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| author | Alexander Potapenko <glider@google.com> | 2024-11-18 11:23:01 +0100 |
|---|---|---|
| committer | Alexander Potapenko <glider@google.com> | 2024-11-26 11:12:47 +0000 |
| commit | 3bbc60604366c324295d54a7d93dd7d258a0e2aa (patch) | |
| tree | 7f2598945acc42bd3f2b3a901decc9260307fc5a /executor/common_kvm_arm64.h | |
| parent | 26cf63663eb59ad18dd3d635de7698a91ba24f2a (diff) | |
executor: arm64: allocate memory for ITS tables on the host side
Diffstat (limited to 'executor/common_kvm_arm64.h')
| -rw-r--r-- | executor/common_kvm_arm64.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/executor/common_kvm_arm64.h b/executor/common_kvm_arm64.h index bb47c88f4..bc809a152 100644 --- a/executor/common_kvm_arm64.h +++ b/executor/common_kvm_arm64.h @@ -104,6 +104,12 @@ static void setup_vm(int vmfd, void* host_mem, void** text_slot) // Map the remaining pages at address 0. next = alloc_guest_mem(&allocator, allocator.size); vm_set_user_memory_region(vmfd, slot++, 0, 0, next.size, (uintptr_t)next.addr); + + // Allocate memory for the ITS tables. + // TODO(glider): leak this memory for now, this shouldn't be a problem for the short-living executor process. + int its_size = SZ_64K * (4 + /*num_cpus*/ 4 + /*num_devices*/ 16); + void* its = mmap(NULL, its_size, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0); + vm_set_user_memory_region(vmfd, slot++, 0, ARM64_ADDR_ITS_TABLES, its_size, (uintptr_t)its); } #endif |