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Update to 4.17.14-arch1-1

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This commit is contained in:
Mark Weiman 2018-08-13 13:21:15 -04:00
parent b9b5d6034c
commit ea08fe1b77
7 changed files with 209 additions and 733 deletions
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26
.SRCINFO
View File

@ -1,7 +1,7 @@
pkgbase = linux-vfio pkgbase = linux-vfio
pkgver = 4.17.10 pkgver = 4.17.14.arch1
pkgrel = 1 pkgrel = 1
url = https://www.kernel.org/ url = https://git.archlinux.org/linux.git/log/?h=v4.17.14-arch1
arch = x86_64 arch = x86_64
license = GPL2 license = GPL2
makedepends = xmlto makedepends = xmlto
@ -9,36 +9,24 @@ pkgbase = linux-vfio
makedepends = inetutils makedepends = inetutils
makedepends = bc makedepends = bc
makedepends = libelf makedepends = libelf
makedepends = git
options = !strip options = !strip
source = https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.17.tar.xz source = archlinux-linux::git+https://git.archlinux.org/linux.git?signed#tag=v4.17.14-arch1
source = https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.17.tar.sign
source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.17.10.xz
source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.17.10.sign
source = config source = config
source = 60-linux.hook source = 60-linux.hook
source = 90-linux.hook source = 90-linux.hook
source = linux.preset source = linux.preset
source = 0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
source = 0002-Revert-drm-i915-edp-Allow-alternate-fixed-mode-for-e.patch
source = 0003-ACPI-watchdog-Prefer-iTCO_wdt-always-when-WDAT-table.patch
source = 0004-mac80211-disable-BHs-preemption-in-ieee80211_tx_cont.patch
source = add-acs-overrides.patch source = add-acs-overrides.patch
source = i915-vga-arbiter.patch source = i915-vga-arbiter.patch
validpgpkeys = ABAF11C65A2970B130ABE3C479BE3E4300411886 validpgpkeys = ABAF11C65A2970B130ABE3C479BE3E4300411886
validpgpkeys = 647F28654894E3BD457199BE38DBBDC86092693E validpgpkeys = 647F28654894E3BD457199BE38DBBDC86092693E
sha256sums = 9faa1dd896eaea961dc6e886697c0b3301277102e5bc976b2758f9a62d3ccd13 validpgpkeys = 8218F88849AAC522E94CF470A5E9288C4FA415FA
sha256sums = SKIP
sha256sums = 41ad005296c7a1b5245a87881f666b3f4d7aa05a6b9409454b2e473d473c4cee
sha256sums = SKIP sha256sums = SKIP
sha256sums = 0269d9a56f0d0306c9bd5c179a7e32214b0a1c082d3bca581661203b27305f17 sha256sums = 0269d9a56f0d0306c9bd5c179a7e32214b0a1c082d3bca581661203b27305f17
sha256sums = ae2e95db94ef7176207c690224169594d49445e04249d2499e9d2fbc117a0b21 sha256sums = ae2e95db94ef7176207c690224169594d49445e04249d2499e9d2fbc117a0b21
sha256sums = 75f99f5239e03238f88d1a834c50043ec32b1dc568f2cc291b07d04718483919 sha256sums = 75f99f5239e03238f88d1a834c50043ec32b1dc568f2cc291b07d04718483919
sha256sums = ad6344badc91ad0630caacde83f7f9b97276f80d26a20619a87952be65492c65 sha256sums = ad6344badc91ad0630caacde83f7f9b97276f80d26a20619a87952be65492c65
sha256sums = 92f848d0e21fbb2400e50d1c1021514893423641e5450896d7b1d88aa880b2b9 sha256sums = 5687fbf6508be9c133c721f368be9e572751f27798995af468a363c5f2aedd33
sha256sums = fc3c50ae6bd905608e0533a883ab569fcf54038fb9d6569b391107d9fd00abbc
sha256sums = bc50c605bd0e1fa7437c21ddef728b83b6de3322b988e14713032993dfa1fc69
sha256sums = 66284102261c4ed53db050e9045c8672ba0e5171884b46e58f6cd417774d8578
sha256sums = 5517df72ddb44f873670c75d89544461473274b2636e2299de93eb829510ea50
sha256sums = fc1734c1d24aca66015d93f8636afd52afa0f939516d83efb3457da6b5044944 sha256sums = fc1734c1d24aca66015d93f8636afd52afa0f939516d83efb3457da6b5044944
pkgname = linux-vfio pkgname = linux-vfio
@ -47,7 +35,7 @@ pkgname = linux-vfio
depends = coreutils depends = coreutils
depends = linux-firmware depends = linux-firmware
depends = kmod depends = kmod
depends = mkinitcpio>=0.7 depends = mkinitcpio
optdepends = crda: to set the correct wireless channels of your country optdepends = crda: to set the correct wireless channels of your country
backup = etc/mkinitcpio.d/linux-vfio.preset backup = etc/mkinitcpio.d/linux-vfio.preset

103
0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch
View File

@ -1,103 +0,0 @@
From a2d2476ffec7d988b1a5396586869570e0d6f9d8 Mon Sep 17 00:00:00 2001
Message-Id: <a2d2476ffec7d988b1a5396586869570e0d6f9d8.1531335939.git.jan.steffens@gmail.com>
From: Serge Hallyn <serge.hallyn@canonical.com>
Date: Fri, 31 May 2013 19:12:12 +0100
Subject: [PATCH 1/4] add sysctl to disallow unprivileged CLONE_NEWUSER by
default
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
[bwh: Remove unneeded binary sysctl bits]
Signed-off-by: Daniel Micay <danielmicay@gmail.com>
---
kernel/fork.c | 15 +++++++++++++++
kernel/sysctl.c | 12 ++++++++++++
kernel/user_namespace.c | 3 +++
3 files changed, 30 insertions(+)
diff --git a/kernel/fork.c b/kernel/fork.c
index a5d21c42acfc..675eb3f3a1d1 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -103,6 +103,11 @@
#define CREATE_TRACE_POINTS
#include <trace/events/task.h>
+#ifdef CONFIG_USER_NS
+extern int unprivileged_userns_clone;
+#else
+#define unprivileged_userns_clone 0
+#endif
/*
* Minimum number of threads to boot the kernel
@@ -1592,6 +1597,10 @@ static __latent_entropy struct task_struct *copy_process(
if ((clone_flags & (CLONE_NEWUSER|CLONE_FS)) == (CLONE_NEWUSER|CLONE_FS))
return ERR_PTR(-EINVAL);
+ if ((clone_flags & CLONE_NEWUSER) && !unprivileged_userns_clone)
+ if (!capable(CAP_SYS_ADMIN))
+ return ERR_PTR(-EPERM);
+
/*
* Thread groups must share signals as well, and detached threads
* can only be started up within the thread group.
