diff options
| author | Alexander Potapenko <glider@google.com> | 2024-09-10 12:18:15 +0200 |
|---|---|---|
| committer | Alexander Potapenko <glider@google.com> | 2024-09-11 06:36:15 +0000 |
| commit | ef862d49a99969e5139cddfd317b9883cdd36a14 (patch) | |
| tree | 677880b3215489be0f7bda9c6750a26c6c1ada0a /executor/kvm.h | |
| parent | 8ab55d0eede313b6ecc94ec419a490bbe92d27de (diff) | |
executor: arm64: reserve a dedicated dirty page region
To ease fuzzing the dirty ring, explicitly reserve two pages with
the KVM_MEM_LOG_DIRTY_PAGES flag at known address.
Diffstat (limited to 'executor/kvm.h')
| -rw-r--r-- | executor/kvm.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/executor/kvm.h b/executor/kvm.h index 32fda309d..47348e3d4 100644 --- a/executor/kvm.h +++ b/executor/kvm.h @@ -78,11 +78,13 @@ // GICv3 distributor/redistributor addresses. #define ARM64_ADDR_GICD_BASE 0x08000000 -#define ARM64_ADDR_GICR_BASE 0x080A0000 +#define ARM64_ADDR_GICR_BASE 0x080a0000 // Write to this page to trigger a page fault and stop KVM_RUN. #define ARM64_ADDR_EXIT 0xdddd0000 // Dedicated address within the exit page for the uexit command. #define ARM64_ADDR_UEXIT (ARM64_ADDR_EXIT + 256) +// Two writable pages with KVM_MEM_LOG_DIRTY_PAGES explicitly set. +#define ARM64_ADDR_DIRTY_PAGES 0xdddd1000 #define ARM64_ADDR_USER_CODE 0xeeee0000 #define ARM64_ADDR_EXECUTOR_CODE 0xeeee8000 #define ARM64_ADDR_SCRATCH_CODE 0xeeef0000 |