diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2015-05-04 09:25:05 +0800 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-05-11 07:07:30 -0400 |
| commit | 02f88a7f2ae921317c91f629d61c39e107b9af23 (patch) | |
| tree | 570f26ae28c546f1cb3a6813a7762d5552b011e8 /include/linux | |
| parent | 72d391fefcd4729206d2e17f557e7a918de9b6d8 (diff) | |
kvm: add a memslot flag for incoherent memory regions
commit 1050dcda3052912984b26fb6d2695a3f41792000 upstream.
Memory regions may be incoherent with the caches, typically when the
guest has mapped a host system RAM backed memory region as uncached.
Add a flag KVM_MEMSLOT_INCOHERENT so that we can tag these memslots
and handle them appropriately when mapping them.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index a6059bdf7b03..e4d8f705fecd 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -43,6 +43,7 @@ * include/linux/kvm_h. */ #define KVM_MEMSLOT_INVALID (1UL << 16) +#define KVM_MEMSLOT_INCOHERENT (1UL << 17) /* Two fragments for cross MMIO pages. */ #define KVM_MAX_MMIO_FRAGMENTS 2 |