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6.13

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This commit is contained in:
xiota
2025-01-27 05:55:16 +00:00
parent de08d14fee
commit 716938a797
4 changed files with 122 additions and 107 deletions
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25
.SRCINFO
View File

@@ -1,6 +1,6 @@
pkgbase = linux-vfio
pkgdesc = Linux
pkgver = 6.12.10
pkgver = 6.13
pkgrel = 1
url = https://www.kernel.org
arch = x86_64
@@ -21,21 +21,21 @@ pkgbase = linux-vfio
makedepends = texlive-latexextra
options = !debug
options = !strip
source = https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.12.10.tar.xz
source = https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.12.10.tar.sign
source = config-6.12.10::https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/raw/main/config
source = 1001-6.8.0-add-acs-overrides.patch
source = 1002-6.8.0-i915-vga-arbiter.patch
source = https://github.com/archlinux/linux/releases/download/v6.12.10-arch1/linux-v6.12.10-arch1.patch.zst
source = https://github.com/archlinux/linux/releases/download/v6.12.10-arch1/linux-v6.12.10-arch1.patch.zst.sig
source = https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.13.tar.xz
source = https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.13.tar.sign
source = config-6.13::https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/raw/main/config
source = 1001-6.13.0-add-acs-overrides.patch
source = 1002-6.13.0-i915-vga-arbiter.patch
source = https://github.com/archlinux/linux/releases/download/v6.13-arch1/linux-v6.13-arch1.patch.zst
source = https://github.com/archlinux/linux/releases/download/v6.13-arch1/linux-v6.13-arch1.patch.zst.sig
validpgpkeys = ABAF11C65A2970B130ABE3C479BE3E4300411886
validpgpkeys = 647F28654894E3BD457199BE38DBBDC86092693E
validpgpkeys = 83BC8889351B5DEBBB68416EB8AC08600F108CDF
sha256sums = 4a516e5ed748537a73cb42ec47fbbeb6df8b1298e8892c29c0e91de79095b297
sha256sums = e79dcc6eb86695c6babfb07c2861912b635d5075c6cd1cd0567d1ea155f80d6e
sha256sums = SKIP
sha256sums = SKIP
sha256sums = b35c26d5dc31fb9cfac68292de7b1ee8ca93b4647e4958efc77e2c77f586f1f2
sha256sums = 966c15da4044a9a3b5f9d362c2cf08303f1265ad4489c9835c95973b71255d07
sha256sums = 569742a1c7ce7996ee4c650c444ed13d650fff7b84f23a16e6358693e58aee9f
sha256sums = 40bb65492702d3f92dd67f8f1e424a1c686f1ff2e2d7d2566451693a7adc09f3
sha256sums = SKIP
sha256sums = SKIP
@@ -44,8 +44,9 @@ pkgname = linux-vfio
depends = coreutils
depends = initramfs
depends = kmod
optdepends = wireless-regdb: to set the correct wireless channels of your country
optdepends = linux-firmware: firmware images needed for some devices
optdepends = scx-scheds: to use sched-ext schedulers
optdepends = wireless-regdb: to set the correct wireless channels of your country
provides = KSMBD-MODULE
provides = VIRTUALBOX-GUEST-MODULES
provides = WIREGUARD-MODULE

16
1001-6.8.0-add-acs-overrides.patch → 1001-6.13.0-add-acs-overrides.patch
View File

@@ -1,7 +1,7 @@
From 6d05bc1343b9ecce154f551ee09c15e0e9db70bb Mon Sep 17 00:00:00 2001
From bca709f513eff78dbd976ff8dc7e64df5107ac37 Mon Sep 17 00:00:00 2001
From: xiota <>
Date: Wed, 13 Mar 2024 02:36:37 +0000
Subject: [PATCH 1/2] add-acs-overrides
Subject: [PATCH] add-acs-overrides
---
.../admin-guide/kernel-parameters.txt | 8 ++
@@ -9,10 +9,10 @@ Subject: [PATCH 1/2] add-acs-overrides
2 files changed, 110 insertions(+)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 31b3a2568..b8ab436d1 100644
index 3872bc6..b8cb3e3 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4370,6 +4370,14 @@
@@ -4481,6 +4481,14 @@
nomsi [MSI] If the PCI_MSI kernel config parameter is
enabled, this kernel boot option can be used to
disable the use of MSI interrupts system-wide.
