3 Commits

Author	SHA1	Message	Date
Andrew Walbran	3280f5f456	Load pvmfw as pVM firmware rather than bootloader. ... Using the old memory layout for now. Bug: 223166344 Test: Ran --unprotected-vm-with-firmware with patched crosvm. Change-Id: I91d289828800e5e7eefffc00c964713153cc9ad5	2022-05-12 14:20:22 +00:00
Andrew Walbran	a0ecabdae4	Move writable data to a higher block of memory. ... This means we can map the text and rodata sections read-only, and enable WXN. The data section must be copied from its (now readonly) load address to the writable block. Bug: 223166344 Test: Ran unprotected VM under crosvm. Change-Id: I9105f200c8bd937f6e3a504fed7d0fb5e38ff366	2022-04-13 14:12:16 +00:00
Andrew Walbran	267f6c1fcc	Use hardcoded pagetable initially. ... This pagetable is built into the binary, and maps device memory and enough RAM for the DT and image. It can later be replaced by a proper pagetable built in Rust. Using a hardcoded pagetable means we avoid making any memory access before enabling it, which avoids a bunch of cache issues. Bug: 223166344 Test: Ran unprotected VM under crosvm. Change-Id: I567e377ab93881aa357428f750b11be6b3aad034	2022-04-13 14:08:00 +00:00