@@ -2386,6 +2395,12 @@ int ksys_unshare(unsigned long unshare_flags)
if (unshare_flags & CLONE_NEWNS)
unshare_flags |= CLONE_FS;
+ if ((unshare_flags & CLONE_NEWUSER) && !unprivileged_userns_clone) {
+ err = -EPERM;
+ if (!capable(CAP_SYS_ADMIN))
+ goto bad_unshare_out;
+ }
+
err = check_unshare_flags(unshare_flags);
if (err)
goto bad_unshare_out;
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 6a78cf70761d..35a1d24282f4 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -105,6 +105,9 @@ extern int core_uses_pid;
extern char core_pattern[];
extern unsigned int core_pipe_limit;
#endif
+#ifdef CONFIG_USER_NS
+extern int unprivileged_userns_clone;
+#endif
extern int pid_max;
extern int pid_max_min, pid_max_max;
extern int percpu_pagelist_fraction;
@@ -519,6 +522,15 @@ static struct ctl_table kern_table[] = {
.proc_handler = proc_dointvec,
},
#endif
+#ifdef CONFIG_USER_NS
+ {
+ .procname = "unprivileged_userns_clone",
+ .data = &unprivileged_userns_clone,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+#endif
#ifdef CONFIG_PROC_SYSCTL
{
.procname = "tainted",
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 246d4d4ce5c7..f64432b45cec 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -26,6 +26,9 @@
#include <linux/bsearch.h>
#include <linux/sort.h>
+/* sysctl */
+int unprivileged_userns_clone;
+
static struct kmem_cache *user_ns_cachep __read_mostly;
static DEFINE_MUTEX(userns_state_mutex);
--
2.18.0

242
0002-Revert-drm-i915-edp-Allow-alternate-fixed-mode-for-e.patch
View File

@ -1,242 +0,0 @@
From bc49947e26285cf644492f9d58981e3c985d8c76 Mon Sep 17 00:00:00 2001
Message-Id: <bc49947e26285cf644492f9d58981e3c985d8c76.1531335939.git.jan.steffens@gmail.com>
In-Reply-To: <a2d2476ffec7d988b1a5396586869570e0d6f9d8.1531335939.git.jan.steffens@gmail.com>
References: <a2d2476ffec7d988b1a5396586869570e0d6f9d8.1531335939.git.jan.steffens@gmail.com>
From: Jani Nikula <jani.nikula@intel.com>
Date: Wed, 16 May 2018 11:01:10 +0300
Subject: [PATCH 2/4] Revert "drm/i915/edp: Allow alternate fixed mode for eDP
if available."
This reverts commit dc911f5bd8aacfcf8aabd5c26c88e04c837a938e.
Per the report, no matter what display mode you select with xrandr, the
i915 driver will always select the alternate fixed mode. For the
reporter this means that the display will always run at 40Hz which is
quite annoying. This may be due to the mode comparison.
But there are some other potential issues. The choice of alt_fixed_mode
seems dubious. It's the first non-preferred mode, but there are no
guarantees that the only difference would be refresh rate. Similarly,
there may be more than one preferred mode in the probed modes list, and
the commit changes the preferred mode selection to choose the last one
on the list instead of the first.
(Note that the probed modes list is the raw, unfiltered, unsorted list
of modes from drm_add_edid_modes(), not the pretty result after a
drm_helper_probe_single_connector_modes() call.)
Finally, we already have eerily similar code in place to find the
downclock mode for DRRS that seems like could be reused here.
Back to the drawing board.
Note: This is a hand-crafted revert due to conflicts. If it fails to
backport, please just try reverting the original commit directly.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105469
Reported-by: Rune Petersen <rune@megahurts.dk>
Reported-by: Mark Spencer <n7u4722r35@ynzlx.anonbox.net>
Fixes: dc911f5bd8aa ("drm/i915/edp: Allow alternate fixed mode for eDP if available.")
