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hv: add ACPI support for pre-launched VMs

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Statically define the per vm RSDP/XSDT/MADT ACPI template tables in vacpi.c,
RSDP/XSDT tables are copied to guest physical memory after checksum is
calculated. For MADT table, first fix up process id/lapic id in its lapic
subtable, then the MADT table's checksum is calculated before it is copies to
guest physical memory.

Add 8-bit checksum function in util.h

Tracked-On: #3601
Signed-off-by: dongshen <dongsheng.x.zhang@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
dongshen
2019-08-21 19:37:33 -07:00
committed by wenlingz
parent 96b422ce9d
commit b447ce3d86
7 changed files with 191 additions and 4 deletions
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8
hypervisor/include/lib/util.h
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@@ -46,4 +46,12 @@ static inline uint8_t calculate_sum8(const void *buf, uint32_t length)
return sum;
}
/**
* @pre buf != NULL
*/
static inline uint8_t calculate_checksum8(const void *buf, uint32_t len)
{
return (uint8_t)(0x100U - calculate_sum8(buf, len));
}
#endif /* UTIL_H */