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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2022-07-12 03:09:08 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-07-15 11:21:43 +0300 |
| commit | 25357900f4e67094dd09b7dcb8a5f47c3f5a159d (patch) | |
| tree | d12be87418277e7abe864fdbcb45a76802a1dfe0 /include/linux/dmar.h | |
| parent | bdb46d175872af56d3bffe361f21be2b87784039 (diff) | |
| download | linux-25357900f4e67094dd09b7dcb8a5f47c3f5a159d.tar.xz | |
iommu/vt-d: Make DMAR_UNITS_SUPPORTED default 1024
If the available hardware exceeds DMAR_UNITS_SUPPORTED (previously set
to MAX_IO_APICS, or 128), it causes these messages: "DMAR: Failed to
allocate seq_id", "DMAR: Parse DMAR table failure.", and "x2apic: IRQ
remapping doesn't support X2APIC mode x2apic disabled"; and the system
fails to boot properly.
To support up to 64 sockets with 10 DMAR units each (640), make the
value of DMAR_UNITS_SUPPORTED default 1024.
Signed-off-by: Steve Wahl<steve.wahl@hpe.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Link: https://lore.kernel.org/linux-iommu/20220615183650.32075-1-steve.wahl@hpe.com/
Link: https://lore.kernel.org/r/20220702015610.2849494-7-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/dmar.h')
| -rw-r--r-- | include/linux/dmar.h | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/include/linux/dmar.h b/include/linux/dmar.h index cbd714a198a0..d81a51978d01 100644 --- a/include/linux/dmar.h +++ b/include/linux/dmar.h @@ -18,11 +18,7 @@ struct acpi_dmar_header; -#ifdef CONFIG_X86 -# define DMAR_UNITS_SUPPORTED MAX_IO_APICS -#else -# define DMAR_UNITS_SUPPORTED 64 -#endif +#define DMAR_UNITS_SUPPORTED 1024 /* DMAR Flags */ #define DMAR_INTR_REMAP 0x1 |