Cc: Clint Taylor <clinton.a.taylor@intel.com>
Cc: David Weinehall <david.weinehall@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jim Bride <jim.bride@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v4.14+
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180516080110.22770-1-jani.nikula@intel.com
---
drivers/gpu/drm/i915/intel_dp.c | 38 ++++--------------------------
drivers/gpu/drm/i915/intel_drv.h | 2 --
drivers/gpu/drm/i915/intel_dsi.c | 2 +-
drivers/gpu/drm/i915/intel_dvo.c | 2 +-
drivers/gpu/drm/i915/intel_lvds.c | 3 +--
drivers/gpu/drm/i915/intel_panel.c | 6 -----
6 files changed, 8 insertions(+), 45 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index cd6e87756509..492b0cb9bb2b 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1674,23 +1674,6 @@ static int intel_dp_compute_bpp(struct intel_dp *intel_dp,
return bpp;
}
-static bool intel_edp_compare_alt_mode(struct drm_display_mode *m1,
- struct drm_display_mode *m2)
-{
- bool bres = false;
-
- if (m1 && m2)
- bres = (m1->hdisplay == m2->hdisplay &&
- m1->hsync_start == m2->hsync_start &&
- m1->hsync_end == m2->hsync_end &&
- m1->htotal == m2->htotal &&
- m1->vdisplay == m2->vdisplay &&
- m1->vsync_start == m2->vsync_start &&
- m1->vsync_end == m2->vsync_end &&
- m1->vtotal == m2->vtotal);
- return bres;
-}
-
bool
intel_dp_compute_config(struct intel_encoder *encoder,
struct intel_crtc_state *pipe_config,
@@ -1737,16 +1720,8 @@ intel_dp_compute_config(struct intel_encoder *encoder,
pipe_config->has_audio = intel_conn_state->force_audio == HDMI_AUDIO_ON;
if (intel_dp_is_edp(intel_dp) && intel_connector->panel.fixed_mode) {
- struct drm_display_mode *panel_mode =
- intel_connector->panel.alt_fixed_mode;
- struct drm_display_mode *req_mode = &pipe_config->base.mode;
-
- if (!intel_edp_compare_alt_mode(req_mode, panel_mode))
- panel_mode = intel_connector->panel.fixed_mode;
-
- drm_mode_debug_printmodeline(panel_mode);
-
- intel_fixed_panel_mode(panel_mode, adjusted_mode);
+ intel_fixed_panel_mode(intel_connector->panel.fixed_mode,
+ adjusted_mode);
if (INTEL_GEN(dev_priv) >= 9) {
int ret;
@@ -6123,7 +6098,6 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
struct drm_i915_private *dev_priv = to_i915(dev);
struct drm_connector *connector = &intel_connector->base;
struct drm_display_mode *fixed_mode = NULL;
- struct drm_display_mode *alt_fixed_mode = NULL;
struct drm_display_mode *downclock_mode = NULL;
bool has_dpcd;
struct drm_display_mode *scan;
@@ -6178,14 +6152,13 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
}
intel_connector->edid = edid;
- /* prefer fixed mode from EDID if available, save an alt mode also */
+ /* prefer fixed mode from EDID if available */
list_for_each_entry(scan, &connector->probed_modes, head) {
if ((scan->type & DRM_MODE_TYPE_PREFERRED)) {
fixed_mode = drm_mode_duplicate(dev, scan);
downclock_mode = intel_dp_drrs_init(
intel_connector, fixed_mode);
- } else if (!alt_fixed_mode) {
- alt_fixed_mode = drm_mode_duplicate(dev, scan);
+ break;
}
}
@@ -6222,8 +6195,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
pipe_name(pipe));
}
- intel_panel_init(&intel_connector->panel, fixed_mode, alt_fixed_mode,
- downclock_mode);
+ intel_panel_init(&intel_connector->panel, fixed_mode, downclock_mode);
intel_connector->panel.backlight.power = intel_edp_backlight_power;
intel_panel_setup_backlight(connector, pipe);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index a80fbad9be0f..7f3e83f17adb 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -269,7 +269,6 @@ struct intel_encoder {
struct intel_panel {
struct drm_display_mode *fixed_mode;
- struct drm_display_mode *alt_fixed_mode;
struct drm_display_mode *downclock_mode;
/* backlight */
@@ -1820,7 +1819,6 @@ void intel_overlay_reset(struct drm_i915_private *dev_priv);
/* intel_panel.c */
int intel_panel_init(struct intel_panel *panel,
struct drm_display_mode *fixed_mode,
- struct drm_display_mode *alt_fixed_mode,
struct drm_display_mode *downclock_mode);
void intel_panel_fini(struct intel_panel *panel);
void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 384b37e2da70..f349b3920199 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -1852,7 +1852,7 @@ void intel_dsi_init(struct drm_i915_private *dev_priv)
connector->display_info.width_mm = fixed_mode->width_mm;
connector->display_info.height_mm = fixed_mode->height_mm;
- intel_panel_init(&intel_connector->panel, fixed_mode, NULL, NULL);
+ intel_panel_init(&intel_connector->panel, fixed_mode, NULL);
intel_panel_setup_backlight(connector, INVALID_PIPE);
intel_dsi_add_properties(intel_connector);
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index 6604806f89d5..61d908e0df0e 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -542,7 +542,7 @@ void intel_dvo_init(struct drm_i915_private *dev_priv)
*/
intel_panel_init(&intel_connector->panel,
intel_dvo_get_current_mode(intel_encoder),
- NULL, NULL);
+ NULL);
intel_dvo->panel_wants_dither = true;
}
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 34dd1e5233ac..48f618dc9abb 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -1180,8 +1180,7 @@ void intel_lvds_init(struct drm_i915_private *dev_priv)
out:
mutex_unlock(&dev->mode_config.mutex);
- intel_panel_init(&intel_connector->panel, fixed_mode, NULL,
- downclock_mode);
+ intel_panel_init(&intel_connector->panel, fixed_mode, downclock_mode);
intel_panel_setup_backlight(connector, INVALID_PIPE);
lvds_encoder->is_dual_link = compute_is_dual_link_lvds(lvds_encoder);
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 41d00b1603e3..b443278e569c 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -1928,30 +1928,24 @@ intel_panel_init_backlight_funcs(struct intel_panel *panel)
int intel_panel_init(struct intel_panel *panel,
struct drm_display_mode *fixed_mode,
- struct drm_display_mode *alt_fixed_mode,
struct drm_display_mode *downclock_mode)
{
intel_panel_init_backlight_funcs(panel);
panel->fixed_mode = fixed_mode;
- panel->alt_fixed_mode = alt_fixed_mode;
panel->downclock_mode = downclock_mode;
return 0;
}
void intel_panel_fini(struct intel_panel *panel)
{
struct intel_connector *intel_connector =
container_of(panel, struct intel_connector, panel);
if (panel->fixed_mode)
drm_mode_destroy(intel_connector->base.dev, panel->fixed_mode);
- if (panel->alt_fixed_mode)
- drm_mode_destroy(intel_connector->base.dev,
- panel->alt_fixed_mode);
-
if (panel->downclock_mode)
drm_mode_destroy(intel_connector->base.dev,
panel->downclock_mode);
--
2.18.0

132
0003-ACPI-watchdog-Prefer-iTCO_wdt-always-when-WDAT-table.patch
View File

@ -1,132 +0,0 @@
From 598ca9d1cc714cb530141c20a90dc25d34f861fd Mon Sep 17 00:00:00 2001
Message-Id: <598ca9d1cc714cb530141c20a90dc25d34f861fd.1531335939.git.jan.steffens@gmail.com>
In-Reply-To: <a2d2476ffec7d988b1a5396586869570e0d6f9d8.1531335939.git.jan.steffens@gmail.com>
References: <a2d2476ffec7d988b1a5396586869570e0d6f9d8.1531335939.git.jan.steffens@gmail.com>
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Tue, 22 May 2018 14:16:50 +0300
Subject: [PATCH 3/4] ACPI / watchdog: Prefer iTCO_wdt always when WDAT table
uses RTC SRAM
After we added quirk for Lenovo Z50-70 it turns out there are at least
two more systems where WDAT table includes instructions accessing RTC
SRAM. Instead of quirking each system separately, look for such
instructions in the table and automatically prefer iTCO_wdt if found.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=199033
Reported-by: Arnold Guy <aurnoldg@gmail.com>
Reported-by: Alois Nespor <nespor@fssp.cz>
Reported-by: Yury Pakin <zxwarior@gmail.com>
Reported-by: Ihor Chyhin <ihorchyhin@ukr.net>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
---
drivers/acpi/acpi_watchdog.c | 72 ++++++++++++++++++++++--------------
1 file changed, 45 insertions(+), 27 deletions(-)
diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c
index 4bde16fb97d8..95600309ce42 100644
--- a/drivers/acpi/acpi_watchdog.c
+++ b/drivers/acpi/acpi_watchdog.c
@@ -12,54 +12,72 @@
#define pr_fmt(fmt) "ACPI: watchdog: " fmt
#include <linux/acpi.h>
-#include <linux/dmi.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include "internal.h"
-static const struct dmi_system_id acpi_watchdog_skip[] = {
- {
- /*
- * On Lenovo Z50-70 there are two issues with the WDAT
- * table. First some of the instructions use RTC SRAM
- * to store persistent information. This does not work well
- * with Linux RTC driver. Second, more important thing is
- * that the instructions do not actually reset the system.