@@ -28,10 +28,10 @@ index 31b3a2568..b8ab436d1 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 d797df6e5..9b41773bf 100644
index 76f4df7..49150a2 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4996,6 +4996,106 @@ static int pci_quirk_wangxun_nic_acs(struct pci_dev *dev, u16 acs_flags)
@@ -5017,6 +5017,106 @@ static int pci_quirk_wangxun_nic_acs(struct pci_dev *dev, u16 acs_flags)
return false;
}
@@ -138,7 +138,7 @@ index d797df6e5..9b41773bf 100644
static const struct pci_dev_acs_enabled {
u16 vendor;
u16 device;
@@ -5143,6 +5243,8 @@ static const struct pci_dev_acs_enabled {
@@ -5170,6 +5270,8 @@ static const struct pci_dev_acs_enabled {
{ PCI_VENDOR_ID_ZHAOXIN, PCI_ANY_ID, pci_quirk_zhaoxin_pcie_ports_acs },
/* Wangxun nics */
{ PCI_VENDOR_ID_WANGXUN, PCI_ANY_ID, pci_quirk_wangxun_nic_acs },
@@ -148,5 +148,5 @@ index d797df6e5..9b41773bf 100644
};
--
2.44.0
2.48.1

138
1002-6.8.0-i915-vga-arbiter.patch → 1002-6.13.0-i915-vga-arbiter.patch
View File

@@ -1,22 +1,23 @@
From 6f123acf4fecf575970c8b3ab0994ea0563fd41e Mon Sep 17 00:00:00 2001
From 32d421bf11726bac8f1bbf105095db02023117d5 Mon Sep 17 00:00:00 2001
From: xiota <>
Date: Wed, 13 Mar 2024 02:48:53 +0000
Subject: [PATCH 2/2] i915-vga-arbiter
Date: Mon, 27 Jan 2025 05:45:27 +0000
Subject: [PATCH] i915-vga-arbiter
---
.../drm/i915/display/intel_display_driver.c | 17 ++++++++--
.../drm/i915/display/intel_display_driver.c | 20 +++++++++--
.../drm/i915/display/intel_display_driver.h | 1 +
.../drm/i915/display/intel_display_params.c | 3 ++
.../drm/i915/display/intel_display_params.h | 1 +
drivers/gpu/drm/i915/display/intel_vga.c | 32 +++++++++++++++++++
drivers/gpu/drm/i915/display/intel_vga.c | 33 +++++++++++++++++++
drivers/gpu/drm/i915/display/intel_vga.h | 4 +++
6 files changed, 55 insertions(+), 3 deletions(-)
.../gpu/drm/xe/compat-i915-headers/i915_drv.h | 7 ++++
7 files changed, 66 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.c b/drivers/gpu/drm/i915/display/intel_display_driver.c
index 9df9097a0..2c467daf8 100644
index 56b78cf6b..b787f82dc 100644
--- a/drivers/gpu/drm/i915/display/intel_display_driver.c
+++ b/drivers/gpu/drm/i915/display/intel_display_driver.c
@@ -29,6 +29,7 @@
@@ -30,6 +30,7 @@
#include "intel_display_debugfs.h"
#include "intel_display_driver.h"
#include "intel_display_irq.h"
@@ -24,81 +25,87 @@ index 9df9097a0..2c467daf8 100644
#include "intel_display_power.h"
#include "intel_display_types.h"
#include "intel_display_wa.h"
@@ -215,9 +216,11 @@ int intel_display_driver_probe_noirq(struct drm_i915_private *i915)
@@ -221,9 +222,11 @@ int intel_display_driver_probe_noirq(struct drm_i915_private *i915)
intel_bios_init(i915);
intel_bios_init(display);
- ret = intel_vga_register(i915);
- ret = intel_vga_register(display);
- if (ret)
- goto cleanup_bios;
+ if (!i915->display.params.enable_hd_vgaarb || !HAS_PCH_SPLIT(i915)) {
+ ret = intel_vga_register(i915);
+ if (!display->params.enable_hd_vgaarb || !HAS_PCH_SPLIT(i915)) {
+ ret = intel_vga_register(display);
+ if (ret)
+ goto cleanup_bios;
+ }
/* FIXME: completely on the wrong abstraction layer */
ret = intel_power_domains_init(i915);
@@ -372,6 +375,12 @@ int intel_display_driver_probe(struct drm_i915_private *i915)
if (ret)
return ret;
@@ -520,6 +523,12 @@ int intel_display_driver_probe(struct drm_i915_private *i915)
intel_overlay_setup(i915);
+ /*
+ * Must do this after fbcon init so that
+ * vgacon_save_screen() works during the handover.
