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[Qemu-ppc] [PATCH 11/40] pseries: Don't allow TCE (iommu) tables to be r
From: |
Alexander Graf |
Subject: |
[Qemu-ppc] [PATCH 11/40] pseries: Don't allow TCE (iommu) tables to be registered with duplicate LIOBNs |
Date: |
Fri, 14 Dec 2012 13:13:27 +0100 |
From: David Gibson <address@hidden>
The PAPR specification requires that every bus or device mediated by the
IOMMU have a unique Logical IO Bus Number (LIOBN). This patch adds a check
to enforce this, which will help catch errors in configuration earlier.
Signed-off-by: David Gibson <address@hidden>
Signed-off-by: Alexander Graf <address@hidden>
---
hw/spapr_iommu.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/hw/spapr_iommu.c b/hw/spapr_iommu.c
index 02d78cc..3011b25 100644
--- a/hw/spapr_iommu.c
+++ b/hw/spapr_iommu.c
@@ -120,6 +120,12 @@ DMAContext *spapr_tce_new_dma_context(uint32_t liobn,
size_t window_size)
{
sPAPRTCETable *tcet;
+ if (spapr_tce_find_by_liobn(liobn)) {
+ fprintf(stderr, "Attempted to create TCE table with duplicate"
+ " LIOBN 0x%x\n", liobn);
+ return NULL;
+ }
+
if (!window_size) {
return NULL;
}
--
1.6.0.2
- [Qemu-ppc] [PULL 00/40] ppc patch queue 2012-12-14, Alexander Graf, 2012/12/14
- [Qemu-ppc] [PATCH 18/40] openpic: merge mpic and openpic timer handling, Alexander Graf, 2012/12/14
- [Qemu-ppc] [PATCH 11/40] pseries: Don't allow TCE (iommu) tables to be registered with duplicate LIOBNs,
Alexander Graf <=
- [Qemu-ppc] [PATCH 19/40] openpic: combine openpic and mpic reset functions, Alexander Graf, 2012/12/14
- [Qemu-ppc] [PATCH 21/40] openpic: remove unused type variable, Alexander Graf, 2012/12/14
- [Qemu-ppc] [PATCH 22/40] openpic: convert simple reg operations to builtin bitops, Alexander Graf, 2012/12/14
- [Qemu-ppc] [PATCH 14/40] openpic: update to proper memory api, Alexander Graf, 2012/12/14
- [Qemu-ppc] [PATCH 04/40] pseries: Allow RTAS tokens without a qemu handler, Alexander Graf, 2012/12/14
- [Qemu-ppc] [PATCH 26/40] openpic: make brr1 model specific, Alexander Graf, 2012/12/14
- [Qemu-ppc] [PATCH 40/40] pseries: Increase default NVRAM size, Alexander Graf, 2012/12/14
- [Qemu-ppc] [PATCH 23/40] openpic: rename openpic_t to OpenPICState, Alexander Graf, 2012/12/14
- [Qemu-ppc] [PATCH 35/40] PPC: E500: Generate dt pci irq map dynamically, Alexander Graf, 2012/12/14
- [Qemu-ppc] [PATCH 08/40] pseries: Update SLOF for NVRAM support, Alexander Graf, 2012/12/14