- *
- * On this particular system iTCO_wdt seems to work just
- * fine so we prefer that over WDAT for now.
- *
- * See also https://bugzilla.kernel.org/show_bug.cgi?id=199033.
- */
- .ident = "Lenovo Z50-70",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_NAME, "20354"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Z50-70"),
- },
- },
- {}
-};
+#ifdef CONFIG_RTC_MC146818_LIB
+#include <linux/mc146818rtc.h>
+
+/*
+ * There are several systems where the WDAT table is accessing RTC SRAM to
+ * store persistent information. This does not work well with the Linux RTC
+ * driver so on those systems we skip WDAT driver and prefer iTCO_wdt
+ * instead.
+ *
+ * See also https://bugzilla.kernel.org/show_bug.cgi?id=199033.
+ */
+static bool acpi_watchdog_uses_rtc(const struct acpi_table_wdat *wdat)
+{
+ const struct acpi_wdat_entry *entries;
+ int i;
+
+ entries = (struct acpi_wdat_entry *)(wdat + 1);
+ for (i = 0; i < wdat->entries; i++) {
+ const struct acpi_generic_address *gas;
+
+ gas = &entries[i].register_region;
+ if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
+ switch (gas->address) {
+ case RTC_PORT(0):
+ case RTC_PORT(1):
+ case RTC_PORT(2):
+ case RTC_PORT(3):
+ return true;
+ }
+ }
+ }
+
+ return false;
+}
+#else
+static bool acpi_watchdog_uses_rtc(const struct acpi_table_wdat *wdat)
+{
+ return false;
+}
+#endif
static const struct acpi_table_wdat *acpi_watchdog_get_wdat(void)
{
const struct acpi_table_wdat *wdat = NULL;
acpi_status status;
if (acpi_disabled)
return NULL;
- if (dmi_check_system(acpi_watchdog_skip))
- return NULL;
-
status = acpi_get_table(ACPI_SIG_WDAT, 0,
(struct acpi_table_header **)&wdat);
if (ACPI_FAILURE(status)) {
/* It is fine if there is no WDAT */
return NULL;
}
+ if (acpi_watchdog_uses_rtc(wdat)) {
+ pr_info("Skipping WDAT on this system because it uses RTC SRAM\n");
+ return NULL;
+ }
+
return wdat;
}
--
2.18.0

46
0004-mac80211-disable-BHs-preemption-in-ieee80211_tx_cont.patch
View File

@ -1,46 +0,0 @@
From 32a72bee7a275f47c235fdb36249703c892ce8d8 Mon Sep 17 00:00:00 2001
Message-Id: <32a72bee7a275f47c235fdb36249703c892ce8d8.1531335939.git.jan.steffens@gmail.com>
In-Reply-To: <a2d2476ffec7d988b1a5396586869570e0d6f9d8.1531335939.git.jan.steffens@gmail.com>
References: <a2d2476ffec7d988b1a5396586869570e0d6f9d8.1531335939.git.jan.steffens@gmail.com>
From: Denis Kenzior <denkenz@gmail.com>
Date: Tue, 19 Jun 2018 10:39:50 -0500
Subject: [PATCH 4/4] mac80211: disable BHs/preemption in
ieee80211_tx_control_port()
On pre-emption enabled kernels the following print was being seen due to
missing local_bh_disable/local_bh_enable calls. mac80211 assumes that
pre-emption is disabled in the data path.
BUG: using smp_processor_id() in preemptible [00000000] code: iwd/517
caller is __ieee80211_subif_start_xmit+0x144/0x210 [mac80211]
[...]
