diff options
| author | Will Deacon <will@kernel.org> | 2023-05-23 11:18:20 +0100 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2023-06-01 21:34:50 +0000 |
| commit | bc3888a0f4e979ecf9dd8c33a84b8da8cc130790 (patch) | |
| tree | 8e82812248a4ce48682e680402ecc8b85454ae7f /arch/arm64/kvm/pkvm.c | |
| parent | 12bdce4f41197a1a97ba1c711f77d557841e13d9 (diff) | |
KVM: arm64: Allocate pages for hypervisor FF-A mailboxes
The FF-A proxy code needs to allocate its own buffer pair for
communication with EL3 and for forwarding calls from the host at EL1.
Reserve a couple of pages for this purpose and use them to initialise
the hypervisor's FF-A buffer structure.
Co-developed-by: Andrew Walbran <qwandor@google.com>
Signed-off-by: Andrew Walbran <qwandor@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20230523101828.7328-4-will@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'arch/arm64/kvm/pkvm.c')
| -rw-r--r-- | arch/arm64/kvm/pkvm.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c index 6e9ece1ebbe7..994a494703c3 100644 --- a/arch/arm64/kvm/pkvm.c +++ b/arch/arm64/kvm/pkvm.c @@ -78,6 +78,7 @@ void __init kvm_hyp_reserve(void) hyp_mem_pages += host_s2_pgtable_pages(); hyp_mem_pages += hyp_vm_table_pages(); hyp_mem_pages += hyp_vmemmap_pages(STRUCT_HYP_PAGE_SIZE); + hyp_mem_pages += hyp_ffa_proxy_pages(); /* * Try to allocate a PMD-aligned region to reduce TLB pressure once |