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| author | Dmitry Torokhov <dtor@insightbb.com> | 2006-09-19 01:56:44 -0400 |
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| committer | Dmitry Torokhov <dtor@insightbb.com> | 2006-09-19 01:56:44 -0400 |
| commit | 0612ec48762bf8712db1925b2e67246d2237ebab (patch) | |
| tree | 01b0d69c9c9915015c0f23ad4263646dd5413e99 /arch/i386/kernel/machine_kexec.c | |
| parent | 4263cf0fac28122c8381b6f4f9441a43cd93c81f (diff) | |
| parent | 47a5c6fa0e204a2b63309c648bb2fde36836c826 (diff) | |
| download | kernel-crypto-0612ec48762bf8712db1925b2e67246d2237ebab.tar.gz kernel-crypto-0612ec48762bf8712db1925b2e67246d2237ebab.tar.xz kernel-crypto-0612ec48762bf8712db1925b2e67246d2237ebab.zip | |
Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/i386/kernel/machine_kexec.c')
| -rw-r--r-- | arch/i386/kernel/machine_kexec.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/arch/i386/kernel/machine_kexec.c b/arch/i386/kernel/machine_kexec.c index 511abe52a94..6b1ae6ba76f 100644 --- a/arch/i386/kernel/machine_kexec.c +++ b/arch/i386/kernel/machine_kexec.c @@ -189,14 +189,11 @@ NORET_TYPE void machine_kexec(struct kimage *image) memcpy((void *)reboot_code_buffer, relocate_new_kernel, relocate_new_kernel_size); - /* The segment registers are funny things, they are - * automatically loaded from a table, in memory wherever you - * set them to a specific selector, but this table is never - * accessed again you set the segment to a different selector. - * - * The more common model is are caches where the behide - * the scenes work is done, but is also dropped at arbitrary - * times. + /* The segment registers are funny things, they have both a + * visible and an invisible part. Whenever the visible part is + * set to a specific selector, the invisible part is loaded + * with from a table in memory. At no other time is the + * descriptor table in memory accessed. * * I take advantage of this here by force loading the * segments, before I zap the gdt with an invalid value. |