Call Trace:
dump_stack+0x5c/0x80
check_preemption_disabled.cold.0+0x46/0x51
__ieee80211_subif_start_xmit+0x144/0x210 [mac80211]
Fixes: 911806491425 ("mac80211: Add support for tx_control_port")
Signed-off-by: Denis Kenzior <denkenz@gmail.com>
[commit message rewrite, fixes tag]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
net/mac80211/tx.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 05a265cd573d..7404a5114597 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -4800,7 +4800,9 @@ int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
skb_reset_network_header(skb);
skb_reset_mac_header(skb);
+ local_bh_disable();
__ieee80211_subif_start_xmit(skb, skb->dev, flags);
+ local_bh_enable();
return 0;
}
--
2.18.0

328
PKGBUILD
View File

@ -1,256 +1,228 @@
# Maintainer: Dan Ziemba <zman0900@gmail.com> # $Id$
# Maintainer: Mark Weiman <markzz@archlinux.net> # Maintainer: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
# Maintainer: Tobias Powalowski <tpowa@archlinux.org>
# Maintainer: Thomas Baechler <thomas@archlinux.org>
pkgbase=linux-vfio pkgbase=linux-vfio
_srcname=linux-4.17 _srcver=4.17.14-arch1
pkgver=4.17.10 pkgver=${_srcver//-/.}
pkgrel=1 pkgrel=1
arch=('x86_64') arch=(x86_64)
url="https://www.kernel.org/" url="https://git.archlinux.org/linux.git/log/?h=v$_srcver"
license=('GPL2') license=(GPL2)
makedepends=('xmlto' 'kmod' 'inetutils' 'bc' 'libelf') makedepends=(xmlto kmod inetutils bc libelf git)
options=('!strip') options=('!strip')
_srcname=archlinux-linux
source=( source=(
https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.{xz,sign} "$_srcname::git+https://git.archlinux.org/linux.git?signed#tag=v$_srcver"
https://www.kernel.org/pub/linux/kernel/v4.x/patch-${pkgver}.{xz,sign} config # the main kernel config file
config # the main kernel config file 60-linux.hook # pacman hook for depmod
60-linux.hook # pacman hook for depmod 90-linux.hook # pacman hook for initramfs regeneration
90-linux.hook # pacman hook for initramfs regeneration linux.preset # standard config files for mkinitcpio ramdisk
linux.preset # standard config files for mkinitcpio ramdisk add-acs-overrides.patch # patch for acs overrides
0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch i915-vga-arbiter.patch # patch for i915 VGA arbiter
0002-Revert-drm-i915-edp-Allow-alternate-fixed-mode-for-e.patch
0003-ACPI-watchdog-Prefer-iTCO_wdt-always-when-WDAT-table.patch
0004-mac80211-disable-BHs-preemption-in-ieee80211_tx_cont.patch
# patches for pci passthrough
add-acs-overrides.patch
i915-vga-arbiter.patch
) )
validpgpkeys=( validpgpkeys=(
'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds 'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds
'647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman '647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
'8218F88849AAC522E94CF470A5E9288C4FA415FA' # Jan Alexander Steffens (heftig)
) )
sha256sums=('9faa1dd896eaea961dc6e886697c0b3301277102e5bc976b2758f9a62d3ccd13' sha256sums=('SKIP'
'SKIP'
'41ad005296c7a1b5245a87881f666b3f4d7aa05a6b9409454b2e473d473c4cee'
'SKIP'
'0269d9a56f0d0306c9bd5c179a7e32214b0a1c082d3bca581661203b27305f17' '0269d9a56f0d0306c9bd5c179a7e32214b0a1c082d3bca581661203b27305f17'
'ae2e95db94ef7176207c690224169594d49445e04249d2499e9d2fbc117a0b21' 'ae2e95db94ef7176207c690224169594d49445e04249d2499e9d2fbc117a0b21'
'75f99f5239e03238f88d1a834c50043ec32b1dc568f2cc291b07d04718483919' '75f99f5239e03238f88d1a834c50043ec32b1dc568f2cc291b07d04718483919'
'ad6344badc91ad0630caacde83f7f9b97276f80d26a20619a87952be65492c65' 'ad6344badc91ad0630caacde83f7f9b97276f80d26a20619a87952be65492c65'
'92f848d0e21fbb2400e50d1c1021514893423641e5450896d7b1d88aa880b2b9' '5687fbf6508be9c133c721f368be9e572751f27798995af468a363c5f2aedd33'
'fc3c50ae6bd905608e0533a883ab569fcf54038fb9d6569b391107d9fd00abbc'
'bc50c605bd0e1fa7437c21ddef728b83b6de3322b988e14713032993dfa1fc69'
'66284102261c4ed53db050e9045c8672ba0e5171884b46e58f6cd417774d8578'
'5517df72ddb44f873670c75d89544461473274b2636e2299de93eb829510ea50'
'fc1734c1d24aca66015d93f8636afd52afa0f939516d83efb3457da6b5044944') 'fc1734c1d24aca66015d93f8636afd52afa0f939516d83efb3457da6b5044944')
_kernelname=${pkgbase#linux} _kernelname=${pkgbase#linux}
: ${_kernelname:=-ARCH} : ${_kernelname:=-ARCH}
prepare() { prepare() {
cd ${_srcname} cd $_srcname
# add upstream patch msg2 "Setting version..."
patch -p1 -i ../patch-${pkgver} scripts/setlocalversion --save-scmversion
echo "-$pkgrel" > localversion.10-pkgrel
echo "$_kernelname" > localversion.20-pkgname
# add latest fixes from stable queue, if needed local src
# http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git for src in "${source[@]}"; do
src="${src%%::*}"
src="${src##*/}"
[[ $src = *.patch ]] || continue
msg2 "Applying patch $src..."
patch -Np1 < "../$src"
done
# disable USER_NS for non-root users by default msg2 "Setting config..."
patch -Np1 -i ../0001-add-sysctl-to-disallow-unprivileged-CLONE_NEWUSER-by.patch cp ../config .config
make olddefconfig
# https://bugs.archlinux.org/task/56711 make -s kernelrelease > ../version
patch -Np1 -i ../0002-Revert-drm-i915-edp-Allow-alternate-fixed-mode-for-e.patch msg2 "Prepared %s version %s" "$pkgbase" "$(<../version)"
# https://bugs.archlinux.org/task/56780
patch -Np1 -i ../0003-ACPI-watchdog-Prefer-iTCO_wdt-always-when-WDAT-table.patch
# Fix iwd provoking a BUG
patch -Np1 -i ../0004-mac80211-disable-BHs-preemption-in-ieee80211_tx_cont.patch
# patches for vga arbiter fix in intel systems
patch -p1 -i "${srcdir}/i915-vga-arbiter.patch"
# Overrides for missing acs capabilities
patch -p1 -i "${srcdir}/add-acs-overrides.patch"
cat ../config - >.config <<END
CONFIG_LOCALVERSION="${_kernelname}"