+ */
+ intel_vga_disable_mem(i915);
+ intel_vga_disable_mem(display);
+
/* Only enable hotplug handling once the fbdev is fully set up. */
intel_hpd_init(i915);
intel_hpd_poll_disable(i915);
@@ -423,6 +432,7 @@ void intel_display_driver_remove(struct drm_i915_private *i915)
@@ -566,9 +575,13 @@ void intel_display_driver_register(struct drm_i915_private *i915)
/* part #1: call before irq uninstall */
void intel_display_driver_remove(struct drm_i915_private *i915)
{
+ struct intel_display *display = &i915->display;
+
if (!HAS_DISPLAY(i915))
return;
+ intel_vga_enable_mem(i915);
+ intel_vga_enable_mem(display);
+
flush_workqueue(i915->display.wq.flip);
flush_workqueue(i915->display.wq.modeset);
@@ -452,6 +462,7 @@ void intel_display_driver_remove_noirq(struct drm_i915_private *i915)
@@ -599,6 +612,7 @@ void intel_display_driver_remove_noirq(struct drm_i915_private *i915)
intel_unregister_dsm_handler();
/* flush any delayed tasks or pending work */
+ intel_vga_enable_mem(i915);
+ intel_vga_enable_mem(display);
flush_workqueue(i915->unordered_wq);
intel_hdcp_component_fini(i915);
intel_hdcp_component_fini(display);
diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.h b/drivers/gpu/drm/i915/display/intel_display_driver.h
index c276a58ee..54b752a93 100644
index 42cc4af6d..3b233969b 100644
--- a/drivers/gpu/drm/i915/display/intel_display_driver.h
+++ b/drivers/gpu/drm/i915/display/intel_display_driver.h
@@ -13,6 +13,7 @@ struct drm_i915_private;
struct drm_modeset_acquire_ctx;
struct pci_dev;
+extern void intel_vga_disable_mem(struct drm_i915_private *dev_priv);
+extern void intel_vga_disable_mem(struct intel_display *display);
bool intel_display_driver_probe_defer(struct pci_dev *pdev);
void intel_display_driver_init_hw(struct drm_i915_private *i915);
void intel_display_driver_early_probe(struct drm_i915_private *i915);
diff --git a/drivers/gpu/drm/i915/display/intel_display_params.c b/drivers/gpu/drm/i915/display/intel_display_params.c
index 11e03cfb7..8895be132 100644
index 024de8abc..efc57e90c 100644
--- a/drivers/gpu/drm/i915/display/intel_display_params.c
+++ b/drivers/gpu/drm/i915/display/intel_display_params.c
@@ -87,6 +87,9 @@ intel_display_param_named_unsafe(force_reset_modeset_test, bool, 0400,
@@ -94,6 +94,9 @@ intel_display_param_named_unsafe(force_reset_modeset_test, bool, 0400,
intel_display_param_named(disable_display, bool, 0400,
"Disable display (default: false)");
+intel_display_param_named(enable_hd_vgaarb, bool, 0444,
+intel_display_param_named(enable_hd_vgaarb, bool, 0400,
+ "Enable support for VGA arbitration on Intel HD IGD. (default: false)");
+
intel_display_param_named(verbose_state_checks, bool, 0400,
"Enable verbose logs (ie. WARN_ON()) in case of unexpected hw state conditions.");
diff --git a/drivers/gpu/drm/i915/display/intel_display_params.h b/drivers/gpu/drm/i915/display/intel_display_params.h
