + †Required gcc >=10.3 or clang >=12.0 + ‡Required gcc >=11.1 or clang >=12.0 + §Required gcc >=13.0 or clang >=15.0.5 + +It also offers to compile passing the 'native' option which, "selects the CPU +to generate code for at compilation time by determining the processor type of +the compiling machine. Using -march=native enables all instruction subsets +supported by the local machine and will produce code optimized for the local +machine under the constraints of the selected instruction set."[2] + +Users of Intel CPUs should select the 'Intel-Native' option and users of AMD +CPUs should select the 'AMD-Native' option. + +MINOR NOTES RELATING TO INTEL ATOM PROCESSORS +This patch also changes -march=atom to -march=bonnell in accordance with the +gcc v4.9 changes. Upstream is using the deprecated -match=atom flags when I +believe it should use the newer -march=bonnell flag for atom processors.[3] + +It is not recommended to compile on Atom-CPUs with the 'native' option.[4] The +recommendation is to use the 'atom' option instead. + +BENEFITS +Small but real speed increases are measurable using a make endpoint comparing +a generic kernel to one built with one of the respective microarchs. + +See the following experimental evidence supporting this statement: +https://github.com/graysky2/kernel_gcc_patch + +REQUIREMENTS +linux version 5.17+ +gcc version >=9.0 or clang version >=9.0 + +ACKNOWLEDGMENTS +This patch builds