CONFIG_LOCALVERSION_AUTO=n
END
# set extraversion to pkgrel and empty localversion
sed -e "/^EXTRAVERSION =/s/=.*/= -${pkgrel}/" \
-e "/^EXTRAVERSION =/aLOCALVERSION =" \
-i Makefile
# don't run depmod on 'make install'. We'll do this ourselves in packaging
sed -i '2iexit 0' scripts/depmod.sh
# get kernel version
make prepare
# load configuration
# Configure the kernel. Replace the line below with one of your choice.
#make menuconfig # CLI menu for configuration
#make nconfig # new CLI menu for configuration
#make xconfig # X-based configuration
#make oldconfig # using old config from previous kernel version
# ... or manually edit .config
# rewrite configuration
yes "" | make config >/dev/null
} }
build() { build() {
cd ${_srcname} cd $_srcname
make bzImage modules make bzImage modules
} }
_package() { _package() {
pkgdesc="The ${pkgbase/linux/Linux} kernel and modules" pkgdesc="The ${pkgbase/linux/Linux} kernel and modules"
[ "${pkgbase}" = "linux" ] && groups=('base') [[ $pkgbase = linux ]] && groups=(base)
depends=('coreutils' 'linux-firmware' 'kmod' 'mkinitcpio>=0.7') depends=(coreutils linux-firmware kmod mkinitcpio)
optdepends=('crda: to set the correct wireless channels of your country') optdepends=('crda: to set the correct wireless channels of your country')
backup=("etc/mkinitcpio.d/${pkgbase}.preset") backup=("etc/mkinitcpio.d/$pkgbase.preset")
install=linux.install install=linux.install
cd ${_srcname} local kernver="$(<version)"
# get kernel version cd $_srcname
_kernver="$(make kernelrelease)"
_basekernel=${_kernver%%-*}
_basekernel=${_basekernel%.*}
mkdir -p "${pkgdir}"/{boot,usr/lib/modules} msg2 "Installing boot image..."
make INSTALL_MOD_PATH="${pkgdir}/usr" modules_install install -Dm644 "$(make -s image_name)" "$pkgdir/boot/vmlinuz-$pkgbase"
cp arch/x86/boot/bzImage "${pkgdir}/boot/vmlinuz-${pkgbase}"
# make room for external modules msg2 "Installing modules..."
local _extramodules="extramodules-${_basekernel}${_kernelname}" local modulesdir="$pkgdir/usr/lib/modules/$kernver"
ln -s "../${_extramodules}" "${pkgdir}/usr/lib/modules/${_kernver}/extramodules" mkdir -p "$modulesdir"
make INSTALL_MOD_PATH="$pkgdir/usr" DEPMOD=/doesnt/exist modules_install
# add real version for building modules and running depmod from hook # a place for external modules,
echo "${_kernver}" | # with version file for building modules and running depmod from hook
install -Dm644 /dev/stdin "${pkgdir}/usr/lib/modules/${_extramodules}/version" local extramodules="extramodules$_kernelname"
local extradir="$pkgdir/usr/lib/modules/$extramodules"
install -Dt "$extradir" -m644 ../version
ln -sr "$extradir" "$modulesdir/extramodules"
# remove build and source links # remove build and source links
rm "${pkgdir}"/usr/lib/modules/${_kernver}/{source,build} rm "$modulesdir"/{source,build}
# now we call depmod... msg2 "Running depmod..."
depmod -b "${pkgdir}/usr" -F System.map "${_kernver}" depmod -b "$pkgdir/usr" -E Module.symvers -e "$kernver"
# add vmlinux msg2 "Installing hooks..."
install -Dt "${pkgdir}/usr/lib/modules/${_kernver}/build" -m644 vmlinux
# sed expression for following substitutions # sed expression for following substitutions
local _subst=" local subst="
s|%PKGBASE%|${pkgbase}|g s|%PKGBASE%|$pkgbase|g
s|%KERNVER%|${_kernver}|g s|%KERNVER%|$kernver|g
s|%EXTRAMODULES%|${_extramodules}|g s|%EXTRAMODULES%|$extramodules|g
" "
# hack to allow specifying an initially nonexisting install file # hack to allow specifying an initially nonexisting install file
sed "${_subst}" "${startdir}/${install}" > "${startdir}/${install}.pkg" sed "$subst" "$startdir/$install" > "$startdir/$install.pkg"
true && install=${install}.pkg true && install=$install.pkg
# install mkinitcpio preset file # fill in mkinitcpio preset and pacman hooks
sed "${_subst}" ../linux.preset | sed "$subst" ../linux.preset | install -Dm644 /dev/stdin \
install -Dm644 /dev/stdin "${pkgdir}/etc/mkinitcpio.d/${pkgbase}.preset" "$pkgdir/etc/mkinitcpio.d/$pkgbase.preset"
sed "$subst" ../60-linux.hook | install -Dm644 /dev/stdin \
"$pkgdir/usr/share/libalpm/hooks/60-$pkgbase.hook"
sed "$subst" ../90-linux.hook | install -Dm644 /dev/stdin \
"$pkgdir/usr/share/libalpm/hooks/90-$pkgbase.hook"
# install pacman hooks msg2 "Fixing permissions..."
sed "${_subst}" ../60-linux.hook | chmod -Rc u=rwX,go=rX "$pkgdir"
install -Dm644 /dev/stdin "${pkgdir}/usr/share/libalpm/hooks/60-${pkgbase}.hook"
sed "${_subst}" ../90-linux.hook |
install -Dm644 /dev/stdin "${pkgdir}/usr/share/libalpm/hooks/90-${pkgbase}.hook"
} }
_package-headers() { _package-headers() {
pkgdesc="Header files and scripts for building modules for ${pkgbase/linux/Linux} kernel" pkgdesc="Header files and scripts for building modules for ${pkgbase/linux/Linux} kernel"
cd ${_srcname} local builddir="$pkgdir/usr/lib/modules/$(<version)/build"
local _builddir="${pkgdir}/usr/lib/modules/${_kernver}/build"
install -Dt "${_builddir}" -m644 Makefile .config Module.symvers cd $_srcname
install -Dt "${_builddir}/kernel" -m644 kernel/Makefile
mkdir "${_builddir}/.tmp_versions" msg2 "Installing build files..."
