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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-14 08:59:06 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-14 08:59:06 +0200 |
| commit | db4e54aefdfe03f1aea82bb65d61f25c3ea035d7 (patch) | |
| tree | 1a4b30dc2b6c8ac3173ff686b36f49dee5f0bd73 /arch/x86/realmode/init.c | |
| parent | nvmem: eeprom: at25: fram discovery simplification (diff) | |
| parent | Linux 5.13-rc6 (diff) | |
| download | linux-db4e54aefdfe03f1aea82bb65d61f25c3ea035d7.tar.xz linux-db4e54aefdfe03f1aea82bb65d61f25c3ea035d7.zip | |
Merge tag 'v5.13-rc6' into char-misc-next
We need the fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/realmode/init.c')
| -rw-r--r-- | arch/x86/realmode/init.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c index 2e1c1bec0f9e..6534c92d0f83 100644 --- a/arch/x86/realmode/init.c +++ b/arch/x86/realmode/init.c @@ -29,14 +29,16 @@ void __init reserve_real_mode(void) /* Has to be under 1M so we can execute real-mode AP code. */ mem = memblock_find_in_range(0, 1<<20, size, PAGE_SIZE); - if (!mem) { + if (!mem) pr_info("No sub-1M memory is available for the trampoline\n"); - return; - } + else + set_real_mode_mem(mem); - memblock_reserve(mem, size); - set_real_mode_mem(mem); - crash_reserve_low_1M(); + /* + * Unconditionally reserve the entire fisrt 1M, see comment in + * setup_arch(). + */ + memblock_reserve(0, SZ_1M); } static void sme_sev_setup_real_mode(struct trampoline_header *th) |