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lbmk/config/grub/xhci/patches/0005-xhci/0001-grub-core-bus-usb-Pars...

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make GRUB multi-tree and re-add xhci patches Re-add xHCI only on haswell and broadwell machines, where they are needed. Otherwise, keep the same GRUB code. The xHCI patches were removed because they caused issues on Sandybridge-based Dell Latitude laptops. See: https://codeberg.org/libreboot/lbmk/issues/216 The issue was not reported elsewhere, including on the Haswell/Broadwell hardware where they are needed, but the build system could only build one version of GRUB. The older machines do not need xHCI patches, because they either do not have xHCI patches, or work (in GRUB) because they're in EHCI mode when running the payload. So, the problem is that we need the xHCI patches for GRUB on Haswell/Broadwell hardware, but the patches break Sandybridge hardware, and we only had the one build of GRUB. To mitigate this problem, the build system now supports building multiple revisions of GRUB, with different patches, and each given coreboot target can say which GRUB tree to use by setting this in target.cfg: grubtree="xhci" In the above example, the "xhci" tree would be used. Some generic GRUB config has been moved to config/data/grub/ and config/grub/ now looks like config/coreboot/ - also, the grub.cfg file (named "payload" in each tree) is copied to the GRUB source tree as ".config", then added to GRUB's memdisk in the same way, as grub.cfg. Several other design changes had to be made because of this: * grub.cfg in memdisk no longer automatically jumps to one in CBFS, but now shows a menuentry for it if available * Certain commands in script/trees are disabled for GRUB, such as *config make commands. * gnulib is now defined in config/submodule/grub/, instead of config/git/grub - and this mitigates an existing bug where downloading gnulib first would make grub no longer possible to download in lbmk. The coreboot option CONFIG_FINALIZE_USB_ROUTE_XHCI has been re-enabled on: Dell OptiPlex 9020 MT, Dell OptiPlex 9020 SFF, Lenovo ThinkPad T440p and Lenovo ThinkPad W541 - now USB should work again in GRUB. The GRUB payload has been re-enabled on HP EliteBook 820 G2. This change will enable per-board GRUB optimisation in the future. For example, we hardcode what partitions and LVMs GRUB scans because * is slow on ICH7-based machines, due to GRUB's design. On other machines, * is reasonably fast, for automatically enumerating the list of devices for boot. Use of * (and other wildcards) could enable our GRUB payload to automatically boot more distros, with minimal fuss. This can be done at a later date, in subsequent revisions. Signed-off-by: Leah Rowe <leah@libreboot.org>
2024-06-01 22:01:30 +00:00
From 90c9011f2e0350a97e3df44b0fc6dd022e04c276 Mon Sep 17 00:00:00 2001
From: Patrick Rudolph <patrick.rudolph@9elements.com>
Date: Sun, 15 Nov 2020 19:00:27 +0100
Subject: [PATCH 1/8] grub-core/bus/usb: Parse SuperSpeed companion descriptors
Parse the SS_ENDPOINT_COMPANION descriptor, which is only present on USB 3.0
capable devices and xHCI controllers. Make the descendp an array of pointers
to the endpoint descriptor as it's no longer an continous array.