install -Dt "$builddir" -m644 Makefile .config Module.symvers System.map vmlinux
cp -t "${_builddir}" -a include scripts install -Dt "$builddir/kernel" -m644 kernel/Makefile
install -Dt "$builddir/arch/x86" -m644 arch/x86/Makefile
install -Dt "${_builddir}/arch/x86" -m644 arch/x86/Makefile cp -t "$builddir" -a scripts
install -Dt "${_builddir}/arch/x86/kernel" -m644 arch/x86/kernel/asm-offsets.s
cp -t "${_builddir}/arch/x86" -a arch/x86/include
install -Dt "${_builddir}/drivers/md" -m644 drivers/md/*.h
install -Dt "${_builddir}/net/mac80211" -m644 net/mac80211/*.h
# http://bugs.archlinux.org/task/13146
install -Dt "${_builddir}/drivers/media/i2c" -m644 drivers/media/i2c/msp3400-driver.h
# http://bugs.archlinux.org/task/20402
install -Dt "${_builddir}/drivers/media/usb/dvb-usb" -m644 drivers/media/usb/dvb-usb/*.h
install -Dt "${_builddir}/drivers/media/dvb-frontends" -m644 drivers/media/dvb-frontends/*.h
install -Dt "${_builddir}/drivers/media/tuners" -m644 drivers/media/tuners/*.h
# add xfs and shmem for aufs building
mkdir -p "${_builddir}"/{fs/xfs,mm}
# copy in Kconfig files
find . -name Kconfig\* -exec install -Dm644 {} "${_builddir}/{}" \;
# add objtool for external module building and enabled VALIDATION_STACK option # add objtool for external module building and enabled VALIDATION_STACK option
install -Dt "${_builddir}/tools/objtool" tools/objtool/objtool install -Dt "$builddir/tools/objtool" tools/objtool/objtool
# remove unneeded architectures # add xfs and shmem for aufs building
local _arch mkdir -p "$builddir"/{fs/xfs,mm}
for _arch in "${_builddir}"/arch/*/; do
[[ ${_arch} == */x86/ ]] && continue # ???
rm -r "${_arch}" mkdir "$builddir/.tmp_versions"
msg2 "Installing headers..."
cp -t "$builddir" -a include
cp -t "$builddir/arch/x86" -a arch/x86/include
install -Dt "$builddir/arch/x86/kernel" -m644 arch/x86/kernel/asm-offsets.s
install -Dt "$builddir/drivers/md" -m644 drivers/md/*.h
install -Dt "$builddir/net/mac80211" -m644 net/mac80211/*.h
# http://bugs.archlinux.org/task/13146
install -Dt "$builddir/drivers/media/i2c" -m644 drivers/media/i2c/msp3400-driver.h
# http://bugs.archlinux.org/task/20402
install -Dt "$builddir/drivers/media/usb/dvb-usb" -m644 drivers/media/usb/dvb-usb/*.h
install -Dt "$builddir/drivers/media/dvb-frontends" -m644 drivers/media/dvb-frontends/*.h
install -Dt "$builddir/drivers/media/tuners" -m644 drivers/media/tuners/*.h
msg2 "Installing KConfig files..."
find . -name 'Kconfig*' -exec install -Dm644 {} "$builddir/{}" \;
msg2 "Removing unneeded architectures..."
local arch
for arch in "$builddir"/arch/*/; do
[[ $arch = */x86/ ]] && continue
echo "Removing $(basename "$arch")"
rm -r "$arch"
done done
# remove files already in linux-docs package msg2 "Removing documentation..."
rm -r "${_builddir}/Documentation" rm -r "$builddir/Documentation"
# remove now broken symlinks msg2 "Removing broken symlinks..."
find -L "${_builddir}" -type l -printf 'Removing %P\n' -delete find -L "$builddir" -type l -printf 'Removing %P\n' -delete
# Fix permissions msg2 "Removing loose objects..."
chmod -R u=rwX,go=rX "${_builddir}" find "$builddir" -type f -name '*.o' -printf 'Removing %P\n' -delete
# strip scripts directory msg2 "Stripping build tools..."
local _binary _strip local file
while read -rd '' _binary; do while read -rd '' file; do
case "$(file -bi "${_binary}")" in case "$(file -bi "$file")" in
*application/x-sharedlib*) _strip="${STRIP_SHARED}" ;; # Libraries (.so) application/x-sharedlib\;*) # Libraries (.so)
*application/x-archive*) _strip="${STRIP_STATIC}" ;; # Libraries (.a) strip -v $STRIP_SHARED "$file" ;;
*application/x-executable*) _strip="${STRIP_BINARIES}" ;; # Binaries application/x-archive\;*) # Libraries (.a)
*) continue ;; strip -v $STRIP_STATIC "$file" ;;
application/x-executable\;*) # Binaries
strip -v $STRIP_BINARIES "$file" ;;
application/x-pie-executable\;*) # Relocatable binaries
strip -v $STRIP_SHARED "$file" ;;
esac esac
/usr/bin/strip ${_strip} "${_binary}" done < <(find "$builddir" -type f -perm -u+x ! -name vmlinux -print0)
done < <(find "${_builddir}/scripts" -type f -perm -u+w -print0 2>/dev/null)
msg2 "Fixing permissions..."
chmod -Rc u=rwX,go=rX "$pkgdir"
} }
_package-docs() { _package-docs() {
pkgdesc="Kernel hackers manual - HTML documentation that comes with the ${pkgbase/linux/Linux} kernel" pkgdesc="Kernel hackers manual - HTML documentation that comes with the ${pkgbase/linux/Linux} kernel"
cd ${_srcname} local builddir="$pkgdir/usr/lib/modules/$(<version)/build"
local _builddir="${pkgdir}/usr/lib/modules/${_kernver}/build"
mkdir -p "${_builddir}" cd $_srcname
cp -t "${_builddir}" -a Documentation
# Fix permissions msg2 "Installing documentation..."
chmod -R u=rwX,go=rX "${_builddir}" mkdir -p "$builddir"
cp -t "$builddir" -a Documentation
msg2 "Fixing permissions..."
