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| author | Thomas Huth <thuth@redhat.com> | 2023-08-02 15:57:18 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-08-03 16:06:49 -0400 |
| commit | cc2a08480e19007c05be8fe5b6893e20448954dc (patch) | |
| tree | a612a9b1a63ab9fbb717037001529a601de73f46 | |
| parent | 18f2971ce403008d5e1c2875b483c9d1778143dc (diff) | |
| download | qemu-cc2a08480e19007c05be8fe5b6893e20448954dc.zip qemu-cc2a08480e19007c05be8fe5b6893e20448954dc.tar.gz qemu-cc2a08480e19007c05be8fe5b6893e20448954dc.tar.bz2 | |
hw/i386/intel_iommu: Fix trivial endianness problems
After reading the guest memory with dma_memory_read(), we have
to make sure that we byteswap the little endian data to the host's
byte order.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230802135723.178083-2-thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
| -rw-r--r-- | hw/i386/intel_iommu.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index dcc3340..13fcde8 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -756,6 +756,8 @@ static int vtd_get_pdire_from_pdir_table(dma_addr_t pasid_dir_base, return -VTD_FR_PASID_TABLE_INV; } + pdire->val = le64_to_cpu(pdire->val); + return 0; } @@ -780,6 +782,9 @@ static int vtd_get_pe_in_pasid_leaf_table(IntelIOMMUState *s, pe, entry_size, MEMTXATTRS_UNSPECIFIED)) { return -VTD_FR_PASID_TABLE_INV; } + for (size_t i = 0; i < ARRAY_SIZE(pe->val); i++) { + pe->val[i] = le64_to_cpu(pe->val[i]); + } /* Do translation type check */ if (!vtd_pe_type_check(x86_iommu, pe)) { |