diff options
| author | Sean Christopherson <[email protected]> | 2024-07-26 16:51:10 -0700 |
|---|---|---|
| committer | Marc Zyngier <[email protected]> | 2024-08-13 19:28:00 +0100 |
| commit | ae41d7dbaeb4f79134136cd65ad7015cf9ccf78a (patch) | |
| tree | 536a852ffd460c670911c9f83a412275e55d2bb7 /tools/testing/selftests/bpf/progs/test_autoload.c | |
| parent | 38753cbc4dca431d4354319c7481f6bd1a212baf (diff) | |
KVM: arm64: Release pfn, i.e. put page, if copying MTE tags hits ZONE_DEVICE
Put the page reference acquired by gfn_to_pfn_prot() if
kvm_vm_ioctl_mte_copy_tags() runs into ZONE_DEVICE memory. KVM's less-
than-stellar heuristics for dealing with pfn-mapped memory means that KVM
can get a page reference to ZONE_DEVICE memory.
Fixes: f0376edb1ddc ("KVM: arm64: Add ioctl to fetch/store tags in a guest")
Signed-off-by: Sean Christopherson <[email protected]>
Reviewed-by: Steven Price <[email protected]>
Reviewed-by: Catalin Marinas <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Marc Zyngier <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_autoload.c')
0 files changed, 0 insertions, 0 deletions