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author | Andrew Turner <andrew@FreeBSD.org> | 2020-05-18 15:05:59 +0000 |
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committer | Andrew Turner <andrew@FreeBSD.org> | 2020-05-18 15:05:59 +0000 |
commit | bc71118183ddd2493c6c8ce4511da3a2e8368804 (patch) | |
tree | 1d30d9f9d705df8f4a46138810938f50dccd03a6 /usr.sbin | |
parent | e90337e48fca985d6eea95989f05476f35b5b93c (diff) | |
download | src-bc71118183ddd2493c6c8ce4511da3a2e8368804.tar.gz src-bc71118183ddd2493c6c8ce4511da3a2e8368804.zip |
Allow the FACS and XFACS to be zero in acpidump.
These are allowed to be zero when the hardware reduced APCI flag is set
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D23207
Notes
Notes:
svn path=/head/; revision=361216
Diffstat (limited to 'usr.sbin')
-rw-r--r-- | usr.sbin/acpi/acpidump/acpi.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/usr.sbin/acpi/acpidump/acpi.c b/usr.sbin/acpi/acpidump/acpi.c index 578a5886d500..bc8d693389f7 100644 --- a/usr.sbin/acpi/acpidump/acpi.c +++ b/usr.sbin/acpi/acpidump/acpi.c @@ -245,6 +245,7 @@ acpi_handle_fadt(ACPI_TABLE_HEADER *sdp) ACPI_TABLE_HEADER *dsdp; ACPI_TABLE_FACS *facs; ACPI_TABLE_FADT *fadt; + vm_offset_t addr; int fadt_revision; fadt = (ACPI_TABLE_FADT *)sdp; @@ -252,12 +253,17 @@ acpi_handle_fadt(ACPI_TABLE_HEADER *sdp) fadt_revision = acpi_get_fadt_revision(fadt); if (fadt_revision == 1) - facs = (ACPI_TABLE_FACS *)acpi_map_sdt(fadt->Facs); + addr = fadt->Facs; else - facs = (ACPI_TABLE_FACS *)acpi_map_sdt(fadt->XFacs); - if (memcmp(facs->Signature, ACPI_SIG_FACS, 4) != 0 || facs->Length < 64) - errx(1, "FACS is corrupt"); - acpi_print_facs(facs); + addr = fadt->XFacs; + if (addr != 0) { + facs = (ACPI_TABLE_FACS *)acpi_map_sdt(addr); + + if (memcmp(facs->Signature, ACPI_SIG_FACS, 4) != 0 || + facs->Length < 64) + errx(1, "FACS is corrupt"); + acpi_print_facs(facs); + } if (fadt_revision == 1) dsdp = (ACPI_TABLE_HEADER *)acpi_map_sdt(fadt->Dsdt); |