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From 0a94e5bfd2a050f266e897d930914428ff92d1a8 Mon Sep 17 00:00:00 2001
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Message-Id: <0a94e5bfd2a050f266e897d930914428ff92d1a8.1429703426.git.panand@redhat.com>
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de80c6 |
In-Reply-To: <de1db775d6e9b51f014442677863b57b8566c510.1429703426.git.panand@redhat.com>
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de80c6 |
References: <de1db775d6e9b51f014442677863b57b8566c510.1429703426.git.panand@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
de80c6 |
From: Pratyush Anand <panand@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
de80c6 |
Date: Fri, 17 Apr 2015 10:54:55 -0700
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de80c6 |
Subject: [PATCH 03/15] arm64: Add support for --reuse-cmdline option
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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de80c6 |
Signed-off-by: Pratyush Anand <panand@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
de80c6 |
Signed-off-by: Geoff Levand <geoff@infradead.org>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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---
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kexec/arch/arm64/include/arch/options.h | 7 +++++--
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kexec/arch/arm64/kexec-arm64.c | 8 +++++++-
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2 files changed, 12 insertions(+), 3 deletions(-)
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diff --git a/kexec/arch/arm64/include/arch/options.h b/kexec/arch/arm64/include/arch/options.h
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
de80c6 |
index 51afc5f1f6f2..903b4a1fbd7f 100644
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de80c6 |
--- a/kexec/arch/arm64/include/arch/options.h
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
de80c6 |
+++ b/kexec/arch/arm64/include/arch/options.h
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@@ -6,7 +6,8 @@
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#define OPT_INITRD ((OPT_MAX)+2)
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#define OPT_LITE ((OPT_MAX)+3)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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#define OPT_PORT ((OPT_MAX)+4)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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-#define OPT_ARCH_MAX ((OPT_MAX)+5)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
de80c6 |
+#define OPT_REUSE_CMDLINE ((OPT_MAX+5))
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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+#define OPT_ARCH_MAX ((OPT_MAX)+6)
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de80c6 |
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#define KEXEC_ARCH_OPTIONS \
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KEXEC_OPTIONS \
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@@ -17,6 +18,7 @@
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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{ "lite", 0, NULL, OPT_LITE }, \
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{ "port", 1, NULL, OPT_PORT }, \
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{ "ramdisk", 1, NULL, OPT_INITRD }, \
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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+ { "reuse-cmdline", 0, NULL, OPT_REUSE_CMDLINE }, \
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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#define KEXEC_ARCH_OPT_STR KEXEC_OPT_STR /* Only accept long arch options. */
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#define KEXEC_ALL_OPTIONS KEXEC_ARCH_OPTIONS
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@@ -29,7 +31,8 @@ static const char arm64_opts_usage[] __attribute__ ((unused)) =
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" --initrd=FILE Use FILE as the kernel initial ramdisk.\n"
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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" --lite Fast reboot, no memory integrity checks - currently NOT SUPPORTED.\n");
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" --port=ADDRESS Purgatory output to port ADDRESS.\n"
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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-" --ramdisk=FILE Use FILE as the kernel initial ramdisk.\n";
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+" --ramdisk=FILE Use FILE as the kernel initial ramdisk.\n"
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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+" --reuse-cmdline Use command line arg of primary kernel.\n";
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struct arm64_opts {
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const char *command_line;
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diff --git a/kexec/arch/arm64/kexec-arm64.c b/kexec/arch/arm64/kexec-arm64.c
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index 0860810b6e86..22d70244f8db 100644
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--- a/kexec/arch/arm64/kexec-arm64.c
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+++ b/kexec/arch/arm64/kexec-arm64.c
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@@ -75,13 +75,18 @@ int arch_process_options(int argc, char **argv)
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{ 0 }
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};
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int opt;
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+ const char *append = NULL;
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+ char *tmp_cmdline = NULL;
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for (opt = 0; opt != -1; ) {
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opt = getopt_long(argc, argv, short_options, options, 0);
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switch (opt) {
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case OPT_APPEND:
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- arm64_opts.command_line = optarg;
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+ append = optarg;
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+ break;
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+ case OPT_REUSE_CMDLINE:
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+ tmp_cmdline = get_command_line();
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break;
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case OPT_DTB:
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arm64_opts.dtb = optarg;
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@@ -101,6 +106,7 @@ int arch_process_options(int argc, char **argv)
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}
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}
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+ arm64_opts.command_line = concat_cmdline(tmp_cmdline, append);
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kexec_debug = 1; // FIXME: for debugging only.
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dbgprintf("%s:%d: command_line: %s\n", __func__, __LINE__,
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--
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2.1.0
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