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| author | neel <neel@FreeBSD.org> | 2014-08-14 05:00:45 +0000 |
|---|---|---|
| committer | neel <neel@FreeBSD.org> | 2014-08-14 05:00:45 +0000 |
| commit | 53369652fd9c456d33338f450a0c02cfdc1db689 (patch) | |
| tree | 5566cbafb79adbaf2f048d3a0f72a369e84fcaf1 /sys/amd64/vmm/intel | |
| parent | 844b1fe2e7077d4a5e1e680a1ee4fa970c07ab2b (diff) | |
| download | FreeBSD-src-53369652fd9c456d33338f450a0c02cfdc1db689.zip FreeBSD-src-53369652fd9c456d33338f450a0c02cfdc1db689.tar.gz | |
Use the max guest memory address when creating its iommu domain.
Also, assert that the GPA being mapped in the domain is less than its maxaddr.
Reviewed by: grehan
Pointed out by: Anish Gupta (akgupt3@gmail.com)
Diffstat (limited to 'sys/amd64/vmm/intel')
| -rw-r--r-- | sys/amd64/vmm/intel/vtd.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/amd64/vmm/intel/vtd.c b/sys/amd64/vmm/intel/vtd.c index afd7155..be57aff 100644 --- a/sys/amd64/vmm/intel/vtd.c +++ b/sys/amd64/vmm/intel/vtd.c @@ -448,6 +448,11 @@ vtd_update_mapping(void *arg, vm_paddr_t gpa, vm_paddr_t hpa, uint64_t len, ptpindex = 0; ptpshift = 0; + KASSERT(gpa + len > gpa, ("%s: invalid gpa range %#lx/%#lx", __func__, + gpa, len)); + KASSERT(gpa + len <= dom->maxaddr, ("%s: gpa range %#lx/%#lx beyond " + "domain maxaddr %#lx", __func__, gpa, len, dom->maxaddr)); + if (gpa & PAGE_MASK) panic("vtd_create_mapping: unaligned gpa 0x%0lx", gpa); |
