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hv: SMBIOS: add check before SMBIOS probing

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The SMBIOS passthrough is supposed to work under UEFI environment.
Previous patches assumes UEFI environment but it may cause problems on
some platforms. This patch adds checking before probing SMBIOS table to
avoid this problem.

Tracked-On: #6345
Signed-off-by: Yifan Liu <yifan1.liu@intel.com>
This commit is contained in:
Yifan Liu 2021-08-02 14:00:21 +08:00 committed by wenlingz
parent 89c25b008a
commit 8cb18fb6fd
1 changed files with 5 additions and 2 deletions
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7
hypervisor/quirks/smbios.c
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@ -13,6 +13,7 @@
#include <asm/guest/ept.h>
#include <acrn_common.h>
#include <debug/logmsg.h>
#include <boot.h>
#define SMBIOS_TABLE_GUID {0xeb9d2d31, 0x2d88, 0x11d3, {0x9a,0x16,0x00,0x90,0x27,0x3f,0xc1,0x4d}}
#define SMBIOS3_TABLE_GUID {0xf2fd1544, 0x9794, 0x4a2c, {0x99,0x2e,0xe5,0xbb,0xcf,0x20,0xe3,0x94}}
@ -212,7 +213,9 @@ void try_smbios_passthrough(struct acrn_vm *vm, struct acrn_boot_info *abi)
{
/* TODO: Add config and guest flag to disable it by default */
if (is_prelaunched_vm(vm)) {
smbios_table_probe(abi);
(void)copy_smbios_to_guest(vm);
if (boot_from_uefi(abi)) {
smbios_table_probe(abi);
(void)copy_smbios_to_guest(vm);
}
}
}