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bhyve: add E820 dump function
For debugging purposes it is helpful to dump the E820 table. Reviewed by: markj MFC after: 1 week Sponsored by: Beckhoff Automation GmbH & Co. KG Differential Revision: https://reviews.freebsd.org/D39549
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@ -70,6 +70,41 @@ e820_element_alloc(uint64_t base, uint64_t end, enum e820_memory_type type)
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return (element);
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}
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static const char *
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e820_get_type_name(const enum e820_memory_type type)
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{
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switch (type) {
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case E820_TYPE_MEMORY:
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return ("RAM");
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case E820_TYPE_RESERVED:
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return ("Reserved");
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case E820_TYPE_ACPI:
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return ("ACPI");
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case E820_TYPE_NVS:
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return ("NVS");
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default:
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return ("Unknown");
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}
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}
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void
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e820_dump_table(void)
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{
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struct e820_element *element;
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uint64_t i;
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fprintf(stderr, "E820 map:\n");
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i = 0;
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TAILQ_FOREACH(element, &e820_table, chain) {
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fprintf(stderr, " (%4lu) [%16lx, %16lx] %s\n", i,
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element->base, element->end,
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e820_get_type_name(element->type));
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++i;
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}
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}
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struct qemu_fwcfg_item *
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e820_get_fwcfg_item(void)
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{
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@ -40,5 +40,6 @@ struct e820_entry {
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uint64_t e820_alloc(const uint64_t address, const uint64_t length,
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const uint64_t alignment, const enum e820_memory_type type,
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const enum e820_allocation_strategy strategy);
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void e820_dump_table(void);
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struct qemu_fwcfg_item *e820_get_fwcfg_item(void);
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int e820_init(struct vmctx *const ctx);
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