index 6206cc51d..bfbc49c53 100644
index dcb6face9..1900b9ff9 100644
--- a/drivers/gpu/drm/i915/display/intel_display_params.h
+++ b/drivers/gpu/drm/i915/display/intel_display_params.h
@@ -39,6 +39,7 @@ struct drm_i915_private;
@@ -40,6 +40,7 @@ struct drm_printer;
param(bool, load_detect_test, false, 0600) \
param(bool, force_reset_modeset_test, false, 0600) \
param(bool, disable_display, false, 0400) \
@@ -107,27 +114,27 @@ index 6206cc51d..bfbc49c53 100644
param(bool, nuclear_pageflip, false, 0400) \
param(bool, enable_dp_mst, true, 0600) \
diff --git a/drivers/gpu/drm/i915/display/intel_vga.c b/drivers/gpu/drm/i915/display/intel_vga.c
index 4b98833bf..25a729c95 100644
index fd18dd07a..a587c5bc2 100644
--- a/drivers/gpu/drm/i915/display/intel_vga.c
+++ b/drivers/gpu/drm/i915/display/intel_vga.c
@@ -11,6 +11,7 @@
@@ -12,6 +12,7 @@
#include "i915_drv.h"
#include "i915_reg.h"
#include "intel_de.h"
+#include "intel_display_params.h"
#include "intel_vga.h"
static i915_reg_t intel_vga_cntrl_reg(struct drm_i915_private *i915)
@@ -45,6 +46,36 @@ void intel_vga_disable(struct drm_i915_private *dev_priv)
intel_de_posting_read(dev_priv, vga_reg);
static i915_reg_t intel_vga_cntrl_reg(struct intel_display *display)
@@ -46,6 +47,37 @@ void intel_vga_disable(struct intel_display *display)
intel_de_posting_read(display, vga_reg);
}
+void intel_vga_enable_mem(struct drm_i915_private *dev_priv)
+void intel_vga_enable_mem(struct intel_display *display)
+{
+ struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
+
+ struct pci_dev *pdev = to_pci_dev(display->drm->dev);
+ struct drm_i915_private *i915 = pdev_to_i915(pdev);
+ /* Enable VGA memory on Intel HD */
+ if (dev_priv->display.params.enable_hd_vgaarb && HAS_PCH_SPLIT(dev_priv)) {
+ if (display->params.enable_hd_vgaarb && HAS_PCH_SPLIT(i915)) {
+ vga_get_uninterruptible(pdev, VGA_RSRC_LEGACY_IO);
+ outb(inb(VGA_MIS_R) | (1 << 1), VGA_MIS_W);
+ vga_set_legacy_decoding(pdev, VGA_RSRC_LEGACY_IO |
@@ -138,11 +145,12 @@ index 4b98833bf..25a729c95 100644
+ }
+}
+
+void intel_vga_disable_mem(struct drm_i915_private *dev_priv)
+void intel_vga_disable_mem(struct intel_display *display)
+{
+ struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
+ struct pci_dev *pdev = to_pci_dev(display->drm->dev);
+ struct drm_i915_private *i915 = pdev_to_i915(pdev);
+ /* Disable VGA memory on Intel HD */
+ if (dev_priv->display.params.enable_hd_vgaarb && HAS_PCH_SPLIT(dev_priv)) {
+ if (display->params.enable_hd_vgaarb && HAS_PCH_SPLIT(i915)) {
+ vga_get_uninterruptible(pdev, VGA_RSRC_LEGACY_IO);
+ outb(inb(VGA_MIS_R) & ~(1 << 1), VGA_MIS_W);
+ vga_set_legacy_decoding(pdev, VGA_RSRC_LEGACY_IO |
@@ -152,30 +160,48 @@ index 4b98833bf..25a729c95 100644
+ }
+}
+
void intel_vga_redisable_power_on(struct drm_i915_private *dev_priv)
void intel_vga_redisable_power_on(struct intel_display *display)
{
i915_reg_t vga_reg = intel_vga_cntrl_reg(dev_priv);
@@ -53,6 +84,7 @@ void intel_vga_redisable_power_on(struct drm_i915_private *dev_priv)
drm_dbg_kms(&dev_priv->drm,
i915_reg_t vga_reg = intel_vga_cntrl_reg(display);
@@ -54,6 +86,7 @@ void intel_vga_redisable_power_on(struct intel_display *display)
drm_dbg_kms(display->drm,
"Something enabled VGA plane, disabling it\n");
intel_vga_disable(dev_priv);
+ intel_vga_disable_mem(dev_priv);
intel_vga_disable(display);
+ intel_vga_disable_mem(display);
}
}
diff --git a/drivers/gpu/drm/i915/display/intel_vga.h b/drivers/gpu/drm/i915/display/intel_vga.h
index ba5b55b91..7e2af7924 100644
index 824dfc32a..ebe2c89d9 100644
--- a/drivers/gpu/drm/i915/display/intel_vga.h
+++ b/drivers/gpu/drm/i915/display/intel_vga.h
@@ -15,4 +15,8 @@ void intel_vga_redisable_power_on(struct drm_i915_private *i915);
int intel_vga_register(struct drm_i915_private *i915);
void intel_vga_unregister(struct drm_i915_private *i915);
@@ -15,4 +15,8 @@ void intel_vga_redisable_power_on(struct intel_display *display);
int intel_vga_register(struct intel_display *display);
void intel_vga_unregister(struct intel_display *display);
+/* i915 vga arb patch */
+void intel_vga_enable_mem(struct drm_i915_private *i915);
+void intel_vga_disable_mem(struct drm_i915_private *i915);
+void intel_vga_enable_mem(struct intel_display *display);
+void intel_vga_disable_mem(struct intel_display *display);
+
#endif /* __INTEL_VGA_H__ */
--
2.44.0
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h
index 84b0991b3..a908e706e 100644
--- a/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h
@@ -22,6 +22,13 @@ static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
return container_of(dev, struct drm_i915_private, drm);
}
+static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev)
+{
+ struct drm_device *drm = pci_get_drvdata(pdev);
+
+ return drm ? to_i915(drm) : NULL;
+}
+
#define IS_PLATFORM(xe, x) ((xe)->info.platform == x)
#define INTEL_INFO(dev_priv) (&((dev_priv)->info))
#define IS_I830(dev_priv) (dev_priv && 0)
--
2.48.1

52
PKGBUILD
View File

@@ -8,25 +8,24 @@
: ${_build_arch_patch:=true}
: ${_build_clang:=false}
: ${_build_tracer:=true}
: ${_build_numa:=true}
: ${_build_vfio:=true}
: ${_build_lts:=false}
: ${_build_v3:=false}
: ${_build_level:=1}
: ${_cksum:=4a516e5ed748537a73cb42ec47fbbeb6df8b1298e8892c29c0e91de79095b297}
: ${_cksum:=e79dcc6eb86695c6babfb07c2861912b635d5075c6cd1cd0567d1ea155f80d6e}
unset _pkgtype
[[ "${_build_vfio::1}" == "t" ]] && _pkgtype+="-vfio"
[[ "${_build_lts::1}" == "t" ]] && _pkgtype+="-lts"
[[ "${_build_v3::1}" == "t" ]] && _pkgtype+="-x64v3"
[[ ${_build_vfio::1} == "t" ]] && _pkgtype+="-vfio"
[[ ${_build_lts::1} == "t" ]] && _pkgtype+="-lts"
[[ ${_build_level::1} == "2" ]] && _pkgtype+="-x64v2"
[[ ${_build_level::1} == "3" ]] && _pkgtype+="-x64v3"
[[ ${_build_level::1} == "4" ]] && _pkgtype+="-x64v4"
