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authorLeah Rowe <leah@libreboot.org>2024-06-01 23:01:30 +0100
committerLeah Rowe <leah@libreboot.org>2024-06-02 19:58:50 +0100
commit429e91f90894d30bc2c6e165d6f2a743c61b76f3 (patch)
tree67b347fab1b896ab95c38303b5e124eab16ece62 /config/grub/patches/0002-luks2/0004-Define-GRUB_UINT32_MAX.patch
parent9daf7f05f14c74189daa820eae0127641c4d11d4 (diff)
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>
Diffstat (limited to 'config/grub/patches/0002-luks2/0004-Define-GRUB_UINT32_MAX.patch')
-rw-r--r--config/grub/patches/0002-luks2/0004-Define-GRUB_UINT32_MAX.patch39
1 files changed, 0 insertions, 39 deletions
diff --git a/config/grub/patches/0002-luks2/0004-Define-GRUB_UINT32_MAX.patch b/config/grub/patches/0002-luks2/0004-Define-GRUB_UINT32_MAX.patch
deleted file mode 100644
index be875e67..00000000
--- a/config/grub/patches/0002-luks2/0004-Define-GRUB_UINT32_MAX.patch
+++ /dev/null
@@ -1,39 +0,0 @@
-From 9edaaffac91d593a439e44bac3b6f5558f5a8245 Mon Sep 17 00:00:00 2001
-From: Ax333l <main@axelen.xyz>
-Date: Thu, 17 Aug 2023 00:00:00 +0000
-Subject: [PATCH 2/6] Define GRUB_UINT32_MAX
-
-Signed-off-by: Nicholas Johnson <nick@nicholasjohnson.ch>
----
- include/grub/types.h | 8 ++++++++
- 1 file changed, 8 insertions(+)
-
-diff --git a/include/grub/types.h b/include/grub/types.h
-index 0d96006fe..a13f3a60b 100644
---- a/include/grub/types.h
-+++ b/include/grub/types.h
-@@ -156,6 +156,7 @@ typedef grub_int32_t grub_ssize_t;
- #define GRUB_SHRT_MAX 0x7fff
- #define GRUB_SHRT_MIN (-GRUB_SHRT_MAX - 1)
- #define GRUB_UINT_MAX 4294967295U
-+#define GRUB_UINT32_MAX 4294967295U
- #define GRUB_INT_MAX 0x7fffffff
- #define GRUB_INT_MIN (-GRUB_INT_MAX - 1)
- #define GRUB_INT32_MAX 2147483647
-@@ -177,6 +178,13 @@ typedef grub_int32_t grub_ssize_t;
- #define GRUB_TYPE_U_MAX(type) ((unsigned long long)((typeof (type))(~0)))
- #define GRUB_TYPE_U_MIN(type) 0ULL
-
-+# define GRUB_UINT32_C(x) x ## U
-+# if GRUB_ULONG_MAX >> 31 >> 31 >> 1 == 1
-+# define GRUB_UINT64_C(x) x##UL
-+# elif 1
-+# define GRUB_UINT64_C(x) x##ULL
-+# endif
-+
- typedef grub_uint64_t grub_properly_aligned_t;
-
- #define GRUB_PROPERLY_ALIGNED_ARRAY(name, size) grub_properly_aligned_t name[((size) + sizeof (grub_properly_aligned_t) - 1) / sizeof (grub_properly_aligned_t)]
---
-2.39.2
-