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| author | Prasad J Pandit <pjp@fedoraproject.org> | 2016-12-02 16:46:26 +0530 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-12-16 01:14:38 +0200 |
| commit | d9429b84af2302b6e28bec3c52710cf67eda3cee (patch) | |
| tree | bd2c363db117e20496965501db75c137cf523ffb /qemu-timer.c | |
| parent | e10e798c85c2331dab338b6a01835ebde81136e5 (diff) | |
| download | qemu-d9429b84af2302b6e28bec3c52710cf67eda3cee.zip qemu-d9429b84af2302b6e28bec3c52710cf67eda3cee.tar.gz qemu-d9429b84af2302b6e28bec3c52710cf67eda3cee.tar.bz2 | |
i386: amd_iommu: fix MMIO register count and access
IOMMU MMIO registers are divided in two groups by their offsets.
Low offsets(<0x2000) registers are grouped into 'amdvi_mmio_low'
table and higher offsets(>=0x2000) registers are grouped into
'amdvi_mmio_high' table. No of registers in each table is given
by macro 'AMDVI_MMIO_REGS_LOW' and 'AMDVI_MMIO_REGS_HIGH' resp.
Values of these two macros were swapped, resulting in an OOB
access when reading 'amdvi_mmio_high' table. Correct these two
macros. Also read from 'amdvi_mmio_low' table for lower address.
Reported-by: Azureyang <azureyang@tencent.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'qemu-timer.c')
0 files changed, 0 insertions, 0 deletions