diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/intel-iommu.c | 2 | ||||
| -rw-r--r-- | drivers/pci/intr_remapping.c | 20 |
2 files changed, 21 insertions, 1 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index b0de5794718..c3ceebb5be8 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -236,7 +236,7 @@ static inline u64 dma_pte_addr(struct dma_pte *pte) return pte->val & VTD_PAGE_MASK; #else /* Must have a full atomic 64-bit read */ - return __cmpxchg64(pte, 0ULL, 0ULL) & VTD_PAGE_MASK; + return __cmpxchg64(&pte->val, 0ULL, 0ULL) & VTD_PAGE_MASK; #endif } diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c index 1694a0e2845..fd1d2867cdc 100644 --- a/drivers/pci/intr_remapping.c +++ b/drivers/pci/intr_remapping.c @@ -21,6 +21,8 @@ static int ir_ioapic_num, ir_hpet_num; int intr_remapping_enabled; static int disable_intremap; +static int disable_sourceid_checking; + static __init int setup_nointremap(char *str) { disable_intremap = 1; @@ -28,6 +30,22 @@ static __init int setup_nointremap(char *str) } early_param("nointremap", setup_nointremap); +static __init int setup_intremap(char *str) +{ + if (!str) + return -EINVAL; + + if (!strncmp(str, "on", 2)) + disable_intremap = 0; + else if (!strncmp(str, "off", 3)) + disable_intremap = 1; + else if (!strncmp(str, "nosid", 5)) + disable_sourceid_checking = 1; + + return 0; +} +early_param("intremap", setup_intremap); + struct irq_2_iommu { struct intel_iommu *iommu; u16 irte_index; @@ -453,6 +471,8 @@ int free_irte(int irq) static void set_irte_sid(struct irte *irte, unsigned int svt, unsigned int sq, unsigned int sid) { + if (disable_sourceid_checking) + svt = SVT_NO_VERIFY; irte->svt = svt; irte->sq = sq; irte->sid = sid; |