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| author | David S. Miller <davem@davemloft.net> | 2009-04-17 04:35:26 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-04-17 04:35:26 +0400 |
| commit | a54bfa40fd16aeb90bc556189221576f746f8567 (patch) | |
| tree | 176bb7a99ffab5f42f0dd4e9671f335be3f3efa0 /drivers/pci/dmar.c | |
| parent | fe957c40ec5e2763b9977c565beab3bde3aaf85b (diff) | |
| parent | 134ffb4cad92a6aa534e55a9be145bca780a32c1 (diff) | |
| download | linux-a54bfa40fd16aeb90bc556189221576f746f8567.tar.xz | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Diffstat (limited to 'drivers/pci/dmar.c')
| -rw-r--r-- | drivers/pci/dmar.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c index 25a00ce4f24d..fa3a11365ec3 100644 --- a/drivers/pci/dmar.c +++ b/drivers/pci/dmar.c @@ -173,12 +173,21 @@ dmar_parse_one_drhd(struct acpi_dmar_header *header) struct dmar_drhd_unit *dmaru; int ret = 0; + drhd = (struct acpi_dmar_hardware_unit *)header; + if (!drhd->address) { + /* Promote an attitude of violence to a BIOS engineer today */ + WARN(1, "Your BIOS is broken; DMAR reported at address zero!\n" + "BIOS vendor: %s; Ver: %s; Product Version: %s\n", + dmi_get_system_info(DMI_BIOS_VENDOR), + dmi_get_system_info(DMI_BIOS_VERSION), + dmi_get_system_info(DMI_PRODUCT_VERSION)); + return -ENODEV; + } dmaru = kzalloc(sizeof(*dmaru), GFP_KERNEL); if (!dmaru) return -ENOMEM; dmaru->hdr = header; - drhd = (struct acpi_dmar_hardware_unit *)header; dmaru->reg_base_addr = drhd->address; dmaru->segment = drhd->segment; dmaru->include_all = drhd->flags & 0x1; /* BIT0: INCLUDE_ALL */ |