diff options
| author | Wei Huang <wei.huang2@amd.com> | 2020-04-17 23:28:45 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-06-10 12:10:46 -0400 |
| commit | 2356ff8500f3aec43070fcfa61a624ec36a8c6b4 (patch) | |
| tree | 152af0549abcb3fb57826f2ceddae744bfae970c /hw | |
| parent | bbad173c7478269d2f4f67c81bafb1711f3cc815 (diff) | |
hw/i386/amd_iommu: Fix the reserved bits definition of IOMMU commands
Many reserved bits of amd_iommu commands are defined incorrectly in QEMU.
Because of it, QEMU incorrectly injects lots of illegal commands into guest
VM's IOMMU event log.
Signed-off-by: Wei Huang <wei.huang2@amd.com>
Message-Id: <20200418042845.596457-1-wei.huang2@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/i386/amd_iommu.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/hw/i386/amd_iommu.c b/hw/i386/amd_iommu.c index fd75cae024..4346060e62 100644 --- a/hw/i386/amd_iommu.c +++ b/hw/i386/amd_iommu.c @@ -370,7 +370,7 @@ static void amdvi_completion_wait(AMDVIState *s, uint64_t *cmd) hwaddr addr = cpu_to_le64(extract64(cmd[0], 3, 49)) << 3; uint64_t data = cpu_to_le64(cmd[1]); - if (extract64(cmd[0], 51, 8)) { + if (extract64(cmd[0], 52, 8)) { amdvi_log_illegalcom_error(s, extract64(cmd[0], 60, 4), s->cmdbuf + s->cmdbuf_head); } @@ -395,7 +395,7 @@ static void amdvi_inval_devtab_entry(AMDVIState *s, uint64_t *cmd) uint16_t devid = cpu_to_le16((uint16_t)extract64(cmd[0], 0, 16)); /* This command should invalidate internal caches of which there isn't */ - if (extract64(cmd[0], 15, 16) || cmd[1]) { + if (extract64(cmd[0], 16, 44) || cmd[1]) { amdvi_log_illegalcom_error(s, extract64(cmd[0], 60, 4), s->cmdbuf + s->cmdbuf_head); } @@ -405,9 +405,9 @@ static void amdvi_inval_devtab_entry(AMDVIState *s, uint64_t *cmd) static void amdvi_complete_ppr(AMDVIState *s, uint64_t *cmd) { - if (extract64(cmd[0], 15, 16) || extract64(cmd[0], 19, 8) || + if (extract64(cmd[0], 16, 16) || extract64(cmd[0], 52, 8) || extract64(cmd[1], 0, 2) || extract64(cmd[1], 3, 29) - || extract64(cmd[1], 47, 16)) { + || extract64(cmd[1], 48, 16)) { amdvi_log_illegalcom_error(s, extract64(cmd[0], 60, 4), s->cmdbuf + s->cmdbuf_head); } @@ -438,8 +438,8 @@ static void amdvi_inval_pages(AMDVIState *s, uint64_t *cmd) { uint16_t domid = cpu_to_le16((uint16_t)extract64(cmd[0], 32, 16)); - if (extract64(cmd[0], 20, 12) || extract64(cmd[0], 16, 12) || - extract64(cmd[0], 3, 10)) { + if (extract64(cmd[0], 20, 12) || extract64(cmd[0], 48, 12) || + extract64(cmd[1], 3, 9)) { amdvi_log_illegalcom_error(s, extract64(cmd[0], 60, 4), s->cmdbuf + s->cmdbuf_head); } @@ -451,7 +451,7 @@ static void amdvi_inval_pages(AMDVIState *s, uint64_t *cmd) static void amdvi_prefetch_pages(AMDVIState *s, uint64_t *cmd) { - if (extract64(cmd[0], 16, 8) || extract64(cmd[0], 20, 8) || + if (extract64(cmd[0], 16, 8) || extract64(cmd[0], 52, 8) || extract64(cmd[1], 1, 1) || extract64(cmd[1], 3, 1) || extract64(cmd[1], 5, 7)) { amdvi_log_illegalcom_error(s, extract64(cmd[0], 60, 4), @@ -463,7 +463,7 @@ static void amdvi_prefetch_pages(AMDVIState *s, uint64_t *cmd) static void amdvi_inval_inttable(AMDVIState *s, uint64_t *cmd) { - if (extract64(cmd[0], 16, 16) || cmd[1]) { + if (extract64(cmd[0], 16, 44) || cmd[1]) { amdvi_log_illegalcom_error(s, extract64(cmd[0], 60, 4), s->cmdbuf + s->cmdbuf_head); return; @@ -479,7 +479,8 @@ static void iommu_inval_iotlb(AMDVIState *s, uint64_t *cmd) { uint16_t devid = extract64(cmd[0], 0, 16); - if (extract64(cmd[1], 1, 1) || extract64(cmd[1], 3, 9)) { + if (extract64(cmd[1], 1, 1) || extract64(cmd[1], 3, 1) || + extract64(cmd[1], 6, 6)) { amdvi_log_illegalcom_error(s, extract64(cmd[0], 60, 4), s->cmdbuf + s->cmdbuf_head); return; |