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
---
grub-core/bus/usb/serial/common.c | 2 +-
grub-core/bus/usb/usb.c | 44 +++++++++++++++++++------------
grub-core/bus/usb/usbhub.c | 22 ++++++++++++----
grub-core/commands/usbtest.c | 2 +-
grub-core/disk/usbms.c | 2 +-
grub-core/term/usb_keyboard.c | 2 +-
include/grub/usb.h | 2 +-
include/grub/usbdesc.h | 11 +++++++-
8 files changed, 59 insertions(+), 28 deletions(-)
diff --git a/grub-core/bus/usb/serial/common.c b/grub-core/bus/usb/serial/common.c
index e9c995a0a..fc847d66d 100644
--- a/grub-core/bus/usb/serial/common.c
+++ b/grub-core/bus/usb/serial/common.c
@@ -72,7 +72,7 @@ grub_usbserial_attach (grub_usb_device_t usbdev, int configno, int interfno,
for (j = 0; j < interf->endpointcnt; j++)
{
struct grub_usb_desc_endp *endp;
- endp = &usbdev->config[0].interf[interfno].descendp[j];
+ endp = usbdev->config[0].interf[interfno].descendp[j];
if ((endp->endp_addr & 128) && (endp->attrib & 3) == 2
&& (in_endp == GRUB_USB_SERIAL_ENDPOINT_LAST_MATCHING
diff --git a/grub-core/bus/usb/usb.c b/grub-core/bus/usb/usb.c
index 7bd49d201..e578af793 100644
--- a/grub-core/bus/usb/usb.c
+++ b/grub-core/bus/usb/usb.c
@@ -118,7 +118,7 @@ grub_usb_device_initialize (grub_usb_device_t dev)
struct grub_usb_desc_device *descdev;
struct grub_usb_desc_config config;
grub_usb_err_t err;
- int i;
+ int i, j;
/* First we have to read first 8 bytes only and determine
* max. size of packet */
@@ -152,6 +152,7 @@ grub_usb_device_initialize (grub_usb_device_t dev)
int currif;
char *data;
struct grub_usb_desc *desc;
+ struct grub_usb_desc_endp *endp;
/* First just read the first 4 bytes of the configuration
descriptor, after that it is known how many bytes really have
@@ -201,24 +202,27 @@ grub_usb_device_initialize (grub_usb_device_t dev)
= (struct grub_usb_desc_if *) &data[pos];
pos += dev->config[i].interf[currif].descif->length;
+ dev->config[i].interf[currif].descendp = grub_malloc (
+ dev->config[i].interf[currif].descif->endpointcnt *
+ sizeof(struct grub_usb_desc_endp));
+
+ j = 0;
while (pos < config.totallen)
{
desc = (struct grub_usb_desc *)&data[pos];
- if (desc->type == GRUB_USB_DESCRIPTOR_ENDPOINT)
- break;
- if (!desc->length)
- {
- err = GRUB_USB_ERR_BADDEVICE;
- goto fail;
- }
- pos += desc->length;
- }
-
- /* Point to the first endpoint. */
- dev->config[i].interf[currif].descendp
- = (struct grub_usb_desc_endp *) &data[pos];
- pos += (sizeof (struct grub_usb_desc_endp)
- * dev->config[i].interf[currif].descif->endpointcnt);
+ if (desc->type == GRUB_USB_DESCRIPTOR_ENDPOINT) {
+ endp = (struct grub_usb_desc_endp *) &data[pos];
+ dev->config[i].interf[currif].descendp[j++] = endp;
+ pos += desc->length;
+ } else {
+ if (!desc->length)
+ {
+ err = GRUB_USB_ERR_BADDEVICE;
+ goto fail;
+ }
+ pos += desc->length;
+ }
+ }
}
}
@@ -226,8 +230,14 @@ grub_usb_device_initialize (grub_usb_device_t dev)
fail:
- for (i = 0; i < GRUB_USB_MAX_CONF; i++)
+ for (i = 0; i < GRUB_USB_MAX_CONF; i++) {
+ int currif;
+
+ for (currif = 0; currif < dev->config[i].descconf->numif; currif++)
+ grub_free (dev->config[i].interf[currif].descendp);
+
grub_free (dev->config[i].descconf);
+ }
return err;
}
diff --git a/grub-core/bus/usb/usbhub.c b/grub-core/bus/usb/usbhub.c
index f5608e330..2ae29cba1 100644
--- a/grub-core/bus/usb/usbhub.c
+++ b/grub-core/bus/usb/usbhub.c
@@ -82,8 +82,14 @@ grub_usb_hub_add_dev (grub_usb_controller_t controller,
if (i == GRUB_USBHUB_MAX_DEVICES)
{
grub_error (GRUB_ERR_IO, "can't assign address to USB device");
- for (i = 0; i < GRUB_USB_MAX_CONF; i++)
- grub_free (dev->config[i].descconf);
+ for (i = 0; i < GRUB_USB_MAX_CONF; i++) {
+ int currif;
+
+ for (currif = 0; currif < dev->config[i].descconf->numif; currif++)