## basic info
_gitname="linux"
_pkgname="$_gitname${_pkgtype:-}"
pkgbase="$_pkgname"
pkgver=6.12.10
pkgver=6.13
pkgrel=1
pkgdesc='Linux'
url='https://www.kernel.org'
@@ -72,12 +71,12 @@ validpgpkeys=(
if [[ ${_build_vfio::1} == "t" ]]; then
source+=(
1001-6.8.0-add-acs-overrides.patch # updated from https://lkml.org/lkml/2013/5/30/513
1002-6.8.0-i915-vga-arbiter.patch # updated from https://lkml.org/lkml/2014/5/9/517
1001-6.13.0-add-acs-overrides.patch # updated from https://lkml.org/lkml/2013/5/30/513
1002-6.13.0-i915-vga-arbiter.patch # updated from https://lkml.org/lkml/2014/5/9/517
)
sha256sums+=(
'b35c26d5dc31fb9cfac68292de7b1ee8ca93b4647e4958efc77e2c77f586f1f2'
'966c15da4044a9a3b5f9d362c2cf08303f1265ad4489c9835c95973b71255d07'
'569742a1c7ce7996ee4c650c444ed13d650fff7b84f23a16e6358693e58aee9f'
'40bb65492702d3f92dd67f8f1e424a1c686f1ff2e2d7d2566451693a7adc09f3'
)
fi
@@ -101,8 +100,8 @@ if [[ ${_build_clang::1} == "t" ]]; then
export LLVM_IAS=1
fi
if [[ "${_build_v3::1}" == "t" ]]; then
export KCFLAGS="-march=x86-64-v3 -mtune=generic -O3"
if [[ ${_build_level::1} =~ ^[2-4]$ ]]; then
export KCFLAGS="-march=x86-64-v${_build_level::1} -mtune=generic -O3"
fi
export KBUILD_BUILD_HOST=archlinux
@@ -113,23 +112,10 @@ _prepare_extra() {
# remove extra version suffix
sed -E 's&^(EXTRAVERSION =).*$&\1&' -i Makefile
if [[ "${_build_clang::1}" == "t" ]]; then
if [[ ${_build_clang::1} == "t" ]]; then
scripts/config --disable LTO_CLANG_FULL
scripts/config --enable LTO_CLANG_THIN
fi
if [[ "${_build_clang::1}" == "t" ]] || [[ "${_build_tracer::1}" != "t" ]]; then
echo "Disabling Tracers..."
scripts/config \
--disable CONFIG_FTRACE \
--disable CONFIG_FUNCTION_TRACER \
--disable CONFIG_STACK_TRACER
fi
if [[ "${_build_numa::1}" != "t" ]]; then
echo "Disabling NUMA..."
scripts/config --disable CONFIG_NUMA
fi
}
prepare() {
@@ -147,9 +133,9 @@ prepare() {
src="${src##*/}"
src="${src%.zst}"
[[ $src = *.patch ]] || continue
echo
echo "Applying patch $src..."
patch -Np1 -F100 -i "../$src"
echo
done
echo "Setting config..."
@@ -178,8 +164,9 @@ _package() {
kmod
)
optdepends=(
'wireless-regdb: to set the correct wireless channels of your country'
'linux-firmware: firmware images needed for some devices'
'scx-scheds: to use sched-ext schedulers'
'wireless-regdb: to set the correct wireless channels of your country'
)
provides=(
KSMBD-MODULE
@@ -215,10 +202,11 @@ _package-headers() {
echo "Installing build files..."
install -Dt "$builddir" -m644 .config Makefile Module.symvers System.map \
localversion.* version vmlinux
localversion.* version vmlinux tools/bpf/bpftool/vmlinux.h
install -Dt "$builddir/kernel" -m644 kernel/Makefile
install -Dt "$builddir/arch/x86" -m644 arch/x86/Makefile
cp -t "$builddir" -a scripts
ln -srt "$builddir" "$builddir/scripts/gdb/vmlinux-gdb.py"
# required when STACK_VALIDATION is enabled
install -Dt "$builddir/tools/objtool" tools/objtool/objtool