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fa8b2484d0
- Pull in fixes for TSC calibration driver preference (prefer pmtimer over PIT) to boot on Apollo Lake systems with no PIT - Fix pmtimer calibration to not take forever to fail on kvm. Signed-off-by: Peter Jones <pjones@redhat.com>
81 lines
2.3 KiB
Diff
81 lines
2.3 KiB
Diff
From bcb1f1a6a5530ecbc4b674e61acbb406592714c6 Mon Sep 17 00:00:00 2001
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From: Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>
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Date: Wed, 19 Sep 2012 21:22:55 -0300
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Subject: [PATCH 082/198] Add fw_path variable (revised)
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This patch makes grub look for its config file on efi where the app was
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found. It was originally written by Matthew Garrett, and adapted to fix the
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"No modules are loaded on grub2 network boot" issue:
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https://bugzilla.redhat.com/show_bug.cgi?id=857936
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---
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grub-core/kern/main.c | 13 ++++++-------
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grub-core/normal/main.c | 25 ++++++++++++++++++++++++-
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2 files changed, 30 insertions(+), 8 deletions(-)
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diff --git a/grub-core/kern/main.c b/grub-core/kern/main.c
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index 9cad0c448..8ab7794c4 100644
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--- a/grub-core/kern/main.c
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+++ b/grub-core/kern/main.c
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@@ -127,16 +127,15 @@ grub_set_prefix_and_root (void)
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grub_machine_get_bootlocation (&fwdevice, &fwpath);
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- if (fwdevice)
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+ if (fwdevice && fwpath)
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{
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- char *cmdpath;
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+ char *fw_path;
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- cmdpath = grub_xasprintf ("(%s)%s", fwdevice, fwpath ? : "");
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- if (cmdpath)
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+ fw_path = grub_xasprintf ("(%s)/%s", fwdevice, fwpath);
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+ if (fw_path)
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{
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- grub_env_set ("cmdpath", cmdpath);
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- grub_env_export ("cmdpath");
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- grub_free (cmdpath);
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+ grub_env_set ("fw_path", fw_path);
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+ grub_free (fw_path);
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}
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}
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diff --git a/grub-core/normal/main.c b/grub-core/normal/main.c
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index 249e19bc7..759c475c4 100644
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--- a/grub-core/normal/main.c
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+++ b/grub-core/normal/main.c
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@@ -338,7 +338,30 @@ grub_cmd_normal (struct grub_command *cmd __attribute__ ((unused)),
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/* Guess the config filename. It is necessary to make CONFIG static,
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so that it won't get broken by longjmp. */
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char *config;
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- const char *prefix;
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+ const char *prefix, *fw_path;
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+
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+ fw_path = grub_env_get ("fw_path");
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+ if (fw_path)
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+ {
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+ config = grub_xasprintf ("%s/grub.cfg", fw_path);
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+ if (config)
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+ {
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+ grub_file_t file;
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+
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+ file = grub_file_open (config);
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+ if (file)
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+ {
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+ grub_file_close (file);
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+ grub_enter_normal_mode (config);
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+ }
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+ else
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+ {
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+ /* Ignore all errors. */
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+ grub_errno = 0;
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+ }
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+ grub_free (config);
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+ }
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+ }
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prefix = grub_env_get ("prefix");
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if (prefix)
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--
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2.14.3
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