+ grub_free (dev->config[i].interf[currif].descendp);
+
+ grub_free (dev->config[i].descconf);
+ }
grub_free (dev);
return NULL;
}
@@ -96,8 +102,14 @@ grub_usb_hub_add_dev (grub_usb_controller_t controller,
i, 0, 0, NULL);
if (err)
{
- for (i = 0; i < GRUB_USB_MAX_CONF; i++)
- grub_free (dev->config[i].descconf);
+ for (i = 0; i < GRUB_USB_MAX_CONF; i++) {
+ int currif;
+
+ for (currif = 0; currif < dev->config[i].descconf->numif; currif++)
+ grub_free (dev->config[i].interf[currif].descendp);
+
+ grub_free (dev->config[i].descconf);
+ }
grub_free (dev);
return NULL;
}
@@ -176,7 +188,7 @@ grub_usb_add_hub (grub_usb_device_t dev)
i++)
{
struct grub_usb_desc_endp *endp = NULL;
- endp = &dev->config[0].interf[0].descendp[i];
+ endp = dev->config[0].interf[0].descendp[i];
if ((endp->endp_addr & 128) && grub_usb_get_ep_type(endp)
== GRUB_USB_EP_INTERRUPT)
diff --git a/grub-core/commands/usbtest.c b/grub-core/commands/usbtest.c
index 2c6d93fe6..55a657635 100644
--- a/grub-core/commands/usbtest.c
+++ b/grub-core/commands/usbtest.c
@@ -185,7 +185,7 @@ usb_iterate (grub_usb_device_t dev, void *data __attribute__ ((unused)))
for (j = 0; j < interf->endpointcnt; j++)
{
struct grub_usb_desc_endp *endp;
- endp = &dev->config[0].interf[i].descendp[j];
+ endp = dev->config[0].interf[i].descendp[j];
grub_printf ("Endpoint #%d: %s, max packed size: %d, transfer type: %s, latency: %d\n",
endp->endp_addr & 15,
diff --git a/grub-core/disk/usbms.c b/grub-core/disk/usbms.c
index b81e3ad9d..b1512dc12 100644
--- a/grub-core/disk/usbms.c
+++ b/grub-core/disk/usbms.c
@@ -184,7 +184,7 @@ grub_usbms_attach (grub_usb_device_t usbdev, int configno, int interfno)
for (j = 0; j < interf->endpointcnt; j++)
{
struct grub_usb_desc_endp *endp;
- endp = &usbdev->config[0].interf[interfno].descendp[j];
+ endp = usbdev->config[0].interf[interfno].descendp[j];
if ((endp->endp_addr & 128) && (endp->attrib & 3) == 2)
/* Bulk IN endpoint. */
diff --git a/grub-core/term/usb_keyboard.c b/grub-core/term/usb_keyboard.c
index 7322d8dff..d590979f5 100644
--- a/grub-core/term/usb_keyboard.c
+++ b/grub-core/term/usb_keyboard.c
@@ -175,7 +175,7 @@ grub_usb_keyboard_attach (grub_usb_device_t usbdev, int configno, int interfno)
for (j = 0; j < usbdev->config[configno].interf[interfno].descif->endpointcnt;
j++)
{
- endp = &usbdev->config[configno].interf[interfno].descendp[j];
+ endp = usbdev->config[configno].interf[interfno].descendp[j];
if ((endp->endp_addr & 128) && grub_usb_get_ep_type(endp)
== GRUB_USB_EP_INTERRUPT)
diff --git a/include/grub/usb.h b/include/grub/usb.h
index 0f346af12..688c11f6d 100644
--- a/include/grub/usb.h
+++ b/include/grub/usb.h
@@ -153,7 +153,7 @@ struct grub_usb_interface
{
struct grub_usb_desc_if *descif;
- struct grub_usb_desc_endp *descendp;
+ struct grub_usb_desc_endp **descendp;
/* A driver is handling this interface. Do we need to support multiple drivers
for single interface?
diff --git a/include/grub/usbdesc.h b/include/grub/usbdesc.h
index aac5ab05a..bb2ab2e27 100644
--- a/include/grub/usbdesc.h
+++ b/include/grub/usbdesc.h
@@ -29,7 +29,8 @@ typedef enum {
GRUB_USB_DESCRIPTOR_INTERFACE,
GRUB_USB_DESCRIPTOR_ENDPOINT,
GRUB_USB_DESCRIPTOR_DEBUG = 10,
- GRUB_USB_DESCRIPTOR_HUB = 0x29
+ GRUB_USB_DESCRIPTOR_HUB = 0x29,
+ GRUB_USB_DESCRIPTOR_SS_ENDPOINT_COMPANION = 0x30
} grub_usb_descriptor_t;
struct grub_usb_desc
@@ -105,6 +106,14 @@ struct grub_usb_desc_endp
grub_uint8_t interval;
} GRUB_PACKED;
+struct grub_usb_desc_ssep {
+ grub_uint8_t length;
+ grub_uint8_t type;
+ grub_uint8_t maxburst;
+ grub_uint8_t attrib;
+ grub_uint16_t interval;
+} GRUB_PACKED;
+
struct grub_usb_desc_str
{
grub_uint8_t length;
--
2.39.2