From: Lu Baolu <baolu.lu@linux.intel.com>
To: Joerg Roedel <joro@8bytes.org>, Steve Wahl <steve.wahl@hpe.com>,
Kevin Tian <kevin.tian@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
Jerry Snitselaar <jsnitsel@redhat.com>,
Mike Travis <mike.travis@hpe.com>,
Dimitri Sivanich <sivanich@hpe.com>,
Russ Anderson <russ.anderson@hpe.com>,
iommu@lists.linux.dev, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, Lu Baolu <baolu.lu@linux.intel.com>
Subject: [PATCH v1 6/6] iommu/vt-d: Make DMAR_UNITS_SUPPORTED default 1024
Date: Sat, 25 Jun 2022 20:52:04 +0800 [thread overview]
Message-ID: <20220625125204.2199437-7-baolu.lu@linux.intel.com> (raw)
In-Reply-To: <20220625125204.2199437-1-baolu.lu@linux.intel.com>
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>
---
include/linux/dmar.h | 6 +-----
1 file changed, 1 insertion(+), 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
--
2.25.1
next prev parent reply other threads:[~2022-06-25 12:56 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-25 12:51 [PATCH v1 0/6] iommu/vt-d: Reset DMAR_UNITS_SUPPORTED Lu Baolu
2022-06-25 12:51 ` [PATCH v1 1/6] iommu/vt-d: Remove unused domain_get_iommu() Lu Baolu
2022-06-30 8:19 ` Tian, Kevin
2022-06-25 12:52 ` [PATCH v1 2/6] iommu/vt-d: Use IDA interface to manage iommu sequence id Lu Baolu
2022-06-30 8:21 ` Tian, Kevin
2022-07-01 1:17 ` Lu Baolu
2022-06-25 12:52 ` [PATCH v1 3/6] iommu/vt-d: Refactor iommu information of each domain Lu Baolu
2022-06-30 8:28 ` Tian, Kevin
2022-07-01 2:35 ` Lu Baolu
2022-06-25 12:52 ` [PATCH v1 4/6] iommu/vt-d: Add VTD_FLAG_IOMMU_PROBED flag Lu Baolu
2022-06-30 8:29 ` Tian, Kevin
2022-07-01 3:13 ` Baolu Lu
2022-07-01 6:09 ` Tian, Kevin
2022-06-25 12:52 ` [PATCH v1 5/6] iommu/vt-d: Remove global g_iommus array Lu Baolu
2022-06-30 8:29 ` Tian, Kevin
2022-06-25 12:52 ` Lu Baolu [this message]
2022-06-30 8:30 ` [PATCH v1 6/6] iommu/vt-d: Make DMAR_UNITS_SUPPORTED default 1024 Tian, Kevin
2022-06-28 12:39 ` [PATCH v1 0/6] iommu/vt-d: Reset DMAR_UNITS_SUPPORTED Baolu Lu
2022-07-06 18:55 ` Steve Wahl
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