chmod -Rc u=rwX,go=rX "$pkgdir"
} }
pkgname=("${pkgbase}" "${pkgbase}-headers" "${pkgbase}-docs") pkgname=("$pkgbase" "$pkgbase-headers" "$pkgbase-docs")
for _p in ${pkgname[@]}; do for _p in "${pkgname[@]}"; do
eval "package_${_p}() { eval "package_$_p() {
$(declare -f "_package${_p#${pkgbase}}") $(declare -f "_package${_p#$pkgbase}")
_package${_p#${pkgbase}} _package${_p#$pkgbase}
}" }"
done done

65
add-acs-overrides.patch
View File

@ -1,22 +1,61 @@
From 087743912610c92eeff1ffbfbd2964faac969d0f Mon Sep 17 00:00:00 2001 From 3cf550fd8ca366897abe643442d198d1647cadc7 Mon Sep 17 00:00:00 2001
From: Mark Weiman <mark.weiman@markzz.com> From: Mark Weiman <mark.weiman@markzz.com>
Date: Sun, 24 Jun 2018 12:31:25 -0400 Date: Sun, 12 Aug 2018 11:36:21 -0400
Subject: [PATCH] pci: Enable overrides for missing ACS capabilities (4.17) Subject: [PATCH] pci: Enable overrides for missing ACS capabilities (4.17.14)
This an updated version of Alex Williamson's patch from: This an updated version of Alex Williamson's patch from:
https://lkml.org/lkml/2013/5/30/513 https://lkml.org/lkml/2013/5/30/513
Original commit message follows: Original commit message follows:
---
PCIe ACS (Access Control Services) is the PCIe 2.0+ feature that
allows us to control whether transactions are allowed to be redirected
in various subnodes of a PCIe topology. For instance, if two
endpoints are below a root port or downsteam switch port, the
downstream port may optionally redirect transactions between the
devices, bypassing upstream devices. The same can happen internally
on multifunction devices. The transaction may never be visible to the
upstream devices.
One upstream device that we particularly care about is the IOMMU. If
a redirection occurs in the topology below the IOMMU, then the IOMMU
cannot provide isolation between devices. This is why the PCIe spec
encourages topologies to include ACS support. Without it, we have to
assume peer-to-peer DMA within a hierarchy can bypass IOMMU isolation.
Unfortunately, far too many topologies do not support ACS to make this
a steadfast requirement. Even the latest chipsets from Intel are only
sporadically supporting ACS. We have trouble getting interconnect
vendors to include the PCIe spec required PCIe capability, let alone
suggested features.
Therefore, we need to add some flexibility. The pcie_acs_override=
boot option lets users opt-in specific devices or sets of devices to
assume ACS support. The "downstream" option assumes full ACS support
on root ports and downstream switch ports. The "multifunction"
option assumes the subset of ACS features available on multifunction
endpoints and upstream switch ports are supported. The "id:nnnn:nnnn"
option enables ACS support on devices matching the provided vendor
and device IDs, allowing more strategic ACS overrides. These options
may be combined in any order. A maximum of 16 id specific overrides
are available. It's suggested to use the most limited set of options
necessary to avoid completely disabling ACS across the topology.
Note to hardware vendors, we have facilities to permanently quirk
specific devices which enforce isolation but not provide an ACS
capability. Please contact me to have your devices added and save
your customers the hassle of this boot option.
Signed-off-by: Mark Weiman <mark.weiman@markzz.com>
--- ---
.../admin-guide/kernel-parameters.txt | 8 ++ .../admin-guide/kernel-parameters.txt | 8 ++
drivers/pci/quirks.c | 102 ++++++++++++++++++ drivers/pci/quirks.c | 102 ++++++++++++++++++
2 files changed, 110 insertions(+) 2 files changed, 110 insertions(+)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 533ff5c68970..353481231683 100644 index ff4ba249a26f..e23d259d461f 100644
--- a/Documentation/admin-guide/kernel-parameters.txt --- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3028,6 +3028,14 @@ @@ -3019,6 +3019,14 @@
nomsi [MSI] If the PCI_MSI kernel config parameter is nomsi [MSI] If the PCI_MSI kernel config parameter is
enabled, this kernel boot option can be used to enabled, this kernel boot option can be used to
disable the use of MSI interrupts system-wide. disable the use of MSI interrupts system-wide.
@ -32,11 +71,11 @@ index 533ff5c68970..353481231683 100644
Safety option to keep boot IRQs enabled. This Safety option to keep boot IRQs enabled. This
should never be necessary. should never be necessary.
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f439de848658..5c3ec5e04349 100644 index 785a29ba4f51..63fb2096f90d 100644
--- a/drivers/pci/quirks.c --- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c
@@ -186,6 +186,106 @@ static int __init pci_apply_final_quirks(void) @@ -3533,6 +3533,106 @@ static int __init pci_apply_final_quirks(void)
}
fs_initcall_sync(pci_apply_final_quirks); fs_initcall_sync(pci_apply_final_quirks);
+static bool acs_on_downstream; +static bool acs_on_downstream;
@ -140,14 +179,14 @@ index f439de848658..5c3ec5e04349 100644
+} +}
+ +
/* /*
* Decoding should be disabled for a PCI device during BAR sizing to avoid * Following are device-specific reset methods which can be used to
* conflict. But doing so may cause problems on host bridge and perhaps other * reset a single function if other methods (e.g. FLR, PM D0->D3) are
@@ -4395,6 +4495,8 @@ static const struct pci_dev_acs_enabled { @@ -4401,6 +4501,8 @@ static const struct pci_dev_acs_enabled {
{ PCI_VENDOR_ID_AMPERE, 0xE00A, pci_quirk_xgene_acs }, { PCI_VENDOR_ID_AMPERE, 0xE00A, pci_quirk_xgene_acs },
{ PCI_VENDOR_ID_AMPERE, 0xE00B, pci_quirk_xgene_acs }, { PCI_VENDOR_ID_AMPERE, 0xE00B, pci_quirk_xgene_acs },
{ PCI_VENDOR_ID_AMPERE, 0xE00C, pci_quirk_xgene_acs }, { PCI_VENDOR_ID_AMPERE, 0xE00C, pci_quirk_xgene_acs },
+ /* allow acs for any */ + /* allow acs for any */
+ { PCI_ANY_ID, PCI_ANY_ID, pcie_acs_overrides }, + { PCI_ANY_ID, PCI_ANY_ID, pcie_acs_overrides },
{ 0 } { 0 }
}; };