Messages in this thread | | | Date | Tue, 11 Jan 2022 09:06:00 -0600 | Subject | Re: [PATCH v19 05/13] x86/setup: Add and use CRASH_BASE_ALIGN | From | john.p.donnelly@oracle ... |
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On 12/28/21 7:26 AM, Zhen Lei wrote: > Add macro CRASH_BASE_ALIGN to indicate the alignment for crash kernel > fixed region, in preparation for making partial implementation of > reserve_crashkernel[_low]() generic. > > Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
> Acked-by: John Donnelly <john.p.donnelly@oracle.com>
> --- > arch/x86/kernel/setup.c | 7 +++++-- > 1 file changed, 5 insertions(+), 2 deletions(-) > > diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c > index 93d78aae1937db3..cb7f237a2ae0dfa 100644 > --- a/arch/x86/kernel/setup.c > +++ b/arch/x86/kernel/setup.c > @@ -392,9 +392,12 @@ static void __init memblock_x86_reserve_range_setup_data(void) > > #ifdef CONFIG_KEXEC_CORE > > -/* 16M alignment for crash kernel regions */ > +/* alignment for crash kernel dynamic regions */ > #define CRASH_ALIGN SZ_16M > > +/* alignment for crash kernel fixed region */ > +#define CRASH_BASE_ALIGN SZ_1M > + > /* > * Keep the crash kernel below this limit. > * > @@ -509,7 +512,7 @@ static void __init reserve_crashkernel(void) > } else { > unsigned long long start; > > - start = memblock_phys_alloc_range(crash_size, SZ_1M, crash_base, > + start = memblock_phys_alloc_range(crash_size, CRASH_BASE_ALIGN, crash_base, > crash_base + crash_size); > if (start != crash_base) { > pr_info("crashkernel reservation failed - memory is in use.\n");
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