Re: [PATCH v2 4/8] crash_core: add generic function to do reservation
From: Baoquan He <hidden>
Date: 2023-09-01 10:09:50
Also in:
kexec, lkml
On 08/31/23 at 11:23am, Leizhen (ThunderTown) wrote: ......
quoted
+void __init reserve_crashkernel_generic(char *cmdline, + unsigned long long crash_size, + unsigned long long crash_base, + unsigned long long crash_low_size, + bool high) +{ + unsigned long long search_end = CRASH_ADDR_LOW_MAX, search_base = 0; + bool fixed_base = false; + + /* User specifies base address explicitly. */ + if (crash_base) { + fixed_base = true; + search_base = crash_base; + search_end = crash_base + crash_size; + } + + if (high) {It might be a little clearer to use "else if (high) {"
Makes sense, will update.
quoted
+ search_base = CRASH_ADDR_LOW_MAX; + search_end = CRASH_ADDR_HIGH_MAX; + } + +retry: + crash_base = memblock_phys_alloc_range(crash_size, CRASH_ALIGN, + search_base, search_end);
...... _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel